Evaluation of the Effects of Flat and Modified Inclined Fixed Anterior Bite Planes on Mandibular Position in Growing Females With Skeletal Class 2 Malocclusion Due to Mandibular Deficiency and Deep Bite
NCT ID: NCT03308175
Last Updated: 2018-02-06
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
30 participants
INTERVENTIONAL
2017-11-30
2018-09-30
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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flat fixed anterior bite plane
Bands selection will be done for upper 6s. Alginate impressions taken and molar bands are fitted in place into the impressions. Impressions for upper and lower arches are poured with stone plaster. Mounting on simple hinge articulator will be done.
Lingual arches (diameter 1 mm) with anterior acrylic bite plates with thickness enough to separate posterior teeth 4mm .
The acrylic bite planes were in occlusion with the lower anterior teeth and extended sagittally 2-3mm beyond edges of lower incisors.
Finishing ,polishing and cementation into patient's mouth with glass ionomer cement.
flat fixed anterior bite plane
It causes unlocking mandible from deep bite in growing females
modified inclined fixed anterior bite plane
In modified inclined fixed anterior bite plane,the modification is that some indentations will be done in the acrylic part where the lower anteriors will fit such that mandible will be held in a more forward position. These indentations will be relieved lingually to overcome it's flaring effect on mandibular incisors .The inclined plane will be 60 degrees to occlusal plane.
Functional bite will be taken to position the mandible in the proper position forward.
Bite taken edge-to-edge for appliance construction. Mounting upper and lower casts on simple hinge articulator for construction of modified flat fixed anterior bite plane
modified inclined fixed anterior bite plane
It causes unlocking mandible from deep bite in growing females plus putting the mandible in a more forward position
Interventions
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flat fixed anterior bite plane
It causes unlocking mandible from deep bite in growing females
modified inclined fixed anterior bite plane
It causes unlocking mandible from deep bite in growing females plus putting the mandible in a more forward position
Eligibility Criteria
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Inclusion Criteria
(3) low-angle/moderate normal growth pattern (4) Overjet of 4-7 mm as measured from labial surface of upper incisors to labial surface of lower incisors (5)Skeletal class 2 due to mandibular deficiency 77 degrees \<SNB\> 73 degrees (6) Normal or slightly protruded maxillary base (7) All cases had dental deep bite; with the upper incisors covering more than 50% of the height of the lower incisors.
(8)Only deep bite cases that required extrusion of posterior teeth.
Exclusion Criteria
10 Years
13 Years
FEMALE
Yes
Sponsors
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Cairo University
OTHER
Responsible Party
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Yomna Elfiky
Resident
Locations
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Faculty of Dentistry,Cairo University
Cairo, , Egypt
Countries
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Central Contacts
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Other Identifiers
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CEBD-CU-2017-10-04
Identifier Type: -
Identifier Source: org_study_id
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