The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
권호 표지
DOI QR코드

DOI QR Code

The relationships between the arrangement of teeth, root resorption, and dental maturity in bovine mandibular incisors

  • An, Jin-kyu (Department of Orthodontic Science, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University) ;
  • Matsumoto, Yoshiro (Department of Orthodontic Science, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University) ;
  • Ono, Takashi (Department of Orthodontic Science, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University)
  • Received : 2017.02.01
  • Accepted : 2017.05.26
  • Published : 2017.11.25
Download PDF
⟨ Previous Next ⟩

Abstract

Objective: The objective of this study is to investigate the eruption pattern and root resorption of the bovine anterior dentition in relation to growth-related parameters based on dental maturity. Methods: A cross-sectional study was conducted on 110 bovine anterior mandibles by using standard radiography, cone-beam computed tomography (CBCT), and actual measurements. We determined the relationships between the stages of dental maturity by using a modification of Demirjian's method and various growth-related parameters, such as the activity of the root-resorbing tissue and mobility of the deciduous teeth. The correlation of growth-related parameters with interdental spacing and distal unusual root resorption (DRR) of the deciduous fourth incisor was assessed. The cause of mesial unusual root resorption (MRR) of the deciduous fourth incisor was determined on the basis of the arrangement of the permanent third incisor. Results: An independent t-test and chi-square test indicated significant differences in growth-related parameters associated with dental arch length discrepancy and factors related to the shedding of deciduous teeth between the low and high dental maturity groups. The samples with interdental spacing and DRR showed a larger sum of mesiodistal permanent crown widths and higher dental maturity than did the respective controls. Samples with MRR tended to show a lingually rotated distal tip of the adjacent tooth crown. Conclusions: Dental maturity has relevance to the interdental spaces and unusual root resorption of mixed dentition. The position of the adjacent tooth crown on CBCT may be correlated with the occurrence of unusual root resorption of the incisor.

Keywords

References

  1. Hixon EH, Oldfather RE. Estimation of the sizes of unerupted cuspid and bicuspid teeth. Angle Orthod 1958;28:236-40.
  2. Bagherpour A, Pousti M, Adelianfar E. Hand skeletal maturity and its correlation with mandibular dental development. J Clin Exp Dent 2014;6:e275-9.
  3. Muller-Bolla M, Lupi-Pegurier L, Quatrehomme G, Velly AM, Bolla M. Age estimation from teeth in children and adolescents. J Forensic Sci 2003;48:140-8.
  4. Green LJ. The interrelationships among height, weight and chronological, dental and skeletal ages. Angle Orthod 1961;31:189-93.
  5. Palanisamy V, Rao A, Shenoy R, Baranya SS. Correlation of dental age, skeletal age, and chronological age among children aged 9-14 years: a retrospective study. J Indian Soc Pedod Prev Dent 2016;34:310-4. https://doi.org/10.4103/0970-4388.191408
  6. Panchbhai AS. Dental radiographic indicators, a key to age estimation. Dentomaxillofac Radiol 2011;40:199-212. https://doi.org/10.1259/dmfr/19478385
  7. Demirjian A, Goldstein H, Tanner JM. A new system of dental age assessment. Hum Biol 1973;45:211-27.
  8. Bishara SE, Khadivi P, Jakobsen JR. Changes in tooth size-arch length relationships from the deciduous to the permanent dentition: a longitudinal study. Am J Orthod Dentofacial Orthop 1995;108:607-13. https://doi.org/10.1016/S0889-5406(95)70006-4
  9. Bishara SE, Jakobsen JR. Individual variation in tooth-size/ arch-length changes from the primary to permanent dentitions. World J Orthod 2006;7:145-53.
  10. el-Nofely A, Sadek L, Soliman N. Spacing in the human deciduous dentition in relation to tooth size and dental arch size. Arch Oral Biol 1989;34:437-41. https://doi.org/10.1016/0003-9969(89)90122-2
  11. Ericson S, Kurol J. Resorption of maxillary lateral incisors caused by ectopic eruption of the canines. A clinical and radiographic analysis of predisposing factors. Am J Orthod Dentofacial Orthop 1988;94: 503-13. https://doi.org/10.1016/0889-5406(88)90008-X
  12. Rozylo-Kalinowska I, Kolasa-Raczka A, Kalinowski P. Dental age in patients with impacted maxillary canines related to the position of the impacted teeth. Eur J Orthod 2011;33:492-7. https://doi.org/10.1093/ejo/cjq123
  13. Dalessandri D, Parrini S, Rubiano R, Gallone D, Migliorati M. Impacted and transmigrant mandibular canines incidence, aetiology, and treatment: a systematic review. Eur J Orthod 2017;39:161-9. https://doi.org/10.1093/ejo/cjw027
  14. Saka H, Koyama T, Tamatsu Y, Usami A, Ide Y. The morphological studies of root resorption of maxillary primary canines and their relation with the position of successive permanent teeth using Micro-CT. Pediatr Dent J 2011;21:145-53. https://doi.org/10.1016/S0917-2394(11)70241-5
  15. Oguchi H. In vitro studies of bone resorption by the root-resorbing tissue from the bovine deciduous tooth. Bull Tokyo Med Dent Univ 1975;22:175-83.
  16. Lind V. Short root anomaly. Scand J Dent Res 1972; 80:85-93.
  17. Kumar CL, Sridhar MS. Estimation of the age of an individual based on times of eruption of permanent teeth. Forensic Sci Int 1990;48:1-7. https://doi.org/10.1016/0379-0738(90)90266-2
  18. Andrews AH. Eruption of the maxillary first and second molar teeth in cattle as a method of estimating age. Br Vet J 1983;139:355-60. https://doi.org/10.1016/S0007-1935(17)30441-4
  19. Brown WAB, Chapman NG. Age assessment of red deer (Cervus elaphus): from a scoring scheme based on radiographs of developing permanent molariform teeth. J Zoology 1991;225:85-97. https://doi.org/10.1111/j.1469-7998.1991.tb03803.x
  20. Brown WA, Christofferson PV, Massler M, Weiss MB. Postnatal tooth development in cattle. Am J Vet Res 1960;21:7-34.
  21. Boulanger G. La Calcification des premolaires et molaires et ses relations avecl'Page chronologique et squellettique chez les enfants de 6a 11 ans. Inaugural dissertation, University of Zurich, 1958.
  22. Barrow GV, White JR. Developmental changes of the maxillary and mandibular dental arches. Angle Orthod 1952;22:41-6.
  23. Nanda RS. Root resorption of deciduous teeth in Indian children. Arch Oral Biol 1969;14:1021-30. https://doi.org/10.1016/0003-9969(69)90072-7
  24. Sriram CH, Priya VK, Sivakumar N, Reddy KR, Babu PJ, Reddy P. Occlusion of primary dentition in preschool children of Chennai and Hyderabad: A comparative study. Contemp Clin Dent 2012;3:31-7. https://doi.org/10.4103/0976-237X.94543
  25. Vegesna M, Chandrasekhar R, Chandrappa V. Occlusal characteristics and spacing in primary dentition: a gender comparative cross-sectional study. Int Sch Res Notices 2014;2014:512680.
  26. Krishnan V, Davidovitch Z. Chapter 4 gene and tooth movement. In: Krishnan V, Davidovitch Z, eds. Biological mechanisms of tooth movement. New Jersey: Wiley-Blackwell; 2009. p. 56-7.
  27. Ericson S, Bjerklin K, Falahat B. Does the canine dental follicle ause resorption of permanent incisor roots? A computed tomographic study of erupting maxillary canines. Angle Orthod 2002;72:95-104.
  28. Schindel RH, Sheinis MR. Prediction of maxillary lateral-incisor root resorption using sector analysis of potentially impacted canines. J Clin Orthod 2013;47:490-3.
  29. Guarnieri R, Cavallini C, Vernucci R, Vichi M, Leonardi R, Barbato E. Impacted maxillary canines and root resorption of adjacent teeth: a retrospective observational study. Med Oral Patol Oral Cir Bucal 2016;21:e743-50.