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Natl J Maxillofac Surg. 2011 Jul;2(2):137-40. doi: 10.4103/0975-5950.94467.

Incidence of lingual nerve paraesthesia following mandibular third molar surgery.

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1
Department of Oral and Maxillofacial Surgery, Punjab Government Dental College and Hospital, Amritsar, Punjab, India.

Abstract

CONTEXT:

The surgical removal of impacted mandibular third molar is associated with minor but expected complications like pain, swelling, bruising and trismus. The lingual nerve damage sometimes occurs after the removal of mandibular third molar producing impaired sensation or permanent sensory loss. This complication is usually unexpected and unacceptable for the patients particularly if no prior warning has been given.

AIMS:

The aim of the present clinical prospective study was to determine the clinical incidence of lingual nerve injury following mandibular third molar removal and to analyze possible factors for the lingual nerve injury.

SETTINGS AND DESIGN:

Clinical prospective study in the Department of Oral Surgery, Punjab Government Dental College and Hospital, Amritsar.

MATERIALS AND METHODS:

Ninety patients were selected randomly, amongst the patients, who reported to our department from January 2009 to December 2009 for the surgical removal of impacted mandibular third molar. To minimize the risk of lingual nerve injury, the standard terence wards incision was made in all cases and only buccal flap was raised.

STATISTICAL ANALYSIS:

The small number of paraesthesia precluded statistical analysis.

RESULTS:

Out of 90 patients, six patients were diagnosed with lingual nerve paraesthesia. The overall incidence rate of lingual nerve injury was 6.6%.

CONCLUSIONS:

It can be concluded that lingual nerve paraesthesia can occur with or without reflection of lingual flap in spite of all the measures taken to protect it. It may be contributed to the fact of anatomical variations of lingual nerve.

KEYWORDS:

Lingual nerve; paraesthesia; third molar

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