[Evaluation of the head posture in orthodontic malocclusions].

Recently the effect of the head posture on craniofacial and dentoalveolar morphology had been an interesting research topic. Head posture was defined as the craniovertical angle formed between the head in self-balanced position and the true vertical. A foreward bending deviation of the head was termed flexion, and a backward bending deviation of the head was termed extension. In this study, total of 60 subjects with Angle class 1, class II/1 and class III malocclusion, who did not have orthodontic treatment previously and who did not have any sight or nose breathing problems, without vertical discrepancies like openbite or extreme deep bite had been chosen. Craniovertical angle which determined the posture of the head had been measured directly from the individuals. We found a statistically significant relationship between the head posture, class II/1 and class III malocclusions.