Submitted: 07 Feb 2017
Revised: 06 May 2017
Accepted: 30 Jul 2017
First published online: 27 Dec 2017
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Avicenna J Dent Res. 2017;9(4):2-2.
doi: 10.5812/ajdr.12510
  Abstract View: 75
  PDF Download: 72

Research Article

Dental Age Estimation of 6-14-Year-Old Guilanian Children Using Demirjian’s Method

Seyedeh Tahereh Mohtavipour 1, Aliehsadat Javadzade 1, Seyedeh Saeede Mohtavipour 2, Somayeh Nemati 1 * ORCiD, d Alaleh Valed Saravi 3

1 Department of Oral and Maxillofacial Radiology, Dental Faculty, Guilan University of Medical Sciences, Rasht, IR Iran
2 Department of Pediatric Dentistry, Dental Faculty, Guilan University of Medical Sciences, Rasht, IR Iran
3 Dentist
* Corresponding author: Somayeh Nemati, Assistant Professor of Dentomaxillofacial Radiology, Dental Faculty of Guilan, University of Medical Sciences, Rasht, IR Iran. Tel: +98-9111843152, E-mail: Email:


Background: Developing teeth may be evaluated based on the degree of tooth development or the stage of tooth eruption.

Objectives: This study aimed to assess the accuracy of Demirjian’s method for dental age estimation in a group of Guilanian children.

Methods: Panoramic radiographs of 390 Guilanian children aged 6 - 14 years were analyzed based on Demirjian’s method. Dental age was compared with chronological age using a paired t-test. The difference between the estimated age and chronological age was examined by Mann Whitney test in males and females.

Results: The mean difference between the dental age and chronological age was 0.84 in females and 0.82 in males (about 8 months). The difference in this regard between males and females was not significant. The difference between the chronological and dental age was significant in all age groups except for 13 - 13.99 years old.

Conclusions: Demirjian’s method may not be accurate enough for dental age estimation of Guilanian children and specific standards for dental age assessment should be developed for this population.

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