A clinical random control trial of an optimized attachment system for clear aligner: an evaluation study for treatment efficacy

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100041604

Enrollment

Unknown

Registered

2021-01-01

Start date

2021-01-01

Completion date

Unknown

Last updated

2021-03-22

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

Conditions

malocclusion

Interventions

control group:Conventional attachment

experimental group:Optimized attachment

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients aged between 18-35 years; 2. with good general health; 3. without systematic diseases or oral diseases which would influence teeth movement; 4. bimaxillary protrusion cases with treatment plans include extraction of 4 premolars; 5. patients agree with treatment with clear aligeners; 6. permanent dentition; 7. normal mandibular angle.

Exclusion criteria

Exclusion criteria: 1. Patients with systematic diseases or oral diseases which would influence teeth movement; 2. with smock history within 6 months; 3. pregnancy; 4. allergic to clear aligner material.

Design outcomes

Primary

Measure	Time frame
The movement and deriction of each teeth;	—

Countries

China

Contacts

Public ContactLi Jing

Peking University School and Hospital of Stomatology

lijingpku@qq.com+86 18810880658

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026