The Effect of Different Treatment Modalities of Class II Malocclusion on Upper Third Molars: A Retrospective Longitudinal Study
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Cairo University
- Enrollment
- 46
- Locations
- 1
- Primary Endpoint
- The angulation of the maxillary third molars.
Study Overview
Brief Summary
What is the effect of the different treatment modalities (distalization versus upper premolar extraction) of class II malocclusion on the position, inclination and incidence of impaction of the upper third molars?
Detailed Description
What is the effect of the different treatment modalities (distalization versus upper premolar extraction) of class II malocclusion on the position, inclination and incidence of impaction of the upper third molars? Pico P: Adolescent patients with class II malocclusion having bilateral developing upper third molars.
I: bilateral upper first premolar extraction orthodontic treatment with moderate anchorage.
C: distalization orthodontic treatment. O: Primary: angulation of the maxillary third molars.
Study Design
- Study Type
- Observational
- Observational Model
- Case Control
- Time Perspective
- Retrospective
Eligibility Criteria
- Ages
- 16 Years to 18 Years (Child, Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Adolescent males and females (16 -18 years) with Bilaterally developing maxillary third molars. Not more than two thirds of the root development of the third molars had taken place.
- •Class II malocclusion cases that were treated by 1) maxillary premolar extraction with a moderate anchorage requirement and achieved full unit class II molar relationship or 2) Distalization treatment plan and class I molar relationship was achieved.
- •Patients with high-quality pre- and post-treatment radiographs.
- •Normal or increased vertical dimension.
Exclusion Criteria
- •Maxillary Premolar extraction cases requiring maximum anchorage preparation.
- •Low vertical dimension.
- •Patients without dentofacial deformities, severe facial asymmetries, microdontia or hypodontia.
Outcomes
Primary Outcomes
The angulation of the maxillary third molars.
Time Frame: up to 24 weeks.
the angle between the long axis of the third molar and the palatal plane
Secondary Outcomes
- The vertical position of the third molars(up to 24 weeks)
- The mineralization status of the third molars(up to 24 weeks)
Investigators
Amira Aboalnaga
principal investigator
Cairo University