Effects of Forsus Fatigue Resistant Device Therapy Compared With Twin Block Therapy
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2018, Vol 3, Issue 2
Abstract
Background: Class II orthopaedic / functional appliances are used for correction of mandibular deficiencies where they cause mandibular repositioning by moving the mandible forward and / or downward. Aims and Objectives: To evaluate and compare the dento-alveolar, skeletal and soft tissue changes by using lateral cephalograms in skeletal Class II subjects with retrognathic mandible who were treated either with the Forsus fatigue resistant device or Twin Block. Methodology: Standardized pre-treatment and post-functional treatment lateral cephalograms of total 30 subjects having skeletal Class II was obtained (15 subjects in each group).The data was statistically compared by using paired and independent sample âtâ test. Results: The Twin Block group caused more effective mandibular advancement than Forsus group while the Forsus showed more maxillary restriction than Twin Block. Thus, anteroposterior correction was significant in both groups. However, for the skeletal changes there was no significant difference in the effectiveness between the two groups. Upper incisor retraction was more in Forsus group over the Twin Block appliance, which was statistically significant between the two groups. The upper molars intruded in the Forsus group and extruded in Twin Block group. Both groups helped in improving soft tissue convexity significantly. These soft tissue changes reflected the dento-alveolar and skeletal changes. However, there was no significant difference in effectiveness between the two groups regarding soft tissue changes. Conclusion: Both the appliances were equally effective in correcting skeletal Class II malocclusion in growing children by forward positioning of the mandible and by restriction of maxillary growth.
Authors and Affiliations
Dr. Priyanka. S. Udeshi
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