Tooth transposition is the positional interchange of two
adjacent teeth, especially if their roots are involved.
Likewise, the development or the eruption of a tooth in a
position normally occupied by a nonadjacent tooth. It is
a rare anomaly, whose presentation among patients demanding
orthodontic treatment is very low. According to
the information available in the literature, and following a
complete and practical criteria, a model of classification
is presented in this article. There is no general agreement
regarding the treatment planning in tooth transpositions.
Therefore, it seems convenient to define treatment principles
that could be helpfull in order to properly manage
those malocclusions where the presence of a tooth transposition
is a major feature.
Some basic principles that the orthodontist must take into
account in the treatment planning of these patients are
presented. In order to illustrate the previous concepts, a
case of complete transposition of maxillary right lateral
incisor and cuspid is reported. The complete treatment
sequence is explained in detail. The transposed tooth
order was corrected. Likewise, a Class I molar and cuspid,
perfect coordination of both arches and good functional,
esthetic and occlusal result were achieved with treatment.
(Rev Esp Ortod. 1999;29(2):125-137)