CN105699221A

CN105699221A - Multi-posture implanted tooth testing device capable of simulating tooth occlusion

Info

Publication number: CN105699221A
Application number: CN201610168100.4A
Authority: CN
Inventors: 马跃; 王洪福; 张伟; 孙清超; 高岩
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2016-03-23
Filing date: 2016-03-23
Publication date: 2016-06-22
Anticipated expiration: 2036-03-23
Also published as: CN105699221B

Abstract

The invention relates to a multi-posture implanted tooth testing device capable of simulating tooth occlusion and belongs to the field of oral medical equipment. The testing device is composed of an L-shaped machine platform, an upper jaw module, a lower jaw module, four three-directional force sensors, five linear drivers, a stand column, a joint bearing and a small shaft. In the device, one end of the fourth linear driver and one end of the fifth linear driver are hinged to a bottom plane of the L-shaped machine platform, and the other ends of the fourth linear driver and the fifth linear driver are hinged to a bottom surface of the lower jaw module; the stand column is fixed on the bottom plane of the L-shaped machine platform; the stand column is connected with the lower jaw module through the joint bearing; the joint bearing is connected to the rear side face of the lower jaw module through the small shaft. One end of the first linear driver, one end of the second linear driver and one end of the third linear driver are hinged to the side face of the L-shaped machine platform, and the other ends of the first linear driver, the second linear driver and the third linear driver are hinged to the top surface of the upper jaw module and the rear end side face of the upper jaw module respectively. The testing device can be used for testing and evaluating properties of an implanted tooth under the action of a multi-posture tooth occlusion force, and has the characteristics that a multi-posture occlusion manner is simulated, the testing efficiency is high and the like.

Description

A kind of multi-pose Dental Implant test device simulating dental articulation

Technical field

The invention belongs to stomatology apparatus field, relate to a kind of multi-pose Dental Implant test device simulating dental articulation。

Background technology

Dental implant refer to a kind of by implant support based on the substructure in osseous tissue, the agomphosis repair mode of maintenance top dental case, it it is attract people's attention most in 20th century stomatology history one big technical development, revolutionize the support maintenance pattern of tradition dentures repai, it is achieved that artificial tooth is combined with biological, the mechanicalness of jawbone。Typical case's plantation dental structure includes the support implantation body of bottom and the dental case two parts on top, and implantation body is made up of body, cervical region, base station。After the implantation of Dental Implant during long service, Dental Implant can bear the load of the various complexity of oral environment, such as gmatjpdumamics, occlusal contact area, occlusal position difference etc., it is possible to the body of implantation body can be caused to get loose, cervical region ruptures, base station rotates or gets loose, dental case comes off destruction etc. failure conditions。So in the research and development and production of Dental Implant, reply Dental Implant carries out testing and evaluates, it is engaged under environment at Mouthsimulator and its performance is analyzed, be conducive to improving the quality control system that Dental Implant is researched and developed, the military service phase of prolongation Dental Implant。

The apparatus and method now Dental Implant performance tested are but without standardization, and current Chinese scholars mostly adopts dynamic load to put on Dental Implant FEM (finite element) model and emulates, and the performance of Dental Implant is evaluated。In addition article<Identificationoffailuremechanismsinretrievedfracturedden talimplants>(Shemtov-YonaK, RittelD.Identificationoffailuremechanismsinretrievedfrac tureddentalimplants.EngineeringFailureAnalysis, 2014,38:58-65.) adopting scanning electronic microscope observation Dental Implant fracture, it is proposed to fatigue failure is the main cause of Dental Implant mechanical failure。Article<Bonedefectdetectionondentalosseointegrationusingstructur almodeshape>(HsiehY-Sh, ChenJ-Z, ChenCh-S, etal. [J] .ProceedingsoftheASME2012InternationalDesignEngineeringT echnicalConferences&ComputersandInformationinEngineering Conference, 2012, 201-205.) detect the defect between Dental Implant and jawbone by the resonant frequency and mode testing structure, but only test Dental Implant and the failure mode being connected between jawbone, the not performance of Dental Implant under detection load。Existing method can not meet performance Dental Implant being engaged under load and carries out testing and evaluate with technological means。

Summary of the invention

It is an object of the invention to overcome the deficiencies in the prior art, invent a kind of test device simulating the multi-pose occlusion of true oral cavity, to solve the problem different from Dental Implant force environment that test Dental Implant performance exists at present。In order to achieve the above object, the multi-pose Dental Implant test device of the simulation dental articulation of present invention design is with board for platform, Linear actuator through being hinged on board has worked in coordination with multi-pose occlusion mode, occlusal surface at upper and lower jaw is equipped with three-dimensional force transducer, the size and Orientation of test gmatjpdumamics。Medical Dental Implant performance under multi-pose occlusion stress can be carried out testing and evaluate by test device, has simulation multi-pose occlusion mode, testing efficiency high。

The technical solution used in the present invention is a kind of multi-pose Dental Implant test device simulating dental articulation, it is characterized in that, test device is made up of L-type board, upper and lower jaw module, four three-dimensional force transducers, five Linear actuators, column, oscillating bearing and little axle；

Test device concrete structure is as follows: in device, one end of the four, the 5th Linear actuators 11,12 is hinged on L-type board 1 baseplane, the other end is hinged on lower jaw module 2 bottom surface, column 10 is fixed on L-type board 1 baseplane, column 10 adopts oscillating bearing 9 to be connected with lower jaw module 2, and oscillating bearing 9 is connected on the trailing flank of lower jaw module 2 by little axle 15；First, second, third Linear actuator 6,7,8 one end is hinged on L-type board 1 side, and the other end is respectively hinged on end face and the side, maxillary module rear end of maxillary module 5；The first, the 3rd three-dimensional force transducer 3,13 is separately mounted on the end face of lower jaw module 2, and the second, the 4th three-dimensional force transducer 4,14 is separately mounted on the bottom surface of maxillary module 5；Lower jaw module 2 end face is curve form, and the bottom surface of maxillary module 5 is curve form；First Linear actuator 6 is made up of moving lever 6a and fixed body 6b, and moving lever 6a is arranged in fixed body 6b, and the structure of the first, second, third, fourth, the 5th Linear actuator 6,7,8,11,12 is identical with the structure of the first Linear actuator 6。

The invention has the beneficial effects as follows and can change gmatjpdumamics, occlusal contact area, occlusal position etc. by adjustment test device, be engaged mode with Mouthsimulator multi-pose；Can testing and evaluate the various failure conditions that Dental Implant produces in-service, the research for Dental Implant provides a kind of practicable means of testing。

Accompanying drawing explanation

Fig. 1 is the perspective view of the present invention, and Fig. 2 is the topology view of the lower jaw module of the present invention, and Fig. 3 is the Linear actuator frame for movement view of the present invention。Wherein, 1 L-type board, 2 lower jaw modules, 3 first three-dimensional force transducers, 4 second three-dimensional force transducers, 5 maxillary modules, 6 first Linear actuators, 6a moving lever, 6b fixed body, 7 second Linear actuators, 8 third linear drivers, 9 oscillating bearings, 10 columns, 11 the 4th Linear actuators, 12 the 5th Linear actuators, 13 the 3rd three-dimensional force transducers, 14 the 4th three-dimensional force transducers, 15 little axles。

Detailed description of the invention

The detailed description of the invention of the present invention program is described in detail below in conjunction with accompanying drawing and technical scheme。Accompanying drawing 1 is the perspective view of the present invention, and device is made up of L-type board, upper and lower jaw module, four three-dimensional force transducers, five Linear actuators, column, oscillating bearing and little axle。Structure and the operation principle of test device are as follows:

In test device, fourth, fifth Linear actuator 11,12 one end is hinged on L-type board baseplane, and the other end is hinged on bottom surface, lower jaw module both sides, and hinged installation direction makes swaying direction vertical with the axis of symmetry of lower jaw module；Column 10 is fixed on L-type board 1 baseplane, and column 10 adopts oscillating bearing 9 to be connected with little axle 15, and little axle 15 is fixed on side, lower jaw module rear end；Oscillating bearing allows the rotation of certain angle, and the attitude of fourth, fifth Linear actuator corrdinated adjustment lower jaw, enable lower jaw module up and down, vacillate now to the left, now to the right。First, second and third Linear actuator 6,7,8 one end is hinged on maxillary module 5, and the other end is hinged on L-type board side, and hinged direction makes swaying direction parallel with the axis of symmetry of maxillary module, is fitted to each other and maxillary can be made to move forward and backward, swing up and down。The structure of lower jaw module as in figure 2 it is shown, the structure of Linear actuator as shown in Figure 3。

Moving lever 6a in first Linear actuator 6 has stretched the opening and closing up and down of maxillary module 5 in fixed body 6b；First Linear actuator 6 and second and third Linear actuator 7,8 synchronization telescope complete the front and back adjustment of maxillary module 5；Fourth, fifth Linear actuator 11,12 synchronization telescope completes the opening and closing up and down of lower jaw module 2, and a Linear actuator is upheld another and shunk and can be engaged Mouthsimulator one side。Maxillary module 5 can be engaged mode by Mouthsimulator multi-pose with the combination of lower jaw module 2 attitude。Upper and lower jaw module can install the bone material implanting Dental Implant, utilizes three-dimensional force transducer to measure the size and Orientation of gmatjpdumamics。The control system adjusting Linear actuator can change the speed of Linear actuator and the size of power, and then changes the size of Dental Implant occlusion frequency and power。Linear actuator moves back and forth and is back and forth engaged simulate Dental Implant, the Breakage Processes of record reciprocal time and Dental Implant, for testing the performance of Dental Implant under multi-pose gmatjpdumamics effect。

Claims

1. simulating a multi-pose Dental Implant test device for dental articulation, it is characterized in that, test device is made up of L-type board, upper and lower jaw module, four three-dimensional force transducers, five Linear actuators, column, oscillating bearing and little axle；Four, the 5th Linear actuators (11) in device, (12) one end be hinged on L-type board (1) baseplane, the other end is hinged on lower jaw module (2) bottom surface；Column (10) is fixed on L-type board (1) baseplane, column (10) adopts oscillating bearing (9) to be connected with lower jaw module (2), and oscillating bearing (9) is connected on the trailing flank of lower jaw module (2) by little axle (15)；First, second, third Linear actuator (6,7,8) one end is hinged on L-type board (1) side, and the other end is respectively hinged on end face and maxillary module (5) side, rear end of maxillary module (5)；The first, the 3rd three-dimensional force transducer (3,13) is separately mounted on the end face of lower jaw module (2), and the second, the 4th three-dimensional force transducer (4,14) is separately mounted on the bottom surface of maxillary module (5)；Lower jaw module (2) end face is curve form, and the bottom surface of maxillary module (5) is curve form；First Linear actuator (6) is made up of moving lever (6a) and fixed body (6b), moving lever (6a) is arranged in fixed body (6b), first, second, third, fourth, the structure of the 5th Linear actuator (6,7,8,11,12) is identical with the structure of the first Linear actuator (6), and concrete size is determined by installation site and range of movement。