제1대구치에서 관찰되는 비정형적 치근형태에 대한 증례보고
Abberant Root Morphology in the Permanent First Molars : Case Reports
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치근 형성은 매우 복잡한 과정이며, 유전적으로 그 형태가 정해져 있다. 유전이나 환경적인 요인이 치근발달과정에 영향을줄 수 있다. 본 연구에서는 제1대구치의 치근형성이상을 주소로 내원한 12명의 환아들에 대하여 보고하고자 한다. 임상적으로 이들 치아는 정상적인 치관의 형태를 보이고 있었다. 그러나 방사선학적 검사상 치근이 얇고 꼬여있으며 불규칙한 길이를나타내었다. 그리고 백악법랑경계에서 치근이개부까지의 길이는 짧았으며, 치수강은 협착되어 있었다. 이들 중 6명의 환아에서는 제2유구치의 치근형성이상이 함께 나타났으며, 3명의 환아에서는 상악 중절치의 치관형태이상이 함께 나타났다. 이들대부분에서 조산, 뇌신경계 감염, 선천성 심질환 등의 의학적 병력이 생후 1년 이내에 관찰되었다. 제1대구치에서 특징적으로 발생하는 치근형태이상에 대한 보고는 희소하며, 본 증례에서 열두 명의 환아에서 동시에 발생한 제1대구치의 치근형성이상은 임상가들에게 새로운 증례의 발견 및 진단함에 의의가 있다.
Abstract
The developmental mechanism of root formation is a complex process. Hereditary and environmental factors may affect the morphology of the developing root. A total of 12 cases was presented with permanent first molars with abberant root morphology. Clinically, these teeth appeared as a normal crown. However, radiographically, the root was slender, twisted and characterized by irregular lengths. In addition, root trunk length was shorter and pulp chamber was obliterated. In these cases, periapical radiolucency and loss of lamina dura were often observed. In 6 cases, an abnormal root of the primary second molars were also present, as well as root malformation of permanent first molars. In 3 cases, permanent central incisors also had a dysmorphic crown. These cases almost all had medical history, such as premature birth, brain infection or congenital heart disease in infants. The present paper describes cases of permanent first molars with an abnormal root that are rarely reported in literature. This case may intensify the variation in the permanent first molar and is intended to reinforce the clinician’s awareness of rare morphology of the roots.
참고문헌 (26)
- Avery JK, "Oral Development and Histology", pp.94~108 (1994), Thieme Medical Pub Inc
- Teaford M, "Development, Function and Evolution of Teeth", pp.212~ (2000), Cambridge University Press
- Maguire JJ, "Radiological features of the long-term effects from treatment of malignant disease in childhood", Pediatr Dent, 7, pp.99~102 (1987)
- Casamassimo PS, "Pediatric dentistry: infancy through adolescence", pp.61~62 (2012), Elsevier
- 윤상일, "단일 치근을 가진 하악 제1유구치", 대한소아치과학회지, 31(4), pp.701~703 (2004), 대한소아치과학회
- 김소현, "가족 내에 발생한 제 1형 상아질 이형성증: 증례보고", 대한소아치과학회지, 41(1), pp.47~53 (2014), 대한소아치과학회[DOI]
- Witkop CJ, "Hereditary defects of dentin", Dent Clin North Am, 19, pp.25~45 (1975)
- Logan J, "Dentinal dysplasia", Oral Surg Oral Med Oral Pathol, 15, pp.317~333 (1962)
- Wesley RK, "Dentin dysplasia type I : Clinical, morphologic, and genetic studies of a case", Oral Surg Oral Med Oral Pathol, 41, pp.516~524 (1976)
- Crowford PJ, "Regional odontodysplasia:a bibliography", J Oral Pathol Med, 18, pp.251~263 (1989)
- 이형숙, "어린이 영구치에 나타난 국소적 치아 이형성증의 관리", 대한소아치과학회지, 35(4), pp.737~743 (2008), 대한소아치과학회
- Sadeghi EM, "Regional odontodysplasia:clinical, pathologic, and therapeutic considerations", J Am Dent Assoc, 102, pp.336~336 (1981)
- Spini TH, "Progressive dental development in regional odontodysplasia", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 104, pp.40~45 (2007)
- Van der Wal JE, "Regional odonto dysplasia: report of three cases", Int J Oral Maxillofac Surg, 22, pp.356~358 (1993)
- Lee HS, "A new type of dental anomaly: molar-incisor malformation (MIM)", Oral Surg Oral Med Oral Pathol Oral Radiol, 118, pp.101~109 (2014)
- Witt CVA, "Root malfor mation associated with a cervical mineralized diaphragm - a distinct form of tooth abnormality?", Oral Surg Oral Med Oral Pathol Oral Radiol, 117, pp.e311~e319 (2014)
- Park JC, "Nfic Gene Distribution inhibits differentiation of odontoblast responsible for root formation and results in formation of short and abnormal roots in mice", J Periodontol, 78, pp.1795~1802 (2007)
- George SP, "Essential Role for NFI-C", CTF Transcription-Replication Factor in Tooth Root Development, 2003, pp.23, 1075~1084
- Vello MA, "Prenatal and neonatal risk factors for the development of enamel defects in low birth weight children", Oral Diseases, 16, pp.257~262 (2010)
- Aine L, "Enamel defects in primary and permanent teeth of children born prematurely", J Oral Pathod Med, 29, pp.403~409 (1999)
- Seow WK, "A controlled study of the development of the permanent dentition in very-low birth weight children", Pediatr Dent, 18, pp.379~384 (1996)
- Seow WK, "Effect of preterm birth on oral growth and development", Australian Dental Journal, 42, pp.85~91 (1997)
- Falicity Crombie, "Aetiology of molar-incisor hypomineralization: a critical review", Int J Paediatr Dent, 19, pp.73~83 (2009)
- 신종현, "초등학생의 Molar Incisor Hypomineralization 유병률과 제1대구치 치아우식증 및 수복상태 조사", 대한소아치과학회지, 37(2), pp.179~185 (2010), 대한소아치과학회
- Hallett KB, "Oral health of children with congenital cardiac diseases : a controlled study", Pediatr Dent, 14, pp.224~230 (1992)
- 정해경, "제1대구치의 석회화와 맹출 양상", 대한소아치과학회지, 37(3), pp.317~327 (2010), 대한소아치과학회