A Study on maximum Occlusal Force of Korean Adults with Normal Occlusion According to Cephalometric Measurements

Abstract

The purpose of this study was to obtain values of maximum occlusal force after lateral and posteroanterior cephalometric analysis. The normal values of lateral and posteroanterior cephalometric analysis were set up with 118 Korean adults with normal occlusion(63 males and 55 females), and the maximum occlusal forces were measured by occlusal force system. (MPM 3000) The results obtained with Korean adults with normal occlusion were as follows; 1) The values of maximum occlusal force were : incisor region 15.1 ㎏ in male and 13.3 ㎏ in female; canine legion 21.2 ㎏ in male and 19.0 ㎏ in female; premolar region 29.5 ㎏ in male and 29.4 ㎏ in female; molar region 48.3 ㎏ in male and 36.2 ㎏ in female. 2) There were significant differences between right and left sides and between male and female in incisor, canine, and molar regions except premolar region(p< 0.05). The maximum occlusal forces in male were significantly greater than in female except premolar region of right side, and they were more stronger in right side than in the left except canine, premolar, and molar regions of male. 3) The lateral and posteroanterior cephalometric measurements representing facial skeletal morphology, particularly mandibular morphology, correlated well with the values of maximum occlusal force in premolar and molar regions(p< 0.05).