Abstract
Tooth transposition is a rare dental anomaly which is characterized by an interchange in the position of two adjacent permanent teeth on the same side of the dental arch. Tooth transpositions occur less often in the mandibular arch than in the maxilla and with less variety. Early diagnosis and detection of a developing transposition is based on both clinical and radiographic examination. When detected early, interceptive treatment may resolve the developing problem. This paper discusses a patient who presented with a mandibular permanent lateral incisor-canine transposition.