Effect of orthodontic treatment involving first premolar extractions on mandibular third molar angulation and retromolar space.

Background: Third molars present more problems than other teeth because they are the last teeth to erupt, and so it is important to assess their development when designing an orthodontic treatment plan. The aim of this study was to compare the angulation of the mandibular third molar and retromolar space before and after orthodontic treatment in cases involving first premolar extraction.

Material And Methods: 76 patients, 59 women (77.