A Multicenter Retrospective Observational Study on the Utility of Apex Position Evaluation for Predicting Sensory Numbness Following Lower Wisdom Tooth Extraction

A Multicenter Retrospective Observational Study on the Utility of Apex Position Evaluation for Predicting Sensory Numbness Following Lower Wisdom Tooth Extraction - A Study on the Utility of Apex Position Evaluation for Predicting Sensory Numbness Following Lower Wisdom Tooth Extraction

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000060057

Enrollment

3727

Registered

2025-12-11

Start date

2025-12-11

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

third molar

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Cases where mandibular wisdom teeth were extracted at the research institution between April 1, 2018, and March 31, 2021. Cases where the patient was 20 years of age or older at the time of wisdom tooth extraction. Cases where a panoramic X-ray was taken.

Exclusion criteria

Exclusion criteria: Cases where the medical record is insufficient and adequate information cannot be obtained. Cases where a cyst or tumor is present alongside the wisdom tooth and is in contact with the mandibular canal. Cases where sensory numbness has developed prior to wisdom tooth extraction. Cases where crown sectioning or a two-stage approach has been selected.

Design outcomes

Primary

Measure	Time frame
Presence or absence of sensory loss by AP classification AP0 to AP3.	—

Countries

Japan

Contacts

Public ContactHiromasa Fukushima

Nagasaki University Hospital Oral surgery

hirofuku922@nagasaki-u.ac.jp095-819-7698

Outcome results