Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Correlation of Left Mandibular Third Molar Development and Chronological Age

하악 좌측 제3대구치 발육과 연령 사이의 연관성

  • Song, Min Sun (Department of Pediatric Dentistry, College of Dentistry, Yonsei University) ;
  • Kang, Chung-Min (Department of Pediatric Dentistry, College of Dentistry, Yonsei University) ;
  • Song, Je Seon (Department of Pediatric Dentistry, College of Dentistry, Yonsei University) ;
  • Choi, Hyung-Jun (Department of Pediatric Dentistry, College of Dentistry, Yonsei University) ;
  • Kim, Seong-Oh (Department of Pediatric Dentistry, College of Dentistry, Yonsei University)
  • 송민선 (연세대학교 치과대학 소아치과학교실) ;
  • 강정민 (연세대학교 치과대학 소아치과학교실) ;
  • 송제선 (연세대학교 치과대학 소아치과학교실) ;
  • 최형준 (연세대학교 치과대학 소아치과학교실) ;
  • 김성오 (연세대학교 치과대학 소아치과학교실)
  • Received : 2021.07.16
  • Accepted : 2021.09.29
  • Published : 2022.02.28
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Abstract

The aim of this study is to evaluate the development of the left mandibular third-molar development with modified Demirjian method and its relation to chronological age. A total of 1653 digital panoramic radiographs of healthy individuals aged between 7 and 23 years who visited Yonsei University Dental hospital were selected. The developmental status of the left mandibular third molars was assessed using dental maturity scoring proposed by Demirjian et al. The mean age of the first appearance of mineralization, complete crown formation, and complete root formation were around 9, 14, 21 years respectively. Statistically significant differences between males and females in the development stage of D and G were revealed that crown formation and root length completion were attained earlier in males than in females. There was significant positive relationship between age and third molar development in both sexes, and new formula was presented to estimate age of children and adolescents based on their developmental stages of third molars. In this study, the use of left mandibular third molar as a developmental marker is appropriate, and age estimation can be attained with dental maturity stage.

이 연구의 목적은 하악 좌측 제3대구치의 치아 성숙도에 대한 한국인의 참고 자료를 제공하고, 하악 좌측 제3대구치의 석회화 단계와 연대기적 연령 사이의 상관관계를 분석 및 치아 발육 단계를 이용하여 연령을 예측할 수 있을지 알아보는 것이다. 연세대학교 치과대학병원에 내원한 만 7 - 23세 사이의 건강한 환자 1653명의 파노라마 방사선 사진을 이용하여 보완된 Demirjian의 방법으로 하악 좌측 제3대구치의 발육 단계를 평가했다. 제3대구치의 석회화는 평균 9세에 시작하였으며 치관과 치근의 형성은 각각 평균 14세, 21세에 완성되었다. 치관의 형성과 치근 길이가 완성되는 발육 단계에서 남성이 여성보다 다소 빨랐으며, 그 차이는 통계적인 유의성을 보였다. 그 외의 발육 단계에서는 남성과 여성 사이의 유의미한 차이는 없었다. 하악 좌측 제3대구치과 연령은 양의 상관관계를 나타냈으며, 제3대구치의 발육 단계를 이용하여 연령을 예측할 수 있었다. 파노라마 방사선 사진을 이용한 하악 좌측 제3대구치의 치아 성숙도 평가 방법을 통하여 제3대구치의 발육 시기를 분석할 수 있었고, 하악 좌측 제3대구치가 연령을 예측하는 수단으로 활용될 수 있음을 알 수 있었다.

Keywords

References

  1. Moorrees CF, Fanning EA, Hunt Jr EE : Age variation of formation stages for ten permanent teeth. J Dent Res, 42:1490-1502, 1963. https://doi.org/10.1177/00220345630420062701
  2. Demirjian A, Goldstein H, Tanner JM : A new system of dental age assessment. Hum Biol, 45:211-227, 1973.
  3. Sierra AM : Assessment of dental and skeletal maturity: a new approach. Angle Orthod, 57:194-208, 1987.
  4. Lauterstein AM : A cross-sectional study in dental development and skeletal age. J Am Dent Assoc, 62:161-167, 1961. https://doi.org/10.14219/jada.archive.1961.0032
  5. Zandi M, Shokri A, Shafiey P, et al. : Evaluation of third molar development and its relation to chronological age: a panoramic radiographic study. Oral Maxillofac Surg, 19:183-189, 2015. https://doi.org/10.1007/s10006-014-0475-0
  6. Engstrom C, Engstrom H, Sagne S : Lower third molar development in relation to skeletal maturity and chronological age. Angle Orthod, 53:97-106, 1983.
  7. Mincer HH, Harris EF, Berryman HE : The ABFO study of third molar development and its use as an estimator of chronological age. J Forensic Sci, 38:379-390, 1993.
  8. Lewis JM, Senn DR : Dental age estimation utilizing third molar development: A review of principles, methods, and population studies used in the United States. Forensic Sci Int, 201:79-83, 2010. https://doi.org/10.1016/j.forsciint.2010.04.042
  9. Solari AC, Abramovitch K : The accuracy and precision of third molar development as an indicator of chronological age in Hispanics. J Forensic Sci, 47:531-535, 2001.
  10. Arany S, Iino M, Yoshioka N : Radiographic survey of third molar development in relation to chronological age among Japanese juveniles. J Forensic Sci , 49:2003372-2003375, 2004.
  11. Bolanos MV, Moussa H, Manrique MC, Bolanos MJ : Radiographic evaluation of third molar development in Spanish children and young people. Forensic Sci Int, 133:212-219, 2003. https://doi.org/10.1016/S0379-0738(03)00037-9
  12. De Salvia A, Calzetta C, Orrico M, De Leo D : Third mandibular molar radiological development as an indicator of chronological age in a European population. Forensic Sci Int, 146:9-12, 2004. https://doi.org/10.1016/j.forsciint.2004.03.014
  13. Sisman Y, Uysal T, Yagmur F, Ramoglu SI : Third-molar development in relation to chronologic age in Turkish children and young adults. Angle Orthod, 77:1040-1045, 2007. https://doi.org/10.2319/101906-430.1
  14. Lee SH, Lee JY, Park HK, Kim YK : Development of third molars in Korean juveniles and adolescents. Forensic Sci Int, 188:107-111, 2009. https://doi.org/10.1016/j.forsciint.2009.03.033
  15. Jung YH, Cho BH : Radiographic evaluation of third molar development in 6-to 24-year-olds. Imaging Sci Dent, 44:185-191, 2014. https://doi.org/10.5624/isd.2014.44.3.185
  16. Duangto P, Iamaroon A, Janhom A, et al. : New models for age estimation and assessment of their accuracy using developing mandibular third molar teeth in a Thai population. Int J Legal Med, 131:559-568, 2017. https://doi.org/10.1007/s00414-016-1467-4
  17. Demirjian A, Goldstein H : New systems for dental maturity based on seven and four teeth. Hum Biol, 3:411-421, 1976. https://doi.org/10.1080/03014467600001671
  18. Schmeling A, Reisinger W, Geserick G, Olze A : Age estimation of unaccompanied minors: Part I. General considerations. Forensic Sci Int, 159:61-64, 2006. https://doi.org/10.1016/j.forsciint.2005.05.019
  19. Bassed RB, Briggs C, Drummer OH : Age estimation and the developing third molar tooth: an analysis of an Australian population using computed tomography. J Forensic Sci, 56:1185-1191, 2011. https://doi.org/10.1111/j.1556-4029.2011.01769.x
  20. Cantekin K, Sekerci AE, Buyuk SK : Dental computed tomographic imaging as age estimation: morphological analysis of the third molar of a group of Turkish population. Am J Forensic Med Pathol, 34:357-362, 2013. https://doi.org/10.1097/PAF.0000000000000054
  21. Reppien K, Sejrsen B, Lynnerup N : Evaluation of post-mortem estimated dental age versus real age: A retrospective 21-year survey. Forensic Sci Int, 159:84-88, 2006.
  22. Richardson M : Late third molar genesis: its significance in orthodontic treatment. Angle Orthod, 50:121-128, 1980.
  23. Gleiser I, Hunt Jr EE : The permanent mandibular first molar: its calcification, eruption and decay. Am J Phys Anthropol, 13:253-283, 1955. https://doi.org/10.1002/ajpa.1330130206
  24. Dhanjal K, Bhardwaj M, Liversidge H : Reproducibility of radiographic stage assessment of third molars. Forensic Sci Int, 159:74-77, 2006.
  25. Friedrich RE, Ulbricht C, von Maydell LAB : The influence of wisdom tooth impaction on root formation. Ann Anat, 185:481-492, 2003. https://doi.org/10.1016/S0940-9602(03)80112-7
  26. Saputri RI, De Tobel J, Thevissen P, et al. : Is third molar development affected by third molar impaction or impaction-related parameters? Clin Oral Investig, 1-13, 2021.
  27. Guo YC, Yan CX, Chen T, et al. : The influence of impaction to the third molar mineralization in northwestern Chinese population. Int J Leg Med, 128:659-665, 2014. https://doi.org/10.1007/s00414-014-0979-z
  28. Li G, Ren J, Wang H, et al. : Dental age estimation from the developmental stage of the third molars in western Chinese population. Forensic Sci Int, 219:158-164, 2012. https://doi.org/10.1016/j.forsciint.2011.12.015
  29. Berberoglu M : Precocious puberty and normal variant puberty: definition, etiology, diagnosis and current management. J Clin Res Pediatr Endocrinol, 1:164-174, 2009. https://doi.org/10.4274/jcrpe.v1i4.3
  30. Lee Y, Mah Y : Skeletal Age Assessment of SMI and MP3 Stages to Predict the Pubertal Growth Spurt. J Korean Acad Pediatr Dent, 46:233-238, 2019. https://doi.org/10.5933/JKAPD.2019.46.3.233
  31. Lee HK, Choi SH, Hwang CJ, et al. : Evaluation of characteristics of the craniofacial complex and dental maturity in girls with central precocious puberty. Angle Orthod, 88:582-589, 2018. https://doi.org/10.2319/112317-809.1
  32. Kim CH, Kang CM, Kim SO, et al. : Evaluation of Characteristics of the Dental Maturity in Girls with Precocious Puberty. J Korean Acad Pediatr Dent, 47:312-319, 2020. https://doi.org/10.5933/JKAPD.2020.47.3.312
  33. Kim B, Kim IH, Song JS, et al. : Correlation between dental maturity and body mass index in Korean children. J Clin Pediatr Dent, 43:432-436, 2019. https://doi.org/10.17796/1053-4625-43.6.12
  34. Olze A, Taniguchi M, Geserick G, et al. : Studies on the chronology of third molar mineralization in a Japanese population. Leg Med, 6:73-79, 2004. https://doi.org/10.1016/j.legalmed.2003.09.005
  35. Bai Y, Mao J, Zhu S, Wei W : Third-molar development in relation to chronologic age in young adults of central China. J Huazhong Univ Sci Technolog Med Sci, 28:487-490, 2008. https://doi.org/10.1007/s11596-008-0426-9
  36. Soares CBRB, Figueiroa JN, Pontual ML, et al. : Evaluation of third molar development in the estimation of chronological age. Forensic Sci Int, 254:13-17, 2015. https://doi.org/10.1016/j.forsciint.2015.06.022
  37. Garn SM, Lewis AB : The relationship between third molar agenesis and reduction in tooth number. Angle Orthod, 32:14-18, 1962.