Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
권호 표지

GROWTH CHANGES OF DENTAL ARCHES DURING THE DECIDUOUS DENTITION PERIOD

유치열기(乳齒列期) 아동(兒童)의 치궁발육(齒穹發育)에 관(關)한 연구(硏究)

  • Byun, In-Sook (Department of Pedodontics, Graduate School, Seoul National University)
  • 변인숙 (서울대학교 대학원 치의학과 소아치과학)
  • Published : 1980.01.01
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Abstract

The purpose of this study is to analyze the width and length changes of the dental arches during the deciduous dentition period. 600 stone models of maxillary and mandibular arches obtained from the children aged 3, 4, or 5 years were under measurement. The results were as follows ; Arch widths and lengths differed with age, sex and arch. 1. * Widths of dental archs increase with age both in males and in females. * Lengths of dental arches decrease with age in females, but remain somewhat stable in males. 2. * The dental arches of males were wider than those of females in both the ant. and the post. section. * The dental arches of males were longer than those of females: ant.arch lengths were almost same, but post. arch lengths were longer in males. 3. * Upper arches were definitely wider and longer than lower arches.

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