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

NCT07454694 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 34

Last updated 2026-03-06

No results posted yet for this study

Summary

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).

Conditions

  • Class II Malocclusion
  • Mandibular Retrognathism

Interventions

DEVICE

Invisalign Clear Aligners

Functional appliances are used for mandibular advancement in the treatment of mandibular retrognathia in orthodontics. The Twinblock is a conventional functional appliance, and nowadays mandibular advancement can also be achieved with clear aligners. In this study, these two appliances were used.

DEVICE

Twinblock Functional Appliance

Functional appliances are used for mandibular advancement in the treatment of mandibular retrognathia in orthodontics. The Twinblock is a conventional functional appliance, and nowadays mandibular advancement can also be achieved with clear aligners. In this study, these two appliances were used.

Sponsors & Collaborators

  • Bezmialem Vakif University

    lead OTHER

Principal Investigators

  • Ezgi Sunal Akturk, Assistant Professor · Saglik Bilimleri Universitesi

  • Gokmen Kurt, Professor · Bezmialem Vakif University

  • Ahsen Irem Toktas, Research Assistant · Bezmialem Vakif University

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
10 Years
Max Age
14 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-08-01
Primary Completion
2025-07-22
Completion
2025-08-01

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07454694 on ClinicalTrials.gov