Reliability of Mandibular Canine Maturation Stages in Predicting Pubertal Growth Spurt in a Sample of Egyptian Orthodontic Patients

Document Type : Original Article

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1 Department of Orthodontics, Faculty of Dental Medicine, (Boys –Cairo), Al-Azhar University

2 Department of Orthodontics, Faculty of Dental Medicine, (Boys –Cairo), Al-Azhar University

3 Department of Orthodontics,Faculty of Dental Medicine, (Boys –Cairo), Al-Azhar University

Abstract

Objective: to investigate the reliability of mandibular canine maturation stages in predicting pubertal growth spurt in a sample of Egyptian orthodontic patients.
Materials and Methods: A retrospective, cross-sectional study was carried out on the radiographic records (left lateral cephalometric, panoramic and left hand and wrist x-rays) obtained from 250 patients who were attending private clinics on Delta area, Egypt. The age was selected between 7 and 18 years. Mandibular canine calcification stages (MCC) were assessed according to Demirjian’s method for dental maturity assessment. Skeletal maturity was assessed by the ossification stages of the middle phalanx of the third finger (MP3) using Hagg and Taranger method and the cervical vertebrae maturation index (CVMI) was evaluated using Hassel and Farman method. MCC stages were statistically correlated to both MP3 stages and CVMI stages. The significance level was set at P ≤ 0.05. Statistical analysis was performed with IBM® SPSS® Statistics Version 20 for Windows.
Results: Chi-square tests have shown highly significant associations between the mandibular canine calcification stages (MCC) and both CVMI and MP3 maturation stages (p < 0.001). MCC stage F had shown a moderate correlation with MP3 FG and CVMI 2 that corresponded to the onset of pubertal growth.
Conclusions: MCC stage F can be used for prediction of the onset of pubertal growth, while prediction of the peak or the post peak periods using MCC method may be unreliable.
Key words: Pubertal growth, MP3 stages, CVMI stages, MCC stages.

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