Anat Cell Biol.
2021 Dec;54(4):409-416. 10.5115/acb.21.113.
Comprehensive review of the incisive branch of the inferior alveolar nerve
- Affiliations
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- 1Department of Oral and Maxillofacial Surgery, University of Pennsylvania, Philadelphia, PA, USA
- 2Harvard School of Dental Medicine, Harvard University, Boston, MA, USA
- 3Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA, USA
- 4Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA
- 5Department of Neurology, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA
- 6Department of Anatomical Sciences, St. George’s University, St. George’s, Grenada
- 7Department of Structural & Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA
- 8Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, USA
- 9Dental and Oral Medical Center, Kurume University School of Medicine, Kurume, Fukuoka, Japan
- 10Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan
- 11Department of Surgery, Tulane University School of Medicine, New Orleans, LA, USA
- KMID: 2523570
- DOI: http://doi.org/10.5115/acb.21.113
Abstract
- The incisive branch of the inferior alveolar nerve is a vital anatomical structure within the anterior mandible that has not been thoroughly defined and outlined in reports in the literature until recent years. Advances in radiological imaging, particularly the widespread use of cone-beam computed tomography has allowed for accurate visualization of the mandibular incisive canal (MIC) and its associated incisive branch of the inferior alveolar nerve. Surgical damage to the MIC, which could result in hemorrhage and sensory disturbance, may occur in commonly practiced oral and maxillofacial procedures, such as chin bone harvesting, implant placement, fracture repair and removal of pathologic entities of the anterior mandible. Knowledge of both the presence, dimensions and location of the incisive branch is a vital component to pre and peri-operative planning of oral and maxillofacial surgeries performed within the mandible, particularly within the interforaminal zone. In this article, the terminology, anatomy, imaging, surgical consideration, and pathology of the incisive branch will be discussed.
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