체크바이트와 반조절성 교합기를 이용한 과로경사각 측정

Abstract

An Articulator is a device that can imitate inferior half of face and reproduce mandibular movement, so it can use in diagnosis, decision of treatment plan and education of occlusal theory and moreover induce functionally mandibular movement to make physical occlusal surface which is in accord with mandibular movement. Purpose of this study is to find out a adequate basis for applicating these articulators, presently used for clinical education for Korean. 50 Korean adults (30 males, 20 females), aged between 24 to 36, were selected for this study. A pair of both maxillary and mandibular models were made for this examine. These models were mounted to KaVo PROTAR Evo 7 semi- adjustable articulators by using face-bow transfer, and then sagittal condylar inclination, lateral condylar inclination, and thickness of wax bite of protrusion and lateral movement were measured. 9 times of bite was registrated per each participants by 3 different practioner who are used handling the semi-adjustable articulator and check bite method. 1.Mean sagittal condylar inclination for KaVo PROTAR Evo 7 semi-adjustable articulator was 33.7°(± 13.5°) in men group and 33.4°(± 12.1°) in women group. Statistically, no difference was found between men and women or left and right side. 2.Mean lateral condyalr inclination was 13.8°(± 1.6°) in men group and 13.6°(± 1.2°) in women group. Statistically, no difference was found between men and women or left and right side. 3.Mean thickness of wax plate of balancing side was in between 1.9 mm and 2.35 mm. There's no statistical difference between men and women, but men group demonstrated relatively larger thickness of wax plate. 4.Statistically, there were significant differences between the results which obtained by different examiners.