WO2016055019A1

WO2016055019A1 - Dental restoration method

Info

Publication number: WO2016055019A1
Application number: PCT/CN2015/091577
Authority: WO
Inventors: 王茜
Original assignee: 王茜
Priority date: 2014-10-09
Filing date: 2015-10-09
Publication date: 2016-04-14
Also published as: CN104352284A; CN104352284B

Abstract

A dental restoration method comprises the following steps: (i) implanting a final abutment tooth and a dental implant member into jawbone, the final abutment tooth comprising a repairable part (601) made from a non-titanium material and being customized by modifying the repairable part (601); (ii) measuring the shortest distance X1 between L1s, L1s being respectively located on the surface layer of the repairable part (601) and the surface layer of a repairable part in an oral cavity; (iii) comparing X1 with a preset value Y1, wherein Y1 is greater than 0; (iv) if X1 is smaller than Y1, modifying an incision directly, or modifying the repairable part located at L1 in the oral cavity, in order to increase the shortest distance X1 until X1 is greater than or equal to Y1; (v) repeating steps (i) and (iv), until the corresponding shortest distance Xn measured at one or more points of the surface layer of the repairable part and the corresponding preset value Yn meet the condition that Xn is greater than or equal to Yn, wherein Yn is greater than 0, n is an integer and greater than or equal to 2, and in this way, the final abutment tooth can be fully customized; (vi) producing a dental crown on the basis of the shape of the fully customized final abutment tooth; and (vii) implanting and mounting the dental crown onto the fully customized final abutment tooth to complete dental restoration.

Description

Dental repair method

Technical field

The present invention relates to a dental restoration method.

Background technique

An exemplary example to be described so far is a method related to dental restoration. This method has been found to be particularly suitable for direct intraoral repair of non-titanium based abutment components and will be described in detail below.

The intermediate medulla (dental pulp) in human teeth is surrounded by a layer of calcified material called dentin, which is connected to arteries, veins and nerves. The tooth protrudes from the alveolar or alveolar space, and the alveolar bone is inhibited by the upper jaw (maxillary) or mandibular (mandibular) alveolar bone. Some of the teeth that actually conform to the alveolar grow in a certain order. The protruding part of the tooth (called the "crown") has a dense, smooth surface and is covered by a layer of calcified connective tissue, the enamel. The gums or gum tissue wraps around the base of the crown and extends between adjacent faces of the teeth and properly supports the teeth.

Loss of teeth can be caused by various diseases such as caries, tooth defects, pulpitis, physical injuries, gum disease and periodontal disease. Periodontal disease is caused by a thick layer of bacteria called plaque, which hardens calcification over time. Mild inflammation such as gingivitis may have symptoms of redness and bleeding gums, which may progress to other supporting structures including alveolar bone, which in turn worsens into a more advanced stage of periodontal disease, namely periodontitis. The gums are atrophied or detached from the edges of the teeth, resulting in the formation of a trough between the teeth and the gums. As the disease progresses, the teeth become loose and it is usually necessary to perform the removal. Therefore, periodontal disease is the main cause of tooth loss.

Many well-known design methods exist today for implanting and protecting dental restorations. The most common type of implant is the intraosseous implant, in which the implant will first be surgically placed on the patient's tibia. The implant is a model of the root structure and it extends into the gums to support the installed abutment, thereby obtaining a dental restoration. A common abutment is a cylindrical structure that features a spiral into the implant and the crown is attached to the top of the abutment. In general, a routine method of performing dental implant restoration by an experienced dentist includes the following twelve steps: (1) removing the sealing cap; (2) preparing the tray while testing the impression tray, demarcating the boundaries to cut and open Form to allow the copied stamp to extend (referred to as "opening technology"); (3) place the normal stamp to be copied on it and tighten it; (4) inject the impression material ready (5) press the stamp into the top of the replica stamp and wait until it is ready; (6) loosen the duplicate stamp; (7) inject the wax into the window portion, around the extension of the replica stamp (8) peeling off the impression tray attached to the replica stamp; (9) connecting the implant model and replicating the impression, and feeding the above components into the dental laboratory; (10) the laboratory technician will pour the material and prepare the stone The quality model, which is then returned to the dentist; (11) the dentist selects the stone model he or she considers to be the most suitable, and sends it to the laboratory again. (12) The laboratory technician adjusts the abutment and may Once again sent to the dentist for trial wear in the patient's mouth, After the doctor based on the required adjustment abutment again, while the installation of the top crown to the abutment.

A cast implant abutment is disclosed in US Pat. As shown in Fig. 1, the cast implant abutment 10 is a relatively excellent acrylic plastic cast body. The abutment 10 has 12 bottom external threads that can be accurately screwed into each of the threaded fasteners of a cylindrical apatite coated implant (not shown). The acrylic abutment 10 may be mechanical or model cast. The outer dimensions of the abutment 10 conform to the external dimensions of the type of implant being attempted. The top of the abutment 10 has a groove system 14 that is intersected by a line, and a groove is engraved on the surface 16 of the system to allow the implant 10 to be rotated downward into the patient's tibia (not shown). ). This is already integrated in the implant Structural and surgical work after removing the cover. At this point, the abutment 10 can be screwed into the position very easily, while adding a small amount of lubricant to ensure that it can be easily loosened without breaking the acrylic material. Thereafter, it is cut at an angle to form the surface 18 such that the surface is in a coordinated relationship with the implant or abutment of the tibia in the other oral cavity, while also maintaining the corresponding (opposite-direction) tibia. Such re-adjustment or repositioning of the abutment 10 angle is the key to ensuring the abutment and its overall comfort. As described in Sendax Requirement 1, the plastic implanted abutment 10 will be used for the placement of a metal (and ultimately) abutment that has a mating match with an internally threaded implant. ability.

It is clear that the base tooth 4,975,075 of Sendax is still a temporary abutment, just as a functional model (phantom) for the final or permanent abutment in later stages. The abutment 10 will be sent to a laboratory for making a final or permanent abutment. As disclosed by Sendax, the final fabrication of the customized abutment will complete the molding, pouring, finishing, and polishing of the external work in an indirect laboratory before the structure is placed into the inlet cavity and screwed into place. (Lines 65-68, Column 2) After the restoration of the teeth, the temporary abutment 10 will be discarded and replaced with a final or permanent abutment that can be used in the patient's mouth for several years or For decades.

There are certain disadvantages to the well-known oral prosthesis, the procedure of which is extremely complicated, which results in a very low penetration rate of the implant. Less than 5% of general dentists now have the ability to perform surgical replacements for dental implants, and less than 10% of general dentists actually perform implant restoration work due to the complexity of current technology. To increase the penetration rate in the dental implant restoration industry, dentists need to use simplified repair procedures and techniques that are straightforward, cost-effective, and include very low hospital visits. Emphasis on the following responsibilities is also necessary, in order to properly implement a precise transfer of a soft tissue model in the planned implant area, most abutment systems now use closed or open tray impression techniques. These techniques require a dental laboratory technician to perform a revision of the abutment in the laboratory; or using an alternative method, a doctor uses a temporary plastic abutment to correct the patient's mouth and then deliver it. To the laboratory, the casting of metal abutments is performed based on temporary abutments. These complicated procedures significantly increase laboratory costs, reduce dentists' profits by about 1/4 to 1/3, and also cost patients more money and time.

Another problem is that, according to the prior art, dental implant systems require a large number of threaded prosthetic crown attachments to coordinate different repair methods for use in dental practice. Recently, there are three main repair methods, fixed single or multi-unit cemented denture dentures, detachable single or multi-unit spiral indwelling dentures, and detachable overdentures. In order to match these different repair methods, it is necessary to have a large inventory of different components, which requires a lot of time and money for the dental professional.

Another problem associated with dental implants remains that the surgeon and the restoration dentist have no ability to select the final abutment. The dental laboratory will specifically determine what type of abutment is needed based on the analysis of the plastic impression placed on the patient's mouth. This can prevent the surgeon or the repairing dentist from having the ability to observe and correct any angular problems or differences in tissue thickness.

From an advantageous point of view, the presently invented technology provides a new method of dental implant repair that demonstrates numerous advantages such as simplified procedures, cost-effectiveness, reduced queuing time, and reduced 1-2 experiments. Room visits as well as reduced hospital visits. In some instances, the techniques of the present invention have the ability to allow an oral surgeon or prosthetic surgeon to adjust the abutment at any time to achieve a desired shape, delineating the abutment. The method of the invention can be performed at the dentist's office, with minimal error-free levels once the gum tissue and crown are installed, while reducing the need to return the abutment system to the dentist's laboratory for commissioning.

Summary of the invention

It is an object of the present invention to provide a dental restoration method, the technical solution of which is as follows:

(1) A dental restoration method comprising the following steps:

(i) implanting the final abutment and implant member, consisting of a sub-crown member, into the tibia, where the final abutment includes a repairable portion made of a non-titanium material and modified by a repairable portion. Customize;

(ii) directly measuring the shortest distance X1, which is located between L1, on the surface of the repairable part mentioned above and on the surface of the repairable part of the oral cavity;

(iii) comparing X1 with a predetermined value Y1, and Y1>0;

(iv) If X1 < Y1, the incision can be directly modified, or the modifiable portion of the mouth located in L1 can be modified, and the modifiable portion can be removed from the oral cavity to increase the shortest distance X1 until X1 ≥ Y1;

(v) optionally repeating steps (i) and (iv), measuring the respective shortest distance Xn and the corresponding predetermined value Yn at one or more points of the surface of the modifiable portion until Xn > Yn, where Yn > 0 , n is an integer, and n ≥ 2, so that the final bridge abutment can be completely customized;

(vi) making a crown based on the shape of the fully customized final abutment;

(vii) The crown is implanted on a fully customized final abutment to complete the dental restoration.

(2) The dental restoration method according to (1), wherein the non-titanium material mentioned in the method is selected from the group consisting of stainless steel, gold, silver, platinum, iron, palladium, ruthenium, osmium, iridium, osmium; Carbides such as silicon carbide, borides, nitrides, silicides; salts such as aluminosilicates, silicates such as lithium silicates, aluminates, phosphates, fluorates, zirconates and titanates; Ceramic materials such as porcelain, white stones containing alumina, and glass; polymeric materials; composites of any composite such as inorganic-inorganic composites and polymer-inorganic composites composed of organic binders, and any combination thereof Things.

(3) The dental restoration method according to (1) or (2), wherein the non-titanium material mentioned in the method is selected from the group consisting of zirconium, polyetheretherketone (PEEK) and alumina.

(4) The dental prosthetic method according to any one of (1) to (3), wherein the final abutment tooth mentioned in the method comprises a modifiable portion and an unmodifiable portion.

(5) The dental prosthetic method according to any one of (1) to (4), wherein the final abutment tooth in the oral cavity is selected from the group consisting of periodontal tissue, gum tissue, one tooth, and repairable section.

(6) The dental prosthetic method according to any one of (1) to (5), wherein the final abutment tooth mentioned in the method has a hardness of H ≥ 10 under the ASTM D-1474 standard (Nup Hardness value) or equivalent.

(7) The dental prosthetic method according to any one of (1) to (6), wherein the dental implant component mentioned in the method has characteristics of rigidity, compatibility, and tonicity.

(8) The dental prosthetic method according to any one of (1) to (7), wherein the dental implant component mentioned in the method comprises a pure titanium material, titanium dioxide (TiO2), a titanium alloy such as a tial6v4 alloy , stainless steel, zirconium, cobalt chromium molybdenum alloy, polymer materials, and materials made from any combination of the above.

(9) The dental prosthetic method according to any one of (1) to (8), wherein the final abutment tooth mentioned in the method is pre-generated and comprises a rigid and biocompatible A material similar to dentin.

(10) The dental prosthetic method according to any one of (1) to (9), wherein the final abutment tooth mentioned in the method comprises a material selected from the group consisting of a metal material; an oxide; a carbide Such as silicon carbide, borides, nitrides, silicides; salts such as aluminosilicates, silicates such as lithium silicates, aluminates, phosphates, fluorates, zirconates and titanates; ceramic materials Such as porcelain, white stones containing alumina, and glass; polymeric materials; any composite such as composed of an organic binder A composite of an inorganic-inorganic composite material and a polymer-inorganic composite material, and any combination thereof.

(11) The dental restoration method according to any one of (1) to (10), wherein the metal mentioned in the method is selected from the group consisting of stainless steel, gold, silver, platinum, iron, palladium, rhodium, ruthenium, osmium, iridium , amalgam, alloys, and any combination of the foregoing.

(12) The dental prosthetic method according to any one of (1) to (11), wherein the oxide mentioned in the method is selected from the group consisting of oxide elements of IIIA, IIIB, and IVB in the periodic table; Hf, Y , Ce, Sc and Er oxides; zirconia, aluminum oxide or aluminum oxide, silicon dioxide, silicon oxynitride, mullite, lithium oxide, zinc oxide, potassium oxide, phosphorus pentoxide, calcium oxide, oxidation Antimony, antimony oxide and magnesium oxide; dyed and fluorescent metal oxides such as antimony oxide, antimony oxide, antimony oxide, antimony oxide, antimony oxide, iron oxide, manganese dioxide, antimony oxide and vanadium pentoxide; .

(13) The dental restoration method according to any one of (1) to (12), wherein the polymer material mentioned in the method is selected from the group consisting of a thermosetting material, a thermoplastic material, an acrylic polymer, a methacrylic polymer, Polymethyl methacrylate (PMMA), poly(ethyl methacrylate), poly(butyl methacrylate), polyamide, polyester, polyaryl ether ketone (PAEK), polyether ketone ketone (PEKK) , PEEK, PEKEKK, vinyl ester, epoxy resin, polyimide, polyarylate, polyacrylate, photopolymer, polyolefin, ultra high molecular weight Polyethylene, high density polyethylene (HDPE), polyurethane, polypropylene, polystyrene, acrylated polyester, styrene-acrylonitrile copolymer, acrylonitrile-butadiene-styrene polymer, polysulfone, polycarbonate Ester, polyoxymethylene, polydimethacrylate (PUDMA), triethylene glycol dimethacrylate (TEGDMA), ethylene glycol dimethacrylate (PEGDMA), urethane dimethacrylate ( UDMA), a polymer of hydroxyethyl methacrylate, ethylene glycol dimethacrylate (EGDMA), diethylene glycol dimethacrylate (DE GDMA), triethylene glycol dimethacrylate (TEGDMA), methyl acrylate methyl ester, trimethylolpropane (TMPTMA), diphenyl sulfone dimethacrylate, polybutylene glycol dimethacrylate (PTMGDMA), hexanediol dimethacrylate (1,6HDDMA), polycarbonate diol dimethacrylate (PCDMA), polyphenylene sulfide; methacrylic acid urethane mixture (UDMA), poly Carbonate diol dimethacrylate (PCDMA) and triethylene glycol dimethacrylate (TEGDMA); bisphenol A (bis-GMA) difosyl methacrylate adduct and acrylic acid counterpart; a composition of 2,2,3-trimethylpentane diisocyanate with a hydroxyalkylacrylic acid species such as hydroxyethyl methacrylate and hydroxypropyl acrylate; and any combination of the above.

(14) The dental prosthetic method according to any one of (1) to (13), wherein the polymer material mentioned in the method is made of one or more monomers or oligomers, which are low The polymer is selected from the group consisting of methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, acrylic acid, hydroxypropyl methacrylate, 2-hydroxy-1,3-dimethacryloxypropane, butyl methacrylate, methyl Isobutyl acrylate, butoxyethyl methacrylate, hydroxypropyl methacrylate, decyl methacrylate, glycidyl methacrylate, 2-methoxyethyl methacrylate, methacrylic acid 2-ethylhexyl ester, benzyl methacrylate, ethylene glycol dimethacrylate, ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, ethylene glycol acrylate, butylene glycol Dimethacrylate, methyl methacrylate, 1,3-butanediol dimethacrylate, 1,4-butanediol dimethacrylate, 1,6-hexanediol dimethacrylate , trimethylolpropane, propylene glycol acrylate, dimethylmethane pentaerythritol acrylate, acrylate, pentaerythritol tetra , ethylene glycol dimethacrylate, 2,2-bispropane, 2,2-bispropane (4-(2-hydroxy-3-methacryloxypropoxy)phenyl), 2,2-dimethane (4-methacryloxydiethoxyphenyl) , 2,2-bispropane and its ester (4-methacryloxypolyethoxyph-enyl), and the molecule contains methacrylic acid urethane bond, such as di-2-methacryloxyethyl-2,2,4-trimethylhexamethylene dicarbamate 1,3,5-tris(1,3-bis(methacryloyloxy)-1-2-propoxycarbonylaminohexane)-5-(1H, 3H, 5h) triazine 2,4,6-trion , urethane oligomer synthesis 2,2'-dimethane (4-hydroxycyclohexyl), 2-oxepanone, six Synthetic urethane oligomers of methylene diisocyanate, hydroxyethyl methacrylate, 1,3-butanediol polyurethane prepolymer, hexamethylene diisocyanate, hydroxyethyl methacrylate composite.

(15) The dental prosthetic method according to any one of (1) to (14), wherein the polymer material mentioned in the method further comprises a material selected from the group consisting of a pigment; an opaque material; fibers, powders and particulate matter; Materials such as glass fiber reinforced, bariumborosilicate glass materials, glass fiber reinforced composites (FRC) such as photopolymerized glass fiber composites; coatings such as silica, silicate glass, quartz, silicate, barium sulfate, molybdic acid Bismuth, methacrylic acid, alkoxy (Ba2Y (or) X), barium silicate, barium borosilicate, boron, borosilicate, lithium silicate, amorphous silica, ammonia And deaminated calcium phosphate and any combination of alumina, zirconia, tin oxide, cerium oxide, cerium oxide, titanium dioxide, carbon, graphite, aramid, polyethylene, polyester, polyamide; glass containing powder Inorganic fillers, such as silica, yttria glass, alumina glass, potassium glass and fluoroaluminosilicate glass, synthetic zeolite, calcium phosphate, potassium feldspar, fumed silica, aluminosilicate, calcium silicate , magnesium carbonate and quartz, among which inorganic Will be composed of chlorovinyltriethoxysilane, vinyltrichlorosilane, vinyltriethoxysilane, vinyltrimethoxysilane, vinyltriacetoxysilane, and vinyltrimethylsilanesilane (A The oxyethoxy group and any of the combination compositions described above are surface treated.

(16) The dental prosthetic method according to any one of (1) to (15), wherein the crown mentioned in the method is rigid and translucent.

(17) The dental prosthetic method according to any one of (1) to (16), wherein one of the materials contained in the crown is selected from the group consisting of porcelain, metal, metal alloy, ceramic material, and polymer. Materials, and combinations of any of the above combinations.

(18) The dental prosthetic method according to any one of (1) to (17), wherein the modification of the final abutment tooth mentioned in the method is by mechanical operation, chemical method, optical method such as laser cutting and ultraviolet ray Degradation, heat treatment such as heating control, and any of the above methods are carried out in cooperation with each other.

(19) The dental prosthetic method according to any one of (1) to (18), wherein the modification of the final abutment tooth mentioned in the method is selected from a drill bit or a rotary boring; a diamond; a multifunctional diamond tooth Drilling; dental alloy drill bit made of tungsten carbide steel; dental sintered diamond drill bit; cone honing; dental diamond disc; cemented carbide tool; parallel milling cutter; dental steel drill; and tools made of any combination of the above Operational.

(20) The dental prosthetic method according to any one of (1) to (19), wherein in the method, before the tool is used, the final abutment teeth are pretreated to relieve the pressure at L1; The pretreatment may be selected from any of the following, such as steam therapy, dissolution, chemical treatment such as etching and degradation using reagents such as HF, acid and formulation.

DRAWINGS

Figure 1 is a perspective view of a cast implant abutment in accordance with the prior art of Sendax, U.S. Patent 4,975,059;

Figure 2a depicts an oral prosthetic system comprising a final abutment component and a dental implant component that will be integrated into a single body;

Figure 2b depicts an oral prosthetic system similar to that of Figure 2a except that the final abutment assembly has a correctable portion and an uncorrectable portion;

Figure 3a depicts an oral prosthetic system comprising a final abutment component and a dental implant component having two separate pieces;

Figure 3b depicts an oral prosthetic system similar to that of Figure 3a except that the final abutment assembly has a correctable portion and an uncorrectable portion;

Figure 4a depicts an oral prosthetic system including a final abutment component, a screw and a dental implant component;

Figure 4b depicts an oral prosthetic system similar to that of Figure 4a except that the final abutment assembly has a correctable portion and an uncorrectable portion;

Figure 5a depicts an oral prosthetic system including a final abutment component, a screw, a connector and a dental implant component;

Figure 5b depicts an oral prosthetic system similar to that of Figure 5a, except that the final abutment assembly has a correctable portion and an uncorrectable portion;

Figure 6 (i) depicts the aforementioned step (i) of installing a member located below the crown and including a final abutment component and a dental implant into the tibia;

Figure 6 (ii) depicts the above step (ii), that is, measuring the shortest distance X1;

Figure 6 (iii) depicts the above step (iii), comparing the value of X1 with the predetermined value of Y1;

Figure 6 (iv) depicts the above step (iv), directly adjusting the adjustable portion of the final abutment;

Figure 6 (iv) depicts the above optional (v) step, repeating the steps (ii) - (iv) in accordance with one or more other locations Ln;

Figure 6 (vi) depicts the above step (vi) of generating a complete custom crown;

Figure 6 (vii) depicts the above (vii) step of joining the crown to a fully customized final abutment assembly.

detailed description

The term "final" means that the final abutment component of the invention is different from the abutment 10 of US Pat. No. 4,975,059 to Sendax. The final abutment component of the current invention will be adjusted (customized) directly into the patient's mouth to become a permanent abutment that can be used in patients' oral cavity for years or even decades. Sendax's US Patent 4,975,059 Abutment 10 It is simply a temporary abutment, or it is a simulated body (or model) that is intended to be used in the next step of Sendax (to be replaced by a final or permanent abutment).

Referring to Figure 2a, the oral prosthetic system includes a crown 21, a member 22 under the crown (which includes a final abutment 23 and a dental implant component 24). The final abutment component 23 and the dental implant component 24 are integrated into a single structure. The entire final abutment assembly 23 is an adjustable portion as it is used in the oral prosthetic procedure of the present invention. 22 may be made of non-metallic material is located entirely below the titanium crown member, such as zirconium oxide; polyether ether ketone (PEEK); dental material from 3M ESPE (St.Paul, MN 55144) comprises Lava ^TM brand ceramic material such as LavaTM zirconia, Paradigm ^TM brand MZ100 type for

Paradigm ^TM brand MZ100 type for

And Paradigm ^TM brand C type for

Alumina Super Z (YTZP), and ZirDentTM brand computer-aided design/computer-aided manufacturing (CAD/CAM) materials were obtained from C5 Medical Plant (2451 Riverside Park Road, Columbia State Link, 81505).

Figure 2b is similar to Figure 2a except that the final abutment assembly 23 of Figure 2b has a correctable portion 23a and an uncorrectable portion 23b. The correctable portion 23a can be corrected in the dental restoration process of the present invention, and the non-correctable portion 23b can be corrected. The uncorrectable portion 23b is used to form a sizing plug and a sizing adjustment. The sizing and setting plugs are disclosed in the pending U.S. Application Serial No. 13/138,726, which is incorporated herein in its entirety. For example, in Figure 1 of U.S. Application Serial No. 13/138,726, a sizing device 102 and a sizing plug 105 are illustrated, and how they work together during the dental restoration process. Various forms of shaping plugs may be used. For example, there may be one or more protrusions at the bottom of the uncorrectable portion 23b, and there may be a regular or irregular annular shoulder on the uncorrectable portion 23b. In practice In the meantime, the dental implant assembly 24, the correctable portion 23a, the uncorrectable portion 23b, and the above-described shaping plug constitute a separate member (i.e., the entire No. 22 sub-crown), and are made of titanium-free metal as described above.

According to Figure 3a, the dental restoration system consists of a crown 31 and a secondary crown member 32. The secondary crown member 32 includes a final abutment assembly 33 and a dental implant assembly 34. A screw 36 extends from the top of the dental implant assembly 34. At the bottom of the final abutment assembly 33 is a nut structure 35 (i.e., an internal tapped hole). Screwing the screw 36 into the nut structure 35 secures the final abutment assembly 33 and the dental implant assembly 34 together. In other practical operations, a chemically bonded (e.g., glue) protrusion similar to the screw 36 and a slot similar to the nut structure 35 and mating with the screw 36 can be used to secure the 33 and 34 together. Although the final abutment component 33 is made of titanium-free metal as described above, the dental implant assembly 34 and the screw 36 are made of a titanium alloy such as titanium, titanium oxide (TiO), and TiAl6V4 alloy. . In other practical operations, the dental implant assembly 34 and the screw 36 can also be made of titanium-free metal.

Figure 3b is similar to Figure 3a except that the final abutment assembly 33 of Figure 3b has a correctable portion 33a and an uncorrectable portion 33b. The correctable portion 33a can be corrected in the dental restoration process of the present invention, and the uncorrectable portion 33b can be corrected. As described above, the uncorrectable portion 33b is used to form the sizing plug and the sizing adjustment.

According to Figure 4a, the dental restoration system consists of a crown 41 and a secondary crown member 42. The secondary crown member 42 includes a final abutment assembly 43 and a dental implant assembly 44. The lower end of the final abutment assembly 43 is formed into a polygonal projection 43e, and the upper end of the dental implant assembly 44 is formed into a polygonal slot 44r, 44e and 44r, which prevents rotation of the final abutment assembly 43 associated with the dental implant assembly 44. Finally, the abutment member 43 has a hole (preferably an internal screw hole) 45, and the tooth graft assembly 44 has an internal screw hole 46. The positioning screw 47 is passed through the aperture 45 and screwed into the aperture 46 to secure the final abutment assembly 43 and the dental implant assembly 44 together. Although the final abutment assembly 43 is made of titanium-free metal as described above, the dental implant assembly 44 and the set screw 47 may be made of a titanium alloy such as titanium, titanium oxide (TiO), and a TiAl6V4 alloy. In other practical operations, 44 and 47 can also be made of titanium-free metal.

Figure 4b is similar to Figure 4a except that the final abutment assembly 43 of Figure 4b has a correctable portion 43a and an uncorrectable portion 43b. The correctable portion 43a can be corrected in the dental restoration process of the present invention, and the correction portion 43b is not correctable. As described above, the uncorrectable portion 43b is used to form the sizing plug and the sizing adjustment.

According to Figure 5a, the dental restoration system consists of a crown 51 and a secondary crown member 52. The secondary crown member 52 includes a final abutment assembly 53 and a dental implant assembly 54. The lower end of the final abutment assembly 53 is formed into a multi-angle slot 53r, and the upper end of the dental implant assembly 54 is formed into a polygonal projection 54r, and a connector (not shown) having projections at both ends is used to connect 53r and 54r. The rotation of the final abutment assembly 53 associated with the dental implant assembly 54 is prevented. Finally, the abutment member 53 has a hole (preferably an internal screw hole) 56, the connector 55 has a hole (preferably an internal screw hole) 57, and the tooth graft assembly 54 has an internal screw hole 58. The final abutment assembly 53, the connector 55 and the dental implant assembly 54 can be secured together by passing the set screw 59 through the

apertures

56, 57 and 58. Although the final abutment assembly 53 is made of titanium-free metal as described above, the dental implant assembly 54, the connector 55 and the set screw 59 may be titanium such as titanium, titanium oxide (TiO), and TiAl6V4 alloy. Made of alloy. In other practical operations, 54, 55, and 59 can also be made of titanium-free metal.

Figure 5b is similar to Figure 5a except that the final abutment assembly 53 of Figure 5b has a correctable portion 53a and an uncorrectable portion 53b. The correctable portion 53a can be corrected in the dental restoration process of the present invention, and the non-correctable portion 53b can be corrected. As described above, the uncorrectable portion 43b is used to form the sizing plug and the sizing adjustment.

Figures 6(i) - 6(vii) illustrate the aforementioned steps (i) of performing dental restoration in accordance with the present invention using an exemplary method - —(vii). Figure 6(i) illustrates step (i), according to which a secondary crown member 600 (such as 22, 32, 42 and 52 in Figures 2a - 5b) comprises a final abutment component 601 (such as Figure 2a) - 23, 33, 43, and 53 in 5b) and a dental implant component 602 (such as 24, 34, 44, and 54 in Figures 2a-5b). A portion of the secondary crown member 600, a typical dental implant component 602, is placed (e.g., screwed) into the patient's tibia 699. The invention can be used to replace a single tooth or multiple teeth. Instead of a single tooth, the implantation site can be first prepared using conventional techniques. Position preparation may involve drilling work, and the drilling width is approximately the width of the dental implant component. Alternatively, the implant site can also be tapped to prepare an appropriately sized hole, and the thread size should be such that a threaded dental implant component is threaded into the hole and implanted into the surrounding tissue. Multiple tooth replacements typically use implanters and implant bridges. For example, a void caused by a plurality of missing teeth can be covered with a prosthesis, and one end of the correctable abutment component in the secondary crown member can be anchored according to the invention, and the other end is implanted with a natural tooth (or a tooth) Crown member) bonding. The prosthesis anchored at both ends acts as a "bridge" of voids.

At the beginning of the installation, the dental implant assembly cannot withstand normal chewing strength. Prostheses such as abutment components and crowns can only be installed after the support tissue has grown around the implanted teeth. During this time, a closure screw may be inserted to keep the inside of the implant clean and to prevent contamination of surrounding tissue. As shown in Fig. 6(i), the bone tissue within the tibia 699 is combined with the dental implant component 602 after a period of time. The secondary crown member 600 is then assembled and secured with the dental implant assembly 602 inside the patient's mouth. In some practical operations, the entire final abutment component 601 can be modified and thus can be referred to as a modifiable portion. In other practical operations, the final abutment component 601 includes a correctable portion (for display, such as 23a, 33a, 43a, and 53a in Figures 2a-5b) and an uncorrectable portion (not shown, such as Figures 2a-5b). 23b, 33b, 43b and 53b). As noted above, the final abutment component 601 is made of titanium-free metal; the component 601 should be customized by modifying (eg, cutting, etc.) the correctable portion (the portion after the abutment), depending on the particular oral environment of the patient.

Figure 6(ii) illustrates step (ii), according to which the dentist can directly measure a position L1 of the correctable portion surface (such as the top of the final abutment component 601) and an object surface around the correctable portion (such as The shortest distance X1 between the upper teeth 604). Measurements should be made within the patient's oral environment, or in the mouth.

Figure 6(iii) illustrates step (iii), according to which the dentist should compare the X1 value with a predetermined value Y1, where Y1 > 0. For example, if Y1 is 2 mm, the minimum thickness of the crown to be mounted at the position L1 is 2 mm. If X1 ≥ Y1 (for example: X1 = 2.5 mm), there is sufficient space to mount a crown having a thickness greater than Y1 at the position L1, and the crown will be very strong at the position L1. In such cases (ie, X1 ≥ Y1), the dentist does not need to correct the abutment 601 at position L1.

Figure 6(iv) illustrates step (iv), according to which, if the dentist finds that X1 < Y1 (e.g., X1 = 1.5 mm), there is not enough space at position L1 to mount a crown having a thickness greater than Y1, and This crown will be very unreliable at position L1. In such cases (ie, X1 < Y1), the dentist must correct the abutment 601 at position L1. The dentist can adjust the correctable portion at position L1 (ie, increase the shortest distance X1 until X1 ≥ Y1) within the patient's oral environment without the need to remove the correctable portion from the patient's mouth. For example, the dentist can use the drill bit 610 to sever a small portion of the thickness of at least 0.5 mm from the abutting component at position L1. Increase X1 from 1.5 mm to 2.0 mm so that X1 ≥ Y1.

Figure 6(v) illustrates step (v), according to which, if the dentist finds that the corresponding shortest distance Xn of one or more positions Ln of the correctable partial surface is less than the corresponding predetermined value Yn (i.e., Xn < Yn), Where Yn>0, n is an integer, and n≥2, the dentist must sufficiently perform the above steps (ii)-(iv) until Xn≥Yn at the position Ln. At this point, the dentist has completely customized the final abutment component, for example, the dentist directly measures the position L2 of the correctable portion surface (injecting the side of the final abutment component 601) and the surface of the object surrounding the correctable portion (such as the adjacent tooth 605). Shortest distance between From X2. If X2 < Y2 (ie, X1 = 1.0 mm and Y2 = 1.3 mm), there is not enough space at position L2 to mount a crown with a thickness greater than Y2, and such a crown (if installed) will be very weak at L2. . In such cases (ie, X2 < Y2), the dentist must correct the abutment 601 at position L2. The dentist can adjust the correctable portion at position L2 (ie, increase the shortest distance X2 until X2 ≥ Y2) within the patient's oral environment without the need to remove the correctable portion from the patient's mouth. For example, the dentist can sever a small portion of the thickness of at least 0.3 mm from the abutting component at position L2. Increase X2 from 1.0 mm to at least 1.3 mm such that X2 ≥ Y2.

Referring to Figure 6, Figure 6, according to the final abutment size customized in the previous step, the dentist can use the method known at the time, such as: using the impression plate 688, completely based on the specific patient's teeth to make the crown 620 (such as 21, 31, 41 and 51) shown in Figures 2a-5b.

Referring to Figure 6, Figure 7, the crown 620 is then adhered to the final abutment 601 (customized entirely according to the patient's abutment) in the oral environment (in the patient's mouth) to complete the dental restoration.

The materials used for dental implants are strict and have high biocompatibility and tonicity. The material of the implant is best and the type of osseointegration or intraosseous growth (bone tissue growth) is recommended, and it is also an ankylostic material. For example, the graft can be a hollow or solid structure. The hollow structure contributes to the intraosseous growth of the graft. In addition, the graft may contain holes that penetrate deep into its inner wall to promote bone growth. The bottom of the graft needs to be tapered to provide a dynamic load on the teeth and tissue surrounding the entire gum. For example, the bottom taper can be about 2 to 3 levels. The cone at the bottom of the graft, ie the diameter of the graft, should be gradually reduced from top to bottom.

The graft material should be selected from the following combinations: pure titanium, titanium oxide, titanium alloy (such as TiAl ₆ V ₄ alloy), stainless steel, zirconium, cobalt chromium molybdenum alloy, polymeric materials and related reasonable combinations.

In some examples of the invention, the implant has a biostable polymeric material and an agent contained within the polymeric material. The agent should diffuse from the polymeric material to surrounding tissue, such as bone tissue and nearby tissue. In other words, the agent can be spread locally or systematically through the polymeric material in the implant. Examples of agents include, but are not limited to, steroid anti-inflammatory agents, microbicides, antiviral complexes (such as acyclovir and interferon); anti-protozoal drugs (such as chloramphenicol and sulfamethoxazole); analgesics; Family analgesics (such as aspirin, salicylic acid, diflunisal, morphine and morphine salts); antiseptic ingredients (such as cetylpyridinium chloride, benzalkonium chloride, chlorhexidine and similar agents); Fungal ingredients (such as cetyltrimethylammonium bromide); antifungal agents (such as polyethylene glycol, alkyl aryl sulfonates, miconazole nitrate, metronidazole, trimethoprim); local anesthetics ( Such as procaine salt, benzocaine, lidocaine, procaine, bupivacaine, tetracaine, lidocaine, capocaine and capocaine salts); antiasthmatic drugs ( Such as adrenaline, ephedrine, epinephrine, aminophylline and theophylline); anticoagulants (heparin and heparin sodium, such as calcium and heparin sodium, dicoumarin); antihypertensive drugs (such as methyldopa, Hydrazine, clonidine, chlorothiazide, timolol, naphthoate, metoprolol, prazosin hydrochloride and furosemide; and vitamin B2, B12. C. Yi anti-inflammatory agents can be selected from: corticosteroids (such as hydrocortisone, hydroxyllamamolone, methyl dexamethasone, dexamethasone phosphate, beclomethasone dipropionate, valproate valerate, ground Ned, deoxymetazone, deoxycorticosterone acetate, dexamethasone, diclofen, diacetochlor, difluorocodone valerate, fluadrenolone, flucludine, fluoxetine butylester, fluoride Dragon, acetate flupidine (fluprednylidene), acetone fluorohydrogen hydrochloride, Hasinide, hydrocortisone acetate, hydrocortisone butyrate, methylprednisolone, triamcinolone acetonide, can Pine, todose, flutetonide, hydrocortisone, difluorosone, fluradrenolone, hydrocortisone, difluorosone diacetate, fluradrenolone acetonide, hydroxyxamone, amcinafel, anciceptrol, doubling Tamsone and balanced lipids, prednisone, prednisone acetate, clostronone, clescinolone, diclofen, difluprednate, flucioronide, flunisolide, fluorometholone, fluoropyron Fluoride, nylon hydrocortisone valerate, cyclopentanoic acid Hydrocortisone, hydrohexyl ester, Prednisone, parramexone, hydrogenated prednisone, prednisone, beclomethasone dipropionate, triamcinolone and mixtures thereof). The recommended anti-inflammatory agent for the steroid is hydrocortisone.

In various examples, the final abutment in the present invention needs to be manufactured in advance, using a material that is strong and rigorous, biocompatible, and similar to the patient's dentin.

Prefabrication is required based on the length and angle of the final abutment, although prefabricated or soft undulating abutments are currently not suitable for use in the case. For example, the most advanced abutments can be preformed into a variety of desired shapes, including cylindrical, strip, cube, polyhedron, oval and disc shapes.

In one case, the final abutment of the incisors can be a flat abutment designed specifically for the anterior teeth, adapted to the natural anatomy, in accordance with the Mahalanobis distance (greater than the facial language distance).

In general, even if the final abutment has a nearly accurate shape and shape, it needs to be adapted to further finishing and shape processing (or custom requirements) in order to produce a desired product that meets the specific patient's oral environment.

After the final abutment trimming (or custom) is completed and conforms to the patient's oral environment, not only can the crown be more compatible with the secondary crown, but also the misalignment between the denture and the adjacent teeth (if any) can be compensated to the greatest extent. The following conditions may lead to misalignment of the teeth: the fit of the implant to the direction of the gingival surface is greatly different from that of the adjacent teeth. As such, the prior invention eliminates the need for abutment angles in previous processes to avoid tooth misalignment.

The prefabricated final abutment is factory-made for commercial products that are easy to trim (customized). However, the abutment can also be customized using conventional methods such as molding. As is known to professionals, dental molds can be made from wax. The wax can be melted in the furnace to form a die, and then melted into a suitable material (such as an alloy) to form a dental mold.

In the case of the selection, the material currently used to make the final abutment, whether alone or in combination with other materials used to make the crown, has a protective film that exhibits attractive optical properties and therefore has a high aesthetic value. It simulates the appearance of natural teeth from color, shade, transparency and translucency. For example, there may be a circle around the gums of the final abutment that is not covered with a crown. If these parts are made of metal or plastic directly, there will be no natural tooth luster, and the toothbrush will leave traces of affection on the patient's face.

Although the dressing material may be used in the present invention, in terms of aesthetic value, the product currently tends to use porcelain, composite materials and ceramics instead of pump alloys and metals, because the former is closer to the color of the adjacent teeth.

The transparency of human teeth gradually decreases from enamel to dentin. Similarly, in the recommended case, a more transparent material is used to make the crown, and a material with lower transparency and chromaticity is used to make the final abutment.

If necessary, more than one dye may be formulated according to the formulation to form the final stent component and the crown, or the constituent materials therein, forming a color tone similar to dentin and enamel. For example, a pink coloring agent can be obtained by dissolving vanadium oxide in zirconium oxide as a solid solution. Dyes include, but are not limited to, oxides of Pr, Er, Fe, Co, Ni, Ti, V, Cr, Cu, and Mn, such as Fe2O3, Er2O3, and MnO2. Under certain conditions, there is also a mixture of Er2O3, Pr6O11, Fe2O3, ZnO and zirconia, which can make the dentin of the dentin good.

For some patients, the physical, chemical, and biological properties of the material may be more important than its aesthetics. Based on this, we prefer materials with high strength, stable performance, good biocompatibility and chemical durability, completely replacing the functions of natural teeth, and can maintain physical properties for a long time, even when contacting liquids in the oral cavity, such as acidic liquids. Still able to maintain a stable nature. As long as the material of the final stent of the tooth is repairable, it may be satisfied in a broad sense. For example, according to the ASTM D-1474 standard, a typical parameter for the final stent material is hardness H (one of K.H.N, Knoop hardness number). Although the hardness of the dentin is not large, that is, 30-70K.H.N, the material of the final stent is one. Generally, it is equivalent to 10K.H.N and above, slightly better than 30K.H.N, and most preferably greater than or equal to 70K.H.N.

In the Knoop hardness test, the diamond apex is pressed on the polished surface of the experimental material for a certain period of time with a certain force, and then the resulting indentation is observed with a microscope. Knoop hardness HK or KHN is calculated by the formula: HK = load force (kgf) / pressing area (mm ² ) = P / (CpL ² ), and L = length of indentation along the long axis, Cp = shape of the indentation The relevant correction factor, ideally 0.070279, P = load. However, it is important to know that in addition to Knoop hardness, there are other methods for measuring the hardness and strength of materials. The invention also uses other measures. For example, the Mohs hardness scale is a measure of the scratch resistance of various materials, that is, a softer material is made with a harder material. In one case, the final stent component has a Mohs hardness of from about 2.0 to about 5.8. In other instances, the stent component has a Mohs hardness of from about 6.2 to about 9.8.

In some cases, it is often desirable to have a final stent material that can be directly trimmed in the patient's oral environment, trimmed and shaped in a short period of time, or refinished and reshaped, thus eliminating the need for corrective wear. The trouble of the instrument has no side effects.

In certain preferred embodiments, the direct conditioning of the final stent component does not have any side effects, such as heat shock of the tibia. Because we can effectively control the dressing, so that the heat generated is very small; and the heat transfer of the stent and implant material is very low, can not transfer heat to the tibia. Moreover, if necessary, the cooling system can be used to control the heat and protect the tibia. A better solution is to use a titanium-free material as a preparation material for the scaffold component.

The final scaffold component does not show micro-cracks during the dressing process. In addition, it is biocompatible, does not cause rejection, does not degrade and corrode in the oral environment, and is strong enough to match the chewing effect of the crown. Aesthetic requirements.

The inventive step (such as step 2 above) directly measures the shortest distance X1, that is, the shortest distance between the surface of the final stent component at the position of the oral environment L1 and its surrounding material surface, and the substance surrounding the final stent component may be periodontal. One or more of tissue, gum tissue, teeth, and prosthesis. The minimum value of X1 is expected to be close to the maximum thickness of the future crown at the L1 position. Experienced dentists know that strict thickness control must be applied to the crown to finally repair the "teeth" to adapt to the oral environment and to achieve good function. For example, the thickness of the crown at the final stent component may vary from 1 mm to 3 mm, depending on the chewing strength, and the thickness of the final stent may vary from 0.01 mm to 0.5 mm. Depending on the thickness requirements, the dentist or computer can determine the predetermined value Y1 (if necessary, Y2, Y3, Y4, etc.) at a specific location L1 (if necessary, L2, L3, L4)

If X1 < Y1, the thickness of the crown at the L1 position may not meet the thickness requirements around the position. With this invention, the final stent component can be trimmed or shaped directly at the L1 position of the mouth (without getting outside the mouth), extending the minimum distance X1 until X1 ≥ Y1, in other words, the position L1 is satisfied. Thickness requirements.

The positions L1 and Ln, in a broad sense, refer not only to one point but also to a small area of the surface of the final stent component to be repaired, such as 0.5 mm ² , 1.0 mm ² , 2.0 mm ² and the like.

On the surface of the final stent component, one or more locations to be repaired, for example, the dentist may need to repair 3 directly around the final stent component: L1, L2 and L3, at the top of the final stent component 2 places: L4 and L5, each corresponding to the shortest distance X1, X2, X3, X4 and X5; the corresponding predetermined values are Y1, Y2, Y3, Y4 and Y5.

In various solutions, the direct repair means of the final stent portion include mechanical methods, chemical methods, such as optical methods of laser cutting and UV degradation, such as thermal methods for controlling heating, or a combination of several of them. Various modifications include, but are not limited to, cutting, engraving, cross cutting, grinding, milling, trimming, conditioning, finishing, sanding, polishing, controlling evaporation, removal, shaping, discharge milling (EDM), water jet or laser Cutting, etc. For example, an experienced dentist can directly trim a tool (such as a hand tool), such as a drill or a rotary boring; diamond; a multi-purpose diamond round head; dental carbon Tungsten drill, such as tungsten carbide hard alloy steel; dental sintered diamond crucible; tapered crucible; dental diamond crankset; tungsten carbide cutter; parallel milling cutter; dental steel crucible, etc. Comprehensive use.锉 Blades can be round, round, inverted, straight, tapered, amalgam, pear, flame, cone, egg, cone, bullet, needle, straight crack Cross cutting, conical crack cross cutting, end cross cutting, straight dome, straight dome cross cutting and conical cross cutting. For example, carbide tools (standard) can be used to trim plexiglass, stone and plaster; carbide tools (rough) are used to quickly trim plexiglass, stone and plaster. Carbide tools (ultra-fine) for polishing metal, plexiglass and stone trim; laboratory carbide tools (fine) cross-cutting can be used to trim metal, plexiglass and plaster; quickly cut all metals, Plexiglass and stone; and quick cuts in plexiglass and plaster. During the dressing process, the contact area should be kept dry or rinsed or soaked with lubricant. Some can be washed with air or air. Well known liquid lubricants include water, oils, glycerin, glycols and silicones.

When directly trimming the final stent components, the invention can also utilize computer automation devices, commonly referred to as "digital dentistry", that is, computer automation supplemented by optical, digital devices, CAD/CAM (computer-aided design/computer-aided processing), and Mechanical tools.

In some optimizations, when the strength of the final stent component is greater, chemical pretreatment can be used to reduce (or soften) the hardness of the position L1 (or other Ln position) before using the mechanical method, thereby facilitating Carry out the finishing process. Chemical pretreatment can be solvated or decomposed by solvents or evaporating chemical reactions, such as corrosion and decomposition. The chemical reagents used include basic acidic complexing agents, HF reagents.

In some aspects, the final scaffold component includes metals and oxides; carbides such as silicon carbide; borides; nitrides; silicides, such as salts of aluminosilicates, such as silicates of lithium silicate, aluminum Acid salts, phosphates, fluorates, zirconates and titanates. For example, ceramic materials of porcelain products, white stone containing alumina and glass; polymer materials; materials containing inorganic components adhered by an organic binder, polymer-inorganic composite materials; and combinations of the above.

The final scaffold component material may also be an inorganic-inorganic composite that is adhered by an organic binder, or an organic material, such as a composite material containing various random inorganic/organic materials, to meet material function and aesthetic needs.

The ceramic material of the invention is set to have a glazed or unglazed crystal structure or a partial crystal structure, or a glass made of an inorganic non-metal material. Either the melt is either synchronized or subsequently formed during cooling solidification or during heating. For example, industrial ceramics can be classified into three categories: (1) oxides such as alumina and zirconia; (2) non-oxides such as carbides, borides, nitrides, and silicides; (3) composite materials, such as Particle reinforced composites, oxides and non-oxides combine.

The porcelain used in this product is a ceramic material formed by heating a raw material in a kiln at 1200 ° C - 1,400 ° C. Such raw materials usually include kaolin clay. The toughness, strength and translucency of the porcelain originate from the glass and mineral mullite structure of the sintered body at the high temperature. The glass material used in this product is a fusion inorganic product that does not crystallize to a hard state. Most glass materials are mainly composed of silicon dioxide (SiO ₂ ). The glass materials used in this product can be processed into all amorphous solids, including plastics, resins or other silicon-free amorphous solids.

Since the alumina texture is hard, colorless and readily available, it has been the preferred material for the final abutment component. The average grain size of the ceramic material is preferably no greater than 1.0 micrometer (micrometers).

The final abutment component may comprise one or more preferred metals, primarily including stainless steel, gold, silver, platinum, iron, palladium, rhodium, ruthenium, osmium, iridium, amalgam, alloys thereof, and compounds of any of the metals. For example, the final abutment is composed of an alloy having a metal content of 30%-50% gold, platinum 15-50%, palladium 15%-50%, and 铱0.1%-5.0%. Amalgam is a commonly used filling material. It is a mixture of mercury and at least one other element. For example, dental amalgam includes 43-54% mercury, 20-35% silver, 10% copper, 2% zinc, and tin.

The oxides used in this product include, but are not limited to, Group IIIa, IIIb, IVb element oxides in the periodic table; lanthanum, cerium, lanthanum, cerium and lanthanum element oxides; zirconia, aluminum oxide or aluminum oxide, silicon dioxide, Silicoaluminophosphate polymer material, mullite, lithium oxide, zinc oxide, potassium oxide, phosphorus pentoxide, calcium oxide, cerium oxide, cerium oxide and manganese oxide; colored and odorous metal oxides such as sulphur oxide铽, antimony pentoxide, antimony trioxide, antimony trioxide, antimony trioxide, antimony trioxide, antimony dioxide, manganese dioxide, ferric oxide and vanadium pentoxide; And its compounds.

The polymeric materials used in this product include, but are not limited to, thermoset materials, thermoplastic materials, acrylic polymers, methacrylic polymers, polyesters, methyl methacrylate (PMMA), polymethyl methacrylate, Polyester (butyl methacrylate), polyamide, polyaryl aryl ketone ether (PAEK), polyether ketone (PEKK), polyetheretherketone (PEEK), polyether ketone ketone ether ketone (PEKEKK), ethylene Base grease, epoxy resin, polyimide, polyarylate, polyacrylate, photopolymer, polyolefin, ultra high molecular weight polyethylene, high density polyethylene (HDPE), polyurethane, polypropylene, acrylate, Styrene acrylonitrile copolymer, ABS polymer, polysulfone, polyacetal, polycarbonate, polyurethane dimethacrylate (PUDMA), triethylene glycol dimethacrylate (TEGDMA), polyethylene glycol II Methacrylate (PEGDMA), urethane (UDMA), 2-hydroxyethyl methacrylate polymer (HEMA), ethylene glycol dimethacrylate (EGDMA), diethylene glycol dimethacrylate (DEGDMA), triethylene glycol dimethacrylate (TEGDMA), tetrahydrofurftiryl, methacrylate, trimethylol propyl Triacrylate (TMPTMA), diphenyl sulfone dimethacrylate, polymerized tetramethyleneglycol dimethacrylate (PTMGDMA), hexanediol dimethacrylate (1,6HDDMA), polycarbonate dimethacrylate (PCDMA) , polyphenylene sulfide, urethane mixture (UDMA), polycarbonate dimethacrylate (PCDMA) and triethylene glycol dimethacrylate (TEGDMA); bisphenol A propyl methyl acrylate addition (glycidyl methacrylate) and its acrylic acid counterpart; 2,2,3 trimethylhexane diisocyanate containing hydroxyalkylacrylic acid species, such as methyl hydroxyethyl methacrylate and hydroxypropyl Methyl methacrylate; and copolymers thereof and compounds thereof.

In various embodiments of the product, the polymeric material comprises one or more monomers or oligomers selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl isopropyl methacrylate. , methyl 2-hydroxyethyl methacrylate, methyl 3-hydroxypropyl methacrylate, 2-hydroxy-1,3-dimethacryloxypropane, n-butyl methacrylate, isobutyl methacrylate, butoxyethyl isobutylene Methyl ester, methyl hydroxypropyl methacrylate, methyl tetrahydrofurfuryl methacrylate, methyl propyl methacrylate, methyl 2-methoxyethyl methacrylate, methyl 2-ethylhexyl methacrylate , methyl benzyl methacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, diethylene glycol dimethyl Acrylic acid, triethylene glycol trimethacrylate, butylene glycol dimethacrylate, neopentyl glycol dimethacrylate, 1.4-butylene glycol dimethacrylate, 1,6-hexanediol II Methacrylic acid, trimethylolpropane trimethacrylate, trimethylolpropane acid methyl ester Trimethyl ethane [acid methyl ester, methyl trimethylol methacrylate, methyl pentaerythritol, pentaerythritol tetramethacrylate, oxytetracycline ethylene glycol dimethacrylate, 2,2-bis (a Propylene phenyl)propane, 2,2-bis(4-(2-hydroxy-3-methylpropenylphenyl)phenyl)propane, 2,2-bis(4-methacryloxydiethoxyphenyl)propane, 2,2-double (4-methacryloxypoiyethoxyph-alkenyl)propane and acrylate, and methyl methacrylate containing a urethane bond in the molecule, such as bis-2-methacryloyloxy-2,2,4-trimethyl Hexamethylene dicarbonate, 1,3,5-trishydroxymethylaminomethane (1,3-bis(methacryloyloxy)-1-2-propoxy carbon ylaminohexane)-1,3- 5--(1H,3H,5H)triazabenzene-2,4,6-triazine, 2,2'-bis(4-propane Synthesis of urethane oligomers, 2-oxoacetone, hexamethylene diisocyanate and methyl 2-hydroxyethyl methacrylate, and 1,3-butanediol to synthesize urethane oligomers, hexamethylene diisocyanate and 2-Hydroxyethyl 2-methacrylate.

In the production of polymeric materials, compounds commonly used in the art such as polymerization initiators, polymerization accelerators, ultraviolet absorbers, and antioxidants and other additives can be used. The polymeric material is curable visible light, self-curing, dual curing and vacuum, heat and pressure correctable components as well as any compound. It can be polymerized in whole or in part by image, chemical or thermal retention under controlled pressure or atmospheric pressure. The curable visible light component includes common polymerization initiators, polymerization accelerators, ultraviolet absorbers, fluorescent whitening agents, and the like. Preferred photocuring initiators include camphorquinone (CQ) and trimethylbenzoylphosphine oxide (TPO). The heat curing component is generally used as a filling component, including a thermal curing initiator such as benzoyl peroxide, 1,1 '-cyclohexanecarbo-nitrile, or other radical inducing agent.

In the self-curing process, a polymerization accelerator is included in the polymerizable monomer component. The polymerization accelerators used include various organic tertiary amines, usually aromatic tertiary amines such as dimethylaniline, dihydroxyethyl p-toluidine and the like.

The heat curing inducer may include benzoyl peroxide, 1,1'-azobiscarbo-nitrile, or other free radical inducing agent. Particularly suitable free radical inducing agents are lauroyl peroxide, tributyl hydroperoxide, AIBN and, in particular, benzoyl peroxide or 1,1 '-azobiscarbo-nitrile.

Various optional ingredients can be used with polymeric materials such as pigments; opaque on external surfaces; fibers, powders and particulate matter; fiber reinforcement, such as fiberglass reinforcement, bariumborosilicate glass, glass fiber cured composites (FRC) such as light Polymerized glass fiber curing conforms to materials; fillers such as silica, silicate glass, quartz, barium silicate, barium sulfate, barium molybdate, molybdate, acrylate, decyloxy fluorene, (Ba2Y ( OR)X), barium silicate, barium borosilicate, barium borosilicate, silicate, lithium silicate, amorphous silicon oxide, ammoniated or deaminated calcium phosphate and alumina, zirconia, tin oxide , cerium oxide, cerium oxide, titanium dioxide, carbon, graphite, aromatic polyamide, polyaramid, polylipid and polyamide; and compounds thereof; inorganic fillers containing glass powder, such as silica, bismuth glass, aluminum glass, Potassium glass, fluoroaluminum silicate glass, synthetic zeolite, calcium phosphate, feldspar, fumed silica, aluminum silicate, calcium silicate, magnesium carbonate and quartz, wherein the inorganic filler can be selected by gamma methacryl Acyloxypropyltrimethoxysilane, vinyltrichlorosilane, vinyltrichlorosilane, vinyltrimethoxysilane, vinyltriacetoxysilane and vinyl(methoxyethoxy)silane The compound is subjected to surface treatment.

The strengthening component can be selected from the group consisting of carbon, aluminum oxide, zirconium dioxide, antimony trioxide, antimony trioxide - stabilized zirconium dioxide, magnesium oxide - stabilized zirconium dioxide, E Glass, sulphur glass, bioactive glass, bioactive glassware, calcium phosphate, hydroxyapatite, titanium dioxide, titanium, titanium alloy and stainless steel. The reinforced component geometry includes fibers, particles, fibers of various diameters, and fibers fused to the particles at the surface of the fibers.

For example, the final abutment component of this product includes 55% PEKK as a binding material, 35% E glass fiber as a reinforcing material, and 10% titanium dioxide particles as a colorant.

For another example, the final abutment component of the product includes zinc oxide, glass fibers containing cerium oxide, zirconium oxide, bisphenol A-epoxy matrix and E glass fiber.

The mating fillers are covalently attachable matrices or coupling agents which are covalently attachable. Compatible filler materials include, but are not limited to, elements commonly used in the art, such as silica, silicate glass, quartz, strontium silicate, strontium silicate, barium borosilicate, barium borosilicate, borosilicate Salt, lithium silicate, amorphous silica, ammoniated or deaminated calcium phosphate and alumina, zirconia, tin oxide and titanium dioxide.

Polymeric reinforcing fiber elements include glass, carbon, graphite, aromatic polyamides, or other fibers commonly used in the arts. Dimensions, such as multi-fat, polyamide, and other natural synthetic materials compatible with polymeric matrices. The fibers can be further treated, such as silanized, to strengthen the adhesion of the fibers to the polymeric matrix. The fibers can be selected from long continuous fibers. Suitable coupling agents include silane compounds such as silicone agents. Commonly used silane agents include gamma-methacryloxypropyltrimethylsilane, gamma-aminopropyltriethoxysilane, vinyltrichlorosilane, and styrylamine functional silane.

In the chosen protocol, the corolla is produced directly from the dentist's office, not the laboratory, based on the shape of the final abutment component that is completely repaired or customized. However, it should be understood that the corolla can be made by any manual and digital method, which is within the scope of this product.

Because the oral environment, such as the caries and the shape of the mouth, varies from patient to patient, the dentures produced vary from patient to patient. Accordingly, dentures are designed and made according to the antagonist or the relationship of the adjacent or occlusal teeth. Complete dentures are precisely sized in tens of micron sequences.

Existing products can be digitally automated, such as CAD/CAM (computer-aided design and manufacturing in dental offices and dental laboratories) systems in which dentures such as corollas are designed using a computer and milled. For example, the CAD/CAM system of the German company Siemens, which is commercialized by the dental office, acts as a Cerec system (for example

with

), preferably used in this product. The CAD/CAM system is used for the tooth forming process based on the abutment or the mouth, if necessary, to read the shape of the adjacent tooth or antagonist; to design the required denture according to the shape of the tooth read by the computer; the plug material such as resin curing The material, the ceramic sintered material, and the metal material is placed in an automatic grinding process, and the denture is made according to the requirements of the grinding process. The CAD/CAM system produces high quality dentures and makes dentures that are highly suitable for oral shape.

The corolla material is composed of china clay, metal, metal alloy, ceramic material, polymeric material and its compounds. In the prior art preferred embodiment, the corolla ceramic material is a transparent polycrystalline material because the natural dental enamel is highly transparent, however, the dentin is less transparent. The polycrystalline material has a variety of crystals in any orientation that are joined at the grain boundaries. In particular, ceramic materials are non-porous and maintain a high degree of optical transparency. Transparency is a characteristic of a sample that can propagate light without the need to obtain a clear image of the material other than the sample, and is irrelevant. A transparent material is one of its advantages, because in the case of a corolla, it is formed by a highly fused material and can assume the color of the adjacent lower teeth. It produces more aesthetics than most opaque materials. In some cases, the dentist needs to make a color-matched denture, such as a corolla, whose color matches the shape of the dentition around the denture. In one of the schemes, the corolla ceramic material is alpha alumina. Alumina is particularly desirable because its optical transmittance is constant in the visible spectrum, so it does not need to change the color of the light passing through. This product uses ceramic color spectrum (mostly A-D shape, such as A1-5, B1-5, C1-5) to determine the color of the corolla.

In the above step (vii), the corolla can be attached to the final abutment component using various common adhesives. Commonly used materials include compounds, glass ionomers, resin cements, zinc phosphate, zinc polycarboxylates, copolymers and resin repair glass ionomer cements.

In this embodiment, the present invention provides a simple procedure for selecting a final but still modified abutment (matched from the commercial version of Zuga Medical, Cleveland, Ohio) that matches the color of the patient's other teeth; implanted Zuga Bridge abutment and use screws to fix; modify (or shape) the bridge abutment to match the occlusal joint (ie, complete customization); the impression of the abutment is generated and delivered to the laboratory; the laboratory technician makes the crown, then Send it to the dentist for implant installation. In another embodiment, the present invention provides for the production of Cerac crowns by selecting a final but still modified abutment that matches the color of the patient's other teeth (commercial from Zuga Medical, Inc., Cleveland, Ohio) Version); implanting the Zuga bridge abutment and fixing with screws; modifying (or shaping) the abutment teeth to match the occlusal connection (ie, complete customization); using a Cerac machine to make crowns on the fully corrected abutment teeth; The dentist installed the crown on the abutment. The advantage of this operation is that the Cerac machine can be directly connected to make the crown, even if no impression is generated.

The invention provides a final but correctable abutment system including methods, abutments, accessories and tools; and the system will assist the dentist in implanting the crown onto the implant placed using known skills. The technology has the following advantages, such as reducing the pressure on the abutment of the dental bridge; eliminating the abutment angle of the bridge; the dentist can directly shape or modify the final abutment even if the final abutment is not removed from the mouth; the beautiful gum line; the patient Colors and shapes can be selected directly by yourself; implants and crowns cost less.

A typical case will be described as a priority reference case. Obviously, due to the different reading and understanding of the detailed description of the case, corresponding modifications and changes will be made. It is intended that the typical cases be construed as including all such modifications and changes as the

The above embodiments are not exhaustive of the specific embodiments, and other embodiments may be made. The above embodiments are intended to illustrate the present invention, and do not limit the scope of the present invention. All applications which are simply changed by the present invention fall within the scope of the present invention. Within the scope of protection of the invention.

Claims

A dental restoration method, comprising the steps of:

(i) implanting the final abutment and implant member, consisting of a sub-crown member, into the tibia, where the final abutment includes a repairable portion made of a non-titanium material and modified by a repairable portion. Customize;

(ii) directly measuring the shortest distance X1, which is located between L1, on the surface of the repairable part mentioned above and on the surface of the repairable part of the oral cavity;

(iii) comparing X1 with a predetermined value Y1, and Y1>0;

(iv) If X1 < Y1, the incision can be directly modified, or the modifiable portion of the mouth located in L1 can be modified, and the modifiable portion can be removed from the oral cavity to increase the shortest distance X1 until X1 ≥ Y1;

(v) optionally repeating steps (i) and (iv), measuring the respective shortest distance Xn and the corresponding predetermined value Yn at one or more points of the surface of the modifiable portion until Xn > Yn, where Yn > 0 , n is an integer, and n ≥ 2, so that the final bridge abutment can be completely customized;

(vi) making a crown based on the shape of the fully customized final abutment;

(vii) The crown is implanted on a fully customized final abutment to complete the dental restoration.
The dental prosthetic method according to claim 1, wherein the non-titanium material mentioned in the method is selected from the group consisting of stainless steel, gold, silver, platinum, iron, palladium, ruthenium, osmium, iridium, osmium; Carbides such as silicon carbide, borides, nitrides, silicides; salts such as aluminosilicates, silicates such as lithium silicates, aluminates, phosphates, fluorates, zirconates and titanates a ceramic material such as porcelain, white stone containing alumina, and glass; a polymer material; any composite such as an inorganic-inorganic composite material composed of an organic binder and a polymer-inorganic composite material, and any combination thereof Complex.
The dental prosthetic method according to claim 1, wherein the non-titanium material mentioned in the method is selected from the group consisting of zirconium, polyetheretherketone (PEEK) and alumina.
The dental prosthetic method according to claim 1, wherein the final abutment tooth mentioned in the method comprises a modifiable portion and an unmodifiable portion.
The dental prosthetic method according to claim 1, wherein the intra-oral final abutment teeth mentioned in the method are selected from the group consisting of periodontal tissues, gingival tissues, one tooth, and a repairable portion.
The dental prosthetic method according to claim 1, wherein the final abutment tooth mentioned in the method has a hardness of H ≥ 10 (Knoop hardness value) or equivalent under the ASTM D-1474 standard. .
The dental prosthetic method according to claim 1, wherein the dental implant component mentioned in the method is characterized by rigidity, compatibility, and tonicity.
The dental prosthetic method according to claim 1, wherein the dental implant component mentioned in the method comprises a titanium material, titanium dioxide (TiO2), a titanium alloy such as a tetra6v4 alloy, stainless steel, zirconium, cobalt. A chrome molybdenum alloy, a polymer material, and a material made of any combination of the above.
The dental prosthetic method according to claim 1, wherein the final abutment tooth mentioned in the method is pre-generated and comprises a rigid and biocompatible dentin-like material .
The dental prosthetic method according to claim 1, wherein the final abutment tooth mentioned in the method comprises a material selected from the group consisting of a metal material; an oxide; a carbide such as silicon carbide, boride , nitride, silicon Salts such as aluminosilicates, silicates such as lithium silicates, aluminates, phosphates, fluorates, zirconates and titanates; ceramic materials such as porcelain, white stones containing alumina, and glass Polymer material; any composite such as an inorganic-inorganic composite material composed of an organic binder and a polymer-inorganic composite material, and a composite of any combination thereof.
The dental restoration method according to claim 10, wherein the metal mentioned in the method is selected from the group consisting of stainless steel, gold, silver, platinum, iron, palladium, ruthenium, osmium, iridium, osmium, amalgam, alloy, And any of the above compositions.
The dental prosthetic method according to claim 10, wherein the oxide mentioned in the method is selected from the group consisting of oxide elements of IIIA, IIIB, and IVB in the periodic table; Hf, Y, Ce, Sc, and Er Oxide; zirconia, aluminum oxide or aluminum oxide, silicon dioxide, silicon oxynitride, mullite, lithium oxide, zinc oxide, potassium oxide, phosphorus pentoxide, calcium oxide, cerium oxide, cerium oxide and oxidation Magnesium; dyed and fluorescent metal oxides such as cerium oxide, cerium oxide, cerium oxide, cerium oxide, cerium oxide, iron oxide, manganese dioxide, cerium oxide and vanadium pentoxide; and combinations thereof.
The dental prosthetic method according to claim 10, wherein the polymer material mentioned in the method is selected from the group consisting of a thermosetting material, a thermoplastic material, an acrylic polymer, a methacrylic polymer, and a polymethyl methacrylate. (PMMA), poly(ethyl methacrylate), poly(butyl methacrylate), polyamide, polyester, polyaryl ether ketone (PAEK), polyether ketone ketone (PEKK), polyether ether ketone ( PEEK), polyether ketone ether ketone ketone (PEKEKK), vinyl ester, epoxy resin, polyimide, polyarylate, polyacrylate, photopolymer, polyolefin, ultra high molecular weight polyethylene, high density poly Ethylene (HDPE), polyurethane, polypropylene, polystyrene, acrylated polyester, styrene-acrylonitrile copolymer, acrylonitrile-butadiene-styrene polymer, polysulfone, polycarbonate, polyoxymethylene, poly Dimethacrylate (PUDMA), triethylene glycol dimethacrylate (TEGDMA), ethylene glycol dimethacrylate (PEGDMA), urethane dimethacrylate (UDMA), methacrylic acid Polymer of hydroxyethyl ester, ethylene glycol dimethacrylate (EGDMA), diethylene glycol dimethyl propyl Acid ester (DEGDMA), triethylene glycol dimethacrylate (TEGDMA), methyl acrylate methyl ester, trimethylolpropane (TMPTMA), diphenyl sulfone dimethacrylate, polybutylene glycol Acrylate (PTMGDMA), hexanediol dimethacrylate (1,6HDDMA), polycarbonate diol dimethacrylate (PCDMA), polyphenylene sulfide; methacrylate urethane mixture (UDMA) ), polycarbonate diol dimethacrylate (PCDMA) and triethylene glycol dimethacrylate (TEGDMA); bisphenol A (bis-GMA) diglycidyl methacrylate adduct and acrylic acid a counterpart; a composition of 2,2,3-trimethylpentane diisocyanate with a hydroxyalkylacrylic acid species such as hydroxyethyl methacrylate and hydroxypropyl acrylate; and any combination of the above.
The dental prosthetic method according to claim 10, wherein the polymer material mentioned in the method is made of one or more monomers or oligomers selected from the group consisting of methyl groups. Methyl acrylate, ethyl methacrylate, isopropyl methacrylate, acrylic acid, hydroxypropyl methacrylate, 2-hydroxy-1,3-dimethacryloxypropane, butyl methacrylate, isobutyl methacrylate, butyl Oxyethyl methacrylate, hydroxypropyl methacrylate, decyl methacrylate, glycidyl methacrylate, 2-methoxyethyl methacrylate, 2-ethylhexyl methacrylate Benzyl methacrylate, ethylene glycol dimethacrylate, ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, ethylene glycol acrylate, butanediol dimethacrylate, Methyl methacrylate, 1,3-butylene glycol dimethacrylate, 1,4-butanediol dimethacrylate, 1,6-hexanediol dimethacrylate, trimethylolpropane , propylene glycol acrylate, dimethylmethane pentaerythritol acrylate, acrylate, pentaerythritol Alcohol tetramethyl, ethylene glycol dimethacrylate, 2,2-bispropane, 2,2-bispropane (4-(2-hydroxy-3-methacryloxypropoxy)phenyl), 2,2-dimethane ( 4-methacryloxydiethoxyphenyl), 2,2-dipropane and its esters (4-methacryloxypolyethoxyph-enyl), and the molecule contains a methacrylic acid urethane bond, such as di-2-methacryloxyethyl-2, 2,4-trimethylhexamethylene dicarbamate, 1,3,5-tri (1 ,3-bis(methacryloyloxy)-1-2-propoxycarbonylaminohexane)-5-(1H, 3H, 5h) triazine 2,4,6-trion, urethane oligomer synthesis 2 , 2'-4-methanecyclohexyl, 2-oxepanone, hexamethylene diisocyanate, hydroxyethyl methacrylate, 1,3-butanediol polyurethane prepolymer, hexamethylene diisocyanate, A synthetic urethane oligomer of hydroxyethyl methacrylate.
The dental restoration method according to claim 10, wherein the polymer material mentioned in the method further comprises a material selected from the group consisting of a pigment; an opaque material; fibers, powders and particulate matter; and a fiber reinforcement material such as glass fiber reinforcement. , bariumborosilicate glass materials, glass fiber reinforced composites (FRC) such as photopolymerized glass fiber composites; coatings such as silica, silicate glass, quartz, silicate, barium sulfate, barium molybdate, Methacrylic acid, alkoxy (Ba2Y (or) X), barium silicate, barium borosilicate, boron, borosilicate, lithium silicate, amorphous silica, ammoniated and deaminated phosphoric acid Any combination of calcium and alumina, zirconia, tin oxide, cerium oxide, cerium oxide, titanium dioxide, carbon, graphite, aramid, polyethylene, polyester, polyamide; glass inorganic filler containing powder, such as dioxide Silicon, yttria glass, alumina glass, potassium glass and fluoroaluminosilicate glass, synthetic zeolite, calcium phosphate, potassium feldspar, fumed silica, aluminosilicate, calcium silicate, magnesium carbonate and quartz ,its The medium inorganic filler will be composed of chlorovinyltriethoxysilane, vinyltrichlorosilane, vinyltriethoxysilane, vinyltrimethoxysilane, vinyltriacetoxysilane, and vinyltrimethylsilylsilane. (Methoxyethoxy) and any of the combination compositions described above are surface treated.
The dental restoration method according to claim 1, wherein the crown mentioned in the method is rigid and translucent.
The dental prosthetic method according to claim 1, wherein one of the materials contained in the crown mentioned in the method is selected from the group consisting of porcelain, metal, metal alloy, ceramic material, polymer material, and any combination thereof. The composition.
The dental prosthetic method according to claim 1, wherein the modification of the final abutment tooth mentioned in the method is controlled by mechanical operation, chemical method, optical method such as laser cutting and ultraviolet degradation, heat treatment such as heating And any of the above methods are performed in cooperation with each other.
The dental prosthetic method according to claim 1, wherein the modification of the final abutment tooth mentioned in the method is selected from a drill bit or a rotary boring; a diamond; a multifunctional diamond dental drill; and a tungsten carbide such as tungsten carbide Dental alloy drill bits made of steel; dental sintered diamond drill bits; cone honing; dental diamond discs; cemented carbide tools; parallel milling cutters; dental steel drills; and tools made of any combination of the above.
The dental prosthetic method according to claim 19, wherein the method mentions that before the tool is used, the final abutment teeth are pretreated to relieve the pressure at L1; and the pretreatment can be selected as follows One, such as steam therapy, dissolution, chemical treatment such as etching and degradation using reagents such as HF, acid and formulation.