TerminatedNot Applicable

A Prospective Randomized Controlled Trial to Evaluate the Effectiveness of the Two Different Appliances in the Treatment of Class II Division 1 Malocclusion

Stopped: Study stopped due to increased harm and slow progress in the intervention group.

United Kingdom64 participantsStarted 2007-01

Plain-language summary

Twin-Block treatment and Dynamax treatment for Class II division 1 malocclusion do not have different effects with regards to treatment duration, the quality of dento-occlusal outcome, skeletal and soft tissue profile, patient discomfort and gingival health.

Who can participate

Age range10 Years – 14 Years

SexALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Patients with a Class II malocclusion as defined by British Standards Institute classification. * Overjet greater than 6mm * Aged 10-14 years * Clinical examination indicates a functional appliance is not contraindicated Exclusion Criteria: * Orthognathic treatment is required or there is a strong indication it will be required in the future * Possession of a craniofacial anomaly * Previous orthodontic treatment and/or premolar extraction * Hypodontia of more than one teeth in any quadrant excluding third molars * Inadequate oral hygiene

What they're measuring

Duration of treatment with functional appliance

Timeframe: 9 months

Overjet measurement

Timeframe: 9 months

Trial details

NCT IDNCT00957489

SponsorUniversity of Manchester

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2008-09

View on ClinicalTrials.gov More Class II Division 1 Malocclusion trials