CN201719398U

CN201719398U - Novel adhesion bridge for restoring individual anterior tooth missing

Info

Publication number: CN201719398U
Application number: CN2010202657439U
Authority: CN
Inventors: 熊宇; 陈吉华; 罗玲; 周继祥
Original assignee: First Affiliated Hospital of TMMU
Current assignee: Third Military Medical University TMMU; First Affiliated Hospital of TMMU
Priority date: 2010-07-21
Filing date: 2010-07-21
Publication date: 2011-01-26
Anticipated expiration: 2020-07-21

Abstract

The utility model discloses a novel adhesion bridge for restoring individual anterior tooth missing, which is made from a dental ceramic or fiber reinforced resin composite material, and comprises a bridge body for replacing a missing tooth and retainers which are adhered to abutment retention surfaces at the two ends of a space, wherein the retention surface is an abutment labial side tooth surface, and the retainer is in a veneer structure the shape of which is similar to the abutment labial side tooth surface. Different from the existing fixed denture or the lingual wing-plate adhesion bridge and other restoration methods, the adhesion bridge of the utility model takes a ceramic (or fiber reinforced composite resin) veneer as a retainer which is adhered to the labial surfaces of the abutments at the two ends of the space by a dental adhesive and resin cementum, effectively overcomes the defects that the grinding amount of the abutment of the conventional fixed denture is large, easily leading to the injury of the dental pulp of the abutment and the like, simultaneously overcomes the defects that the existing lingual wing-plate adhesion bridge easily produce occlusive obstacles and cause secondary caries and the like, has the advantages of simple and convenient operation, reliable retention and good attractiveness, and is favorable for keeping periodontal tissue health.

Description

A kind of novel adhesion bridge that is used to repair indivedual anterior tooth deficiencies

Technical field

This utility model belongs to a kind of medical apparatus and instruments, particularly relates to the permanent reparation adhesion bridge of a kind of dentistry.

Background technology

Fixed bridge claims fixed denture again, is the natural teeth of repairing one or several disappearance in the denture, recovers a kind of dummy of its anatomic form and physiological function.It mainly utilizes the natural teeth of edentulous space both ends or one end as abutment, and by the retainer that is connected with the artificial tooth it is adhered on the abutment.Fixed bridge is made up of retainer, pontic (artificial tooth) and connector three parts.

Shown in Figure of description 1, existing fixed bridge is usually with making such as metal porcelain, dental polishing materials, its retainer mainly contains forms such as inlay, partial crown and complete crown, clinical preparation abutment requires the tissue of tooth of a large amount of grinding abutments under local anesthesia often, and may cause pulp injury thus; Especially when with the lower jaw incisor during as the abutment of fixed bridge, because the tooth preparation quantity not sufficient, it is relatively poor usually to cause repairing the backteeth volume morphing, influences attractive in appearance.

For reducing the tissue of tooth preparation of abutment, the adhesion bridge recovery technique is necessarily developed in recent years, and shown in Figure of description 2, it adopts metal alar plate as retainer, relies on the surface bonding to be seated in the lingual surface of abutment.Because its metal alar plate is positioned at the tongue side, may influences self-cleaning and disturb masticatory movement to a certain extent; Attractive in appearance for avoiding influencing, the area of metal alar plate is less usually, has influenced its bond effect to a certain extent; Even more serious is; because the metal alar plate position is hidden; the loosening back of adhesion bridge one side retainer is normal to be difficult for for the patient discovers, and the patient that therefore clinical common adhesion bridge is repaired causes recurrent caries because of retainer is loosening, and causes the serious dental caries of abutment badly even pulp necrosis and going to a doctor.

In recent years because the continual renovation of material, make originally only to be used to make artificial tooth and holder and the fiber-reinforced resin of provisional dummy such as to close and also begin to be used to make adhesion bridge.Owing to have the metal adhesion bridge to the few advantage of natural teeth damage, thereby this fiber-reinforced resin adhesion bridge has received more concern in the Oral Repair field.But this fiber-reinforced resin adhesion bridge must satisfy the condition that backteeth, abutment that missing tooth is non-free-end are tight vital tooth, abutment corona intact (or the proximal surface dental caries are arranged, or charges are arranged).

The utility model content

Technical problem to be solved in the utility model provides a kind of novel adhesion bridge that is used to repair indivedual anterior tooth deficiencies, and it is few to have an abutment grinding, is convenient to prevent and treat the characteristics of recurrent caries, guarantees high strength bonding bridge attractive in appearance simultaneously.

In order to solve the problems of the technologies described above, novel adhesion bridge provided by the utility model, comprise the pontic and the retainer that adheres on the abutment maintenance face of gap two ends that are used for substituting missing tooth, described adhesion bridge is made of dental polishing material or fiber-reinforced composite resin, described maintenance face is an abutment lip side facing, and described retainer is the veneered construction with the profiling of abutment lip side facing.

For the indication of this utility model adhesion bridge, following specific requirement is arranged: 1. be mainly used in the little labial teeth of gmatjpdumamics, be specially adapted to the case of upper jaw lateral incisor and the single anterior tooth deficiency of lower jaw; 2. the excessive or eye tooth of edentulous space disappearance is not the indication of this utility model adhesion bridge; 3. gap both sides abutment N/D or have damagedly on a small quantity, abutment lip side facing has enough agglutinating enamel areas that can be used for.

This utility model adhesion bridge is different with existing lingual surface wing plate adhesion bridge repair mode, and its retainer is to be formed by dental polishing material or fiber-reinforced composite resin, and with the veneered construction of abutment lip side facing profiling.Adopt this utility model adhesion bridge that following advantage is arranged:

1. this utility model adhesion bridge integral body is made with dental polishing material or fiber-resin composite, has good aesthetic property and biological safety.

2. have the few advantage of existing bonding bridge base tooth body tissue's cutting, complied with the idea of minimally-invasive treatment admirably, need when having avoided existing fixed bridge to repair that a large amount of tooth bodies are worn to be waited not enoughly, be easy to obtain common path of insertion.When being used for the reparation of following anterior tooth deficiency, the problems such as dummy aesthetic property difference that can also avoid the tooth preparation quantity not sufficient to cause; In addition, need not to carry out local anesthesia generally speaking, reduced patient's fear effectively;

3. have the uneven cases of denture such as paramophia such as a small amount of dental defect, tooth deformity, diastema and slight malposed tooth, wandering teeth for gap both sides abutment, this utility model adhesion bridge can be repaired abutment with the veneer form when repairing missing tooth.

4. except that cutting end preparation tongue side shoulder, need not tooth body lingual surface is carried out grinding during tooth preparation, mainly the abutment labial surface is carried out grinding, can under doctor's direct-view, finish, help to improve the tooth preparation precision, reduce the feeling of fatigue of doctor's operation;

5. the utilization of this utility model adhesion bridge is positioned at porcelain (or fiber-reinforced composite resin) veneer of abutment labial surface as retainer, can provide than the bigger bond area of existing adhesion bridge tongue side wing, then obtain more reliable adhesion strength, avoid the dummy early fallout;

6. the dummy edge is positioned at the labial surface self-cleaning area mostly, effectively prevents the generation of recurrent caries; In addition, in case recurrent caries takes place, also be beneficial to early discovery, the early treatment;

7. compare with existing tongue side wing adhesion bridge, Upper Anterior Teeth lingual surface interlock contact area is avoided at this utility model adhesion bridge retainer edge easily, avoids the early damage of dummy;

8. the eye tooth lingual surface usually is the function inclined-plane of guiding mandibular movement, and this utility model adhesion bridge has been avoided the interlock that eye tooth tongue side tooth preparation and dummy bonding may cause is disturbed;

9. need not to carry out the lingual surface tooth preparation, the foreign body sensation of having avoided tongue body contact dummy edge to cause, comfort level is good.

Description of drawings

Below in conjunction with the drawings and specific embodiments this utility model is described in further detail:

Fig. 1 is the structural representation of prior art metal porcelain bridge Of lost;

Fig. 2 is the structural representation of the metal lingual surface wing plate adhesion bridge of prior art;

Fig. 3 is the structural representation of the novel adhesion bridge of this utility model.

The specific embodiment

As shown in Figure 3, this utility model adhesion bridge comprises the pontic 1 and the retainer 3 that adheres on the gap two ends abutment maintenance face 2 that is used for substituting missing tooth, described adhesion bridge is made of dental polishing material or fiber-reinforced composite resin, described maintenance face 2 is an abutment lip side facing, and described retainer 3 is the veneered constructions with the profiling of abutment lip side facing.

Following tooth preparation requirement and reparation step for using this utility model adhesion bridge.

Tooth preparation requires:

1. conventional row's gum generally need not local anesthesia, but local anesthesia in case of necessity;

2. the tooth preparation repaired with conventional veneer of labial surface preparation, thinnest part should worn at least 0.5mm, and concrete worn amount requires to finish according to selected full ceramic material, and the preparation face that as far as possible guarantees is positioned at enamel;

2. incisxal edge should be designed to the formula of holding, and incisxal edge grinds short 1-1.5mm and prepares the dark acerous shoulder of spill of 0.5～1.0mm in cutting end tongue side;

3. the tooth preparation that gap side proximal surface preparation far away is repaired with conventional veneer along proximal surface stretching, extension place preparation inclined shoulder type shoulder edge, is positioned at the hidden zone of proximal surface, does not destroy contact point;

4. nearly gap side proximal surface reduction amount should be big slightly, with the connector intensity (it is different and different to look different full ceramic restoration materials) that guarantees this adhesion bridge, and is beneficial to recovery normal teeth volume morphing and embrasures;

5. the dark spill shoulder of the neck edge about 0.5mm of preparation can be prepared as shoulder or concordant with the gum edge on the gum;

6. after the preparation molding, to preparation body edge polishing, remove sharp line angle, row's gum, delivery.

Repair step:

1. tooth preparation;

2. remove the gum line, high-accuracy impression material delivery is selected and the harmonious color of adjacent teeth;

3. can make temporary prosthesis in case of necessity, the point-like acid etching bonds;

4. send the skilled worker chamber behind the perfusion model, select suitable repair materials to finish the reparation of adhesion bridge;

5. trying on of adhesion bridge finished in patient's further consultation, the conventional binder-treatment of conventional facing and dummy tissue surface, and the resin cement bonding is removed unnecessary resinoid bond, adjusts dental articulation power, polishing.

This utility model adhesion bridge is with dental polishing materials such as casting porcelain, aluminium oxide, zirconium oxides, or, complete in modes such as illumination curing after lost-wax casting, computer-aided design and making (CAD/CAM) or manual the accumulation with the fiber-resin composite making.

This utility model veneer bridge can also use the full ceramic material of other dentistry and other artificial teeth to shape technology and make, and does not describe in detail one by one at this.For a person skilled in the art; under the prerequisite that does not break away from this utility model structure; can also make some distortion and improvement, these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that this utility model is implemented.

Claims

1. novel adhesion bridge that is used to repair indivedual anterior tooth deficiencies, comprise the pontic and the retainer that adheres on the abutment maintenance face of gap two ends that are used for substituting missing tooth, described adhesion bridge is made of dental polishing material or fiber-reinforced composite resin, it is characterized in that: described maintenance face is an abutment lip side facing, and described retainer is the veneered construction with the profiling of abutment lip side facing.