The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)
- Volume 27 Issue 2
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- Pages.143-154
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- 1989
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
A Study on Mandibular Opening and Closing Movements at Mandibular incisor region and Clinical Rest Position
하악 전치부의 개폐운동과 안정위에 관한 연구
- Ahn, Seung-Geun (Department of Dentistry, College of Dentistry, Graduate School, Chonbuk National Unviersity) ;
- Song, Kwang-Yeob (Department of Dentistry, College of Dentistry, Graduate School, Chonbuk National Unviersity) ;
- Park, Charn-Woon (Department of Dentistry, College of Dentistry, Graduate School, Chonbuk National Unviersity)
- Published : 1989.12.01
Abstract
The purpose of this study was to investigate the mandibular opening and closing movements at mandibular incisor region and clinical rest position in normal subject using the newly developed electric mandibular movement analyzing device, (M.K.G.-K6 diagnostic system, Myo-tronics Inc. Seattle, WA, U.S.A.) The 58 normal subjects, who were students of the College of Dentistry, Chonbuk National University, were selected according to sampling criteria. The obtained results were as follows: 1. There was no significant difference of distribution of opening and closing movement patterns at mandibular incisor region between male and female. There was significant difference between habitual and maximum movement patterns both in sagittal and frontal plane. 2. Although the percentage of distribution of crossover pattern was highest in all cases, but there were significant differences between patterns only at habitual opening and closing movement in sagittal plane. 3. The mean of maximum opening was
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