Patient satisfaction after treatment of Angle class II anomalies using the twin-block orthodontic appliance

Abstract

The study aims to demonstrate the efficacy of the Twin-Block device in addressing various dental issues, including overjet, overbite, mandibular retrognathism, and facial aesthetics in children. A sample of 64 patients from a clinic in Arad, comprising both treated and ongoing cases with Class II Angle dental anomalies, was examined. Exo- and endo-buccal assessments were conducted to identify functional, pathological, and physiognomy issues, followed by radiological examinations and custom Twin-Block appliances. Of the 64 patients, 39 were female and 25 were male, aged 7 to 14 years. Sixty patients completed treatment, while four discontinued due to non-compliance. All patients exhibited Angle class II malocclusion, with overjet ranging from 7 to 10 mm and overbite from 2/3 to 3/3. Cephalometric analysis revealed ANB angles between 5° and 9°, SNA angles between 83° and 85°, and SNB angles between 75° and 78°. Treatment duration varied, with 91% completing the active phase in 6-9 months, followed by maintenance (3-6 months) and retention (9 months) phases, totaling up to 18 months. In 9% of cases, treatment duration exceeded expectations by 2-5 months. Following treatment completion, 53 patients expressed high satisfaction, seven were satisfied, and four were dissatisfied due to non-compliance with Twin-Block device requirements.