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Year : 2017  |  Volume : 7  |  Issue : 3  |  Page : 90-97

Dental and skeletal age estimations in Lebanese children: A retrospective cross-sectional study

1 Department of Orthodontics, Lebanese University, School of Dentistry, Beirut, Lebanon
2 Laboratoire AMIS UMR 5288 CNRS, Paul Sabatier University, and Department of Orthodontics, Faculty of Dental Surgery, Toulouse, France
3 Department of Oral Pathology and Diagnosis and Basic Science, Lebanese University, School of Dentistry, Beirut, Lebanon
4 Department of Natural Sciences, Lebanese University, Faculty of Science, Fanar, Lebanon, and State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing, Jiangsu, China

Correspondence Address:
Antoine Saade
Department of Orthodontics, Lebanese University School of Dentistry, Beirut
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jispcd.JISPCD_139_17

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Aims and Objectives: Assessing dental and bone ages is frequently required in a wide range of fields such as odontology, forensic science, as well as orthopedics. The aim of this study was to evaluate applicability of two methods of bone age assessment and two methods of dental age (DA) assessment for Lebanese children. Materials and Methods: Skeletal age (SA) of 260 orthodontic patients (124 males, 136 females divided into four groups each) was consecutively assessed using Greulich and Pyle and Fishman's SMI methods. DA was evaluated using both Demirjian's and Willem's methods. Mean age was 11.89 ± 1.38 years for males and 11.75 ± 1.58 years for females. Data were collected and statistically analyzed using the SPSS software (IBM SPSS Statistics, version 21, USA). The differences between estimated DA, estimated SA, and chronological age (CA) were compared by gender and age group. Results: Greulich and Pyle method showed nonsignificant difference with CA in male sample, while in both assessment methods, the difference between skeletal and CAs is significant in female sample. Results of Willem's method in the whole sample suggested a statistically nonsignificant difference, when compared to CA. Demirjian's method delivered higher mean value than Willem's assessment in both genders. Conclusions: Greulich and Pyle method is accurate for SA assessment in males and only in one group of females, while it significantly overestimates age in all other female groups. Willem's method is more suitable to assess DA in both genders. A strong correlation exists between both dental and skeletal assessment methods and CA.

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