CN1276746C

CN1276746C - Fixed bridge type planted tooth without corona sheath and its production method

Info

Publication number: CN1276746C
Application number: CN 200310110872
Authority: CN
Inventors: 张从纪; 孙远
Original assignee: First Affiliated Hospital of TMMU
Current assignee: Third Military Medical University TMMU; First Affiliated Hospital of TMMU
Priority date: 2003-11-04
Filing date: 2003-11-04
Publication date: 2006-09-27
Anticipated expiration: 2023-11-04
Also published as: CN1541629A

Abstract

The present invention relates to a fixed bridge type artificial tooth planting body without a crown sleeve, which comprises a body part 6 and foundation piles 4 connected with the body part 6. The present invention is characterized in that two wings 3 are arranged on each of the foundation piles; each of the wings is either connected with a fixed body through the connection cap 2 of the fixed body or connected with one wing on the other foundation pile. A method comprises the steps that an oral cavity female mold is manufactured; the position of the fixed body stuck with prepared adjacent teeth is arranged in the female mold; then, a male mold of oral cavity tooth rows is manufactured; the connection cap of the fixed body and the connection core bodies of the fixed planting body with the foundation piles are arranged on the male mold to make the positions of the connection cap and the connection core bodies on the mold the same with the positions in an oral cavity; the foundation piles of the planting body are placed; the two wings of the foundation piles are connected and welded with the connection cap of the fixed body to be fixed; the manufacture of the foundation piles with the connection cap of the fixed body of the planting body is finished; the upper part structure of a planting false tooth is manufactured on the foundation piles. The present invention can make adjacent teeth share partial pressure, decrease the pressure of the body part of the tooth planting body to tooth alveolar bones, and prolong the lifetime of the tooth planting body. The pile foundation of the tooth planting body is divided into an inner part and an outer part, which is convenient for clinical operation.

Description

There is not fixedly bridge-type Dental Implant and preparation method thereof of hat cover

Technical field

This invention relates to a kind of novel manual tooth planting's body and preparation method thereof, is applicable to the reparation of a small amount of disappearance tooth Dental Implant fixed denture.

Background technology

The disappearance that Buccodental is repaired by implantation body is comparatively advanced at present a kind of reparation means, and the base portion of Dental Implant directly links with jawbone, and fixes wherein, do not need after the reparation to extract, do not have obvious foreign body sensation, patient's sensation with from body tooth no significant difference, therefore more and more be subjected to patient's welcome.Yet, find that it easily produces phenomenons such as becoming flexible, come off along with the clinical practice of Dental Implant.The important indicator of judging the tooth implant success or not mainly is the degree of implantation body's bone interface healing and the healing degree at implantation body and gingival epithelium interface.Because present Dental Implant base material is mainly titanium alloy, it combines with the physical property that is combined into of alveolar bone, and the frictional force between dependence alveolar bone and base threads fixes, and the synostosis rate of itself and bone interface can not reach 100%.Simultaneously, As time goes on,  power directly acts on the absorption that alveolar bone causes alveolar bone, and particularly the alveolar bone around implantation body's apical area and the cervical region is the main concentrated area of stress, also is main clinically bone resorption district.Therefore the success rate at a specified future date and the Biomechanical factor of implantation body are closely related, and too high stress can cause the implant neck surrounding bone to absorb and then cause becoming flexible, coming off of implantation body.Differences such as the existing position that studies show that implantation body's material, shape, size and implantable bone tissue, number can exert an influence to implantation body-bone interface stress, but still can not solve the stress concentration that causes alveolar bone owing to the conduction of  power.

In order to address the above problem, traditional fixed bridge Technology Need is made the hat cover on adjacent teeth, and is more to the adjacent teeth wearing and tearing like this, destroys greatly, increases patient's the misery and the feared state of mind, simultaneously because the existence of metal crown cover, influences attractive in appearancely, is not suitable for the labial teeth reparation.

Summary of the invention

One of this invention technical problem to be solved is: fixedly bridge-type manual tooth planting body of a kind of nothing hat cover is provided, this implantation body can be under the situation that does not reduce the suffered  power of Dental Implant, reduce the pressure of implantation body's base portion alveolar bone, thereby solve above-mentioned inhomogeneous absorption, reduce the mortality of Dental Implant owing to the excessive caused bone regeneration around implant osseous tissue of gmatjpdumamics.

Two of technical problem to be solved by this invention is: the fixedly manufacture method of bridge-type manual tooth planting body of a kind of above-mentioned nothing hat cover is provided.The fixed bridge technology that method adopts can be disperseed suffered  power a part of Dental Implant to adjacent teeth, and the stress that implantation body's base portion osseous tissue is born reduces.And make Dental Implant can adopt nothing hat cover fixed bridge recovery technique, and it has overcome the drawback of conventional fixed bridge recovery technique, has the following advantages: (1) grinds one's teeth in sleep few, no pain, and patient and doctor are acceptant; (2) simple to operate, the material-saving that saves time, expense is low; (3) retainer stretches in the corona away from dental pulp, and is safe and reliable; (4) adopt inhomogeneous retainer, can satisfy different patients' needs.

First technical scheme that the present invention adopts is such, it is fixedly bridge-type manual tooth planting body of a kind of nothing hat cover, tooth implant comprises body and the foundation pile that is attached thereto, it is characterized in that: have both wings on the foundation pile, every wing links to each other by retainer attachment cap and retainer or is connected with the wing on another foundation pile.

Second technical scheme that the present invention adopts is such, and promptly a kind of nothing hat cover is manufacture method such as bridge-type manual tooth planting body fixedly, and method comprises: make the oral cavity former, include in this former with prepare after the position of the bonding retainer of adjacent teeth; Make the formpiston of oral cavity denture again, on formpiston, place the retainer attachment cap, the fixing core body that is connected of implantation body and foundation pile, make its position on model with mouthful in identical, place implant abutment, its both wings link to each other with the retainer attachment cap, and welding is fixed it, finish the making of the foundation pile of implantation body's band retainer attachment cap; The superstructure of making implant denture on foundation pile.When wearing tooth fixedly implantation body be threaded with the tooth implant body with the core body lower end that is connected of foundation pile, the foundation pile that will be connected with the retainer attachment cap then is connected with the upper end of core body, the retainer attachment cap is enclosed within on the retainer that is reserved in the oral cavity and bonding, it is damaged promptly to repair patient's tooth.

This invention is exactly a method of not having hat cover fixed bridge by adopting, design and produce out and be fit to manual tooth planting's body that Dental Implant is repaired, improve the implant abutment structure, overcome the deficiency in the treatment of Dental Implant, implant denture and adjacent teeth are connected,  power is scattered in adjacent teeth, reduces the pressure of Dental Implant, improve the success rate of implantation of tooth alveolar bone.Simultaneously, do not combine with tooth implant owing to there is hat cover fixed bridge, having overcome does not have the problem of axially rotating in hat cover fixed bridge near, far away in application yet.

The beneficial effect of this invention is that tooth implant all links to each other closely with alveolar bone and adjacent teeth, can disperse the suffered  power of implantation body preferably, has also overcome the unusual rotation of tooth implant etc. simultaneously, has prolonged its service life.Zoopery and clinical practice results suggest, the Dental Implant method of this invention is in the process of repairing absence of tooth, near, late result observation by postoperative January-December, estimate indication and comprise gingival hemorrhage index, loosening degree index, X line tooth sheet indication etc., adopt the multiplicity legal system to make the index accepted of Dental Implant success standard, the Dental Implant success rate of phase section when observing each, found that in the late result, fixedly the success rate of bridge-type tooth implant is apparently higher than matched group (P＜0.05) not have the hat cover, and its concrete testing result is as shown in the table.

Table: do not have the fixedly success rate of bridge-type tooth implant (%) of hat cover

The Dental Implant postoperative
The Dental Implant postoperative						January	February	March	June	JIUYUE	December
There is not fixedly bridge-type Dental Implant general planting tooth matched group of hat cover	100 100	100 100	100 96.2	100 86.0	98.0 80.4	January	February	March	June	JIUYUE	December	98.0 ^* 62.8

^*Compare P＜0.05 with matched group

Description of drawings

Below in conjunction with drawings and Examples this invention is further specified.

Fig. 1 is the structural representation of this invention.

Fig. 2 is that the X of retainer among Fig. 1 is to view.

Fig. 3 is that the Y of retainer among Fig. 1 is to view.

Fig. 4 is the A-A cutaway view among Fig. 1.

Fig. 5 is the B-B cutaway view among Fig. 1.

Fig. 6 is the C-C cutaway view among Fig. 1.

Fig. 7 is the D-D cutaway view among Fig. 1.

Fig. 8 is the E-E cutaway view among Fig. 1.

Fig. 9 is the F-F cutaway view among Fig. 1.

Figure 10 is another embodiment of this invention.

1.1. retainer among the figure, 2. retainer attachment cap, the 3. wing on the implant abutment, 4. implant abutment, the 5. core body that is connected of implantation body and foundation pile, 6. implantation body's body.

The specific embodiment

In the embodiment that accompanying drawing provides, do not have the hat cover fixedly the body 6 of bridge-type manual tooth planting body connect by being connected core body 5 with foundation pile 4, the lower end that wherein connects core body is threaded with implantation body body 6, on it and foundation pile 4 grafting.Body 6 is to be convenient to clinical manipulation with foundation pile 4 by the benefit that is connected core body 5 connected modes.

In the Dental Implant repair process, after the body 6 of implantation body heals with the alveolar bone that lacks tooth, on disappearance tooth adjacent teeth, be equipped with tooth, retainer 1 is bonding with it, get a mouthful interior former then, make the formpiston of oral cavity denture again, on formpiston, place retainer attachment cap 2, fixedly implantation body and foundation pile is connected core body 5, make its position on model with mouthful in identical, the placement implant abutment 4, its both wings 3 link to each other with retainer attachment cap 2, after the welding, the superstructure of making implant denture on foundation pile.Wear tooth at last, the reparation patient's tooth is damaged.

Figure 10 is another embodiment of this invention, when patient's absence of tooth is too much, can increase the number of tooth implant, to strengthen maintenance, causes becoming flexible in case the suffered  power of adjacent teeth is excessive.Concrete operation method is the same, in the Dental Implant repair process, choose a plurality of implantation bodys, make the alveolar bone healing of body 6 with the disappearance tooth of implantation body, still on disappearance tooth adjacent teeth, be equipped with tooth afterwards, retainer 1 is bonding with it, get a mouthful interior former then, make the formpiston of oral cavity denture again, place retainer attachment cap 2 on formpiston, fixedly implant abutment 5, make its position on model with mouthful in identical, place implant abutment 4, the length of regulating its both wings 3 makes the both wings adjacent with adjacent teeth link to each other with retainer attachment cap 2, and welding, the both wings that foundation pile and foundation pile are adjacent are interconnection, welding afterwards, the superstructure of making implant denture on the foundation pile outside.Wear tooth at last, the reparation patient's tooth is damaged.

Claims

1, a kind of nothing hat overlaps fixedly bridge-type manual tooth planting body, the foundation pile (4) that tooth implant comprises body (6) and is attached thereto, it is characterized in that: have both wings (3) on the foundation pile, every wing or link to each other with retainer by retainer attachment cap (2), or be connected with the wing on another foundation pile.

2, a kind of do not have a fixedly manufacture method of bridge-type manual tooth planting body of hat cover, and it is characterized in that: method comprises: make the oral cavity former, include in this former with prepare after the position of the bonding retainer of adjacent teeth; Make the formpiston of oral cavity denture again, on formpiston, place the retainer attachment cap, the fixing core body that is connected of implantation body and foundation pile, make its position on model with mouthful in identical, place implant abutment, its both wings link to each other with the retainer attachment cap, and welding is fixed it, finish the making of the foundation pile of implantation body's band retainer attachment cap; The superstructure of making implant denture on foundation pile.

3, nothing hat according to claim 1 overlaps fixedly bridge-type manual tooth planting body, it is characterized in that: the body of manual tooth planting's body (6) connects by being connected core body (5) with foundation pile (4), the lower end that wherein connects core body is threaded with implantation body's body (6), pegs graft with foundation pile (4) in its upper end.