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Objective: The current prospective study evaluated the dentoskeletal effects subsequent to Twin-Block (TB) functional treatment of skeletal Class II malocclusion accompanied with low-level laser therapy (LLLT). Materials and methods: Twenty eight pre-pubertal patients, 14 boys and 14 girls were randomly allocated to control (mean initial age 10.64±1.36 years) and laser groups (mean initial age 10.55 ±1.45 years). All patients treated with TB appliance where Gallium Aluminum Arsenide diode laser applied in one group weekly around condylar region for 12 sessions in three months with parameters; continuous mode, 635 nm, 50 mW, 4.5J/cm2, 45 seconds/point, and 11.25J total dose per side. Dentoskeletal variables were analyzed and compared within and between both groups via Cone Beam Computed Tomography (CBCT) images before (T1) and after functional therapy (T2). Results: Within each group, TB therapy resulted in significant mandibular skeletal changes (p<0.001) in both dimensions and positions with an improved skeletal profile in anteroposterior and vertical directions with substantial dentoalveolar changes (p<0.001). However, comparison of dentoskeletalT1-T2 changes between both groups showed nonsignificant differences (p>0.05). Conclusions: Combination of LLLT, with the current parameters and protocol, accomplished no considerable dentoskeletal effects subsequent to functional orthopaedic treatment of skeletal Class II malocclusion with TB appliance.

al-azhar journal of dental science

Dentoskeletal effects following Twin-Block functional treatment of skeletal Class II malocclusion accompanied with low-level laser therapy: A prospective clinical evaluation