Comparison Between Aesthetic Functional Appliances and Twin Block in Correction of Skeletal Class II

Comparison Between Aesthetic Functional Appliances and Twin Block in Correction of Skeletal Class II: Randomized Controlled Study

The goal of this is to evaluate the skeletal, dental and soft tissue effects between aesthetic functional appliance and Twin block appliance in treatment of skeletal class II in ( growing male/female patients)

The sample will be randomly divided into 2 equal groups according to the appliance will be used:

Group 1: Aesthetic Functional appliance Group 2: Twin block

Methods:

*Radiographs (CBCT) will be taken before starting the treatment (T1) and after obtaining Class I occlusion and normal overjet (T2) by sequential appliances.

appliances.

• Lateral cephalograms -extracted from CBCT- will be used to evaluate the effect of the two appliances.
• CBCT will be used to evaluate root resorption and bony changes in the condyle .

Inclusion Criteria:

• Skeletal Class II pattern with ANB angle exceeding 6° and Wits appraisal of 2 mm or more.
• Mandibular deficiency (SNB angle less than 77°).
• Growing patients.
• No prior orthodontic intervention.
• The vertical skeletal classification shows a horizontal or neutral growth pattern.
• Overjet ≥ 8mm.

Exclusion Criteria:

• Developmental abnormalities with atypical or irregular patterns of growth and maturation.
• Any indications or manifestations, as well as any prior medical records, of Tempro-Mandibular Joint (TMJ) disorders, such as the presence of clicking, pain, limitations, or deviations.