Singh Kanika, Kumar Sanjeev, Singh Sukumar, Mishra Vijay, Sharma Pradeep Kumar, Singh Deepak
Department of Oral and Maxillofacial Surgery, ITS Centre for Dental Studies and Research, Ghaziabad, Uttar Pradesh, India.
Indian J Dent Res. 2018 Sep-Oct;29(5):605-610. doi: 10.4103/ijdr.IJDR_549_16.
Damage to the inferior alveolar nerve (IAN) while extracting lower third molars is often caused by the intimate relationship between the nerve and the roots of the teeth. The aim of this study was to compare the sequelae of coronectomy with odontectomy in impacted mandibular third molars.
This study included thirty patients which were divided into two groups, Group-I (test group) including 15 patients undergoing coronectomy and Group-2 (control group) of 15 patients undergoing odontectomy. Investigations included digital orthopantomogram. The parameters for this study included pain, swelling, nerve paresthesia, trismus, postoperative infection, postoperative wound dehiscence, postoperative pocket depth, and migration.
In Group-1 (coronectomy group), the patients underwent follow-up for 6 months to evaluate migration of the retained mandibular third molar root which was in proximity with the IAN. There was a mean increase in migration when the distance from the inferior border of IAN until the apex of the retained mandibular third molar root was measured which was by 3.43 mm after 6 months of follow up.
On statistical analysis, the result in this study showed no statistical difference in both the groups in all the parameters that were taken.
拔除下颌第三磨牙时，下牙槽神经（IAN）损伤常因神经与牙根的紧密关系所致。本研究旨在比较阻生下颌第三磨牙冠切除术与牙切除术的后遗症。
本研究纳入30例患者，分为两组，第一组（试验组）15例患者接受冠切除术，第二组（对照组）15例患者接受牙切除术。检查包括数字化曲面断层片。本研究的参数包括疼痛、肿胀、神经感觉异常、牙关紧闭、术后感染、术后伤口裂开、术后袋深度和移位。
在第一组（冠切除术组），患者接受了6个月的随访，以评估与IAN相邻的保留下颌第三磨牙牙根的移位情况。测量从IAN下缘到保留下颌第三磨牙牙根根尖的距离时，随访6个月后移位平均增加了3.43毫米。
经统计学分析，本研究结果显示两组在所有所采用的参数上均无统计学差异。
