Process establishment and accuracy of computer-assisted dynamic navigation system in coronectomy of the impacted mandibular third molar

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2200062544

Enrollment

Unknown

Registered

2022-08-11

Start date

2022-08-01

Completion date

Unknown

Last updated

2023-04-12

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

Conditions

Impacted mandibular third molar

Interventions

test group:dynamic navigation

control group:free hand

Eligibility

Sex/Gender

All

Age

18 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. 18-40 years old; 2. Patients with mesial/horizontal impacted mandibular third molars with CBCT showing that close relationship between root and mandibular nerve canal; 3. Patients request extraction and agree to coronectomy.

Exclusion criteria

Exclusion criteria: 1. Systemic diseases; 2. Immune system defect; 3. Use antibiotics and hormone drugs within 3 months before tooth extraction; 4. Caries, apical lesions, and cystic lesions of mandibular third molars; 5. Radiotherapy for mandible; 6. Root loosening during coronectomy.

Design outcomes

Primary

Measure	Time frame
Percentage in space;	—

Secondary

Measure	Time frame
Root Mean Square, RMS;	—

Countries

China

Contacts

Public ContactBinzhang Wu

Peking University School and Hospital of Stomatology

wubz2008@126.com+86 15600665605

Outcome results

None listed

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