Authors : Dr. Priyanjali Bharmal; Dr. Kishor Chougule; Dr. Sangeeta Golwalkar; Dr. Vikranth Shetty

Volume/Issue : Volume 11 - 2026, Issue 9 - September

Google Scholar : https://tinyurl.com/43cxkwf5

DOI : https://doi.org/10.38124/ijisrt/26sep873

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : Fixed functional appliances such as Forsus are widely used for Class II correction and produce both skeletal and dentoalveolar changes that may influence occlusal-plane inclination.The occlusal plane is an important determinant of dentofacial aesthetics and function, and Class II facial patterns generally exhibit a steeper inclination.Although both clockwise and anticlockwise occlusal-plane rotations have been reported, evidence regarding the specific effects of Forsus therapy remains limited.  Method: The sample comprised 70 subjects: 35 treated with Forsus FFRD combined with fixed orthodontic mechanotherapy and 35 treated with fixed mechanotherapy alone as controls. Occlusal-plane inclination was assessed using OP-SN and OP-MP angular measurements. Changes from T1 to T2 were evaluated to determine the effect of Forsus therapy on occlusal-plane inclination.  Results: In the Forsus group, SN-OP showed predominantly clockwise rotation (34/35), whereas OP-MP showed predominantly counterclockwise rotation (31/35). In the Control group, SN-OP showed 18 counterclockwise, 13 clockwise, and 4 cases with no rotation, while OP-MP showed predominantly clockwise rotation (29/35). The intergroup difference in the frequency and direction of occlusal-plane rotation was statistically significant (p < 0.001).  Interpretation and Conclusion: These findings indicate that Forsus treatment produced a consistent clockwise SN-OP and counterclockwise OP-MP rotational pattern, unlike the more variable control response.

Keywords : Forsus, Occlusal Plane.

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