Effect of Chair Position on Maximum Mouth Opening in Dentulous Patients - An Evaluative Study

MMO values displayed a gradual increase with 52.38 ± 5.65 mm (90°), 53.82 ± 5.61 mm (120°), and 54.40 ± 5.69 mm (180°). ANOVA displayed insignificance. (F (2,177) =2.03, P = 0.13). Despite a non-significant ANOVA, the Bonferroni-adjusted post hoc tests revealed significant pairwise differences ( P < 0.05) between all positions. Conclusion : Chair positions influence MMO in dentulous individuals. Fixed patient positioning is essential to ensure accuracy and reproducibility in clinical procedures and research involving MMO assessment.