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RESEARCH ARTICLE
Year : 2012  |  Volume : 24  |  Issue : 3  |  Page : 173-176

Prevalence of mandibular third molar impaction and agenesis: A radiographic South Indian study


1 Senior Lecturer, Department of Oral Pathology, Thai Moogambigai Dental College, Chennai, Tamil Nadu, India
2 Reader, Department of Oral Pathology, Thai Moogambigai Dental College, Chennai, Tamil Nadu, India
3 Professor, Department of Oral Pathology, Thai bloogambigai Dental College, Chennai, Tamil Nadu, India
4 Reader, Department of Oral Surgery, Adhiparasakthi Dental College and Hospital, Kancheepuram, Tamil Nadu, India

Correspondence Address:
Ananthalakshmi Ramamurthy
Senior Lecturer, Department of Oral Pathology, Thai Moogambigai Dental College, Chennai, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


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Aims and objective: To evaluate the prevalence of (i) impaction of mandibular third molar, (ii) agenesis of mandibular third molar and (iii) angulation of impaction radiographically. Materials and methods: The sample size consists of 1,005 patients above 18 years. The orthopantomograph of the patients are interpreted for eruption/pattern of impaction/agenesis of mandibular third molar. Conclusion: Bilateral impaction of mandibular third molar is common than unilateral impaction. Agenesis of mandibular third molar is seen in 122 to 12.5% of patients. Mesioangular is the commonest pattern of impaction No sex predisposition is in prevalence of impaction. Agenesis is seen more commonly in females than males.


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