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Clinical application of two methods for estimating skeletal maturity based on the evaluation of cervical vertebrae was analyzed. Lateral cephalometric and hand-wrist radiographs of 220 patients aged 9 to 16 years (107 males and 113 females) were interpreted by a calibrated examiner according to Baccetti et al. and Hassel & Farman methods, as well as by Martins method for hand and wrist bones. Correlation and Kappa (κ) intra-examiner tests were used to analyze the precision of estimates. Dimorphism between genders was investigated using Chi-Square tests (α = 0.05). High correlation coefficients (Rs > 0.70; p < 0.001) and κ indices ranging from 0.70 to 1.00 were obtained. Dimorphism was initially observed, with both methods of vertebrae assessment, at the age of 11 years. According to Baccetti et al. method, 50% of the boys were classified at the CVMS II stage (p = 0.012), while approximately 89% of the girls were at the CVMS III and CVMS IV stages. By Hassel & Farman method, 71.4% of the boys were at the Acceleration phase (p = 0.000), whereas 36.8% and 26.3% of the girls had reached the Deceleration (p = 0.011) and Maturation (p = 0.037) phases, respectively. The studied methods provided good reproducibility. There was dimorphism at the ages of 11, 12, and 13 years by Hassel & Farman method. Considering Baccetti et al. method, significant differences were found at the ages of 11 and 13 years.

Avaliação radiográfica das vértebras cervicais como método para estimativa da maturidade esquelética