Dental prosthesis fatigue testing machine

A technology of fatigue testing machine and dental prosthesis, which is applied in the field of fatigue testing machine, can solve problems such as inestimability, lack of experimental basis, fracture, etc., and achieve the effect of reasonable design and simple structure

Inactive Publication Date: 2013-12-25
FOURTH MILITARY MEDICAL UNIVERSITY
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Problems solved by technology

[0002] In the known technical field, the teeth and fixed restorations in the oral cavity will wear and tear under the repeated action of masticatory force. After a long period of accumulation, they may suddenly break due to fatigue stress. The measurement of fatigue life has many positive meanings. In clinical practice, many pa

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  • Dental prosthesis fatigue testing machine
  • Dental prosthesis fatigue testing machine

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 and figure 2 The oral restoration fatigue testing machine shown includes a left side plate 1 and a right side plate 2 which are arranged oppositely, and a fixed bottom plate 3 and a movable bottom plate 3 are respectively arranged at the bottom and the middle of the area between the left side plate 1 and the right side plate 2. The prosthesis test piece platen 4 that moves vertically up and down reciprocatingly, on the sample platen 4, there are two rows of prosthetic test piece mounts 5 evenly arranged in the shape of “one”. An elastic expansion mechanism 7 driven by an eccentric wheel mechanism is provided above the body test piece mounting seat 5, and an elastic telescopic mechanism 7 corresponding to the prosthesis test piece mounting seat 5 is provided at the bottom end of the elastic expansion mechanism 7. The punch 8 wi...

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Abstract

The invention discloses a dental prosthesis fatigue testing machine. The dental prosthesis fatigue testing machine comprises a left side plate and a right side plate which are oppositely arranged, wherein a fixing bottom plate and a prosthesis test specimen bedplate capable of reciprocating in a vertical up and down manner are respectively arranged at the bottom and the middle of a zone between the left side plate and the right side plate; multiple rows of prosthesis test specimen fitting seats are uniformly arranged on the test specimen bedplate in a straight line; an elastic telescoping mechanism driven by an eccentric wheel mechanism is arranged above the prosthesis test specimen fitting seats; plunger chips which correspond to the prosthesis test specimen fitting seats and on which sine wave cyclic loads are applied are arranged at the bottom of the elastic telescoping mechanism. The dental prosthesis fatigue testing machine is simple in structure and reasonable in design; the chewing condition in the mouth cavity of a human body is simulated by applying the principles of a cam mechanism and an eccentric gear mechanism; the dental prosthesis fatigue testing machine is provided with an artificial saliva circulating device with the alternating changeable temperature so as to simulate a humid mouth cavity saliva environment and different temperature variations occurring after taking food and can be used for carrying out scientific fatigue testing on the prosthesis so as to obtain accurate data for clinic reference.

Description

technical field [0001] The invention relates to a fatigue testing machine, in particular to a fatigue testing machine for oral prosthesis. Background technique [0002] In the known technical field, the teeth and fixed restorations in the oral cavity will wear and tear under the repeated action of masticatory force. After a long period of accumulation, they may suddenly break due to fatigue stress. The measurement of fatigue life has many positive meanings. In clinical practice, many patients are very concerned about the service life of restorations, but prosthodontists cannot accurately estimate according to the actual situation due to the lack of corresponding experimental basis. How to simulate the oral environment and perform fatigue tests on restorations is of great significance. important indications. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fatigue testing machine for dental prostheses, which can...

Claims

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Application Information

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IPC IPC(8): G01N3/32
Inventor 陈吉华张少锋郭嘉文李岩张虹云
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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