Department of Dentistry, Bhojia Dental College and Hospital, IndiaFulltext PDF
Introduction: The mandibular third molar impaction is due to the inadequate space between the distal of the second mandibular molar and the anterior border of the ascending ramus of the mandible. Aim: To correlate the facial parameters with mandibular third molar impaction in various sagittal skeletal malocclusions. Materials and Method: 100 Panoramic and lateral Cephalometric radiographs were included. The sample was then divided into 2 groups as Group 1 (N=49, Skeletal Class I malocclusion) and Group 2 (N=51, Skeletal Class II malocclusion). Third molar impaction was classified on the basis of winter’s classification. Various skeletal facial parameters were recorded for both the groups and analyzed statistically. Result: The mean value of Mandibular corpus length, Gonial angle and Ascending ramus length was increased in Group 1 than in Group 2 and was found to be statistically non-significant (p=0.25), (p=0.85) and (p=0.78) respectively whereas Occlusal plane angle and facial axis was found to be increased in Group 2 than in Group 1 and was found to be statistically non-significant (p=0.59), (p=0.80). When Winter’s classification was compared between Group 1 and Group 2 it was found than Group 1 had increased Mesioangular impactions with 85.7% prevalence and Group 2 had Horizontal impactions with 14.2% and were found to be statistically non-significant. Further, regression model analysis predicted that the degree of correlation was very less (R=0.1) when winters classification was correlated with facial parameters. Conclusion: Skeletal parameters did not affect the eruption of mandibular third molars.
Third molar impaction; Class I and Class II Skeletal jaw bases; Winter’s Classification; Skeletal parameters
Rasool I. Relationship between Facial Parameters and Third Molar Impaction in Various Sagittal Malocclusions - A Radiographic Study. J Dent Oral Biol. 2022; 7(2): 1191. ISSN: 2475-5680.