Management of occlusal and developmental disturbances resulting from an ankylosed maxillary second primary molar:...

This case report presented the orthodontic management of an ankylosed primary molar. Trauma to the maxillary right second primary molar resulted in the infraocclusion of the affected tooth as well as the mesial tipping of the adjacent first permanent molar and displacement of the permanent successor. After extraction of the ankylosed primary molar, orthodontic therapy was performed to upright the adjacent permanent molar and to gain the lost space of its permanent successor. By the application of orthodontic mechanics, the maxillary right permanent first molar was uprighted and the maxillary right permanent second premolar was brought to its proper position.