[The vertical position and axial inclination of the wisdom teeth. An x-ray study].

In a roentgenographic study we considered the question as to whether the vertical position and inclination of third molars is influenced by orthodontic treatment. Normal inclination and correct vertical relationship of the third molars to the occlusal plane was found more frequently in those patients who received orthodontic treatment - for space closure following extraction or agenesis. There is less likelihood of impacted/displaced third molars in cases where extractions have been carried out as posteriorly in the arch as possible and the resulting space (including space from congenitally absent teeth) has been closed. In Angle class II malocclusions, the maxillary third molar erupted more often into a good position, whereas in the class III malocclusions the mandibular third molars were more reliable.