Preparation process of pure titanium bridge denture

Abstract

The invention discloses a preparation process of a pure titanium bridge denture and relates to the technical field of production of complete dentures. The preparation process sequentially comprises the following steps: taking a model through occlusion by a patient; scanning the plaster model by a three-dimensional scanner to obtain target denture shape data; processing the denture shape data withCAD software and completing bridge design; cutting a titanium cake at high speed by machining to form a pure titanium bridge, and arranging abutment teeth on the pure titanium bridge; forming screw fixing holes in the pure titanium bridge; detecting the size of the pure titanium bridge; carrying out plastic fusion on the pure titanium bridge to form plastic fusion teeth; and producing gums on theplastic fusion teeth and the pure titanium bridge to form the pure titanium denture. Aiming at the problem that a pure titanium bridge in the prior art affects a following implantation process due toexistence of casting stress, the preparation process effectively avoids the problem of existence of casting stress in the bridge in a model taking and machining manner, meanwhile, the production speedis increased and the machining cost is reduced by a plastic fusion technology.

Description

technical field [0001] The invention relates to the technical field of complete denture production, more specifically, it relates to a preparation process of a pure titanium bridge denture. Background technique [0002] For most elderly people who often have the problem of losing all the teeth in their mouths, hospitals usually adopt a full restoration method to make complete dentures to help patients restore their oral chewing function. [0003] For the existing preparation technology of pure titanium bridge dentures, the pure titanium bridge is usually processed by casting integral molding, and then porcelain is fired on the pure titanium bridge, and the firmness of the porcelain is ensured by testing the gold-ceramic bonding. During the casting process of metal titanium, its interior is affected by thermal expansion and contraction, and has a certain stress, which leads to a certain deviation between the manufactured denture and the originally designed size. When the comp...

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Problems solved by technology

[0004] Aiming at the problem in the prior art that there is casting stress in the pure titanium bridge, which affects the subsequent planting process, the purpose of the present invention is to provide a pure titanium bridge denture preparation process, which can effectively avoid the casting stress in the pure titanium bridge and facilitate the integration of pure titanium bridge and Implants are passively seated, thereby improving implant accuracy and firmness

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