Broken-stress attachment denture

Abstract

The invention belongs to the field of oral treatment denture, and particularly discloses broken-stress attachment denture. The denture comprises a base provided with artificial teeth, wherein a broken-stress attachment connected with an abutment tooth is arranged on the base, and comprises an attachment positive part and an attachment negative part which are made of Vitallium 2000 plus Co-Cr-Mo alloy; a main connecting hole is formed in the tail end of the attachment negative part; a press head used for extruding the middle part of the attachment negative part is arranged at the front end part of the attachment positive part; a main connecting head matched with the main connecting hole is arranged on the attachment positive part; the buffer gap between the main connecting head and the main connecting hole is 0.3-0.5mm; and the friction coefficient at the contact part between the press head and the attachment negative part is 0.25-0.35. After the attachment denture is arranged on the abutment tooth, the bite force generated by chewing foods vertically acts on the attachment negative part, and the problem that the abutment tooth connected with the denture is separated due to the bite force can be solved.

Description

technical field [0001] The invention relates to the field of dental treatment dentures, in particular to a stress-interrupted attachment denture. Background technique [0002] Explanation of technical terms in this background technology: "denture" refers to false teeth. "Caries" means tooth decay. "Periodontal disease" refers to the disease that occurs in the tooth supporting tissue, and the disease includes two categories: gingival disease involving only gingival tissue and periodontitis involving deep periodontal tissue (periodontal ligament, alveolar bone, cementum) . The professional name of "movable denture" is removable denture, including removable partial denture and complete denture. Removable dentures use the remaining natural teeth, the mucosa and bone tissue under the base as support, rely on the retainer of the denture and the base for retention, use artificial teeth to restore the shape and function of the missing tooth, and use the base material to restore t...

AI Technical Summary

Problems solved by technology

[0006] One end of the anode buckle 131 is fixed on the abutment tooth 140, and the other end is usually in a suspended state. The anode buckle 131 is a cantilever beam structure model. If the anode buckle 131 is in full contact with the periodontal tissue, it will be difficult to install. When installing on the tooth 140, it is very likely that the anode buckle 131 will squeeze the periodontal tissue, and the periodontal tissue will be crushed

After the artificial tooth 110 is stressed, it transmits the force to the base 120. At this time, the base 120 moves downward as a whole, and the socket part presses the plug 133 downward, and the force is transmitted to the plug 133. At this time, the anode buckle 131 The fixed end will generate a vertical upward thrust to the corresponding abutment tooth 140. Under the action of this thrust, the abutment tooth 140 will loosen to a certain extent, causing the abutment tooth 140 to fall off, which in turn leads to the failure of the denture restoration.

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