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Completed

NCT Number: NCT06098885

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

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?

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Key information

Conditions

Third Molar Impaction

Age range

16 year–18 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Amira Aboalnaga

Cairo, 12588, Egypt

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

extraction orthodontic treatment

Other

bilateral upper first premolar extraction orthodontic treatment with moderate anchorage.

Primary outcomes

  1. 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

  1. The vertical position of the third molars

    Time frame: up to 24 weeks

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

  2. The mineralization status of the third molars

    Time frame: up to 24 weeks

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

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Official study title

The Effect of Different Treatment Modalities of Class II Malocclusion on Upper Third Molars: A Retrospective Longitudinal Study

Important dates

Study start
2021
Primary completion
2023
Study completion
2023
First posted
Oct 25, 2023
Registry last updated
Oct 25, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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