A multi-center retrospective observation study on the relationship between the root and mandibular canal in the development of postoperative nerve paralysis in extracted Mandibular Wisdom Teeth

A multi-center retrospective observation study on the relationship between the root and mandibular canal in the development of postoperative nerve paralysis in extracted Mandibular Wisdom Teeth - Retrospective study on the relationship between the root and mandibular canal in the development of postoperative nerve paralysis in extracted Mandibular Wisdom Teeth

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000056481

Enrollment

3727

Registered

2024-12-17

Start date

2024-12-17

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

Wisdom tooth

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (i) Cases with mandibular wisdom teeth extracted at the study institution between April 1, 2018 and March 31, 2021. (ii) Cases that are 20 years of age or older.

Exclusion criteria

Exclusion criteria: (1) Cases in which sufficient information cannot be obtained due to poor entries in the medical information record. (2) Cases in which a CT scan was not taken before surgery. (3) Cases in which a cyst or tumor exists with the wisdom tooth and is in contact with the mandibular canal. (4) Cases in which patients developed hypersensitivity prior to extraction of the wisdom tooth.

Design outcomes

Primary

Measure	Time frame
Onset of nerve paralysis in each case and the degree of mandibular canal deformity caused by the root of the wisdom tooth and whether it is caused by the position of the wisdom tooth root and mandibular canal (buccal, lingual, subapical, and interdental canal).	—

Countries

Japan

Contacts

Public ContactHiromasa Fukushima

Nagasaki University Hospital Oral surgery

naruse12@nagasaki-u.ac.jp095-819-7698

Outcome results