Effect of Maxillary Third Molar Extraction vs. Non-extraction on Distalization of First Molars in a Group of Adolescent Patients
NCT ID: NCT05647720
Last Updated: 2022-12-12
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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COMPLETED
NA
22 participants
INTERVENTIONAL
2021-02-28
2022-01-15
Brief Summary
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Detailed Description
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Conditions
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Keywords
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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Third molar extraction group
After surgical extraction of unerupted upper third molars, the maxillary first molars were distalized using the infra-zygomatic gear distalizer, which is anchored to infra-zygomatic mini-implants inserted in the infra-zygomatic crest.
Distalization combined with upper third molars extraction
After surgical extraction of unerupted upper third molars, the maxillary first molars were distalized using a labial bow with two soldered crimpable hooks distal to the upper lateral incisors. The labial bow fitted in the flying tube of the upper first molar bands. It was anchored bilaterally to the infra-zygomatic mini-implant by closed coil spring that applied a force of 300gm on each side
Third molar presence group
Without extraction of unerupted upper third molars, the maxillary first molars were distalized using the infra-zygomatic gear distalizer, which is anchored to infra-zygomatic mini-implants inserted in the infra-zygomatic crest.
Distalization without upper third molars extraction
The maxillary first molars were distalized , without extracting upper third molars, using a labial bow with two soldered crimpable hooks distal to the upper lateral incisors. The labial bow fitted in the flying tube of the upper first molar bands. It was anchored bilaterally to the infra-zygomatic mini-implant by closed coil spring that applied a force of 300gm on each side
Interventions
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Distalization combined with upper third molars extraction
After surgical extraction of unerupted upper third molars, the maxillary first molars were distalized using a labial bow with two soldered crimpable hooks distal to the upper lateral incisors. The labial bow fitted in the flying tube of the upper first molar bands. It was anchored bilaterally to the infra-zygomatic mini-implant by closed coil spring that applied a force of 300gm on each side
Distalization without upper third molars extraction
The maxillary first molars were distalized , without extracting upper third molars, using a labial bow with two soldered crimpable hooks distal to the upper lateral incisors. The labial bow fitted in the flying tube of the upper first molar bands. It was anchored bilaterally to the infra-zygomatic mini-implant by closed coil spring that applied a force of 300gm on each side
Eligibility Criteria
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Inclusion Criteria
* skeletal Class I
* bilateral Class II molar relationship. defined by at least an end-to-end molar relationship.
* normal vertical growth pattern.
* full permanent dentition with unerupted upper third molars.
Exclusion Criteria
* past orthodontic treatment.
* poor oral hygiene.
* Increased vertical dimension.
16 Years
19 Years
FEMALE
Yes
Sponsors
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Future University in Egypt
OTHER
Responsible Party
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Nadeen Hafez
Principal investigator
Principal Investigators
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Yehya Mostafa, Professor and Chairman
Role: STUDY_DIRECTOR
Future University in Egypt
Locations
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Future University in Egypt
Cairo, , Egypt
Countries
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Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Document Type: Informed Consent Form
Other Identifiers
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FUE.REC(14)/7-2019
Identifier Type: -
Identifier Source: org_study_id