Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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ECTOPIC ERUPTION OF MANDIBULAR FIRST PERMANENT MOLAR : A CASE REPORT

하악 제1대구치 이소맹출의 치험례

  • So, Jeong-Won (Department of Pediatric Dentistry, College of Dentistry, Wonkwang University) ;
  • Lee, Kwang-Hee (Department of Pediatric Dentistry, College of Dentistry, Wonkwang University) ;
  • Ra, Ji-Young (Department of Pediatric Dentistry, College of Dentistry, Wonkwang University) ;
  • An, So-Youn (Department of Pediatric Dentistry, College of Dentistry, Wonkwang University) ;
  • Kim, Yun-Hee (Department of Pediatric Dentistry, College of Dentistry, Wonkwang University) ;
  • Ban, Jae-Hyuk (Department of Pediatric Dentistry, College of Dentistry, Wonkwang University)
  • 소정원 (원광대학교 치과대학 소아치과학교실) ;
  • 이광희 (원광대학교 치과대학 소아치과학교실) ;
  • 라지영 (원광대학교 치과대학 소아치과학교실) ;
  • 안소연 (원광대학교 치과대학 소아치과학교실) ;
  • 김윤희 (원광대학교 치과대학 소아치과학교실) ;
  • 반재혁 (원광대학교 치과대학 소아치과학교실)
  • Published : 2010.02.26
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Abstract

Ectopic eruption is caused by an abnormal direction of eruptive path, most common in maxillary first molar, mandibular lateral incisor, and maxillary canine, and sometimes mandibular first molar. Ectopic eruption of first molar leads to abnormal root resorption of second deciduous molar, which, if left untreated, could cause premature loss of second deciduous molar; mesial tilting and rotation of first permanent molar; lack of space for eruption of second premolar; and occlusal problems. Therefore early treatment is advised when diagnosed as ectopic eruption. Treatment of ectopic eruption in the first permanent molar involves providing proper guidance for the direction of eruption using interproximal wedging and distal tipping methods while preserving second deciduous molar. This case report shows satisfactory results of the ectopic eruption of mandibular first molars in young patients who were treated with Humphrey appliance and Halterman appliance.

이소맹출은 치아가 비정상적인 위치로 맹출하는 경우를 말하며, 주로 상악 제1대구치, 하악 측절치, 상악 견치에서 발생하며 하악 제1대구치에서는 드물게 발생한다. 제1대구치의 이소맹출은 흔히 제2유구치의 비정상적인 치근흡수를 야기하며, 이를 방치하게 되면 제2유구치의 조기상실, 제1대구치의 근심경사 및 회전, 제2소구치의 맹출 공간 부족 및 교합문제 등을 야기하게 되므로 이소맹출로 진단될 경우 조기 치료가 추천된다. 이소맹출은 대개 통상적인 방사선검사를 통해 발견되나, 간혹 제2유구치의 치근흡수가 심할 경우 치수가 감염되어 동통을 야기하는 경우도 있다. 이소맹출의 치료는 제2유구치를 보존하면서 제1대구치의 맹출 방향을 바로 잡아 주는 것으로 크게 치간이개(interproximal wedging)와 원심경사이동(distal tipping)을 이용한 방법을 사용한다. 본 증례들은 하악 제1대구치의 이소맹출을 보이는 환아들로, Humphrey appliance와 Halterman appliance를 이용하여 양호한 치료 결과를 얻었기에 보고하는 바이다.

Keywords

References

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