Transposition has been described as an interchange of position of permanent teeth and is a relatively rare dental anomaly. This article presents an anterior cross bite case with bilateral canine-first premolar transposition. After correction of anterior cross bite, both sides of upper canine were tracted to mesial side. The upper first premolars were extracted because there was insufficient space. Treatment was finished when Class II molar relationship was reached. As a result, good, stable occlusion was achieved. We will continue to observe this case, especially the occlusal relationship.
上顎犬歯と第一小臼歯の移転が両側に生じた症例
