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Year : 2018  |  Volume : 52  |  Issue : 1  |  Page : 12-16

A cone beam computed tomography-based evaluation of root length and the frequency of its dilaceration in impacted mandibular canines: A retrospective study

1 Prof, Department of Orthodontics, PDMDCRI, Bahadurgarh, Haryana, Uttar Pradesh, India
2 Senior Consultant, Department of Radiology, BRD Medical College, Gorakhpur, Uttar Pradesh, India

Correspondence Address:
Dr. Shikha Jain
Flat No. 105, Vasudha Apartments, Rohini, Sector 9, New Delhi - 110 085
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jios.jios_1_17

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Objective: The aim of this investigation was to evaluate root length and the frequency of its dilaceration in impacted mandibular canines. Materials and Methods: This retrospective, observational, split-mouth study evaluated cone-beam computed tomographic scans of the mandibular dentition of 27 individuals (mean age: 15.7 ± 1.9 years standard deviation) with unilaterally impacted permanent mandibular canines. While unilaterally impacted mandibular canines formed the impaction group (IG), the homonym completely erupted mandibular canines formed the control group. The two groups were compared for the mean root length and the frequency of root dilaceration of the mandibular canines. This was done using paired t-test and Chi-square test (or Fischer's exact test), respectively. Results: The mean root length of the impacted canines was significantly shorter than the homonym teeth (P < 0.05). The incidence of dilaceration was significantly higher in IG (P < 0.05). Conclusion: According to the results of this study, impacted permanent mandibular canines demonstrate developmentally shorter roots and higher incidence of root dilaceration in contrast to the completely erupted homonym canines.

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