The Effect of Different Treatment Modalities of Class II Malocclusion on Upper Third Molars.

Cairo University46 enrolled

Overview

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 Type

OBSERVATIONAL

Enrollment

Conditions

Third Molar Impaction

Interventions

extraction orthodontic treatmentOTHER

bilateral upper first premolar extraction orthodontic treatment with moderate anchorage.

Eligibility

Sex: ALLMin age: 16 YearsMax age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

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.

Locations (1)

Amira Aboalnaga

Cairo, Egypt

Outcomes

Primary Outcomes

The angulation of the maxillary third molars.

the angle between the long axis of the third molar and the palatal plane

Time frame: up to 24 weeks.

Secondary Outcomes

The vertical position of the third molars

the vertical position of the third molar relative to the second molar measured using Archer classification tool. (qualitative measure)

Time frame: up to 24 weeks

The mineralization status of the third molars

the amount of calcified tissues of the third molar measured using Demirjian classification method

Time frame: up to 24 weeks

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.