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The relationship between condylar asymmetry and handedness of the patients with temporomandibular disorders (TMD) and patients with no signs or symptoms of TMD was investigated. The experimental group consisted of 25 patients aged 15 to 52 years who were referred for treatment of TMD. The mean age of this group was 26.24 years. The control group consisted of 25 patients aged 14 to 52 years (mean age: 26.16 years). Methods: The formula by Habets et al. 14 was used to express the symmetry between the condyles and the rami on the orthopantomogram (OPG) image. Differences between bothgroups and subgroups (condyle, ramus, condyle plus ramus) regarding symmetry were calculated with the Student's t-test. Results: The mean of condylar asymmetry was found to be 11.11 ± 11.03% in the TMD group. However, in the control group, the mean of condylar asymmetry was found to be 8.36 ± 6.27%. No statistically significant differences were found between condylar asymmetry in both groups (p>0.05). Conclusions: No statistically significant differences were found between condylar asymmetry index in patients with TMD according to myogenous problems and in patients with no signs or symptoms of TMD.

This investigation was undertaken to compare the mesio-distal crown dimensions of the permanent teeth in subjects with and without fluorosis. For this study, 25 pairs of study models cast immediately from alginate impressions of children from each of the two groups were evaluated. Their mean ages were 13.9 +/- 1.6 and 13.9 +/- 1.4 years, respectively. A dental vernier calliper was used to record the maximum mesio-distal dimensions. Analysis of the study models showed that there were no statistically significant differences between the left and right sides (P > 0.05). The results indicated that the mesio-distal crown diameters were consistently larger in the subjects with non-fluorotic permanent teeth. With the exception of the mandibular first premolars, there were no statistically significant differences in the mesio-distal crown diameters of the two groups.

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