Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Three Dimensional Analysis of Maxillary Mesiodens Using Dental CBCT and Relationship Between the Mesiodens and Diastema

치과용 CBCT를 이용한 상악 정중치의 3차원 분석 및 정중치와 정중이개와의 관계분석

  • Kang, Eunjoo (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University) ;
  • Choi, Namki (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University) ;
  • Kim, Seonmi (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University)
  • 강은주 (전남대학교 치의학전문대학원 소아치과학교실) ;
  • 최남기 (전남대학교 치의학전문대학원 소아치과학교실) ;
  • 김선미 (전남대학교 치의학전문대학원 소아치과학교실)
  • Received : 2013.03.19
  • Accepted : 2013.09.09
  • Published : 2013.11.29
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Abstract

The aim of this study was to analyze the three dimensional characteristics of the size, shape and location of mesiodens and their effect on permanent teeth arrangement using Cone-beam computed tomography(CBCT). 191 patients under 15 years old who had visited the hospital between June 2006 and December 2012 and taken CBCT were investigated. Among them, 43 patients with diastema were analyzed to investigate the correlation between the amount of diastema and the mesiodens. The results showed that mesiodens were found in males 3.9 times more than females and found most in 7 years old. The mean length of mesiodens was 13 mm and the width was 6.8 mm. The conical shape comprised of 52.9%. Many mesiodens were located in the palatal side rather than the labial side and located vertically near the crown. 63.0% of mesiodens were reversed and the common complications were delayed eruption followed by diastema, and teeth rotation. And the amount of diastema had correlation with size and mesiodistal position of the mesiodens. The current study used 3D analysis to show the size and position of mesiodens and occurrence distribution of complication. Among these, the amount of diastema had shown the correlation with the size and mesiodistal position of mesiodens.

본 연구는 Cone-beam computed tomography(CBCT)를 이용하여 상악 정중치의 크기, 형태, 위치 등의 3차원적 특성을 분석하고 이들이 영구치열에 미치는 영향에 대해 알아보고자 시행되었다. 2006년 6월부터 2012년 12월까지 내원하여 CBCT를 촬영한 환자 중 15세 이하의 환자, 191명을 대상으로 하였으며 이 중 정중이개를 보이는 43명을 대상으로 정중치의 크기, 위치와 정중이개량과의 상관관계를 분석하였다. 연구 결과, 정중치는 남성에서 약 3.9배 많이 발견되었고 7세에서 가장 많이 나타났다. 평균 길이는 13.0 mm, 폭경은 6.8 mm이였으며, 원추형이 59.2%로 가장 많았다. 정중치는 순측보다 구개측에 다수 존재하였고 수직적으로는 영구치의 치관부위에 근접해 있는 경우가 많았다. 정중치의 63.0%가 역위 형태였으며 정중치에 의해 유발된 병발증은 맹출지연이 39.0%, 정중이개 23.6%, 치아회전이 15.9%를 차지하였다. 이 중 정중이개량은 정중치의 크기와 중등도의 상관관계를 보였으며 정중치의 근원심 위치도 정중이개량과 통계적 상관관계를 보였다. 본 연구에서 시행한 정중치의 3차원 분석을 통해 정중치의 크기, 위치, 병발증의 발생분포를 파악할 수 있으며, 이 중 정중이개량은 정중치의 크기, 근원심 위치와 상관성이 있다는 것을 알 수 있었다.

Keywords

References

  1. Leco-Berrocal MI, Martin-Morales JF, Martlnez-Gonzalez JM : An observational study of the frequency of supernumerary teeth in a population of 2000 patients. Med Oral Patol Oral Cir Bucal, 12:134-138, 2007.
  2. Alberti G, Mondani PM, Parodi V : Eruption of supernumerary permanent teeth in a sample of urban primary school population in Genoa, Italy. Eur J Paediatr Dent, 7:89-92, 2006.
  3. Thomas VA : Anterior maxillary supernumerary teeth: a clinical and radiographic study. Aust Dent J, 37:189-195, 1992. https://doi.org/10.1111/j.1834-7819.1992.tb00741.x
  4. Sedano HO, Gorlin RJ : Familial occurrence of mesiodens. Oral Surg Oral Med Oral Pathol, 27:360-361, 1969. https://doi.org/10.1016/0030-4220(69)90366-1
  5. Primosch RE : Anterior supernumerary teethassessment and surgical intervention in children. Pediatr Dent, 3:204-215, 1981.
  6. McKibden DR, Brearley LJ : Radiographic determination of the prevalence of selected dental anomalies in children. ASDC J Dent Child, 28:390-398, 1971.
  7. Brook AH : A unifying aetiological explanation for anomalies of human tooth number and size. Arch Oral Biol, 29:373-378, 1984. https://doi.org/10.1016/0003-9969(84)90163-8
  8. Tyrologou S, Koch G, Kurol J : Location, complications and treatment of mesiodentes-a retrospective study in children. Swed Dent J, 29:1-9, 2005.
  9. Giancotti A, Grazzini F, Arcuri C, et al. : Multi-disciplinary evaluation and clinical management of mesiodens. J Clin Pediatr Dent, 26:233-237, 2002.
  10. J Lustmann, L Bodner : Dentigerous cysts associated with supernumerary teeth. Int J Oral Maxillofac Surg, 17:100-102, 1988. https://doi.org/10.1016/S0901-5027(88)80159-0
  11. Nastri AL, Smith AC : The nasal tooth : case report. Aust Dent J, 41:176-177, 1996. https://doi.org/10.1111/j.1834-7819.1996.tb04851.x
  12. Jung YH, Nah KS, Cho BH : The relationship between the position of mesiodens and complications. Korean J Oral Maxillofac Radiol, 38:103-107, 2008.
  13. Hyun HK, Lee SJ, Kim JW, et al. : Clinical characteristics and complications associated with mesiodentes. J Oral Maxillofac Surg, 67:2639-2643, 2009. https://doi.org/10.1016/j.joms.2009.07.041
  14. Noh JJ, Choi BR, Choi SC, et al. : Diagnostic imaging analysis of the impacted mesiodens. Korean J Oral Maxillofac Radiol, 40:69-74, 2010.
  15. Kim SH, Kim YJ, Kim S, Jeong TS : Accuracy of cone-beam computed tomography in predicting the diameter of unerupted teeth. J Korean Acad Pediatr Dent, 39:139-144, 2012. https://doi.org/10.5933/JKAPD.2012.39.2.139
  16. Rajab LD, Hamdan MA : Supernumerary teeth: review of the literature and a survey of 152 cases. Int J Paediatr Dent, 12:244-254, 2002. https://doi.org/10.1046/j.1365-263X.2002.00366.x
  17. Brook AH : Dental anomalies of number, form and size: their prevalence in British schoolchildren. J Int Assoc Dent Child, 5:37-53, 1974.
  18. Kinirons MJ : Unerupted premaxillary supernumerary teeth. A study of their occurrence in males and females. Br Dent J, 153:110-118, 1982. https://doi.org/10.1038/sj.bdj.4804863
  19. Lee DH, Lee JS, Yoon SJ, Kang BC : Three dimensional evaluation of impacted mesiodens using dental cone beam CT. Korean J Oral Maxillofac Radiol, 40:109-114, 2010.
  20. Asaumi JI, Shilbata Y, Kishi K, et al. : Radiographic examination of mesiodens and their associated complications. Dentomaxillofacial Radiology, 33:125-127, 2004. https://doi.org/10.1259/dmfr/68039278
  21. Garvey MT, Barry HJ, Blake M : Supernumerary teeth-an overview of classification diagnosis and management. J Can Dent Assoc, 65:612-616, 1999.
  22. Profitt WR, Fields HW, Sarver DM : Contemporary orthodontics. 4th ed. St Louis: CN Mosby Co: 1986. p.138-243
  23. Tay F, Pang A, Yuen S : Unerupted maxillary anterior supernumerary teeth: report of 204 cases. ASDC J Dent Child, 51:289-298, 1984.
  24. Solares R : The complications of late diagnosis of anterior supernumerary teeth: case report. ASDC J Dent Child, 57:209-211, 1990.
  25. Witsenburg B, Boering G : Eruption of impacted permanent upper incisors after removal of supernumerary teeth. Int J Oral Surg, 10:423-431, 1981. https://doi.org/10.1016/S0300-9785(81)80079-8
  26. Yague-Garcia J, Berini-Aytes L, Gay-Escoda C : Multiple supernumerary teeth not associated with complex syndromes: a retrospective study. Med Oral Patol Oral Cir Bucal, 14:331-336, 2009.
  27. Keene HJ : Distribution of diastemas in the dentition of man. Am J Phys Anthropol, 21:437-441, 1963. https://doi.org/10.1002/ajpa.1330210402
  28. Broadbent BH : Ontogenic development of occlusion. Angle Orthod, 11:223-241, 1941.
  29. Koora K, Muthu MS, Rathna PV : Spontaneous closure of midline diastema following frenectomy. J Indian Soc Pedod Prev Dent, 25:23-26, 2007. https://doi.org/10.4103/0970-4388.31985
  30. Lee SJ : The Statistical Study of Maxillary Median Diastema. J Korean Acad Pediatr Dent, 115-122, 1983.
  31. Richardson ER, Malhotra SK, Coleman HT, et al. : Biracial study of the maxillary midline diastema. Angle Orthod, 43:438-43, 1973.
  32. Hahn SH : A study on the maxillary median diastema(III). Korean Dental Association, 22:699-703, 1984.
  33. Taylor JE : Clinical observations relating to the normal and abnormal frenulum labii superians. Am J Ortho And Oral Surg, 25:646-660, 1939. https://doi.org/10.1016/S0096-6347(39)90066-9
  34. Gardiner JH : Midline space, Dental Practice (Bristol). 17:276-278, 1967.
  35. Munshi A, Munshi AK : Midline space closure in the mixed dentition: a case report. J Indian Soc Pedod Prev Dent, 19:57-60, 2001.
  36. Follin ME : Orthodontic movement of maxillary incisor into the midline. A case report. Swed Dent J, 9:9-13, 1985.
  37. Putter H, Huberman A, Scherer W : Diastema closure: A case report. J Esthet Dent, 4:9-11, 1992. https://doi.org/10.1111/j.1708-8240.1992.tb00709.x

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