Does Computed Tomography Prevent Inferior Alveolar Nerve Injuries Caused by Lower Third Molar Removal?

Overview

Journal J Oral Maxillofac Surg

Specialties Dentistry
General Surgery

Date 2011 Jul 30

PMID 21798643

Citations 16

Authors

Gemma Sanmarti-Garcia

Eduard Valmaseda-Castellon

Cosme Gay-Escoda

Affiliations

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Abstract

Purpose: To verify the utility of computed tomography (CT) in preventing inferior alveolar nerve (IAN) injury owing to lower third molar extraction in close relation to the IAN on orthopantomogram.

Materials And Methods: A retrospective cohort study design of 150 lower third molar extractions was performed. Patients were divided in 2 groups: the CT group (n = 95) underwent panoramic radiography and mandibular CT and the control group (n = 55) underwent only panoramic radiography.

Results: Six extractions (4%) in the control group and 15 (10%) in the CT group resulted in IAN impairment (P > .05). Logistic regression models did not show that undergoing CT decreased the risk of IAN injury from lower third molar extraction.

Conclusions: Patient age and positive radiographic signs (darkening of the root and narrowing of the inferior alveolar canal) were associated with more requests for CT scanning. CT does not seem to significantly decrease the risk of producing IAN injury.

Citing Articles

Neurological Complications following Surgical Treatments of the Lower Molars.

Mancini A, Inchingolo A, Di Blasio M, de Ruvo E, Noia A, Ferrante L Int J Dent. 2024; 2024:5415597.

PMID: 39286455 PMC: 11405104. DOI: 10.1155/2024/5415597.

Radiographic Position of Impacted Mandibular Third Molars and Their Association with Pathological Conditions.

Haddad Z, Khorasani M, Bakhshi M, Tofangchiha M, Shalli Z Int J Dent. 2021; 2021:8841297.

PMID: 33833805 PMC: 8012125. DOI: 10.1155/2021/8841297.

CBCT does not reduce neurosensory disturbances after third molar removal compared to panoramic radiography: a systematic review and meta-analysis.

de Toledo Telles-Araujo G, Peralta-Mamani M, Caminha R, Moraes-da-Silva A, Rubira C, Honorio H Clin Oral Investig. 2020; 24(3):1137-1149.

PMID: 32052178 DOI: 10.1007/s00784-020-03231-6.

Automated detection of third molars and mandibular nerve by deep learning.

Vinayahalingam S, Xi T, Berge S, Maal T, de Jong G Sci Rep. 2019; 9(1):9007.

PMID: 31227772 PMC: 6588560. DOI: 10.1038/s41598-019-45487-3.

Risk stratification against inferior alveolar nerve injury after lower third molar extraction by scoring on cone-beam computed tomography image.

Kubota S, Imai T, Nakazawa M, Uzawa N Odontology. 2019; 108(1):124-132.

PMID: 31209581 DOI: 10.1007/s10266-019-00438-2.