Journal of Korean Dental Science

Korean Academy of Dental Science (대한치의학회)
권호 표지

Consideration of Clinically Related Dental Anomalies: Prevalence and Association

  • Kim, Young-Ho (Department of Orthodontics, Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kim, Seo-Hee (Department of Orthodontics, Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Baek, Seung-Hak (Department of Orthodontics, School of Dentistry, Seoul National University)
  • Received : 2009.09.02
  • Accepted : 2012.03.16
  • Published : 2010.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Objective : To investigate the prevalence of dental anomalies and to determine the associations between dental anomalies in permanent teeth Materials and methods : The samples were 1,240 patients (760 females and 480 males, mean age=15.1 years) who visited the Samsung Medical Center. Dental anomalies were diagnosed using pre-treatment dental casts, radiographs, clinical examinations, and medical/dental histories. Prevalence and association were investigated according to gender and sidedness. The Chi-square test was performed for statistical analysis. Results : The most common missing tooth was the lower lateral incisor, followed by the lower and upper second premolars. This particular dental anomaly is characteristic of the East Asian population (prevalence of congenital missing tooth=12.3%). The upper anterior area was the most frequently affected area (prevalence of supernumerary tooth was 1.5%). The presence of a supernumerary tooth was more prevalent in males than in females (p<.05, odds ratio=3.2). The most frequently affected tooth was the upper canine (prevalence of impacted tooth=4.3%). Unilateral impaction of the upper canine occurred significantly more often compared to bilateral impaction (p<.001). The prevalence of peg lateralis was 2.7%. The presence of congenital missing tooth was closely associated with peg lateralis (p<.01). If children aged 7~8 years have peg lateralis, the rest of the teeth should be checked for congenital absences. Conclusion : The early detection of dental anomalies and understanding of their associations help clinicians determine the appropriate treatment timing and methods of dealing with these anomalies.

Keywords

References

  1. Basdra EK, Kiokpasoglou MN, Komposch G. Congenital tooth anomalies and malocclusions: a genetic link? Eur J Orthod 2001;23:145-151. https://doi.org/10.1093/ejo/23.2.145
  2. Magnusson TE. Prevalence of hypodontia and malformations of permanent teeth in Iceland. Community Dent Oral Epidemiol 1977;5:173-178. https://doi.org/10.1111/j.1600-0528.1977.tb01635.x
  3. Gabris K, Fabian G, Kaan M, Rozsa N, Tarjan I. Prevalence of hypodontia and hyperdontia in paedodontic and orthodontic patients in Budapest. Community Dent Health 2006;23:80-82.
  4. Davis PJ. Hypodontia and hyperdontia of permanent teeth in Hong Kong schoolchildren. Community Dent Oral Epidemiol 1987;15:218-220. https://doi.org/10.1111/j.1600-0528.1987.tb00524.x
  5. Polder BJ, Van t Hof MA, Van der Linden FP, Kuijpers-Jagtman AM. A meta-analysis of the prevalence of dental agenesis of permanent teeth. Community Dent Oral Epidemiol 2004;32:217- 226. https://doi.org/10.1111/j.1600-0528.2004.00158.x
  6. Altug-Atac AT, Erdem D. Prevalence and distribution of dental anomalies in orthodontic patients. Am J Orthod Dentofacial Orthop 2007;131:510-514. https://doi.org/10.1016/j.ajodo.2005.06.027
  7. Baccetti T. A controlled study of associated dental anomalies. Angle Orthod 1998;68:267-274.
  8. Buenviaje TM, Rapp R. Dental anomalies in children: a clinical and radiographic survey. ASDC J Dent Child 1984;51:42-46.
  9. Dachi SF, Howell FV. A survey of 3, 874 routine full-month radiographs. II. A study of impacted teeth. Oral Surg Oral Med Oral Pathol 1961;14:1165-1169. https://doi.org/10.1016/0030-4220(61)90204-3
  10. Roberts-Harry D, Sandy J. Orthodontics. Part 10: Impacted teeth. Br Dent J 2004;196:319-327; quiz 362. https://doi.org/10.1038/sj.bdj.4811074
  11. Thilander B, Myrberg N. The prevalence of malocclusion in Swedish schoolchildren. Scand J Dent Res 1973;81:12-21.
  12. al-Emran S. Prevalence of hypodontia and developmental malformation of permanent teeth in Saudi Arabian schoolchildren. Br J Orthod 1990;17:115-118. https://doi.org/10.1179/bjo.17.2.115
  13. Brook AH. A unifying aetiological explanation for anomalies of human tooth number and size. Arch Oral Biol 1984;29:373-378. https://doi.org/10.1016/0003-9969(84)90163-8
  14. Wisth PJ, Thunold K, Boe OE. Frequency of hypodontia in relation to tooth size and dental arch width. Acta Odontol Scand 1974;32:201-206. https://doi.org/10.3109/00016357409002548
  15. Endo T, Ozoe R, Kubota M, Akiyama M, Shimooka S. A survey of hypodontia in Japanese orthodontic patients. Am J Orthod Dentofacial Orthop 2006;129:29-35. https://doi.org/10.1016/j.ajodo.2004.09.024
  16. Endo T, Ozoe R, Yoshino S, Shimooka S. Hypodontia patterns and variations in craniofacial morphology in Japanese orthodontic patients. Angle Orthod 2006;76:996-1003. https://doi.org/10.2319/082905-303
  17. Niswander JD, Sujaku C. Congenital anomalies of teeth in Japanese children. Am J Phys Anthropol 1963;21:569-574. https://doi.org/10.1002/ajpa.1330210413
  18. Eidelman E, Chosack A, Rosenzweig KA. Hypodontia: prevalence amongst Jewish populations of different origin. Am J Phys Anthropol 1973;39:129-133. https://doi.org/10.1002/ajpa.1330390113
  19. Nordgarden H, Jensen JL, Storhaug K. Reported prevalence of congenitally missing teeth in two Norwegian counties. Community Dent Health 2002;19:258-261.
  20. Backman B, Wahlin YB. Variations in number and morphology of permanent teeth in 7-year-old Swedish children. Int J Paediatr Dent 2001;11:11-17. https://doi.org/10.1046/j.1365-263x.2001.00205.x
  21. Rajab LD, Hamdan MA. Supernumerary teeth: review of the literature and a survey of 152 cases. Int J Paediatr Dent 2002;12:244-254. https://doi.org/10.1046/j.1365-263X.2002.00366.x
  22. Leifert S, Jonas IE. Dental anomalies as a microsymptom of palatal canine displacement. J Orofac Orthop 2003;64:108-120. https://doi.org/10.1007/s00056-003-0222-x
  23. Ericson S, Kurol J. Radiographic examination of ectopically erupting maxillary canines. Am J Orthod Dentofacial Orthop 1987;91:483-492. https://doi.org/10.1016/0889-5406(87)90005-9
  24. Alvesalo L, Portin P. The inheritance pattern of missing, pegshaped, and strongly mesio-distally reduced upper lateral incisors. Acta Odontol Scand 1969;27:563-575. https://doi.org/10.3109/00016356909026309
  25. Albashaireh ZS, Khader YS. The prevalence and pattern of hypodontia of the permanent teeth and crown size and shape deformity affecting upper lateral incisors in a sample of Jordanian dental patients. Community Dent Health 2006;23:239-243.
  26. Lai PY, Seow WK. A controlled study of the association of various dental anomalies with hypodontia of permanent teeth. Pediatr Dent 1989;11:291-296.