Predictive Factors of Ectopic Eruption of the Maxillary First Permanent Molar

선지민; NAM OK HYUNG (남옥형); Kim Mi Sun (김미선); Lee Hyo-Seol (이효설); Chul Choi Sung (최성철)

doi:10.5933/JKAPD.2016.43.3.284

Predictive Factors of Ectopic Eruption of the Maxillary First Permanent Molar

Journal of the Korean academy of pediatric dentistry
Abbr : J Korean Acad Pediatr Dent
2016, 43(3), pp.284-291
DOI : 10.5933/JKAPD.2016.43.3.284
Publisher : The Korean Academy Of Pediatric Dentistry
Research Area : Medicine and Pharmacy > Dentistry

선지민 ¹, NAM OK HYUNG ², Kim Mi Sun ², Lee Hyo-Seol ³, Chul Choi Sung ³

¹경희대학교 치의학전문대학원 소아치과학교실
²경희의료원
³경희대학교

Accredited

ABSTRACT

In order to provide a diagnostic basis for predicting the possibility of the self-correction of ectopic first permanent molars, differences among normal eruption, reversible and irreversible ectopic eruption of maxillary first permanent molars were retrospectively analyzed. The angles of the long axes and the occlusal lines between the maxillary first permanent molar and the adjacent tooth were measured by panoramic radiographs. The occlusal relationship of second primary molars was also investigated. There is a statistically significant difference between the ectopic eruption group and normal group (p < 0.05), but not between the reversible and irreversible ectopic eruption groups (p > 0.05). The angles between the second primary molar and the first permanent molar, the second primary molar and the second permanent molar in ectopic groups showed a smaller degree than those of the control group. Mesial step was found more frequently in the ectopic eruption group than the normal group. In conclusion, the angulation of the first permanent molar and tooth germ of the maxillary second permanent molar showed close relation with ectopic eruption of the maxillary first permanent molar and ectopic first permanent molar is likely to occur in class Ⅲ patients with maxillary deficiency.

KEYWORDS

First permanent molar, Irreversible ectopic eruption, Reversible ectopic eruption

Citation status

* References for papers published after 2023 are currently being built.

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Journal of the Korean academy of pediatric dentistry 2023 KCI Impact Factor : 0.48

Predictive Factors of Ectopic Eruption of the Maxillary First Permanent Molar

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* References for papers published after 2023 are currently being built.

Journal of the Korean academy of pediatric dentistry 2023 KCI Impact Factor : 0.48

Predictive Factors of Ectopic Eruption of the Maxillary First Permanent Molar

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KEYWORDS

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