이하 두정 X-선 계측사진을 이용한 골격형 안면 비대칭분석 = ANALYSIS OF SKELETAL FACIAL ASYMMETRY WITH SUBMENTOVERTEX CEPHALOMETRIC RADIOGRAPH

다국어 초록 (Multilingual Abstract)

This study was performed to investigate the midline having the least difference between the right and left structure among the lines that had been used in the submentovertex analysis and secondarily to know the distribution of asymmetry and it's degree existed normal persons and asymmetric patients.
The subjects consisted of 40 normal adult patients and 40 asymmetric adult patients. The computerized anaylses from submentovertex cepholometric radiograph were carried out.
The results were as follows ;
1. The right and left difference of the perpendicular bisecting line between right and left foramen spinosum was larger than the other midlines in the anterior area and it was area where there was foramen spinosum.
2. The right and left difference of the perpendicular line through crista gali to the line between right and left foramen spinosum was smaller than the other midlines in the anterior area and it was increased gradually as in progressed posteriorly.
3. The right and left difference of the line between crista gali and anterior process of atlas was constant and smaller than the other midlines.
4. Asymmetry was a common finding in both normal and asymmetry group and left or right dominance of asymmetry was not statistically singnificant.
5. When the analyses were undertaken after submentovertex radiogram was divided
into cranial base, upper face lower face, the more inferior part showed relative
asymmetry than the more superior part.