Assesment of Tempromandibular Joint ( TMJ ) Changes After Treatment of Skeletal Class II Cases by Twinblock vs Monoblock Appliances

November 26, 2025 updated by: Fatema Mohamad, Faculty of Dental Medicine for Girls

Assessment of Tempromandibular Joint Changes After Treatment of Skeletal Class II Growing Patients by Twin Block Versus Monoblock

Assesment of TMJ changes after treatment of skeletal classII growing patients by Twinblock vs Mono block applinces

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Group (A): patients were treated by Twin block appliance Group (B): patients were treated by Mono block appliance

Study Type

Interventional

Enrollment (Actual)

18

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
      • Cairo, Egypt
        • Facility of dentistry, Alazhar university, girls branch

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • skeletal class II malocclusion
  • Defecient mandible
  • ANB >4
  • Growing female patients
  • Age from 9-12 years

Exclusion Criteria:

  • TMJ disease

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treatment of skeletal class II by mandibular advancement using Twin block appliance
Twinblock group
Device: twin block
Treatment of Skeletal class II by mandibular advancement using twinblock appliances ( removable myofunctional appliance)
Experimental: treatment of skeletal class II by mandibular advancement using Mono block appliance
Monoblock group
Device: Mono block
Treatment of Skeletal class II by mandibular advancement using Mono block appliances ( removable myofunctional appliance)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Assessment of Tempromandibular changes including, condylar volume ( in cubic millimeters), length ( in millimeters) , height ( in millimeters) and position( in millimeters)
Time Frame: 8-12 months
full skull CBCT
8-12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Faculty of Dental Medicine for Girls

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 15, 2023

Primary Completion (Actual)

September 30, 2025

Study Completion (Actual)

November 11, 2025

Study Registration Dates

First Submitted

November 19, 2025

First Submitted That Met QC Criteria

November 26, 2025

First Posted (Actual)

December 8, 2025

Study Record Updates

Last Update Posted (Actual)

December 8, 2025

Last Update Submitted That Met QC Criteria

November 26, 2025

Last Verified

November 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • ORTO-108-2-G

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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