Orthodontic Traction and Decompression Method in Treating Impacted Permanent Mandibular First Molars : Case Reports = 교정적 견인과 감압술에 의한 매복된 하악 제1대구치의 치험례

다국어 초록 (Multilingual Abstract)

Impacted teeth occur at higher frequencies in permanent than primary dentition. The most frequently affected teeth are the maxillary and mandibular third molars, whereas it is quite uncommon for the mandibular first molar to be impacted. Treatment methods for impacted teeth include continuous examination for independent eruption, surgical exposure, subluxation after surgical exposure, orthodontic traction, and surgical repositioning. If all of these treatments fail, tooth extraction may be considered. In the first case study, an 8-year-old boy was treated with surgical exposure, after which he was fitted with an obturator. His mandibular first molar then erupted successfully. In the second case, we treated a 12 year-old boy using orthodontic traction. This study describes children with tooth eruption disorders of the mandibular first molar in mixed dentition, and reports acceptable results regarding treatment of the impacted teeth.

참고문헌 (Reference)

1 김현미, "하악 영구치아의 발육과 연령과의 관계 및 치아 발육에 따른 치아의 위치 변화" 대한소아치과학회 29 (29): 607-617, 2002

2 김은정, "외과적 노출술을 이용한 매복된 하악 제 1 대구치의 자발적 맹출유도" 대한소아치과학회 31 (31): 598-604, 2004

3 Frank CA, "Treatment options for impacted teeth" 131 : 623-632, 2000

4 Ohman I, "The eruption tendency and changes of direction of impacted teeth following surgical exposure" 49 : 383-389, 1980

5 Andreasen JO, "Textbook and color atlas of tooth impactions" Munksgaard 199-208, 1997

6 Nielsen SH, "Primary retention of first permanent mandibular molars in 29 subjects" 28 : 529-534, 2006

7 Proffit WR, "Primary failure of eruption: a possible cause of posterior open-bite" 80 : 173-190, 1981

8 Johnsen DC, "Prevalence of delayed emergence of permanent teeth as a result of lacal factors" 94 : 100-106, 1977

9 Korean Academy of Pediatric dentistry, "Pediatric dentistry" Shinhung international, Inc 537-, 2014

10 Hegde S, "Management of an impacted, dilacerated mandibular left permanent first molar: a case report" 32 : 235-237, 2001

11 Palma C, "Failure of eruption of first and second permanent molars" 27 : 239-246, 2003

12 Raghoebar GM, "Eruption disturbances of permanent molars: a review" 20 : 159-166, 1991

13 Goho C, "Delayed eruption due to overlying fibrous connective tissue" 54 : 359-360, 1987

14 신정근, "Cone Beam CT를 이용한 하악 제 1대구치 맹출 양상에 관한 연구" 대한소아치과학회 36 (36): 325-336, 2009

15 Moslemi M, "An epidemiological survey of the time and sequence of eruption of permanent teeth in 4-15-year-olds in Tehran, Iran" 14 : 432-438, 2004

16 Wali GG, "A study on dentigerous cystic changes with radiographically normal impacted mandibular third molars" 11 : 458-465, 2012