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Related Experiment Videos

Lingual nerve damage after third lower molar surgical extraction.

E Valmaseda-Castellón1, L Berini-Aytés, C Gay-Escoda

  • 1The University of Barcelona and Teknon Medical Center, Spain.

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
|November 15, 2000
PubMed
Summary

Lingual nerve damage from lower third molar extraction is rare and temporary. Risk factors include surgical technique, tooth angulation, and surgeon experience, but permanent injury is uncommon.

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Area of Science:

  • Oral surgery
  • Dental research
  • Nerve injury studies

Background:

  • Lower third molar extraction is a common dental procedure.
  • Lingual nerve damage is a potential complication.
  • Understanding risk factors is crucial for patient safety.

Purpose of the Study:

  • Determine the incidence of lingual nerve damage post-lower third molar extraction.
  • Identify key factors contributing to lingual nerve injury.
  • Develop a predictive model for assessing nerve damage risk.

Main Methods:

  • Prospective study of 946 patients undergoing 1117 lower third molar extractions.
  • Data collection included preoperative, intraoperative, and postoperative factors.
  • Statistical analysis used nonparametric tests, chi-square, Fisher exact, and logistic regression.

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Main Results:

  • Temporary lingual nerve damage occurred in 2.0% of extractions, resolving within 13 weeks.
  • Significant risk factors identified: lingual flap retraction, vertical tooth sectioning, surgeon inexperience, tooth angulation, and prolonged operating time.
  • A predictive model incorporated lingual flap retraction, vertical tooth sectioning, and surgeon inexperience.

Conclusions:

  • Lingual nerve damage risk is elevated by anatomical factors (tooth angulation), surgical maneuvers (flap retraction, tooth sectioning), and surgeon inexperience.
  • Permanent lingual nerve lesions following lower third molar extraction are infrequent.