Abstract
Abstract Background The present investigation was designed to determine the location and severity of root resorption associated with impacted maxillary canine teeth using cone beam computed tomography (CBCT). A secondary aim was to identify possible influencing factors. Methods The radiological reports of 183 patients, radiographed with a small-volume CBCT focussed on the impacted maxillary canine teeth, were assessed. Eighty-five patients had resorption associated with the impaction. The CBCT image datasets were viewed to determine the location and severity of the lesions. Results A total of 110 impacted maxillary canine teeth resorbed 120 adjacent teeth, including 14 premolars and one permanent molar. The apical third and palatal surface were commonly involved. Fifty per cent of the resorptive lesions were mild, 20% moderate and 30% severe. There was no significant relation between age or gender on the number, location or severity of resorption. There was a statistically significant correlation between the number of impacted canine teeth and the number of teeth resorbed, as well as the tooth type and the surface involved in the resorption. Conclusions All root levels and surfaces of teeth associated with impacted maxillary canine teeth can be resorbed to different levels of severity. Neither age nor gender influences the number, location or severity of the resorption.
Highlights
An impacted tooth is one which is unable to erupt as a result of either insufficient space in the dental arch, ectopic position of the tooth, or the presence of an obstruction such as a retained tooth, supernumerary or scar tissue.[1]
This is evident as a form of localised external root resorption in which excessive pressure from an Dental resorption is difficult to detect on plain radiographs in cases in which the hard tissue has been resorbed from the buccal or palatal root aspect.[5,13,14]
The identification and prevalence of resorption related to an ectopic maxillary canine has been variously estimated at 0.6–0.8% or 48%, using plainfilm radiography or conventional computed tomography (CT), respectively.[5,12,15]
Summary
An impacted tooth is one which is unable to erupt as a result of either insufficient space in the dental arch, ectopic position of the tooth, or the presence of an obstruction such as a retained tooth, supernumerary or scar tissue.[1]. A significant consequence of an impacted tooth is the occurrence of pressure resorption of adjacent teeth This is evident as a form of localised external root resorption in which excessive pressure from an Dental resorption is difficult to detect on plain radiographs in cases in which the hard tissue has been resorbed from the buccal or palatal root aspect.[5,13,14] the resorptive process is Australian Orthodontic Journal Volume 31 No 1 May 2015. The present investigation was designed to determine the location and severity of root resorption associated with impacted maxillary canine teeth using cone beam computed tomography (CBCT). Conclusions: All root levels and surfaces of teeth associated with impacted maxillary canine teeth can be resorbed to different levels of severity. Neither age nor gender influences the number, location or severity of the resorption. (Aust Orthod J 2015; 31: 49–58)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
