Treatment of Class III malocclusion using Modified Fixed Reverse Twin-Block Therapy

Not Applicable

• Conditions: Health Condition 1: K088- Other specified disorders of teethand supporting structures

• Registration Number: CTRI/2021/07/035044
• Lead Sponsor: ESIC Dental College Hospital

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Last Update Posted: 17 October 2022

Recruitment & Eligibility

• Status: Open to Recruitment
• Sex: Not specified
• Target Recruitment: 0

Inclusion Criteria

(i) Age from 14 years upto18 years,

(ii) Established Angle Class III malocclusion with an anterior crossbite involving three

to four incisors in Intercuspal position (ICP),

(iii) Ability to achieve edge-edge incisor relationship in Retruded contact position (RCP) with no pain or discomfort in TMJ

(iv) Minimal dental decompensation of the maxillary and mandibular incisors.

(v)-4Ã?Å  < ANB < 0Ã?Å 

(vi) Normodivergent to mild hyperdivergent growth pattern

(vii) Concave facial profile

(viii) Minimal or no crowding in the maxillary and mandibular arches

(ix) Full complement of permanent teeth (third molars excluded)

(x) Transition to Maturation phase of growth based on Cervical Vertebrae Maturity Indicators (CVMI) assessment

Exclusion Criteria

(i) Class III malocclusion not amenable to functional correction

(ii) Presence of true laterognathism or any syndromic craniofacial deformity such as cleft

lip and/or palate or any systemic disease that could affect normal growth of the body

and/or the jaws.

(iii) Claustrophobia and unwillingness to participate in the study

(iv) Patients exhibiting allergy/delayed hypersensitivity to methylmethacrylate resins

(v) Patients with associated severe TMJ symptoms and any other systemic problems

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
evaluate the effectiveness of modified fixed RTB as a functional treatment modality for Class III correction during adolescence. <br/ ><br>Timepoint: 6-9 months

Secondary Outcome Measures

Name	Time	Method
1) To assess dentoalveolar, skeletal and soft tissue effects of modified fixed RTB therapy for Class III correction during adolescence. <br/ ><br>2) To compare temporomandibular joint adaptation changes especially disk-condyle-fossa relationship following treatment of Class III malocclusion using modified fixed RTB and fixed appliances. <br/ ><br>Timepoint: 18 months