Clear Aligners vs Fixed Appliances for Molar Distalization Using Infrazygomatic Crest Screws

NCT07714603 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 37

Last updated 2026-07-20

No results posted yet for this study

Summary

This study compares three different methods of moving upper back teeth backward (distalization) to create space for crowded or protruding teeth, all supported by small temporary screws placed in the cheekbone area (infrazygomatic crest screws). Participants were randomly assigned to one of three treatment types: traditional fixed braces (Pitts21 system), Invisalign clear aligners, or ClearCorrect clear aligners. The study measures how effectively each method moves the back teeth, how long treatment takes, and how comfortable and practical each method is for patients. The goal is to help orthodontists and patients choose the most effective and efficient treatment option for this type of tooth movement.

Conditions

  • Angle Class 2 Malocclusion

Interventions

DEVICE

Pitts21® fixed appliance

Fixed orthodontic brackets (Pitts21 system) used for maxillary posterior distalization, anchored with infrazygomatic crest miniscrews and intraoral elastics.

DEVICE

Invisalign® Clear Aligners

Clear aligner system (Invisalign) used for maxillary posterior distalization, anchored with infrazygomatic crest miniscrews and intraoral elastics.

DEVICE

ClearCorrect Clear Aligners

Clear aligner system (ClearCorrect) used for maxillary posterior distalization, anchored with infrazygomatic crest miniscrews and intraoral elastics.

Sponsors & Collaborators

  • TC Erciyes University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
13 Years
Max Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-06-06
Primary Completion
2026-01-12
Completion
2026-02-18

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07714603 on ClinicalTrials.gov