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

NCT06098885 | Completed DMC

• 1 other identifier: CEBD-CU-2021-9-7
• Study Type: observational
• Target: 46
• Locations: 1 country
• Sites: 1

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?

Conditions

Third Molar Impaction

Keywords

distalization; premolar extraction; upper third molar; impaction of third molar

Outcome Measures

Primary Outcomes (1)

• The angulation of the maxillary third molars.

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

  up to 24 weeks.

Secondary Outcomes (2)

• The vertical position of the third molars

  up to 24 weeks

• The mineralization status of the third molars

  up to 24 weeks

Study Arms (2)

extraction treatment

patients treated with bilateral upper first premolar extraction orthodontic treatment with moderate anchorage.

Other: extraction orthodontic treatment

distalization treatment

patients treated by distalization orthodontic treatment.

Interventions

extraction orthodontic treatment OTHER

bilateral upper first premolar extraction orthodontic treatment with moderate anchorage.

extraction treatment

Eligibility Criteria

• Age: 16 Years - 18 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)
• Sampling Method: Probability Sample

Study Population

• Egyptian Adolescent males and females (16 -18 years)

You may qualify if:

• 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.

You may not qualify if:

• Maxillary Premolar extraction cases requiring maximum anchorage preparation.
• Low vertical dimension.
• Patients without dentofacial deformities, severe facial asymmetries, microdontia or hypodontia.

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Amira Aboalnaga

Cairo, 12588, Egypt

Location

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: principal investigator

Study Record Dates

• First Submitted: September 8, 2021
• First Posted: October 25, 2023
• Study Start: September 4, 2021
• Primary Completion: June 4, 2023
• Study Completion: June 4, 2023
• Last Updated: October 25, 2023

Record last verified: 2023-10

Locations

EG (1)