Management of accidental tooth root displacement into the mandibular canal during tooth extraction.
10.7518/hxkq.2025.2025298
- Author:
Liwen SU
1
;
Jihong ZHAO
1
Author Information
1. State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
- Publication Type:English Abstract
- Keywords:
complication;
inferior alveolar nerve;
mandibular canal;
root displacement;
surgery
- MeSH:
Humans;
Tooth Extraction/adverse effects*;
Mandible/surgery*;
Tooth Root;
Mandibular Nerve/anatomy & histology*;
Postoperative Complications/prevention & control*;
Intraoperative Complications;
Mandibular Nerve Injuries/etiology*
- From:
West China Journal of Stomatology
2025;43(6):789-796
- CountryChina
- Language:Chinese
-
Abstract:
The accidental displacement of tooth roots into the mandibular canal is a serious complication during tooth extractions in oral and maxillofacial surgery, often resulting in direct damage to the structural and functional integrity of the inferior alveolar neurovascular bundle (IANB). This article reviews the anatomical features of the mandibular canal, the IANB, and adjacent tooth roots; identifies high-risk factors and anatomically vulnerable sites for root displacement; and outlines the clinical manifestations and radiographic characteristics of intraoperative root intrusion into the mandibular canal. Furthermore, management principles, surgical approaches and techniques, inferior alveolar nerve injury treatment, and prognostic considerations are discussed. The aim of this review is to provide a comprehensive clinical reference for improving surgical outcomes, and reducing postoperative complications.
