A comparison of methods for predicting the size of unerupted permanent canines and premolars |
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Authors: | Legović Mario Novosel Andrea Skrinjarić Tomislav Legović Asja Mady Barbara Ivancić Natasa |
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Affiliation: | Department of Orthodontics, School of Dental Medicine, University of Rijeka, Croatia. mario.legovic@pu.t-com.hr |
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Abstract: | The aim of this study was to examine the reliability of eight methods for determining the mesio-distal crown diameters (MDD) of the permanent canines and premolars (C, P(1), and P(2)). The study models of 120 children (60 boys and 60 girls) aged from 14 to 18 years treated in orthodontic clinics were measured using Seipel's method, with callipers accurate to 0.01 mm. The correlation coefficients were determined between the MDD of C, P(1), and P(2) measured on the study models and the sums calculated using various other methods. The correlation coefficients derived by comparison with the methods of Moyers, Tanka and Johnston, Droschl et al., Legovi? and Hauz, and Berendonk-Nawrath showed a tendency to over-estimate the MDD of C, P(1), and P(2), while the regression methods of Gross and Hasund, Bachmann, and Tr?nkmann et al. under-estimated the values. Bachmann's method appeared to give the most reliable results. |
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