CONE BEAM COMPUTED TOMOGRAPHY EVALUATION OF PERMANENT
ECTOPIC MAXILAR CANINES WITHIN BONES
Javiera F. Fuentes, Macarena C. Habash., Javiera P. Hernández.
The dental development is a complex physiologic process, related with grow and
development of other craneofacial structures. This process is even more
complicated for the permanent maxilar canines, because of the significant time
spans and the eruption way that benefits the development of alterations in this
process.
The prevalence of non erupting and ectopic canines in children between 8 and 12
years old varies within a range of 0,9% and 2%; this is why it is important to do a
carefull supervision of dental evolution.
The diagnosis of the ectopic maxilar canines within bones is based on a clinical
evaluation that can be complemented with x-ray; because the most common
problem are radicular reabsorption, that it doesn’t present any signs or symptoms.
The main objective of this study is evaluate the ectopic maxilar canine’s
characteristics and their relation with other adjacent anatomic structures it using
the CBCT.
This study was decriptive and retrospective, with cone beam images of 58 patients’
superior maxilar with an age between 12 and 35 years, these patients with missing
of one or both canines and had consulted for orthodontic treatment in Metropolitan
Region.
It was observed that 61% and 63% cases the canines crown was located palatal to
the root of the incisives, while the root was oriented to the vestibular cortical bone
in the 87 % of the cases. In the 90% of the cases canine was in contact with the
root adjacent incisive; in the 32% of these cases had radicular reabsorption; being
the severe and slight the most frequent. Between 15-17% of these canines have
an enlarged dental follicle
It was concluded that the CBCT gave information about the teeth’s position,
relation with near tooth and anatomic structures, and the state of dental follicle.
This information is fundamental for the diagnosis and treatment plan.