CN113367819A - Artificial tooth planting body - Google Patents
Artificial tooth planting body Download PDFInfo
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- CN113367819A CN113367819A CN202110625140.8A CN202110625140A CN113367819A CN 113367819 A CN113367819 A CN 113367819A CN 202110625140 A CN202110625140 A CN 202110625140A CN 113367819 A CN113367819 A CN 113367819A
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- implant
- neck
- taper hole
- wing plate
- outer diameter
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- 239000007943 implant Substances 0.000 claims abstract description 207
- 238000002513 implantation Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000004053 dental implant Substances 0.000 claims description 29
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 abstract description 49
- 230000000694 effects Effects 0.000 abstract description 12
- 206010061218 Inflammation Diseases 0.000 abstract description 7
- 230000004054 inflammatory process Effects 0.000 abstract description 7
- 210000004872 soft tissue Anatomy 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000006386 Bone Resorption Diseases 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 230000024279 bone resorption Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 206010041290 Soft tissue inflammation Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 206010044048 Tooth missing Diseases 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 230000011164 ossification Effects 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0037—Details of the shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
Abstract
The invention provides an artificial tooth implant, which comprises an implant body and a base station, wherein the implant body is provided with a central taper hole arranged along the axial direction of the implant body, a plurality of layers of wing plates arranged at intervals along the axial direction are formed on the circumferential outer side surface of the implant body, each layer of wing plate surrounds the circumferential direction of the implant body for one circle, and a space between two adjacent layers of wing plates forms an occlusion groove; the abutment is solid, and its planting body connecting portion insert and establish in central taper hole and with central taper hole interference fit. The artificial tooth implant is convenient to implant, the initial stability is not required to be ensured, the implantation depth is reduced, the requirement on bone mass is low, and the clinical application range can be improved; the abutment is inserted with the implant and is in interference fit, so long as the upper abutment is inserted into the lower implant and knocked in place, the upper part and the lower part are locked by the taper, the operation is very simple, the use is tighter and tighter, the static connection effect is achieved, the connection is reliable, cuff soft tissue is kept healthy and stable, inflammation is avoided, and the service life of the artificial tooth implant is prolonged.
Description
Technical Field
The invention belongs to the technical field of oral medicine, and particularly relates to an improved structure of an artificial dental implant.
Background
The implant refers to a tooth missing restoration method for supporting and retaining an upper dental restoration based on a lower structure implanted into bone tissue. It adopts artificial material (such as metal and ceramic, etc.) to make artificial dental implant (generally similar to tooth root form), and adopts the operation method to implant into tissue (generally upper and lower jaws) and obtain firm retention support of bone tissue, and utilizes special device and mode to connect and support dental prosthesis of upper portion. The artificial dental implant can obtain the repairing effect which is very similar to the function, the structure and the beautiful effect of natural teeth, and becomes the first-choice repairing mode of more and more patients with tooth deficiency.
Most of the existing dental implants are mainly divided into two parts, namely an artificial dental implant implanted into a bone and a dental crown (namely a dental prosthesis) visible in the mouth. The implant generally comprises an implant neck and an implant body which are axially connected into a whole, an abutment connecting hole which extends along the axial direction of the implant body is formed in the implant body, the abutment connecting hole is a blind hole, and one end of the abutment connecting hole penetrates through the end face of the implant neck; the abutment generally includes a crown connection part at one end thereof for connecting a crown and an implant connection part at the other end for connecting an implant.
In the prior art, a screw thread which extends spirally along the axial direction of an implant body is usually formed on the implant body, and the implant body is implanted into an alveolar bone of a jaw bone by screwing the implant body into a prepared alveolar bone implant socket by adopting a specific tool; the abutment is generally hollow, an internal thread is formed on the inner wall of the abutment, and the implant connecting portion of the abutment is inserted into the abutment connecting hole of the implant and then a central screw is screwed into the abutment, thereby connecting the abutment and the implant into a whole.
The prior art has the following defects and shortcomings: 1. the implant is screwed into the alveolar bone planting nest through the spiral structure, and the initial stability of the implant is required to be ensured, so that the required screwing depth is large, the thread pitch is wide, the requirement on the alveolar bone quantity is high, the feasibility of the artificial dental implant is low for a tooth-deficient patient with small bone thickness, the initial stability of implant implantation is difficult to ensure even if the artificial dental implant is feasible, and the final fixation of the artificial dental implant is difficult to ensure;
2. the implant screw thread has large screwing depth and wide thread pitch, which causes poor blood circulation;
3. the screw thread is screwed into the cut bone, so that the compression and absorption of the bone are easily caused;
4. the hollow abutment is fixed on the implant through a central screw, the risk of connection looseness of the implant caused by screw looseness exists for countless times of strong biting force every day, once the connection looseness of the abutment and the implant occurs, and the top end of the implant is lower than an alveolar bone plane, an inflammation reaction exists on a bone interface, bone absorption is generated, and in order to avoid the problem as far as possible, the top end of the implant needs to be ensured to be level with the bone plane when the implant is implanted in the prior art, sufficient soft tissue is not easily formed above the implant, the stability of cuffs is not facilitated, and the cuffs are unstable and are easy to generate inflammation;
5. the hollow abutment is fixed on the implant through the central screw, and in order to ensure firmness, the abutment has larger diameter and length and larger risk of breaking.
Disclosure of Invention
The invention provides an artificial dental implant which has low requirement on bone mass during implantation, can improve the clinical application range, and has the advantages of reliable connection between an abutment and the implant, difficult looseness and difficult bone absorption.
In order to solve the technical problems, the invention adopts the technical scheme that the artificial dental implant comprises:
the implant comprises an implant neck and an implant body which are axially arranged and connected into a whole, the implant is provided with a central taper hole axially arranged, the central taper hole is a blind hole with one end penetrating through the end face of the implant neck and the other end extending into the implant body, and the inner diameter of the central taper hole is gradually reduced from the orifice of the central taper hole to the bottom of the hole; a plurality of layers of wing plates are formed on the circumferential outer side surface of the implant body at intervals along the axial direction, each layer of wing plate surrounds the implant body for a circle, and a space between two adjacent layers of wing plates forms an occlusion groove;
the abutment is of a solid structure and comprises a dental crown connecting part and an implant connecting part which are axially arranged and integrally connected, the implant connecting part has a taper matched with the central taper hole, and the implant connecting part is inserted in the central taper hole and is in interference fit with the central taper hole.
The multiple layers of wing plates are coaxially arranged, the outer diameter of the wing plate closest to the neck of the implant is not larger than the outer diameter of the neck of the implant, and the outer diameter of the wing plate far away from the neck of the implant in the two adjacent layers of wing plates is not larger than the outer diameter of the wing plate in the other layer.
The multiple layers of wing plates are coaxially arranged, the outer diameter of the wing plate closest to the neck of the implant is not larger than the outer diameter of the neck of the implant, and the outer diameter of the wing plate far away from the neck of the implant in the two adjacent layers of wing plates is smaller than the outer diameter of the wing plate in the other layer.
The wing plate at the root of the implant body has a guiding taper that facilitates implantation of the implant.
The longitudinal section of the occlusion groove is arc-shaped.
A groove is formed between the wing plate closest to the neck of the implant and the neck of the implant, a plurality of baffles are distributed in the groove along the circumferential direction, and the groove is divided into a plurality of parts along the circumferential direction by the baffles.
The anti-rotation planting device is characterized in that a plurality of anti-rotation grooves are formed in the root of the circumferential outer side face of the planting body, the anti-rotation grooves extend along the length direction of the planting body, the anti-rotation grooves are circumferentially distributed and divide at least one layer of the root of the circumferential outer side face of the planting body into a plurality of parts along the circumferential direction.
The implant connecting part is matched with the central taper hole in a Morse taper manner.
The circumference lateral surface of planting body neck is the toper, just the external diameter of planting body neck is by its terminal surface to planting body place side crescent.
The taper range of the circumferential outer side surface of the implant neck is 20-65 degrees.
Compared with the prior art, the invention has the following advantages and positive effects:
1. the multi-layer wing plates are formed on the circumferential outer side surface of the implant body at intervals along the axial direction, each layer of wing plate surrounds the circumference of the implant body for one circle, and the space between every two adjacent layers of wing plates forms an occlusion groove, so that the implant can be directly pushed by hand or tapped to an implant pit in the initial stage of implantation, and the occlusion groove and a bone grafting material are occluded and combined into a whole in the later stage;
2. the problem that the thread spirally cuts alveolar bone in the existing implant spiral screwing is avoided, and the possibility that the bone is pressed and absorbed is greatly reduced;
3. the adjacent wing plates and the occlusion groove are mutually isolated, compared with the existing integral screw thread which extends spirally, the screw thread has the bacteria sealing effect, the blood circulation effect of bone tissues around the implant is improved, and each layer of wing plate independently surrounds the implant body for one circle, so that the screw thread can bear vertical load to the maximum extent during occlusion; compared with a screw type implant with the same size, the surface area of the screw type implant is increased by at least 30 percent, mature Harvard bone can be formed between adjacent wing plates secondarily, the combination efficiency of the implant and a bone grafting material is improved, and the bone healing time is shortened;
4. the implant connecting part of the solid abutment is inserted into the central taper hole of the implant and is in interference fit with the central taper hole of the implant, so long as the abutment at the upper part is inserted into the implant at the lower part and knocked to place, the upper part and the lower part are locked by the taper, the operation is extremely simple, the more tight the abutment is used, the static connection effect is achieved, the connection is reliable and is not easy to loosen, even if the implant is placed in place 1-2mm below a bone and is connected with the abutment, the bone interface can not generate inflammation and bone absorption, the depth of the implant implanted below the bone plane can become one part of a mucous membrane cuff, so that the soft tissue cuff has enough thickness, the cuff soft tissue can be kept healthy and stable, no inflammation is generated, and the service life of the artificial tooth implant is prolonged;
6. the abutment is solid construction, compares current hollow abutment intensity height, and the risk of breaking is low, and the implant height is corresponding to be reduced, and the risk of breaking is also low to further be favorable to prolonging artificial tooth implant life-span.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of an artificial dental implant according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is a perspective view of an implant of an artificial dental implant according to an embodiment of the present invention;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a sectional view taken along line B-B of FIG. 5;
FIG. 7 is a perspective view of an abutment of an artificial dental implant according to an embodiment of the present invention;
FIG. 8 is a front view of FIG. 7;
fig. 9 is a cross-sectional view taken along line C-C of fig. 8.
Reference numerals: 100. an implant; 110. an implant neck; 111. a circumferential outer side surface; 120. An implant body; 121. a wing plate; 122. engaging the groove; 123. an anti-rotation groove; 130. a central taper hole; 140. a trench; 150. a baffle plate; 200. a base station; 210. a crown connection part; 220. an implant connecting portion.
Detailed Description
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 to 3, the artificial dental implant of the present embodiment includes an implant 100 and an abutment 200, and certainly includes a crown, and since the invention application does not relate to structural improvement of the crown, details of the crown are not described, and the crown is omitted in fig. 1 to 3.
As shown in fig. 1 to 3 in conjunction with fig. 4 to 6, the implant 100 includes an implant neck 110 and an implant body 120, which are axially disposed and connected together, and the implant 100 further has a central tapered hole 130 axially disposed along the central tapered hole, the central tapered hole 130 is a blind hole, one end of which penetrates through the end surface of the implant neck 110 and the other end of which extends into the implant body 120, and the inner diameter of the central tapered hole 130 is gradually reduced from the opening thereof to the bottom of the hole (i.e. from the penetrating end surface of the implant neck 110 to the side of the implant body 120); the circumferential outer side surface of the implant body 120 is formed with a plurality of layers of wing plates 121 arranged along the axial direction at intervals, each layer of wing plate 121 surrounds the implant body 120 for one circle, and the space between two adjacent layers of wing plates 121 forms an occlusion groove 122.
As shown in fig. 1 to 3, in conjunction with fig. 7 to 9, the abutment 200 is a solid shaft, and includes a crown connection portion 210 and an implant connection portion 220 that are disposed along an axial direction thereof and integrally connected, the implant connection portion 220 has a taper matched with the central tapered hole 130, that is, the implant connection portion 220 is a tapered column, and the implant connection portion 220 is inserted into the central tapered hole 130 and is in interference fit with the central tapered hole 130.
Specifically, the implant 100 and the abutment 200 are both made of metal, specifically titanium alloy, and have high mechanical strength, and the surfaces thereof are subjected to RBM (hydroxyapatite surface activity roughening) treatment, and the implant 100 and the abutment 200 have the same axis, and the implant neck 110, the implant body 120 and the central taper hole 130 have the same axis. The cross-section of the central taper hole 130 is circular, and the cross-section of the implant connecting part 220 is circular, so that the abutment 200 can be rotated 360 ° to select an optimal position to satisfy the characteristics of the gingival margin morphology required for gingival healing and aesthetic repair; the main body portion of the implant body 120 has a cylindrical outer profile, which can reduce bone damage.
The artificial dental implant is characterized in that a plurality of layers of wing plates 121 are axially arranged at intervals on the circumferential outer side surface of an implant body 120, and an occlusion groove 122 is formed in the space between every two adjacent layers of wing plates 121, so that the implant 100 can be directly pushed by hand or tapped into an implant pit in the initial stage of implantation, and is occluded and combined with bone grafting materials into a whole through the occlusion groove 122 in the later stage; the implant 100 does not need to be screwed in for implantation, so that the problem of thread spiral cutting of alveolar bone is avoided, and the possibility of compression and absorption of bone is greatly reduced.
The adjacent wing plates 121 are isolated by the occlusion grooves 122, the adjacent occlusion grooves 122 are isolated by the wing plates 121, the bacteria sealing effect can be achieved, the blood circulation effect of bone tissues around the implant can be improved, and the wing plates 122 of each layer independently surround the implant body 120 for one circle, so that the vertical load can be borne to the maximum extent during occlusion; compared with a screw type implant with the same size, the surface area of the screw type implant is increased by at least 30%, mature Harvard bone can be formed between adjacent wing plates secondarily, the combination efficiency of the implant and a bone grafting material is improved, and the bone healing time is shortened.
The implant connecting part 210 of the base 200 is inserted into the central taper hole 130 of the implant 100 and is in interference fit with the central taper hole, when the base 200 is installed, only the upper base 200 is inserted into the lower implant 100 and then is knocked to be in place, the base 200 and the implant 100 are locked by taper fit, the operation is extremely simple, the base 200 and the implant 100 are more tightly engaged, the effect of motionless connection, namely static connection is achieved, the connection is reliable and not easy to loosen, and even if the implant 100 is in place 1-2mm below the bone plane and is connected with the base 200, the bone interface does not generate inflammation and bone absorption; the depth of the implant 100 implanted below the bone plane becomes a part of the cuff of the mucosa, so that the soft tissue cuff has enough thickness, the cuff soft tissue can be kept healthy and stable, inflammation is not generated, and the service life of the artificial dental implant is prolonged; meanwhile, the abutment 200 is of a solid structure, compared with the existing hollow abutment, the abutment is high in strength and low in breaking risk, and meanwhile, compared with the prior art, the height of the implant is correspondingly reduced, so that the breaking risk is also reduced, and the service life of the artificial dental implant is further prolonged. The self-locking taper design between the implant connecting part 210 of the abutment 200 and the central taper hole 130 of the implant 100 forms a large enough friction area between the surface of the implant connecting part 210 and the central taper hole 130, so that a large enough friction retaining force is generated between the abutment 200 and the implant 100, and the cold welding connection mode further forms a bacteria sealing effect between the implant 100 and the abutment 200.
Preferably, the implant connecting portion 220 and the central tapered hole 130 are matched with each other in a morse taper manner, if the angle α of the taper angle of the central tapered hole 130 is 1.5 °, the precise positioning of the interference fit is realized, and the disassembly is convenient, the implant connecting portion 220 and the central tapered hole 130 are in an interference fit with the matched morse taper, so that a bacterial seal is formed between the implant connecting portion and the central tapered hole, a micro gap at an interface is smaller than 0.5 micrometer, the bacterial seal prevents a microbial leakage problem, the microbial leakage can cause soft tissue inflammation, and bone resorption around the implant and implantation failure are caused.
In order to facilitate the implant 100 to be pushed into the implant nest and to be combined with bone grafting materials uniformly after being implanted, in the embodiment, the multiple layers of wing plates 121 are coaxially arranged and are coaxial with the implant 100, and the outer diameter of the wing plate 121 closest to the neck 110 of the implant is not larger than the outer diameter of the neck 110 of the implant; and in the two adjacent layers of the wing plates 121, the outer diameter of the wing plate 121 which is far away from the neck part 110 of the implant is not larger than that of the wing plate 121 in the other layer. As shown in fig. 5, taking the adjacent two-layer wing panel 121 in the dashed line frame I and the dashed line frame II as examples, the outer diameter of the wing panel 121 farther from the implant neck 110 in the dashed line frame I (i.e., the wing panel positioned lower in the dashed line frame I) is equal to the outer diameter of the other-layer wing panel 121 (i.e., the wing panel positioned upper in the dashed line frame I), and the outer diameter of the wing panel 121 farther from the implant neck 110 in the dashed line frame II (i.e., the wing panel positioned lower in the dashed line frame II) is smaller than the outer diameter of the other-layer wing panel 121 (i.e., the wing panel positioned upper in the dashed line frame II). Therefore, at least part of the outer contour of the implant body 120 can also have a taper, so that the implant resistance can be reduced as much as possible and the implant implantation difficulty can be reduced no matter the implant 100 is manually pushed into the implantation nest or the implant 100 is knocked by a tool to be pushed into the implantation nest.
Preferably, the outer diameter of the wing 121 farther from the neck 110 of the implant is smaller than the outer diameter of the wing 121 of the other layer of the adjacent two layers of the wings 121, so that the outer contour of the implant body 120 is tapered to further facilitate the implantation.
Also, in order to facilitate the implant 100 to be pushed into the implant socket, the wing plates 121 at the root of the implant body 120 have a guiding taper for facilitating the implant of the implant 100, i.e., the circumferential outer side of at least one layer of the wing plates 121 at the root of the implant body 120 is a slope, so that the wing plates 121 have a guiding taper. As shown in fig. 5, the outer circumferential surfaces of the two lowest wing plates 121 are inclined surfaces, and the outer diameters thereof gradually decrease from top to bottom.
As shown in fig. 2, 3, 5 and 6, the longitudinal section of the occlusion groove 122 is circular arc, so as to avoid forming a filling dead angle of the bone grafting material and improve the combination uniformity of the implant 100 and the bone grafting material.
In addition, as shown in fig. 1 to 6, a groove 140 is formed between the wing plate 121 nearest to the implant neck 110 and the implant neck 110, a plurality of baffles 150 are arranged in the groove 140 along the circumferential direction thereof, and the plurality of baffles 150 divide the groove 140 into a plurality of parts along the circumferential direction, so as to further improve the bonding strength between the implant 100 and the bone grafting material.
As shown in fig. 1 and 2, 4 and 5, a plurality of anti-rotation grooves 123 are formed at the root of the circumferential outer side surface of the implant body 120, the anti-rotation grooves 123 extend in the length direction of the implant body 120, and the plurality of anti-rotation grooves 123 are circumferentially arranged and divide at least one layer of wing plates 121 at the root of the circumferential outer side surface of the implant body 120 into a plurality of sections in the circumferential direction. The anti-rotation grooves 123 in the embodiment are 4 in number, are uniformly distributed along the circumferential direction, and are filled with bone grafting materials after being implanted, so that the effect of preventing the circumferential rotation of the implant 100 can be achieved, and the retention stability of the implant 100 is ensured.
In addition, as shown in fig. 1 to 6, in the present embodiment, the circumferential outer side surface 111 of the implant neck 110 is tapered, that is, the outer contour of the implant neck 110 is tapered, and the outer diameter of the implant neck 110 gradually increases from the penetrating end surface thereof toward the side of the implant body 120. The tapered circumferential outer side 111 provides better support and more rapid bone formation after implantation of the implant 110, greatly helps maintenance of the bone mass, provides better support and stabilization of the bone above the implant 100, and thus simply and continuously ensures an aesthetic gum contour.
The taper of the circumferential outer side surface 111 of the implant neck 110 (i.e., the angle of the taper angle β) is preferably in the range of 20 to 65 °, and an excessively large angle of the taper angle β causes the implant 100 to be bulky and inconvenient to implant, and an excessively small angle is not favorable for preventing bone resorption and providing support for the gingival papilla.
In the artificial dental implant of the embodiment, when the artificial dental implant is implanted, the implant 100 is pushed into the prepared implant nest, the top surface of the implant 100 is 0-5mm lower than the bone plane after the implant 100 is in place, and bone grafting materials are fused with the implant 100; after fusion, the abutment 200 is inserted into the central taper hole 130 of the implant 100 through the implant connecting part 220, and then the end surface of the crown connecting part 210 is knocked along the axial direction of the abutment 200, so that the implant connecting part 220 and the central taper hole 130 are in interference fit to realize self-locking connection of the abutment 200 and the implant 100; after the soft tissue is healed and molded, the prosthetic crown is attached to the crown connection part 210 of the abutment 200.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An artificial dental implant, comprising:
the implant comprises an implant neck and an implant body which are axially arranged and connected into a whole, the implant is provided with a central taper hole axially arranged, the central taper hole is a blind hole with one end penetrating through the end face of the implant neck and the other end extending into the implant body, and the inner diameter of the central taper hole is gradually reduced from the orifice of the central taper hole to the bottom of the hole; a plurality of layers of wing plates are formed on the circumferential outer side surface of the implant body at intervals along the axial direction, each layer of wing plate surrounds the implant body for a circle, and a space between two adjacent layers of wing plates forms an occlusion groove;
the abutment is of a solid structure and comprises a dental crown connecting part and an implant connecting part which are axially arranged and integrally connected, the implant connecting part has a taper matched with the central taper hole, and the implant connecting part is inserted in the central taper hole and is in interference fit with the central taper hole.
2. The artificial dental implant according to claim 1,
the multiple layers of wing plates are coaxially arranged, the outer diameter of the wing plate closest to the neck of the implant is not larger than the outer diameter of the neck of the implant, and the outer diameter of the wing plate far away from the neck of the implant in the two adjacent layers of wing plates is not larger than the outer diameter of the wing plate in the other layer.
3. The artificial dental implant according to claim 1,
the multiple layers of wing plates are coaxially arranged, the outer diameter of the wing plate closest to the neck of the implant is not larger than the outer diameter of the neck of the implant, and the outer diameter of the wing plate far away from the neck of the implant in the two adjacent layers of wing plates is smaller than the outer diameter of the wing plate in the other layer.
4. The artificial dental implant according to claim 2 or 3,
the wing plate at the root of the implant body has a guiding taper that facilitates implantation of the implant.
5. The artificial dental implant according to claim 1,
the longitudinal section of the occlusion groove is arc-shaped.
6. The artificial dental implant according to claim 5,
a groove is formed between the wing plate closest to the neck of the implant and the neck of the implant, a plurality of baffles are distributed in the groove along the circumferential direction, and the groove is divided into a plurality of parts along the circumferential direction by the baffles.
7. The artificial dental implant according to claim 1,
the anti-rotation planting device is characterized in that a plurality of anti-rotation grooves are formed in the root of the circumferential outer side face of the planting body, the anti-rotation grooves extend along the length direction of the planting body, the anti-rotation grooves are circumferentially distributed and divide at least one layer of the root of the circumferential outer side face of the planting body into a plurality of parts along the circumferential direction.
8. The artificial dental implant according to claim 1,
the implant connecting part is matched with the central taper hole in a Morse taper manner.
9. The artificial dental implant according to claim 1,
the circumference lateral surface of planting body neck is the toper, just the external diameter of planting body neck is by its terminal surface to planting body place side crescent.
10. The artificial dental implant of claim 9,
the taper range of the circumferential outer side surface of the implant neck is 20-65 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110625140.8A CN113367819A (en) | 2021-06-04 | 2021-06-04 | Artificial tooth planting body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202200000866A1 (en) * | 2022-01-20 | 2023-07-20 | Eptamed Srl | Kit for dental implant, endosseous portion of dental implant, screwing abutment, closing abutment, transmucosal healing abutment, prosthetic abutment and impression abutment |
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| US6733291B1 (en) * | 1999-09-27 | 2004-05-11 | Nobel Biocare Usa, Inc. | Implant with internal multi-lobed interlock |
| KR20030068927A (en) * | 2002-02-19 | 2003-08-25 | 장상건 | Implant |
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| IT202200000866A1 (en) * | 2022-01-20 | 2023-07-20 | Eptamed Srl | Kit for dental implant, endosseous portion of dental implant, screwing abutment, closing abutment, transmucosal healing abutment, prosthetic abutment and impression abutment |
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Application publication date: 20210910 |