A Retrospective Cephalometric Study Examining the Angular Relationship between the Sella - Nasion Plane and the Frankfort Horizontal Plane in the Maratha Population

Mrunali Tone, Sandeep Jethe, Varsha Merani, Shailesh Dongre, Arun Mhaske, Suyog Shendage

Abstract: This study examines the FH-SN Frankfort Horizontal-Sella Nasion angle, a crucial parameter in orthodontic diagnosis and treatment planning, focusing on a population from Pune. Utilizing lateral cephalograms, the research aims to establish the average FH-SN angle in this demographic, while also exploring potential gender-based differences. The study, conducted at D Y Patil Dental School, analyzed cephalograms from 120 participants, evenly distributed across genders, with no craniofacial abnormalities. Findings revealed an average FH-SN angle of 7.67 3.29, closely aligning with the traditionally accepted 7. Interestingly, while females exhibited a slightly higher FH-SN angle than males, this difference was not statistically significant. The studys implications for cephalometric analysis and orthodontic diagnosis, especially concerning individual variations in the FH-SN angle, are discussed, highlighting the need for further longitudinal research and the importance of multiple reference planes in cephalometric evaluations.

Keywords: Cephalometry, FH-SN Angle, Orthodontic Diagnosis, Gender Differences, Pune Population