Skip to content

Comparative analysis of two flap designs for the extraction of impacted mandibular horizontal third molars: a multicenter randomized control trial

Comparative analysis of two flap designs for the extraction of impacted mandibular horizontal third molars: a multicenter randomized control trial - Comparative analysis of two flap designs for the extraction of impacted mandibular horizontal third molars: a multicenter randomized control trial

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000045413
Enrollment
200
Registered
2021-09-07
Start date
2019-01-09
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

impacted mandibular horizontal third molars

Interventions

modified envelope flap Triangular flap

Sponsors

Omura Municipal Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: The inclusion criteria were patients: (1) 20 years or older with impacted mandibular horizontal third molars under local anesthesia in outpatients; (2) with an indication for the extraction of impacted mandibular horizontal third molars; and (3) signed informed consent form for participation and permission to use the obtained data for research purposes.

Exclusion criteria

Exclusion criteria: (1) deficiency of the mandibular second molars; (2) taking an anticancer drug, an immunosuppressive drug, or an antithrombotic drug; and (3) with a systemic disease that prevents surgery.

Design outcomes

Primary

MeasureTime frame
The primary endpoint of the study was the difference in the postoperative complications (postoperative pain, hemorrhage, paralysis of the inferior dental nerve, dry socket, and infection) between mEF and TF.

Secondary

MeasureTime frame
The secondary endpoint of the study was the difference in the operation time.

Countries

Japan

Contacts

Public ContactTomofumi Naruse

Omura Municipal Hospital Department of Dentistry and Oral Surgery

natsuaya1023@gmail.com0957-52-2161

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026