CN210472310U

CN210472310U - Adaptive full-crown retainer and movable denture comprising retainer

Info

Publication number: CN210472310U
Application number: CN201920801976.7U
Authority: CN
Inventors: 璧典寒; 赵亮
Original assignee: Aviation General Hospital
Current assignee: Aviation General Hospital
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-05-08
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a full crown retainer of adaptability, include by outer porcelain layer, metal level and the face facing layer of organizing to interior, the metal level includes bearing district, retention district and edge closed zone, the bearing district be used for with abutment top direct contact, retention district inboard through organizing face facing layer and abutment lateral part contact, edge closed zone be used for with the abutment root closely laminate. The inner side edge of the metal layer bearing area is provided with a conical inclined plane structure. The tissue surface lining layer is made of composite resin materials. An removable denture comprising the retainer is also disclosed. The utility model discloses the retainer has cancelled the design of present sleeve crown inner crown, increases and organizes a facing layer, directly is used for the abutment outside to through the setting to metal level inner structure, obtain good retention power. Meanwhile, the retainer can be adjusted at any time according to the disease change of the affected teeth, and is particularly easy for later maintenance. The adaptive full-crown retainer has the advantages of wide adaptive disease range, good aesthetic degree, good comfort, low cost and long service life.

Description

Adaptive full-crown retainer and movable denture comprising retainer

Technical Field

The utility model relates to an oral medical treatment technical field especially relates to an adaptability full crown fixing body and including removable denture of this fixing body.

Background

At present, for the loose teeth, especially for most loose teeth caused by periodontal diseases, the common method is to bond and fix the teeth by resin to form a so-called periodontal splint or to use a porcelain crown for fixation and repair. For patients with dentition defect, the sleeve crown false tooth repair can also be carried out. However, in the above method, the resin bonded and fixed tooth has poor appearance, poor comfort and poor hygiene, and is generally used only as a stepwise treatment means. Porcelain crown-combined fixed restoration also has poor hygiene, and because of relying on dentition support only, is not favorable for the prognosis of abutment periodontitis, and once the abutment needs tooth extraction, all the restoration needs to be removed. While the collet crown denture is recognized as a currently suitable method for repairing the dentition defects with loose teeth, it also has its disadvantages: the prosthesis is divided into an inner crown and an outer crown, the manufacturing process is complex, the technical requirement is high, the economic burden of a patient is heavy, and the prosthesis is difficult to adjust according to the disease change of the affected teeth after the manufacturing is finished.

Therefore, it is obvious that the above-mentioned conventional denture repairs for loose teeth still have inconveniences and defects, and further improvement is needed. How to create a new adaptive full crown retainer, which has the advantages of simple structure, good comfort, good appearance, long service life, simple and convenient manufacturing process, low cost, easy later maintenance and adjustment and wide adaptability, and becomes the object of great improvement in the industry at present.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an adaptability full crown retainer, make its simple structure, travelling comfort good, the outward appearance good, long service life, the preparation technology is simple and convenient, and is with low costs, and easy later maintenance and adjustment, adaptability is wide to overcome current prosthetic not enough of artificial tooth.

In order to solve the technical problem, the utility model provides a full crown of adaptability retainer, include by outer porcelain layer, metal level and the face facing layer of organizing to interior, the metal level includes bearing district, retaining district and edge closed region, the bearing district is used for with abutment top direct contact, the retaining district is inboard to be passed through face facing layer of organizing contacts with the abutment lateral part, edge closed region is used for closely laminating with the abutment root.

In a further improvement, the inner side edge of the metal layer bearing area is provided with a conical inclined plane structure.

Further improved, the inclination angle of the conical inclined plane structure is 10-80 degrees.

In a further improvement, the inner side of the edge sealing area is provided with a convex edge which is in contact with the tissue surface lining layer, and the tissue surface lining layer and the convex edge are in surface smooth transition.

Further improved, the tissue surface lining layer is made of composite resin materials, and the coating thickness of the composite resin is adjustable.

The ceramic layer is made of composite resin, and the metal layer is made of medical cobalt-chromium alloy.

The utility model discloses still provide an artificial tooth including above-mentioned adaptability full crown retainer, the artificial tooth still include with the big connector that adaptability full crown retainer connects.

The adaptive full crown retainer is welded with the large connector through a metal cross rod. Alternatively, the adaptable full crown retainer is welded to the large connector by a metal lingual or palatal sidewall. Alternatively, the plurality of adaptive full crown retainers and the large connecting body are integrally cast.

After adopting such design, the utility model discloses following advantage has at least:

the utility model discloses full crown retainer of adaptability has cancelled the inner crown design of current sleeve crown based on the improvement of sleeve crown artificial tooth, and the inside tissue face of crown directly is used for the abutment outside through increasing tissue face lining layer outside current sleeve crown to through the setting to metal level inner structure, and select to the compound resin of tissue face lining layer, in order to reach the purpose that obtains good solid power. Meanwhile, the retainer and the removable denture comprising the retainer can be adjusted at any time according to the state of illness of the affected tooth, the tissue surface lining layer of the retainer can be adjusted, the abutment can be adjusted, the later maintenance is particularly easy, and the retainer has the advantages that other retainers cannot be provided.

The adaptive full-crown retainer has the advantages of wide adaptive disease range, good aesthetic degree, good comfort, low cost and long service life. In the aspects of manufacturing process and cost, the manufacturing period is short, the processing of a technician room is not complex, and the method is obviously superior to the sleeve crown false tooth. In addition, the chair-side operation of the retainer has low technical requirements, can be considered as an auxiliary treatment measure for periodontal diseases, plays a role of a periodontal splint, improves the appearance of the affected teeth and improves the confidence of the patient.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic axial cross-sectional structure of the adaptive full crown retainer of the present invention.

Detailed Description

Referring to fig. 1, the Adaptive Crown Retainer (ACR) retainer of the present embodiment includes a ceramic layer 1, a metal layer 2 and a tissue facing layer 3 from the outside to the inside.

The porcelain layer 1 is completely sleeved on the outer layer of the metal layer 2 and is fixedly connected with the metal layer 2. The porcelain layer 1 is made of composite resin materials such as polymer porcelain, and can be partially or completely deficient according to the attractive appearance and occlusion design.

The metal layer 2 is made of medical cobalt-chromium alloy and the like, and has the functions of supporting and retaining. Specifically, the metal layer 2 in this embodiment includes a load bearing region a, a retention region b, and an edge sealing region c. The bearing area a is used for directly contacting with the top end of the abutment and bearing the pressure of occlusion and chewing. The inner side of the retention area b is contacted with the lateral part of the abutment through the tissue surface coating layer 3, and plays the role of retention and support. The edge sealing area c is tightly attached to the root of the abutment to seal the abutment, so that food residues are prevented from entering the retainer and the attractiveness is improved.

In a preferred embodiment, the inner edge of the load-bearing area a of the metal layer 2 is provided with a conical ramp structure 4. The inclination angle of the conical inclined plane structure 4 is 10-80 degrees, and the specific inclination is adjusted according to the tooth position and the common positioning path. Thus, the conical inclined surface is matched with the abutment, so that the retainer can bear vertical and horizontal chewing pressure, and the stress borne by the tissue lining layer is reduced.

The inner side of the edge closed area c is provided with a convex edge 5 connected with the tissue surface covering layer 3, and the tissue surface covering layer 3 is smoothly transited with the surface of the convex edge 5. The structure can ensure that the retainer and the abutment have better fitting property and stability.

In this embodiment, the tissue surface lining layer 3 is made of a composite resin material, and the coating thickness of the composite resin can be adjusted according to actual conditions, so that the retainer has good adaptability.

When the adaptive full crown retainer is used for an active denture, the active denture further comprises a large connecting body connected with the adaptive full crown retainer. The specific connection mode can be as follows: the metal cross rod is welded with the large connector, or the metal tongue or the palate side wall is welded with the large connector, and the large connector can also be integrally cast with a plurality of adaptive full-crown retainers, and the method is determined according to actual conditions.

The movable denture manufacturing process based on the ACR retainer comprises the following steps:

(1) selecting an abutment, designing a removable denture, and performing root canal treatment or periodontal treatment on the abutment;

(2) preparing an abutment tooth body, taking an impression and pouring a plaster model;

(3) preparing a metal layer of the ACR retainer by a lost wax casting method or a cutting method in a technician room;

(4) trying a metal layer of the ACR retainer in clinic, taking a model after the metal layer is in place, and taking an occlusion relation;

(5) the method comprises the following steps that a technician room is used for manufacturing a large connector and ACR retainers, composite resin is coated on the tissue surface of the ACR retainers to form a tissue surface lining layer, and the ACR retainers are connected with the large connector;

(6) the movable denture based on the ACR retainer is clinically tried on, the retainer or the abutment is adjusted and abraded, regular return visits are made, and the retainer tissue facing layer or the abutment is adjusted as required, so that the movable denture based on the ACR retainer is manufactured and used.

The ACR retainer is suitable for repairing the dentition defects of 1 and 2 types in Kennedy classification. The removable denture based on ACR fixture can be used for repairing residual teeth with tooth loosening of 2 degrees or more caused by periodontitis or with obvious factors adverse to the long-term prognosis of moderate and severe periodontitis, although the loosening degree is less than 2 degrees and can not be influenced by Kennedy classification. The ACR retainers are also considered as one of the means for treating periodontal disease.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.

Claims

1. The utility model provides a full crown retainer of adaptability which characterized in that includes by outer porcelain layer, metal level and the face facing layer of organizing to interior, the metal level includes bearing area, retaining area and marginal closed zone, bearing area is used for with abutment top direct contact, the retaining area is inboard to be passed through face facing layer of organizing contacts with the abutment lateral part, marginal closed zone is used for closely laminating with the abutment root.

2. The adaptable full crown retainer of claim 1, wherein the inboard edge of the metal layer load bearing area is provided as a conical ramp structure.

3. The adaptable full crown retainer of claim 2, wherein the conical ramp structure is inclined at an angle of 10-80 degrees.

4. The adaptable full crown retainer of claim 2, wherein the inside of the edge closure zone is provided with a ledge in contact with the tissue facing layer, the tissue facing layer having a smooth transition with the ledge surface.

5. The adaptable full crown retainer of any one of claims 1 to 4, wherein the tissue facing layer is made of a composite resin material and the coating thickness of the composite resin is adjustable.

6. The adaptable full crown retainer of claim 5, wherein the porcelain layer is formed of a composite resin material and the metal layer is formed of a medical cobalt chrome alloy material.

7. An active denture comprising the adaptive full crown retainer of any one of claims 1 to 6, further comprising a macro-junction coupled to the adaptive full crown retainer.

8. The removable denture of claim 7, wherein said compliant full crown retainers are welded to said large connectors by metal cross bars.

9. The removable denture of claim 7, wherein said compliant full crown retainer is welded to said large connector by a metallic lingual or palatal side wall.

10. The removable denture of claim 7, wherein a plurality of said compliant full crown retainers are integrally cast with said large interface.