Comparison Of The Effects Of Clear Aligners And Twinblock Appliances In Functional Treatment Of Class II Malocclusion

Bezmialem Vakif University

Status: Completed

Conditions: Mandibular Retrognathism; Class II Malocclusion

Treatments: Device: Twinblock Functional Appliance; Device: Invisalign Clear Aligners

Study type: Interventional

Funder types: Other

Identifiers

NCT07454694

118118

Details and patient eligibility

About

This prospective clinical study aimed to compare the skeletal and dentofacial effects of Twin Block (TWB) and clear aligners with mandibular advancement, and to evaluate mandibular trabecular bone changes through fractal analysis (FA).

Full description

A total of 34 patients with dentoskeletal Class II malocclusion were included in the study: 16 patients in the Invisalign® Mandibular Advancement (MA) group and 18 patients in the TWB group .Panoramic and lateral cephalometric radiographs were obtained at baseline(T0) and after functional treatment(T1). Skeletal, dental, and soft tissue structures were evaluated on the pretreatment and posttreatment radiographs using cephalometric analysis, while trabecular bone architecture was assessed by fractal analysis.

Enrollment: 34 patients

Sex: All

Ages: 10 to 14 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients with Angle Class II molar and canine relationship
• Overjet greater than 6 mm
• Patients in the growth spurt period

Exclusion criteria

• History of orthodontic treatment
• Missing teeth
• Patients in mixed dentition period
• Systemic diseases affecting growth or bone metabolism

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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34 participants in 2 patient groups

Clear Aligner Group

Experimental group

Description:

Mandibular advancement with clear aligners

Treatment:

Device: Invisalign Clear Aligners

Twinblock Group

Experimental group

Description:

Mandibular Advancement with Twinblock Functional Appliance

Treatment:

Device: Twinblock Functional Appliance