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Denture, denture manufacturing method and device

A denture and stress technology, applied in the field of dentures, denture manufacturing methods and devices, can solve the problems of non-physiological excessive wear of natural jaw teeth, affecting long-term use effects, etc.

Active Publication Date: 2021-08-17
PEKING UNIV SCHOOL OF STOMATOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, medium and long-term clinical observations have found that due to the dense, homogeneous structure of zirconia with high hardness and high wear resistance, the problem of non-physiological excessive wear of the natural teeth of the opposing jaw is very serious
Excessive wear will cause serious diseases such as trauma to the opposing teeth, occlusal trauma, and temporomandibular joint disorders, which will affect the long-term use effect

Method used

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  • Denture, denture manufacturing method and device
  • Denture, denture manufacturing method and device
  • Denture, denture manufacturing method and device

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Embodiment Construction

[0046] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0047] A sectional view of an embodiment of the denture of the present invention is as figure 1 shown. Among them, the functional wear layer 1 is located on the surface of the occlusal surface of the denture, and has a dense structure; the stress relaxation layer 2 is located below the functional wear layer, and the area marked by the oblique line has a porous structure. During the chewing process of the patient, the part of the functional wear layer 1 subjected to a force exceeding a predetermined threshold will be deformed, the supporting part of the porous structure in the stress relaxation layer will be broken, and the space of the stress relaxation layer 2 will be compressed.

[0048] Modern denture design and manufacturing technology can be traced back to the beginning of the last century. Dr. William introduced...

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Abstract

The invention provides a denture, a denture manufacturing method and a device. The denture comprises: a functional wear layer (1) located on the surface; and a stress relaxation layer (2) with a porous structure located below the function wear layer (1). This kind of denture can be adaptively adjusted during use to avoid trauma to the opposing teeth, occlusal trauma, and temporomandibular joint disorders.

Description

technical field [0001] The invention relates to the field of stomatology, in particular to a denture, a denture manufacturing method and a device. Background technique [0002] When people chew, the upper and lower teeth will form a pair of special wear pairs, that is, tooth wear pairs. Under the control of the central nervous system, the masticatory muscles are used as the driving force and the occlusal procedure is used as a program to carry out the chewing cycle (average 900-1000 times / meal) to complete the complex chewing function. The contact mode of the upper and lower teeth is mainly friction and collision, and the corresponding wear types are abrasive wear and fatigue wear. The two wear modes occur alternately, coupling and strengthening each other. Using three-dimensional imaging technology to measure the amount of enamel wear in the oral cavity, it was found that the enamel wears at an average rate of 20-48 μm / year. From the establishment of occlusion (about 12 y...

Claims

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Application Information

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IPC IPC(8): A61C13/09
CPCA61C13/09
Inventor 孙玉春周永胜王勇陈科龙戴宁李榕叶红强陈虎
Owner PEKING UNIV SCHOOL OF STOMATOLOGY