A STUDY ON THE MEASUREMENT OF MAXIMUM INTERINCISAL DISTANCE IN KOREAN ADULTS

한국인(韓國人) 청장년(靑壮年)에 있어서 최대개구(最大開口)에 따른 전치절단간(前齒切端間)의 거이계측(距離計測)에 관(關)한 연구(硏究)

The author measured the maximum interincisal distance by means of the sliding caliper. The subjects measured here were 149 healthy Korean males and 229 females, ranging from 15 to 49 years old, with normal occlusion. The results were as follows; 1. The mean value of maximum interincisal distance was $50.03{\pm}0.22mm$. in male and $45.18{\pm}0.14mm$. in female. 2. There was a significant difference in the mean value between male female. 3. The interincisal distances in maximum opening were slightly larger in male than female. 4. There was no significant difference in the mean value between the age groups in Korean adults. But it has been revealed that there was apparent difference in the mean value between 15~19 years and 20~29 years old, in female. 5. It has been appeared that maximum interincisal distance in male was 69mm, minimum 37mm., and maximum interincisal distance in female was 58mm. minimum. 30mm.