Frequency of dilaceration in a mexican school-based population

Abstract

BackgroundThe aim of this study was to record the frequency of dilaceration in patients attending our institution and to analyze the possible associated factors.Material and MethodsOrthopantomograms from all patients attended in our institution were reviewed and those cases of dilaceration were selected. Documented data were age, gender, diagnosis, location and involved teeth. Data on possible etiological factors was also recorded.Results125 dilacerated teeth in 99 patients were found. Dilacerations were more commonly detected in females and in maxillary teeth. Maxillary 2nd bicuspids and lateral incisors were the more commonly affected teeth and were more common in teeth with predecessors (anterior teeth and bicuspids). Traumatic episodes and caries of the predecessor teeth was mentioned but never were related with affected teeth.ConclusionsData from the studied population are different compared to previously published studies. Our results support the point of view that the occurrence of dilacerated teeth could be related to limited availability of space to allocate the erupting teeth in the dental arch and perhaps to the possibility of the tooth to rotate, preventing eruption. Key words:Developmental alterations, dental developmental alterations, root dilaceration.

Dental developmental alterations in patients with dilacerated teeth

“…Dilaceration is a well-known DDA involving change in the normal alignment of the root and the crown. Features of this entity are not well understood and present data on its origin, frequency, gender preference and most commonly involved teeth is controversial (4).…”

“…In a previous study, we reported the frequency of dilacerated teeth in the population attended in our institution (4). During the review of these radiographic material we were able to detect that several cases of dilacerated teeth were associated with other dental developmental alterations (DDAs).…”

Dilacerated distolingual root of mandibular first molar mimicking cementoblastoma: case report by radiographic findings

“…A second theory deals with a developmental disorder of uncertain origin when a traumatic factor wass unknown. 1,3,6 Careful radiography interpretation could detect changes in the normal structure of roots in the mandibular molar. To avoid difficulties or canal loss during root canal therapy, an accurate identification of the third root was required.…”

“…Tomes in 1848 was the first to report dilaceration as a seldom seen developmental change of the dental root. [1][2][3] Dilaceration occurs when the development of the tooth is disrupted, resulting in a steep bend or curve in the crown or root. 4 When the mesial or distal tilt of the root is equal to or exceed 90 degrees in regard to the tooth or root axis, Hamasha et al (2002) and Malcic et al (2006) consider the tooth to be dilacerated.…”

“…Some individuals may have bilateral dilacerations. [1][2][3] In some cases, dilaceration of root is found as an incidental finding when taking a radiography examination, especially when diagnosing a case for root canal preparation. Researchers have investigated and developed techniques to determine the curvature of root canals in periapical radiographs for many years, utilizing either the angle or the radius of curvature method.…”