Twin Block Appliance in Incremental Versus Maximum Bite Advancement in Skeletal Class II
NCT ID: NCT04562545
Last Updated: 2020-09-24
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
24 participants
INTERVENTIONAL
2020-09-15
2021-09-15
Brief Summary
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Detailed Description
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* Eligible patients will be randomly assigned to one of two groups:
* Control Group: Twin Block Appliance fabricated to Maximum Bite Advancement group
* Intervention Group: Twin Block Appliance fabricated for Incremental Bite Advancement group
* Records will be taken and impressions will be made and poured. In the control group, bite registration will be made with maximum mandibular advancement. In the intervention group, bite registration is made to habitual bite to make a modified twin block.
* Patients will be recalled every 6 weeks for 8 months for monitoring and reactivation of the appliance.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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Maximum Bite Advancement
Twin Block Appliance set to maximum bite
a traditional twin block set to maximum bite advancement at start of treatment
Incremental Bite Advancement
Modified Twin Block
a modified twin block design including jack screws to facilitate incemental advancement
Interventions
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Modified Twin Block
a modified twin block design including jack screws to facilitate incemental advancement
Twin Block Appliance set to maximum bite
a traditional twin block set to maximum bite advancement at start of treatment
Eligibility Criteria
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Inclusion Criteria
* Skeletal Class II Malocclusion due to deficient mandible
* Overjet of 7 to 10 mm
* Short or normal vertical facial pattern
* No previous orthodontic nor orthopedic treatment
Exclusion Criteria
* Skeletal Class II Malocclusion due to excessive maxilla
* Vertical skeletal growth pattern
* Habits
9 Years
13 Years
FEMALE
No
Sponsors
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Cairo University
OTHER
Responsible Party
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Khaled Mohamed Ali Hussein
Post Graduate Student, Department of Orthodontics, Cairo University
Locations
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Faculty of Dentistry, Cairo University
Cairo, , Egypt
Countries
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Central Contacts
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Facility Contacts
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References
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DeVincenzo JP, Winn MW. Orthopedic and orthodontic effects resulting from the use of a functional appliance with different amounts of protrusive activation. Am J Orthod Dentofacial Orthop. 1989 Sep;96(3):181-90. doi: 10.1016/0889-5406(89)90454-x.
Banks P, Wright J, O'Brien K. Incremental versus maximum bite advancement during twin-block therapy: a randomized controlled clinical trial. Am J Orthod Dentofacial Orthop. 2004 Nov;126(5):583-8. doi: 10.1016/j.ajodo.2004.03.024.
Other Identifiers
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CEBD-CU-2020-09-08
Identifier Type: -
Identifier Source: org_study_id
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