Authors : Rahul Panelia, Preeti Bhardwaj, Nitin Dungarwal, Piyush Bolya, Rutvik Trivedi
DOI : 10.18231/j.jco.2019.023
Volume : 3
Issue : 3
Year : 2019
Page No : 18-24
Background & Objectives: Glenoid Fossa position plays an important role in the establishment of different craniofacial patterns. The purpose of this study was to verify the position of the glenoid fossa in subjects with different sagittal patterns, to assess the correlation between the position of Glenoid Fossa and different sagittal skeletal patterns and to assess the correlation between the position of the glenoid fossa and the functional occlusal plane.
Methods: A lateral cephalometric study was carried out on 200 subjects aged 18-45 years who were classified according to skeletal sagittal relationships using ANB angle into four groups (Cl. ? =50, Cl. ?? Div.1 =50, Cl. II Div.2 = 50, Cl. ??? =50 subjects). Cephalometric analysis comprised both sagittal and vertical measurements for the assessment of the position of the glenoid fossa in relation to surrounding skeletal structures.
Results: The results revealed that in sagittal skeletal relation, the glenoid fossa position was more posterior in skeletal Class II Div.2 when compared with skeletal Class II Div.1, Class I and Class III; while in the vertical plane, the position of the glenoid fossa was more cranial in skeletal Class III when compared with skeletal Class I, Class II Div.1 and Class II Div.2. On the other hand, there was no correlation between the position of the glenoid
fossa and the functional occlusal plane. Interpretation & Conclusion: In conclusion, subjects with skeletal Class II Div.2 show a more posterior position of the Glenoid Fossa in relation to cranial base when compared to subjects with skeletal Class II Div.1, Class I and Class III regarding the sagittal plane and there is no valuable diagnostic information from the functional occlusal plane in relation to the position of the glenoid fossa.
Keywords: Glenoid fossa; Class I malocclusion; Class II Div.1 malocclusion; Class II