Predictive Factors of Ectopic Eruption of the Maxillary First Permanent Molar

선지민; NAM OK HYUNG; Kim Mi Sun; Lee Hyo-Seol; Chul Choi Sung

doi:10.5933/JKAPD.2016.43.3.284

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.

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* 2021년 이후 발행 논문의 참고문헌은 현재 구축 중입니다.

[journal] Kurol J / 1986 / Ectopic eruption of maxillary first permanent molars : a review / ASDC J Dent Child 53 : 209~214

[journal] Yuen S / 1985 / Ectopic eruption of the maxillary permanent first molar : the effect of increased mesial angulation on arch length / J Am Dent Assoc 111 : 447~451

[journal] Young DH / 1957 / Ectopic eruption of the first permanent molar / J Dent Child 24 : 153~162

[journal] Barberia-Leache E / 2005 / Ectopic eruption of the maxillary first permanent molar : Characteristics and occurrence in growing children / Angle Orthod 75 : 610~615

[journal] Chintakanon K / 1998 / Ectopic eruption of the first permanent molars : prevalence and etiologic factors / Angle Orthod 68 : 153~160

[journal] Pulver F / 1968 / The etiology and prevalence of ectopic eruption of the maxillary first permanent molar / ASDC J Dent Child 35 : 138~146

[journal] Bjerklin K / 1983 / Ectopic eruption of the maxillary first permanent molar : etiologic factors / Am J Orthod 84 : 147~155

[journal] Cossman MH / 1970 / Ectopic eruption : first molar impaction in the mixed dentition / Dent Dig 76 : 349~353

[journal] Kurol J / 1982 / Resorption of maxillary second primary molars caused by ectopic eruption of the maxillary first permanent molar : a longitudinal and histological study / ASDC J Dent Child 49 : 273~279

[journal] Cheyne VD / 1947 / Impaction of permanent first molar with resorption and space loss in region of deciduous second molar / J Am Dent Assoc 35 : 774~787

[journal] Bjerklin K / 1994 / Ectopic eruption of the maxillary first permanent molar. An epidemiological, familial, etiological and longitudinal clinical study / Swed Dent J Suppl 100 : 1~66

[journal] Campbell OA / 1991 / Ectopic eruption of the first permanent molar / J N J Dent Assoc 62 : 62~65

[journal] Toutountzakis N / 1990 / Ectopic eruption of the maxillary first permanent molar / Orthod Epitheorese 2 : 117~128

[journal] Sheikhi M / 2015 / Accuracy and reliability of linear measurements using tangential projection and cone beam computed tomography / Dent Res J 12 : 271~277

[journal] Philipp RG / 1978 / The cant of the occlusal plane and distortion in the panoramic radiograph / Angle Orthod 48 : 317~323

[journal] Tronje G / 1981 / Image distortion in rotational panoramic radiography. III. Inclined objects / Acta Radiol Diagn 22 : 585~592

[journal] Samawi SS / 1984 / Angular distortion in the orthopantomogram / Br J Orthod 11 : 100~107

[journal] Stramotas S / 2002 / Accuracy of linear and angular measurements on panoramic radiographs taken at various positions in vitro / Eur J Orthod 24 : 43~52

[journal] 오미희 / 2013 / TREATMENT OF BILATERAL ECTOPIC ERUPTION OF THE FIRST PERMANENT MOLARS / 대한소아치과학회지 / 대한소아치과학회 40(1) : 48~52

[journal] Bjerklin K / 1981 / Prevalence of ectopic eruption of the maxillary first permanent molar / Swed Dent J 5 : 29~34

[journal] Kurol J / 1982 / Ectopic eruption of maxillary first permanent molars : familial tendencies / ASDC J Dent Child 49 : 35~38

[journal] Baume LJ / 1950 / Physiological tooth migration and its significance for the development of occlusion ; The biogenesis of accessional dentition / J Dent Res 29 : 331~337

[book] Dean JA / 2011 / Dentistry for the child and adolescent / Mosby : 518~520

[journal] Salbach A / 2012 / Correlation between the frequency of eruption disorders for first permanent molars and the occurrence of malocclusion in early mixed dentition / J Orofac Orthop 73 : 298~306

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