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The degree of mineralization of upper canine and lower premolars in Class II division 2 and Class III patients

AIMS: To determine the development of the upper canines and lower premolars in patents with a Class II division 2 (Class II/2) and Class III malocclusions. SUBJECTS AND METHOD: One hundred and forty six subjects (77 with Class II/2 and 69 with a Class III malocclusion). Chronological age of the entire sample was 9.8 ± 1.8 years. The analysis was performed on dental pantomographs and the development of the upper canine and lower premolars was determined using Demirjian’s method. The data were statistically analysed using the Mann-Whitney U test and the analysis of variance Friedmann ANOVA. RESULTS: There was significantly a higher degree of mineralization of the germs of upper canines and a lower degree of lower premolars in Class II/2 patients and a lower degree of the upper canines and a higher degree of lower premolars in Class III patients. CONCLUSION: Sagittal relationships affect the degree of the mineralization during the development of the permanent teeth.

teeth mineralization, Class II/2, Class II

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