Validity of demirjian and nolla methods for dental age estimation for Northeastern Turkish children aged 5-16 years old

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Nur B., Kusgoz A., Bayram M., Celikoglu M., Nur M., KAYIPMAZ S., ...More

MEDICINA ORAL PATOLOGIA ORAL Y CIRUGIA BUCAL, vol.17, no.5, 2012 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: 5
  • Publication Date: 2012
  • Doi Number: 10.4317/medoral.18034
  • Journal Name: MEDICINA ORAL PATOLOGIA ORAL Y CIRUGIA BUCAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Dental age, demirjian method, nolla method, chronological age, CHRONOLOGICAL AGE, APPLICABILITY, MATURITY, TEETH
  • Akdeniz University Affiliated: No

Abstract

Abstract

Objective: To evaluate the applicability of Demirjian and Nolla methods for northeastern Turkish population. 

Material and Method: A retrospective study was performed on panoramic radiographs of 673 subjects aged 5-15.9 years. The mean dental age ( DA) according to the Demirjian and Nolla methods were compared to the mean chronological age ( CA). 

Results: The mean CA of the study sample was 10.37 +/- 2.90 and 10.03 +/- 2.81 years for females and males, respectively. Using the Demirjian method, the mean estimated DA was 11.26 +/- 3.02 years for females and 10.87 +/- 2.96 years for males. For Nolla method, the mean estimated DA was 9.80 +/- 3.41 and 9.53 +/- 3.14 years for females and males, respectively. The mean differences between the CA and DA according to the Demirjian and Nolla methods were 0.86 and -0.54 years for total study sample. 

Conclusion: Nolla method was found to be a more accurate method for estimating DA in northeastern Turkish population.

Objective: To evaluate the applicability of Demirjian and Nolla methods for northeastern Turkish population.