|
KMID : 0376319930050010085
|
|
Dental Journal of CNU
1993 Volume.5 No. 1 p.85 ~ p.97
|
|
|
RELATIVE POSITION OF MANDIBULAR CONDYLE AND COMPARISON OF REPRODUCIBILITY UTILIZING DIFFERENT CENTRIC RELATION RECORD TAKING METHODS
|
|
Moon Heoung-Youp
Hwang Hye-Nam
|
|
|
Abstract
|
|
|
In the past, the jaw and occlusal relationship in centric occlusion were merely considered in case of orthodontic diagnosis and treatment planning. As the fact that functional disturbance of the temporomandibular joint may be caused by occlusal interference was recognized, the importance of functional occlusion and centric relation is emphasized today.
Known the importance of centric relation, there are various opinions about definition of centric relation and its taking methods.
The purpose of this study was to investigate the relative centric condyle position and to compare the reproducibility of the recordings utilizing different centric relation records obtained by different taking methods. The 15 adults with normal occlusion were participated in this study. Four centic relation records were made by using each of three methods - leaf gauge, Dawson and myomonitor method. Then the relative centric condyle position, the distance between the condylar positions in centric occlusion and in centric relation and the reproducibility were studied using SAM 2 articulator and mandibular position indicator.
The results were as follows;
1. The trend of condyle position was different depending on different centric relation taking methods.
2. The position of condyle in centric relation by leaf gauge and Dawson methods was superior to that by myomonitor method, and the position by myomonitor method was relatively antero-inferior.
3. The distance between the condylar positions in centric occlusion and in centric relation was longest in myomonitor method than the other methods.
4. Comparing the reproducibility antero-posteriorly, supero-inferiorly and transversely. There were little differences in transverse direction among three methods, while leaf gauge method showed the highest reproducibility and myomonitor method showed the lowest one in antero-posterior and supero-inferior directions.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|