Skip to content

A comparison between clear aligners and conventional fixed appliances - a randomized controlled trial

A comparison between clear aligners and conventional fixed appliances - a randomized controlled trial - clear aligners vs fixed appliances

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00023977
Enrollment
44
Registered
2020-12-30
Start date
2019-01-22
Completion date
Unknown
Last updated
2025-04-07

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

Conditions

treatment of nonextraction cases

Interventions

Group 1: Orthodontic treatment with conventional fixed appliances Group 2: Orthodontic treatment with clear aligners

Sponsors

Faculty of Dentistry, Damascus University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 35 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria were: (1) Adult patients (18- 35 years old) (2) Class I molar and canine relationships (3) Mild to moderate crowding in both arches (2-6 mm) (4) Non-extraction treatment (5) No missing teeth (from second molar to second molar) (6) healthy patients with no contraindication of orthodontic treatment.

Exclusion criteria

Exclusion criteria: Extrusion criteria were: (1) poor oral hygiene (2) previous orthodontic treatment (3) Impacted teeth (other than third molars) (4) orthognathic surgery or syndromic patients (5) anterior or posterior crossbite (6) anterior or posterior openbite (7) sever deepbite (more than 40%) (8) Sever overjet (more than 4 mm).

Design outcomes

Primary

MeasureTime frame
Orthodontic treatment outcomes using the American Board of Orthodontics - Objective Grading System (ABO-OGS)

Secondary

MeasureTime frame
- Duration of orthodontic treatment in months. - Oral health-related quality of life using OHIP-14 profile. - Root resorption using CBCT images. - periodontal health. - Dentoalveolar changes using CBCT images.

Countries

Syria

Contacts

Public ContactAlaa Alfawal

Faculty of Dentistry, Damascus University.

alaa7alfawal@gmail.com00963999227957

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 12, 2026