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
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|ClinicalTrials.gov Identifier: NCT03308175|
Recruitment Status : Recruiting
First Posted : October 12, 2017
Last Update Posted : February 6, 2018
|Condition or disease||Intervention/treatment||Phase|
|Skeletal Class 2||Device: flat fixed anterior bite plane Device: modified inclined fixed anterior bite plane||Not Applicable|
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||30 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Single (Outcomes Assessor)|
|Official Title:||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: A Randomized Controlled Trial|
|Actual Study Start Date :||November 30, 2017|
|Estimated Primary Completion Date :||September 2018|
|Estimated Study Completion Date :||September 2018|
Experimental: 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.
Device: flat fixed anterior bite plane
It causes unlocking mandible from deep bite in growing females
Experimental: 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
Device: 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
- Change in mandibular position [ Time Frame: 8 months ]assessed onCBCT
- Maxillary anteroposterior and vertical growth change. [ Time Frame: 8 months ]assessed onCBCT
- Anteroposterior and vertical dental changes. [ Time Frame: 8 months ]assessed onCBCT
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03308175
|Contact: yomna Elfiky, email@example.com|
|Faculty of Dentistry,Cairo University||Recruiting|