Design of the temporomandibualr joint pressure-measuring apparatus

doi:10.3877/cma.j.issn.1674-1366.2008.03.007

Abstract

Abstract:

Objective

To develop a testing system for intra-articular pressure and to evaluate its clinically application. Fluctuationg curve of the intra-articular pressure in temoromandibular joint was also investigated.

Methods

The system composed of hardware and software. The hardware included a physiological pressure transducer， a signal amplifier， an A/D conversion card and a personal computer. The software consisted of modules for real time data collection， storage， analysis， display， hardware quality test. The performance of this system was compared with that of the former used device （Biological collection system， RM6000）.

Results

The deviation between the two systems showed no statistical significance （P=0.344）. However，the difference of precision was statistically significant （P=0.039）. The precision of the present system was better than that of RM-6000.

Conclusions

The newly developed computer-aid system can detect and display the variety of synovial fluid pressure. The evaluation indicated that the system is easily handled and the stabilization， sensitivity and differentiability are reliable.

Key words: Temporomandibular joint, Intra-articular pressure, Traction, Surgical instruments

Yue XU, Zuan-guang CHEN, Zhi-guang ZHANG, You-hua ZHENG. Design of the temporomandibualr joint pressure-measuring apparatus[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2008, 02(03): 245-248.

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URL: https://zhkqyxyjzz.cma-cmc.com.cn/EN/10.3877/cma.j.issn.1674-1366.2008.03.007

https://zhkqyxyjzz.cma-cmc.com.cn/EN/Y2008/V02/I03/245

标准值（mmHg）	颞下颌关节内压测量系统		RM-6000
标准值（mmHg）	相对误差均数	全距	相对误差均数	全距
1.00	-3.66E-02	0.03	-5.00E-02	0.36
2.00	-7.33E-02	0.09	3.33E-03	0.17
3.00	7.33E-02	0.18	3.33E-03	0.12
4.00	1.58E-02	0.07	-4.17E-03	0.07
5.00	-9.33E-03	0.04	-4.00E-03	0.07
6.00	-1.28E-02	0.04	-1.72E-02	0.06
7.00	-2.86E-02	0.01	-2.19E-02	0.06
8.00	-1.25E-03	0.01	-1.92E-02	0.05
9.00	-1.19E-02	0.01	-2.48E-02	0.07
10.00	-1.33E-03	0.01	-4.87E-02	0.05

标准值（mmHg）	颞下颌关节内压测量系统		RM-6000
标准值（mmHg）	相对误差均数	全距	相对误差均数	全距
1.00	-3.66E-02	0.03	-5.00E-02	0.36
2.00	-7.33E-02	0.09	3.33E-03	0.17
3.00	7.33E-02	0.18	3.33E-03	0.12
4.00	1.58E-02	0.07	-4.17E-03	0.07
5.00	-9.33E-03	0.04	-4.00E-03	0.07
6.00	-1.28E-02	0.04	-1.72E-02	0.06
7.00	-2.86E-02	0.01	-2.19E-02	0.06
8.00	-1.25E-03	0.01	-1.92E-02	0.05
9.00	-1.19E-02	0.01	-2.48E-02	0.07
10.00	-1.33E-03	0.01	-4.87E-02	0.05

1	Jeffrey P. Okeson Management of temporomandibular disorders and occlusion. 5th edition. St. louis： Mosby， 2003：151.
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