目的:这项研究的目的是评估冠状动脉切除术和下颌第三磨牙完全切除后的手术并发症和神经感觉障碍。
方法:研究样本包括需要手术切除下颌第三磨牙的患者。对220颗牙齿进行了冠状动脉切除术,显示出靠近下牙槽管的迹象。对218颗牙齿进行了完全拔除,没有风险迹象。在手术后1周和1、3、6、12和24个月评估患者的疼痛,肿胀,神经缺陷,干燥插座,术后出血,感染,根迁移,和喷发。
结果:在疼痛和肿胀方面没有显著差异;然而,牙列切除术组的出血和干槽均明显增高(P=0.017).牙齿切除术组(3.7%)的下牙槽神经缺损高于冠状动脉切除术组(0.5%)(P=0.017)。3、6和12个月时,冠状动脉切除牙齿的根部迁移百分比和距离为60%(2.37±0.96mm),66%(3.35±0.86mm),74%(3.85±0.93mm),分别。
结论:冠状动脉切除术是一种安全的手术,当牙根与下颌管密切相关时,应进行。尽管根迁移很常见,根暴露的可能性很低,很少需要去除根。
OBJECTIVE: The aim of this research was to evaluate the surgical complications and neurosensory deficits after
coronectomy and the complete removal of mandibular third molars.
METHODS: The study sample included patients requiring surgical removal of mandibular third molars. A
coronectomy was conducted on 220 teeth showing signs of close proximity to the inferior alveolar canal. A complete extraction was performed on 218 teeth with no risk signs. The patients were evaluated at 1 week and 1, 3, 6, 12, and 24 months after surgery for pain, swelling, neurologic deficit, dry socket, postoperative bleeding, infection, root migration, and eruption.
RESULTS: No significant difference was noted in pain and swelling; however, bleeding and dry socket were significantly higher in the odontectomy group (P = .017). The inferior alveolar nerve deficit was higher in the odontectomy group (3.7%) than the
coronectomy group (0.5%) (P = .017). The percentage and distance of root migration of coronectomised teeth at 3, 6, and 12 months were 60% (2.37 ± 0.96 mm), 66% (3.35 ± 0.86 mm), and 74% (3.85 ± 0.93 mm), respectively.
CONCLUSIONS: Coronectomy is a safe procedure and should be performed when the roots are closely associated with the mandibular canal. Although root migration is common, the likelihood of root exposure is low and roots rarely need removal.