Three-Dimensional Evaluation of Impacted Mandibular Canines and Adjacent Structures Using Cone Beam Computed...

Area of Science:

• Dentistry
• Oral and Maxillofacial Surgery
• Radiology

Background:

• Impacted mandibular canines are a common clinical concern.
• Evaluation of adjacent dentoalveolar structures is crucial for treatment planning.

Purpose of the Study:

• To assess impacted mandibular canines and related dentoalveolar structures using cone beam computed tomography (CBCT).
• To investigate the relationship between canine impaction, follicle size, root resorption, and anatomical structures.

Main Methods:

• CBCT scans of 54 impacted mandibular canines were analyzed.
• Measurements included canine position, follicle diameter, proximity to mental foramen and incisive canal, adjacent tooth resorption, arch widths, and canine mesiodistal width.

Main Results:

• 14.8% of adjacent teeth showed resorption; no significant correlation with follicle size.
• Cortical bone perforation occurred in 83.3% of cases.
• Significant differences in mesiodistal canine width and arch length were noted between impacted and non-impacted sides.

Conclusions:

• Follicle size does not correlate with root resorption in adjacent teeth.
• Impacted mandibular canines frequently cause cortical bone perforation and can be near vital anatomical structures.
• Differences in arch length and canine width, not transversal width, may impact arch symmetry and require consideration in treatment planning.