Three-dimensional finite element analysis of mandibular second molar mesial movement by clear aligner

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2500096060

Enrollment

Unknown

Registered

2025-01-16

Start date

2024-04-12

Completion date

Unknown

Last updated

2025-01-27

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

Conditions

malocclusion

Interventions

clear aligner group:Different clear aligner designs: attachment and overcorrection.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (1) No permanent teeth missing except for the mandibular first molar; (2) No dental caries and obvious wear, periodontal health; (3) Individual normality; (4) No jawbone diseases, no orthodontic treatment history, no systemic diseases.

Exclusion criteria

Exclusion criteria: (1) The patient has systemic diseases or jawbone diseases; (2) The patient has dental caries or obvious dental defects, and the periodontal tissues are unhealthy; (3) The patient has obvious malocclusion deformities in the dental arch; (4) The patient has jawbone diseases, a history of orthodontic treatment, or severe systemic diseases.

Design outcomes

Primary

Measure	Time frame
displacement of tooth;	—

Secondary

Measure	Time frame
stress of the periodontal ligament;	—

Countries

China

Contacts

Public ContactNa Li

Silk Crossing Clinic, Affiliated Hospital of North Sichuan Medical College, Nanchong, China

li2613@nsmc.edu.cn+86 139 9083 2613

Outcome results

None listed

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