Evaluation of tooth development with the use of panoramic radiography based on Nolla's method in 8-14-year-old individuals in Babol
Abstract:
Introduction
Precise evaluation of dental developmental stages is a part of diagnosis and treatment of children's diseases and is also used in forensic dentistry. Of radiological methods to estimate dental age in children, Nolla's method was preferred in the present study. However, Nolla’s standards have been derived from the American population and may not be applicable to other populations. The aim of this study was to determine chronological and dental ages based on diagnostic technique of Nolla in a group of Iranian children in Babol, aged 8 to 14 years.
Materials and Methods
In this descriptive/analytical cross-sectional study, dental development was evaluated based on Nolla’s method on 420 panoramic radiographic images of children aged 8‒years without any developmental anomalies. The children were assigned to 14 groups based on sex and chronological age. The dental ages of 32 teeth in each case were estimated by two specialists based on Nolla's developmental stages. Data were analyzed with SPSS 16 using paired t-test (α = 0.05).
Results
In this study the dental ages of males were closer to those depicted by Nolla compared to females and with aging the derived data became more consistent with Nolla’s estimates (p value > 0.05). Nearly in all the teeth, the mean dental age of males was lower than that of females (p value > 0.05).
Conclusion
The standards of Nolla on American children need some modifications and new standards to be used for children in Babol, Iran.
Language:
Persian
Published:
Journal of Isfahan Dental School, Volume:13 Issue: 1, 2017
Pages:
91 to 98
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