Maxilla

Type

Transposition

Description

Mx.C.p1

Canine - first premolar

Canine in buccal ectopia, rotated mesiobuccally, wedged between premolars

First premolar titled distally and rotated mesiopalatally

The temporary canine is also frequently found, persisting on the arch causing a lack of temporary space on the maxillary arch.

Mx.C.I2

Canine - lateral incisor

Canine erupted mesially and buccally or completely mesially to the lateral incisor

Mx.C. to M1

Canine - first molar

Canine occupying site of prematurely lost deciduous first molar

Mx.I2.I1

Lateral incisor - central incisor

Complete positional interchange of lateral and central incisors

Mx.C. to I1

Canine - central incisor

Canine developed in space left vacant by premature loss of central incisor

This transposition is characterized by the loss (absence) of the permanent central incisor on the ipsilateral side, which allows the differential diagnosis with Mx.C.I2 in which the central incisor is present.

Mandible

Mn.I2.C

Canine - lateral incisor

Lateral incisor developing with severe distal tilt and rotation, crupting in site normally occupied by first premolar and canine