Luo GM, Yao ZS, Huang WX, Zou LY, Yang Y. Two-stage extraction by partial grinding of impacted mandibular third molar in close proximity to the inferior alveolar nerve. World J Clin Cases 2024; 12(10): 1728-1732 [PMID: 38660071 DOI: 10.12998/wjcc.v12.i10.1728]
Corresponding Author of This Article
Yan Yang, Director, Kunming Medical University School and Hospital of Stomatology, No. 1088 Middle Haiyuan Road, High-Tech Zone, Kunming 650106, Yunnan Province, China. 247822829@qq.com
Research Domain of This Article
Dentistry, Oral Surgery & Medicine
Article-Type of This Article
Retrospective Study
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
World J Clin Cases. Apr 6, 2024; 12(10): 1728-1732 Published online Apr 6, 2024. doi: 10.12998/wjcc.v12.i10.1728
Two-stage extraction by partial grinding of impacted mandibular third molar in close proximity to the inferior alveolar nerve
Guang-Ming Luo, Zhang-Shun Yao, Wei-Xiang Huang, Lei-Yan Zou, Yan Yang
Guang-Ming Luo, Zhang-Shun Yao, Wei-Xiang Huang, Lei-Yan Zou, Yan Yang, Kunbaida Outpatient Department, Kunming Medical University School and Hospital of Stomatology, Kunming 650106, Yunnan Province, China
Guang-Ming Luo, Zhang-Shun Yao, Wei-Xiang Huang, Lei-Yan Zou, Yan Yang, Yunnan Key Laboratory of Stomatology, Kunming 650106, Yunnan Province, China
Author contributions: Luo GM performed the experiment, contributed significantly to manuscript preparation, performed the data analyses, and wrote the manuscript; Yao ZS, Huang WX, Zou LY, and Yang Y contributed to the conception of the study and helped perform the analysis with constructive discussions.
Institutional review board statement: This study was reviewed and approved by the Ethics Committee of Kunming Medical University School and Hospital of Stomatology.
Informed consent statement: All study participants or their legal guardian provided informed written consent about personal and medical data collection prior to study enrolment.
Conflict-of-interest statement: We have no financial relationships to disclose.
Data sharing statement: The datasets used and/or analysed during the current study are available from the corresponding author upon reasonable request.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Yan Yang, Director, Kunming Medical University School and Hospital of Stomatology, No. 1088 Middle Haiyuan Road, High-Tech Zone, Kunming 650106, Yunnan Province, China. 247822829@qq.com
Received: October 4, 2023 Peer-review started: October 4, 2023 First decision: November 1, 2023 Revised: November 15, 2023 Accepted: March 12, 2024 Article in press: March 12, 2024 Published online: April 6, 2024
Abstract
BACKGROUND
Extraction of impacted third molars often leads to severe complications caused by damage to the inferior alveolar nerve (IAN).
AIM
To proposes a method for the partial grinding of an impacted mandibular third molar (IMM3) near the IAN to prevent IAN injury during IMM3 extraction.
METHODS
Between January 1996 and March 2022, 25 patients with IMM3 roots near the IAN were enrolled. The first stage of the operation consisted of grinding a major part of the IMM3 crown with a high-speed turbine dental drill to achieve sufficient space between the mandibular second molar and IMM3. After 6 months, when the root tips were observed to be away from the IAN on X-ray examination, the remaining part of the IMM3 was completely removed.
RESULTS
All IMM3s were extracted easily without symptoms of IAN injury after extraction.
CONCLUSION
Partial IMM3 grinding may be a good alternative treatment option to avoid IAN injury in high-risk cases.
Core Tip: The use of cone-beam computed tomography (CBCT) may prevent damage to the inferior alveolar nerve (IAN), but not reduce the risk of injuries to IAN during impacted mandibular third molar extraction. In our clinic, although the incidence of IAN injury is very low because of adoption of CBCT, we have adopted two-stage extraction in order to avoid injury to IAN to the greatest extent. Compared with other existing methods, our method is safer and better, which is worth promoting.
