A STUDY ON THE VOLUMES AND FORMS OF THE PALATE FOR DECIDUOUS AND PERMANENT DENTITION

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Journal of the Korean Academy of Pediatric Dentistry 2003;30(4):696-706.
Published online November 30, 2003.

A STUDY ON THE VOLUMES AND FORMS OF THE PALATE FOR DECIDUOUS AND PERMANENT DENTITION

유치열과 영구치열의 구개 형태에 관한 연구

양연미, 백병주, 김재곤

전북대학교 치과대학 소아치과학교실 및 구강생체과학연구소

Correspondence: ,

Abstract

The purpose of this study was to clarify the palatal forms through palatal curvatures of right to left, anterior to posterior direction, and difference of right and left palatal volumes in the primary and permanent dentition. Samples were consisted of normal occlusion of both dentition(50 males and 50 females each). Their upper plaster casts were used, measuring points were decided, through 3-dimensional laser scanning(3-D Laser Scanner, DS4060, LDI, U.S.A.), and fitting standard horizontal plane were made for measuring the height and sectioned volumes of palate. The results were as follows: 1. Palatal volume and height were greater at the right side of the palate in the primary and permanent dentition of male and female, but there was no significance. 2. Palatal height was greater in male compared to female, especially, there was significant difference at intercuspid, inter-second premolar area in the permanent dentition(P<0.05). 3. To the height of A-P direction of mid-palatal area, the highest point was 20mm in the primary dentition, 30mm in the permanent dentition from interdental papilla of central incisors. 4. Palatal height of inter-cuspid and inter-second premolar became shallow and broad, high and broad each, compared to inter-deciduous canine and inter-second deciduous molar.

Key Words: Palatal volume, Palatal height, Palatal form