PROPORSI TINGGI WAJAH PADA RELASI MOLAR KLAS I DAN KLAS II DIVISI2 ANGLE MAHASISWA FAKULTAS KEDOKTERAN GIGI UNIVERSITAS SYIAH KUALA

Abstract

Abstract
The vertical dimension is height of the vertical face which can be measured based on assesment of
facial height proportion. Facial height proportion divided into upper and lower. A normal of upper and
lower facial height proportion is 50%. Dental malocclusion is a deviate relation between teeth and this
can be affect the height of a person's face. Angle classification is the most classification which
commonly used nowadays. Angle classify based on relation between maxilla and mandible first molar.
A lower facial height proportion in molar relation class II division 2 is smaller than class I. This is
because the molar relation class II division 2 has a deep bite as a result of upwards and forwards
mandibular growth. This research is a descriptive survey that aims to see ilustration facial height
proportion in molar relation class I and class II division 2 Angle in Student Faculty of Dentistry Syiah
Kuala University. The subjects of this study was consists of 133 subjects with molar relation class I and
6 subjects with molar relation class II division 2 which selection using purposive sampling. Measuring
facial height proportion was used sliding digital caliper which measured from glabella to menton point.
The result of this study shown that average upper facial height proportion in molar relation class I is
47,03% and class II division 2 is 48,15%. While, average lower facial height proportion in molar
relation class I is 52,97% and class II division 2 is 51,84%.
Keywords : vertical dimension, facial height proportion and molar relation