Occlusal vertical dimension index to simplified vertical dimension measurement

The aim of this study was to develop occlusal vertical dimension index to simplified vertical dimension measurement. Many dentists have difficulty in determining the exact vertical dimension of their patients. Hayakawa developed a formula to determine vertical dimension but had been made from a study using Japanese subjects, so that the accuracy if it is used for Indonesian people are still doubtfull. This study consist of 2 stages, the first stage, wanted to develop a specific index for the Deutero-Malay race in Indonesia that can be used to predict vertical dimension of the patients. The second stage of this study were comparing the accuracy of occlusal vertical dimension obtained from the OVD index with subject's actual occlusal vertical dimension. There were 63 subjects included in the first stage of study and also another 63 subjects included in the second stage of the study. This is a cros-sectional study and the factors being observed for the relationship with vertical dimension were interpupillary distance, inter zygomatic distance, zygomatic-chelion, sex, profile, palm length, pupillary-subnasion distance and pupillary-chelion. The result of this study is OVD index to predict specific vertical dimension for Deutero-Malay race as follows,sn-gn= 36.65 + 4.58 (gender) + 0.46 (p-p).