3D Localization of Impacted Maxillary Canines and Equation of Effects on Adjacent Incisors with Cone-Beam Computed Tomography (CBCT)
Introduction:
Traditionally, many different types of radiographs were needed to localize an impacted tooth in relation to the adjacent teeth. Although those views were able to identify whether the tooth was buccal or palatal (lingual), it was still impossible to measure exactly how far way they impacted was to the roots of the other teeth and other details. However, CBCT provides elements which escape during traditional radiographic analysis and is therefore, indicated in case of impacted teeth or craniofacial structural anomalies.
Aims:
We evaluated CBCT for the 3D localization of impacted maxillary canines and effects on adjacent incisors.
Methods and Materials:
In this research 60 impacted maxillary canines with considering location, shape (with or without dilacerations), inclination, follicular size and effects on the roots of neighboring teeth were evaluated.
Result and discussion:
With CBCT, the diagnosis becomes a simple visual exercise with the image showing exactly the location of the impacted teeth and the inclination of the teeth, shape, follicular size and effects on roots of neighboring teeth.
The impaction location was 25% (15 cases) buccaly, 63.3% (38 cases) palataly and 11.66% (7 cases) in the middle portion of the bone. 41.66% (25 canines) had shown dilacerated roots.
In 41.66% (25 canines) it was normal follicular size, 38.33(23 canines) large follicular size and only 20% (12 canines) had diminished follicular size.
Adjacent root resorption was mild in 25% (15 cases), moderate in 5% (3 cases) and severe in 11.66% (7 cases).
In 58.33% (35 cases) resorption was not detected.