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The Fixed Functional Appliances in Class II Malocclusion: A Clinical Performance Comparison
Remmiya Mary Varghese1, Aravind Kumar Subramanian2, Joji Alex3
1Associate Professor, Department of Orthodontics and Dentofacial Orthopaedics, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamilnadu, 600077.
Background:
Class II malocclusion, which impact 20-25% of the population worldwide, stem from either inadequate development of the mandible or excessive development of the maxilla. Typically seen among young individuals, initiating treatment early can modify growth patterns and enhance results. Treatment Options include growth modification, dental camouflage, and surgery. Fixed functional appliances aid in better treatment outcome without relying on patient compliance. The aim of current study is to evaluate the efficiency of Forsus Fatigue Resistant Device, Powerscope, and Twin Force Bite Corrector in treating class II malocclusion.
Material And Methods:
A prospective study at Saveetha Dental College (Jan 2022-Jan 2023) examined 60 patients (ages 14-16) with skeletal class II malocclusion. Divided into three groups, participants received treatment with Forsus Fatigue Resistant Device, Powerscope, or Twin Force Bite Corrector. Outcomes were assessed via lateral cephalograms before and after (6-9 months) treatment.A prospective study conducted at Saveetha Dental College (Jan 2022-Jan 2023) examined 60 patients (ages 14-16) with skeletal class II malocclusion. Participants were divided into three groups and treated with either the Twin Force Bite Corrector, Powerscope, or the Forsus Fatigue Resistant Device. Lateral cephalograms were used to evaluate the outcome both before and after the treatment (6-9 months).
Results:
Skeletal parameter changes such as SNB, ANB, Go-Gn, Jaraback ratio, and IMPA, were significant across groups (p<0.05), with TFBC showing the most efficacy in ANB (-4.69mm) change. Linear parameters like LAFH and PFH also showed significant changes, particularly in groups I and III. In dental parameters, significant changes were observed in angular measures like L1-SN, L1-NB, and interincisal angles, and linear measures such as L1-NB linear and L6-NB linear.
Conclusions:
Comparing the favourable outcome of the parameters TFBC is effective among the other treatment but the change in SNA and maxillary length implies a continuous and consistent follow-up and evaluation is required clinically for a favourable outcome.
