The Efficiency of Clear Aligners in Maxillary Molar Distalization: A Randomized Clinical Trial.

The Accuracy of Clear Aligners in Maxillary Molar Distalization With and Without Attachments: A Randomized Clinical Trial.

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT06330571

Acronym

Aligner

Enrollment

Registered

2024-03-26

Start date

2024-04-27

Completion date

2025-07-15

Last updated

2024-03-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthodontic Aligners

Keywords

Orthodontic, aligner, molar

Brief summary

The aim of this study is to evaluate the accuracy of clear aligners on the amount of the maxillary molar distalization.

Interventions

DEVICEMolar distalization by aligners with attachment

1. Plaster dental models will be poured from the rubber base impression. 2. Digital dental models will be created through scanning of plaster dental models. 3. Planning of the aligners will be done on 3 shape clear aligner. 4. Aligners will be fabricated on 3d printed models. 5. Patient will receive the first aligner and will be instructed to wear it full time (except during eating and brushing) for 2 weeks. 6. Patient will receive the following aligner after 2 weeks. 7. Follow up visits every 4weeks until 6 months.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

15 Years to 40 Years

Healthy volunteers

Yes

Inclusion criteria

1. Age more than15 years. 2. Gender; male or female. 3. Skeletal Class I or Class II malocclusion and a bilateral half-cusp class II molar relationship that require molar distalization. 4. Mild crowding in the upper arch (≤ 4 mm). 5. Absence or previous extraction of the upper third molars. 6. Good compliance during the treatment

Exclusion criteria

1. Transversal dental or skeletal discrepancies. 2. Extraction treatment (except for the third molar). 3. Periodontal disease. . 4. Prosthodontics rehabilitation of the maxillary molars.

Design outcomes

Primary

Measure	Time frame	Description
Efficiency of aligners in molar distalization	6 months	T2(3shape)-T1(actual) \<mm\>

Secondary

Measure	Time frame	Description
Amount of anchorage loss	6 months	Linear ( mm)
Amount of molar tipping	6 months	Angular

Countries

Egypt

Contacts

Primary ContactAhmed Ibrahim Atalla, PhD

ahmed.atalla@dentistry.cu.edu.eg+201096290800

Backup ContactNoha E Sabet, Prof

01001942079

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026