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ORIGINAL ARTICLE
Year : 2017  |  Volume : 2  |  Issue : 1  |  Page : 24-27

The incidence of types of mandibular third molar impactions in different skeletal face types: A clinical study


Department of Oral and Maxillofacial Surgery, Resident Dentist, Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, India

Correspondence Address:
Arshiya Shehanaz
Saveetha Dental College and Hospitals, Poonamallee, Chennai, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijofr.ijofr_11_16

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Introduction: It is seen that the failure of mandibular third molars to erupt is most affected by a lack of space in the alveolar arch between the distal of the second molar and the ascending ramus. Therefore, an appreciation of mandibular and facial growth may assist in predicting mandibular third molar eruption. Aim: The reason for this study is to appreciate the growth of mandible and facial growth which may assist in predicting mandibular third molar eruption as the lack of space in the alveolar arch between the distal of the second molar and the ascending ramus has been associated with failure of mandibular third molars to erupt. Materials and Methods: A list of patients who had visited the outpatient department at the Saveetha Dental Hospital of Chennai in April and May 2016 were sourced. The facial type determined by the facial index is calculated using an equation where; (i) Brachyfacial: Smaller than 80.0%–84.9%, (ii) Mesofacial: 85.0%–89.9%, (iii) Dolichofacial: 90.0%–95% or greater. Results: The incidence of horizontal impactionwas higher in dolichofacial patients when compared to people with mesofacial profile. The incidence of mesioangular impaction was seen to be higher in mesofacial patients. Conclusion: In this study the classification of impaction describes only the impaction status at the time of taking the radiograph, and not the potential final status of the third molar. Further research may be done to assess whether the changes in impaction status are more likely to be seen in dolichofacial or brachyfacial subjects.


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