CN211094845U

CN211094845U - Fixed prosthesis for partial missing teeth

Info

Publication number: CN211094845U
Application number: CN201921173719.XU
Authority: CN
Inventors: 刘友烈
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-07-28
Anticipated expiration: 2029-07-23

Abstract

The utility model relates to a fixed prosthesis of tooth especially relates to a fixed prosthesis that is used for part disappearance tooth, including support and prosthesis body, the support includes first support and second support, and first support is positive support, including first connector, first pterygoid lamina, adjacent tooth heart near support and the positive embolus of accurate attachment, and the second support is negative support, including second connector, second pterygoid lamina, adjacent tooth heart far support and the negative embolism way of accurate attachment. The utility model provides a fixed prosthesis make full use of both ends adjacent tooth and the concave of falling that adjacent tooth formed increase product retention for partial disappearance tooth, need not the operation, and it is few to be equipped with adjacent tooth tissue, and adjacent tooth and tooth body tissue are not hurt, and the protection is adjacent healthy.

Description

Fixed prosthesis for partial missing teeth

Technical Field

The utility model relates to a tooth fixing prosthesis, in particular to a fixing prosthesis for partial missing teeth.

Background

Although tooth loss is a common phenomenon in daily life, if the lost teeth are left alone, not only can the chewing of food be affected, but also the beautiful smile of people can be affected. Thus, for a fallen tooth, we need to treat it. Usually, a false tooth or removable tray made of artificial material is implanted in the missing tooth position, which is also known as "false tooth" during treatment.

Generally, alveolar bone absorption is caused by tooth loss of a patient with tooth loss, and then, in the process of fixing restoration, the patient is restored through either implantation or a fixing bridge.

The implant restoration is a restoration method that an artificial tooth root is implanted into a jaw bone and is fixed by a screw after forming bone combination with an alveolar bone. This form of repair is also an operation and has high requirements on the physical and psychological quality of the patient. Meanwhile, the repair method has long treatment period and high cost, and the implementation of the dental implant has limitation.

Fixed bridge prosthesis is the most representative type of prosthesis, however, its manufacture requires grinding and cutting the natural teeth beside the missing tooth, preparing a retainer and then bridge-cementing the denture. If a sufficient retention force is obtained when a retainer is prepared on an abutment, it is necessary to cut a large amount of dental tissue, and this may cause sequelae such as pulp exposure and allergic reactions. In addition, the adhesive falls off and secondary caries often induce pathological changes such as pulp degeneration and necrosis during use. Also, if the adjacent teeth are severely inclined, it is often necessary to perform a root canal treatment first because of the excessive preparation of the tooth body. Because the abutment without pulp activity is fragile and easy to break because of no nutrition supply, the abutment after root breaking is often required to be pulled out, which causes a series of complicated problems and great inconvenience.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a fixed prosthesis that is used for part disappearance tooth, the undercut that can make full use of both ends adjacent tooth and adjacent tooth form increases the product retention, need not the operation, and it is few to be equipped with adjacent tooth tissue, does not harm adjacent tooth and tooth body tissue to the protection is adjacent tooth healthy.

In order to accomplish the above objects, the present invention provides a fixed prosthesis for a partially missing tooth, comprising a stent and a prosthesis body, the stent comprising a first stent and a second stent, the first stent being a male stent comprising a first connector, a first wing plate, an adjacent tooth proximal rest and a precision attachment male plug, the first connector being positioned between a first abutment and the prosthesis body, the first wing plate being provided at one side or both sides of any of a buccal side or a lingual side of one end of the first connector facing the first abutment and being provided with a first arc-shaped attaching part closely attached to the first abutment, the adjacent tooth proximal rest being provided at a concave groove side of the first abutment of one end of the first connector facing the first abutment and being provided with a first flange structure fitted to the concave groove of the first abutment, the precise attachment positive bolt is arranged on one side of the first connecting body facing the prosthesis body and is provided with a positive combining part, and the precise attachment positive bolt is provided with a first combining part tightly combined with the gum on one side facing the missing gum;

the second bracket is a negative bracket and comprises a second connector, a second wing plate, an adjacent tooth telecentric support and a precise attachment negative key way, the second connector is positioned between the second abutment and the prosthesis body, the second wing plate is arranged on one side or two sides of the second connector facing to any one of the buccal side or the lingual side of the second abutment and is provided with a second arc-shaped attaching part closely attached to the second abutment, the adjacent tooth telecentric support is arranged on the groove side of the second abutment at one end of the second connector facing to the second abutment and is provided with a second flange structure matched with the groove of the second abutment, the precise attachment negative key way is arranged on one side of the second connector facing to the prosthesis body and is provided with a negative combining part matched with the positive combining part, a second combining part tightly attached to the gum is arranged on one side, facing the missing gum, of the female key way of the precise attachment;

the bottom of the prosthesis body is provided with a groove structure matched with the shape of the spliced key body of the first bracket and the key way of the second bracket.

Furthermore, bolt holes are formed in the precise attachment positive bolt body and the precise attachment negative bolt channel, bolts are arranged in the bolt holes, and the bolts are inserted from the buccal side or the lingual side.

Further, the first bracket and the second bracket are formed by casting.

Further, the first support and the second support are formed by metal printing and milling.

Further, the prosthesis body is directly manufactured by applying OP, porcelain, vehicle porcelain and glaze on the second bracket.

Further, the prosthesis body is directly manufactured by polymerizing porcelain or light-cured resin on the second support.

The utility model has the advantages that:

1. the product retention force is increased by fully utilizing the adjacent teeth at two ends and the inverted concave formed by the adjacent teeth;

2. the operation is not needed, the prepared adjacent tooth tissue is less, the adjacent tooth and the tooth body tissue are not damaged, and the health of the adjacent tooth is protected;

3. the black triangle generated by the adjacent tooth can be closed, so that the triangle is prevented from being embedded with food;

4. the manufacture and installation are simple and quick;

5. the upper prosthesis body is directly polymerized with porcelain and light-cured resin on the negative key way and the negative connector of the precise attachment, and the later maintenance is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 provides a perspective view of a fixed prosthesis for a partially missing tooth according to an embodiment of the present invention;

fig. 2 is an exploded view of a fixed prosthesis for partially missing teeth shown in fig. 1;

fig. 3 is an exploded view of a stent for a fixed prosthesis for partially missing teeth shown in fig. 1;

FIG. 4 is a perspective view of a first bracket of the brackets shown in FIG. 3;

FIG. 5 is a perspective view of a second bracket of the bracket shown in FIG. 3;

fig. 6 is a perspective view of a prosthesis body for a fixed prosthesis for a partially missing tooth shown in fig. 1;

fig. 7 is a perspective view of a fixed prosthesis for partially missing teeth shown in fig. 1 mounted on a tooth model;

fig. 8 is an enlarged view of a portion a shown in fig. 7.

Reference numerals:

1-a scaffold; 11 a first support; 111-a first linker; 112-a first wing panel; 1121-first arc attaching part; 113-proximal rest of adjacent teeth; 1131 — a first flange structure; 114-precision attachment positive plugs; 1141-a positive binding moiety; 1142-a first binding moiety; 12-a second scaffold; 121-a second linker; 122-a second wing panel; 1221-a second arcuate fit portion; 123-telecentric support of adjacent teeth; 1231-a second flange structure; 124-precise attachment negative key; 1241-negative binding moiety; 1242-a second bond; 1143-bolt hole; 1243-bolt hole; 13-a bolt; 2-prosthesis body; 21-a groove structure; 3-a first abutment; 4-second abutment.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-8, the utility model provides a fixed prosthesis for partial missing tooth, which comprises a bracket 1 and a prosthesis body 2. The bracket 1 includes a first bracket 11 and a second bracket 12. The first bracket 11 is a male bracket and comprises a first connecting body 111, a first wing plate 112, an adjacent tooth proximal support 113 and a precise attachment male plug body 114. Said first connection 111 is located between the first abutment 3 and the prosthesis body 2. The first wing plate 112 is disposed on one side or both sides, preferably the lingual side, of either the buccal side or the lingual side of one end of the first connecting body 111 facing the first abutment 3, so as to design the prosthesis body 2 to be more beautiful, and the first wing plate 112 is designed to be not easily visible on the lingual side and is provided with a first arc-shaped attaching portion 1121 closely attached to the first abutment 3. The adjacent tooth proximal lug 113 is disposed at a groove side of the first abutment 3 of an end of the first connection body 111 facing the first abutment 3, and is provided with a first flange structure 1131 to be fitted with the groove of the first abutment 3. The precise attachment male plug 114 is disposed on the side of the first connecting body 111 facing the prosthesis body 2 and is provided with a male coupling portion 1141, and the precise attachment male plug 114 is provided with a first coupling portion 1142 closely coupled to the gum on the side facing the missing gum. The second bracket 12 is a female bracket and comprises a second connector 121, a second wing plate 122, an adjacent tooth telecentric support 123 and a precise attachment female key channel 124. The second connecting body 121 is located between the second abutment 4 and the prosthesis body 2. The second wing 122 is disposed on one side or both sides, preferably on the lingual side, of the second connecting body 121 facing either the buccal side or the lingual side of the second abutment 4, so that the prosthesis body 2 can be designed to be more aesthetically pleasing, and the first wing 112 is designed to be less visible on the lingual side and to be provided with a second curved abutment 1221 closely abutting against the second abutment 4. The adjacent tooth telecentric lug 123 is disposed at the groove side of the second abutment 4 at the end of the second connecting body 121 facing the second abutment 4, and is provided with a second flange structure 1231 fitted with the groove of the second abutment 4. The precise attachment negative key 124 is arranged on one side of the second connecting body 121 facing the prosthesis body 2 and is provided with a negative combining part 1241 matched with the positive combining part 1141, and the precise attachment negative key 124 is provided with a second combining part 1242 tightly attached with the gum on one side facing the missing dental gum. The bottom of the prosthesis body 2 is provided with a groove structure 21 which is matched with the shape of the spliced key body of the first bracket 11 and the key way of the second bracket 12.

As a further improvement of the above solution, the precise attachment male key 114 and the precise attachment female key 124 are both provided with a

key hole

1143,1243, a key 13 is disposed in the

key hole

1143,1243, and the key 13 is inserted from the buccal side or the lingual side. The design can increase the retention force of product like this, and the product can directly use 13 retentions of bolt moreover, need not bond the maintenance, conveniently gets to wear and the product later stage is at the intraoral clean processing.

As a further improvement of the above solution, the first bracket 11 and the second bracket 12 are formed by casting. The integral forming and manufacturing are rapid.

As a further improvement of the above solution, the first bracket 11 and the second bracket 12 are formed by metal printing and milling. Thus, the structure is precise.

As a further improvement of the above scheme, the prosthesis body 2 is directly manufactured by applying OP, porcelain lathing and glazing on the second stent 12. The manufacturing time is short.

As a further improvement of the above solution, the prosthesis body 2 is made of polymeric porcelain or light-cured resin directly on the second stent 12. So preparation, the preparation time is fast, and the polymer porcelain is difficult to split simultaneously, handles also convenient in time in the mouth.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. Fixed prosthesis for partial missing teeth, comprising a stent (1) and a prosthesis body (2), characterized in that the stent (1) comprises a first stent (11) and a second stent (12), the first stent (11) is a male stent and comprises a first connector (111), a first wing (112), an adjacent tooth proximal rest (113) and a precision attachment male plug (114), the first connector (111) is located between a first abutment (3) and the prosthesis body (2), the first wing (112) is arranged on one side or both sides of either buccal side or lingual side of one end of the first connector (111) facing the first abutment (3) and is provided with a first arc-shaped fitting part (1121) tightly fitting with the first abutment (3), and the adjacent tooth proximal rest (113) is arranged on a recess of the first abutment (3) on one end of the first connector (111) facing the first abutment (3) A first flange structure (1131) matched with the groove of the first abutment (3) is arranged on the side, facing the prosthesis body (2), of the first connecting body (111), the precise attachment body male plug body (114) is provided with a male combining part (1141), and a first combining part (1142) tightly combined with a dental bed is arranged on the side, facing the missing dental bed, of the precise attachment body male plug body (114);

the second bracket (12) is a female bracket and comprises a second connecting body (121), a second wing plate (122), an adjacent tooth telecentric support (123) and a precise attachment female tether (124), the second connecting body (121) is positioned between a second abutment (4) and the prosthesis body (2), the second wing plate (122) is arranged on one side or two sides of the second connecting body (121) facing either the buccal side or the lingual side of the second abutment (4) and is provided with a second arc-shaped attaching part (1221) closely attached to the second abutment (4), the adjacent tooth telecentric support (123) is arranged on the groove 1231 of the second abutment (4) facing one end of the second connecting body (121) of the second abutment (4) and is provided with a second flange structure (1231) matched with the groove of the second abutment (4), and the precise attachment female tether (124) is arranged on the second connecting body (121) facing the groove of the prosthesis body (4) A negative combining part (1241) matched with the positive combining part (1141) is arranged on one side of the compound body (2), and a second combining part (1242) tightly attached to the gum is arranged on one side, facing the missing gum, of the precise attachment negative key way (124);

the bottom of the prosthesis body (2) is provided with a groove structure (21) which is matched with the shape of the spliced key body of the first bracket (11) and the key way of the second bracket (12).

2. The fixed prosthesis for partial missing teeth according to claim 1, characterized in that said precise attachment positive peg (114) and said precise attachment negative channel (124) are each provided with a pin hole (1143,1243), said pin hole (1143,1243) being provided with a pin (13), said pin (13) being inserted from buccal side or lingual side.

3. Fixed prosthesis for partial loss of teeth according to claim 1, characterized in that said first stent (11) and said second stent (12) are shaped by casting.

4. Fixed prosthesis for partial loss of teeth according to claim 1, characterized in that said first stent (11) and said second stent (12) are shaped by metal printing and milling.

5. Fixed prosthesis for partial loss of teeth according to claim 1, characterized in that the prosthesis body (2) is made directly on the second scaffold (12) by OP, porcelain, lath porcelain and glazing.

6. Fixed prosthesis for partial loss of teeth according to claim 1, characterized in that the prosthesis body (2) is made of polymeric porcelain or light-cured resin directly on the second stent (12).