The potential for facial artery injury during mandibular third molar extraction. An anatomical study using contrast‐enhanced computed tomography

The purpose of this study was to evaluate the risk of injury to the facial (FA) and related arteries during mandibular third molar (MTM) extraction using contrast‐enhanced computed tomography (CE‐CT). CE‐CT images of the MTM region were retrospectively reviewed. The area of the MTM was equally divid...

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Bibliographic Details
Published in:Clinical anatomy (New York, N.Y.) N.Y.), 2021-11, Vol.34 (8), p.1215-1223
Main Authors: Takeshita, Yohei, Ibaragi, Soichiro, Yutori, Hirokazu, Kusukawa, Jingo, Tubbs, R. Shane, Kawazu, Toshiyuki, Asaumi, Junichi, Iwanaga, Joe
Format: Article
Language:English
Subjects:
Anatomy
Arteries
Computed tomography
contrast‐enhanced computed tomography
Cortical bone
Diameters
facial artery
iatrogenic injury
Image contrast
Image enhancement
Injuries
Mandible
Medical imaging
Patients
Soft tissues
Tomography
tooth removal
Weight
wisdom tooth
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Summary:The purpose of this study was to evaluate the risk of injury to the facial (FA) and related arteries during mandibular third molar (MTM) extraction using contrast‐enhanced computed tomography (CE‐CT). CE‐CT images of the MTM region were retrospectively reviewed. The area of the MTM was equally divided into three zones in the coronal images from mesial to distal, that is, zone 1, zone 2, and zone 3. The FA, submental artery (SMA), and sublingual artery (SLA) were identified. The distance from the mandible to FA, SMA, and SLA and the diameter of the FA, SMA, and SLA was measured in three zones, respectively. The thickness of the facial soft tissues and width of the mandible were measured at their maximum. The mean distance from the FA to the buccal cortical bone in zone 1, zone 2 and zone 3 was 2.24 mm, 2.39 mm and 1.67 mm, respectively. The SMA and SLA were found to be distal to the mandible. The mean diameter of the FA was 1.26 mm in males and 1.04 mm in females, respectively (p 
ISSN:0897-3806
1098-2353
DOI:10.1002/ca.23779