Effect of Extraction Versus Non-extraction Orthodontic Treatment on the Third Molars

Cairo University (CU)

Status: Active, not recruiting

Conditions: Orthodontic Treatment Via Premolar Extraction

Treatments: Procedure: extraction orthodontic treatment plan

Study type: Interventional

Funder types: Other

Identifiers

NCT04857658

CEBD-CU-2021-10-4

Details and patient eligibility

About

What is the effect of extraction orthodontic treatment in comparison to non- extraction treatment on the position, inclination and incidence of impaction of the third molars?

Full description

Data regarding the personal information (name, age and gender), chief complaint, medical and dental history will be taken. Medical history questionnaire will be filled by the patient to exclude the presence of any systemic conditions.

complete set of orthodontic records will be taken; Pre- operative records including (standardized intra- and extra-oral photographs, primary impression for study model, panoramic & lateral cephalogram). After formulating the best treatment plan for each patient, All patients will be enrolled into one of two groups: Intervention Group (I) : Extraction treatment group. Comparator group (C): Non-extraction group. Following the end of treatment, Post-treatment records including (standardized intra- and extra-oral photographs, primary impression for study model, panoramic & lateral cephalogram) will be taken.

Primary outcome: The angulation of the mandibular third molars.Secondary outcomes:

1. space available for the upper and lower third molar.
2. Angulation of the third molar.
3. The vertical position of the third molars.
4. the mineralization status of the third molars

Enrollment: 40 estimated patients

Sex: All

Ages: 14 to 18 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Adolescent males and females (14-18 years) with Bilaterally unerupted developing third molars. Not more than two thirds of the root development of the third molars had taken place.

  • Dental Class I malocclusion cases requiring four premolar extraction with a moderate anchorage requirement.
  • low or increased vertical dimension.

Exclusion criteria

• Premolar extraction cases requiring maximum anchorage preparation.

  • Low vertical dimension.
  • patients without dentofacial deformities, severe facial asymmetries, or missing teeth.

Trial design

Primary purpose: Prevention

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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40 participants in 2 patient groups

extraction treatment

Active Comparator group

Description:

patients will be referred for extraction of the upper and lower first premolars to relieve the crowding.

Treatment:

Procedure: extraction orthodontic treatment plan

non-extraction treatment

No Intervention group

Description:

Leveling and alignment of the moderate crowding will be performed through a recall visits of 4 weeks for wire activation. inter-proximal reduction step might be done if needed.