Objective: Among orthodontic anomalies, tooth transpositions are considered to be one of the most challanging cases to be treated. If not corrected, unsatisfactory results may occur both functionally and esthetically. The aim of this case report is to reveal the esthetic and functional results in different transpositon cases.
Methods: First subject: A 11-year old female patient with skeletal and dental class II relation was referred to our clinic for mandibular lateral incisor - canine transposition. On account of correcting the transposition, a cortocotomy and bone graft on the lingual surface of lower right incisors and decortication in the eruption path of canine were performed before orthodontic treatment. Lingual root torgue and inset were applied to lower right lateral incisor to position it lingually. Afterwards canine was distalized to its correct position. In this manner a symmetric and functional Class I occlusion was achieved.
Second subject: A 15-year old female patient with skeletal and dental class I relation showed maxillary lateral incisor - canine transposition and central impaction. The central impaction was due to the alteration in the eruption path and deficient root formation. Because of the lack of sufficient bone at the vestibule of lateral incisor, the transposition was not corrected but protetically restored. Central incisor was extracted and after bone grafting was restored by a dental implant.
Conclusions: If the case is appropriate, correcting the transposition provides both esthetic and functional results. Either protetical restoration which diminishes the treatment time can also be a treatment option.