Mandibular First Molar Distalization

Cairo University (CU)

Status: Not yet enrolling

Conditions: Class III Malocclusion

Treatments: Procedure: Mandibular distalization using extra-radicular miniscrews

Study type: Interventional

Funder types: Other

Identifiers

NCT04229797

MakhloufOrth

Details and patient eligibility

About

A clinical study to test the capability of the mini-screws inserted in the Mandibular buccal shelf area as an anchorage unit to distalize mandibular first molar for correction of mild to moderate Class III cases. The second aim was to detect if there is a difference in the amount of distalization in the presence of unerupted mandibular third molars, using the same technique.

Full description

Class III malocclusion in adults is one of the most complex malocclusions in clinical orthodontics. For adults, the ideal treatment option for Class III malocclusion is accomplished either by camouflage treatment in mild to moderate cases or orthognathic surgery in severe cases. Camouflage treatment for Class III malocclusion comprises three main techniques; Class III elastics, mandibular first molar distalization, or extraction of mandibular first premolars. Mandibular first molar distalization via the use of skeletal anchorage has the problem of increased failure rate of the inter-radicular temporary anchorage devices (TADs). Accordingly, a randomized clinical trial using extra radicular TADs in the Mandibular buccal shelf area was designed in the current research aiming to test the efficacy of such a technique in inducing mandibular molar distalization with decreased failure rate, and whether the presence of unerupted mandibular third molars will affect the distalization movement or not.

Enrollment: 20 estimated patients

Sex: All

Ages: 16 to 24 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Class III dental incisal relation.
• Dental canine and molar relation not more than half unit Class III.
• Presence of unerupted mandibular third molars on both sides.
• Skeletal Class I or mild Class III.
• Full Permanent dentition.
• Medically free subjects.

Exclusion criteria

• Patients with systemic diseases or neuromuscular disorders.
• Retroclined lower incisors.
• Sever skeletal dysplasia.
• Patients with periodontal disease.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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20 participants in 2 patient groups

Comparator

Active Comparator group

Description:

Extraction of the unerupted third molars before distalization of mandibular first molar using Mandibular buccal shelf mini-screws.

Treatment:

Procedure: Mandibular distalization using extra-radicular miniscrews

Intervention

Experimental group

Description:

Leaving the unerupted third molars and distalizing using Mandibular buccal shelf mini-screws.

Treatment:

Procedure: Mandibular distalization using extra-radicular miniscrews