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과잉치로 인한 정중이개의 술후 자발적 폐쇄의 치험례
Spontaneous closure of the midline diastema following surgical removal of mesiodens during ugly duckling stage

대한소아치과학회지 1995년 22권 2호 p.499 ~ 506

김신미, 장환일, 김용현,

소속 상세정보

김신미 (  ) - 경희대학교 식품공학과
장환일 (  ) - 경희대학교 식품공학과
김용현 (  ) - 경희대학교 식품공학과

KMID : 0358919950220020499

Abstract

the diastema is defined as a space greater than 0.5millimeter between the proximal surfaces of adjacent teeth. It is a normal stage in the primary dentition and the early mixed dentition(i.e. Ugly ducling stage), especially between the ages of 7
and 12
years. Usually these diastemas close completely after eruption of permanent maxillary cuspid.
Genetic factor, heavy labial frenum, habits, degree of eeep bite, direction of long axis of incisor ad mesiondens can cause midline diastema. Of these, mesiodens located between both maxillary central incisors can cause diastema.
The present case reports show that the abnormal midline diastema caused by mesiodens during Ugly-duckling stage have become spontaneous closure after surgical removal.