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Prevalence and Pattern of Impacted Mandibular Third Molar: An Institution-Based Retrospective Study
Hiren Patel1, Haren Pandya1, Hitesh Dewan1
1Department of Oral and Maxillofacial Surgery, Faculty of Dental Science, Dharmsinh Desai University, Nadiad, Gujarat India.
Journal of Maxillofacial and Oral Surgery
|December 2, 2024
Summary
This study analyzed impacted mandibular third molars in central Gujarat patients using Pell and Gregory and Winter classifications. Mesioangular impaction was most common, with no significant side differences.
Area of Science:
- Dentistry
- Oral and Maxillofacial Surgery
- Radiology
Background:
- Classifications of impacted teeth, like Pell and Gregory and Winter, are crucial for understanding third molar positioning.
- Assessing depth and bone coverage aids in surgical planning and predicting complications.
Purpose of the Study:
- To evaluate the position of impacted third molars using Pell and Gregory and Winter classifications.
- To analyze impaction patterns in a central Gujarat patient population.
Main Methods:
- A retrospective study of 1000 orthopantomograms (OPGs) with bilateral impacted mandibular third molars.
- Evaluation of impaction angulation, eruption level, and space availability.
Main Results:
- Mesioangular impaction was the most frequent angulation (47.5%), followed by distoangular (26.2%).
- The most common impaction level was B (50.2%), followed by A (30.1%) and C (19.7%).
- Space availability was predominantly Type II (48.5%), followed by Type I (35.3%) and Type III (16.2%).
Conclusions:
- Mesioangular impaction is prevalent in the mandible among the studied population.
- Impaction at Level B with Type II space availability is common.
- No significant differences were observed between right and left sides for impaction patterns.
