A CLINICAL CONSIDERATION ON THE TEETH TRANSPOSITIONS

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Journal of the Korean Academy of Pediatric Dentistry 1999;26(1):38-43.
Published online February 28, 1999.

A CLINICAL CONSIDERATION ON THE TEETH TRANSPOSITIONS

치아전위의 임상적 고찰

김승미, 정태성, 김신

부산대학교 치과대학 소아치과학교실

Abstract

Tooth transposition is the phenomenon in which two teeth in the dental arch are exchanged. The tooth most frequently involved in transposition is the permanent maxillary canine, especially with the first premolar. The etiology of transposition is still an enigma. Interchange of tooth germs, migration during eruption, genetic factor, local pathologic factors may be suggested as possible etiologic factors. There are three main options for treatment, which are the extraction of one of the transposed teeth, the alignment in the transposed position, the orthodontic movement of the teeth to their correct positions. If complete transposition occurred especially in mandible, alignment of teeth in the transposed position followed by occlusal reduction and esthetic restoration is usually recommended. The presented two-case report will describe the maxillary canine to the first premolar and to lateral incisor transposition with associated peg lateralis and retained primary canines. Although alignment the transposed teeth in original position is ideal treatment, it companies many complication as root resorption, alveolar bone destruction, gingival deheisence, etc. Therefore the treatment procedures in these case was relative cost-benefit effective method to both clinician and patients.

Key Words: eruption, guidance, occlusion, transposition