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KMID : 0377519970220020119
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Chung-Ang Journal of Medicine
1997 Volume.22 No. 2 p.119 ~ p.124
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Analysis on the protrusive movement of mandibule using cmputer-aided axiograph
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Baek Myeong-Hwan
Chung Ho-Kyun
Kang Hong-Ku
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Abstract
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Using axiography, dentists can observe and analyse the mandibular movements three dimensionally. The axiography can also reveal the subclinical arthrophthy in temporomandibular joint. The recent introduction of computer-aided axiography (CADIAX) gives a additional advantage that can display the enlarged diagram of condylar movement tracing so as to diagnose the initial changes of disc displacement more readily. The purpose of this study was to determine the protrusive length of condylar movement in sagittal plane. With the aid of diagnostic computer software, the length of the pathways was measured in 67 patients and the characteristics of curves were analyzed. The observed interquartile ranges of the length of protrusive condylar movement were 7.37-11.33 mm in the right joint and 7.20-10.42 mm in the left joint. The mean values of the protrusive length were 9.57 mm for the right joint and 9.28 mm for the left joint.
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