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The influence of clasp design on twin block appliances outcome - a prospective randomised, controlled clinical trial

Completed
Conditions
Oral Health: Orthodontics
Oral Health
Orthodontics
Registration Number
ISRCTN45965219
Lead Sponsor
Record provided by the NHS Trusts Clinical Trials Register - Department of Health (UK)
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Completed
Sex
Not specified
Target Recruitment
52
Inclusion Criteria

1. Patients aged 11-15 years
2. Added May 2008: with Class II division 1 malocclusion suitable for functional appliance therapy. The overjet had to be greater than 6mm and ANB angle greater than 4°.

Exclusion Criteria

Added May 2008:
Patients with congenital syndromes, obvious asymmetry and prior appliance therapy were excluded.

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Added May 2008:<br>Angulation of the long axis of the upper incisor to the maxillary plane, as measured from a lateral cephalometric radiograph.
Secondary Outcome Measures
NameTimeMethod
Added May 2008:<br>1. Angulation of the long axis of the lower incisor to the mandibular plane<br>2. Skeletal relationship as measured by angle ANB
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