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    Cervical vertebral and dental maturity in Turkish subjects
    (Mosby-Elsevier, 2007) Basaran, Guevenc; Oezer, Toeruen; Hamamci, Nihal
    Introduction: The aim of this study was to investigate the relationships between the stages of calcification of teeth and the cervical vertebral maturity stages in Turkish subjects. Methods: A retrospective cross-sectional study was designed. The final study population consisted of 590 Turkish subjects. Statistical analysis of the data was performed with computer software. Spearman rank order correlation coefficients were used to assess the relationship between cervical vertebral and dental maturation. For a better understanding of the relationship between cervical vertebral maturation indexes and dental age, percentage distributions of the studied teeth were also calculated. Results: Strict correlations were found between dental and cervical vertebral maturation of Turkish subjects. For males, the sequence from lowest to the highest was third molar, central incisor, canine, first premolar, second premolar, first molar, and second molar. For females, the sequence from lowest to the highest was third molar, canine, second premolar, first premolar, central incisor, first molar, and second molar. Conclusions: Dental maturation stages can be used as a reliable indicator of facial growth.
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    Orthodontic and orthopaedic changes associated with treatment in subjects with Class III malocclusions
    (Oxford Univ Press, 2006) Kama, Jalen Devecioglu; Oezer, Toeruen; Baran, Sedat
    The aim of this study was to determine the cephalometric changes in subjects with Class III malocclusions after rapid palatal expansion (RPE) and facemask treatment. The 30 subjects presented with developing Class III malocclusions. The treatment group comprised 15 patients ( eight girls and seven boys, mean age 11 years 6 months) who had undergone RPE and facemask therapy. The control group consisted of nine girls and six boys with a mean age of 11 years 8 months. Radiographs were taken at the same time intervals for both groups, and the average treatment time was 15 months. A Wilcoxon test was used to determine significant differences before and after treatment, and a Mann-Whitney U-test to analyse differences between the treatment and control groups. In the sagittal plane, significant changes were observed in both groups. In the treatment group, the following dimensions increased significantly: A perpendicular to FHp (P < 0.001), ANS-PNS (P < 0.01), 6 perpendicular to FHp (P < 0.05); in the control group Go-Gn (P < 0.05) increased significantly. In the treatment group, SN/Go-Gn and SN/ ANS-PNS had higher values and this finding was significant (P < 0.05). Managing developing Class III malocclusions with RPE and maxillary protraction presents favourable results, such as vertical and sagittal displacement of point A.