计算机辅助设计导板修复上颌后种植体头部和角度偏离不影响种植体的植入精度

发布时间：2018-06-09 06:39

本文选题：牙种植体 + 计算机辅助设计　；参考：《中国组织工程研究》2016年20期

【摘要】：背景:上颌后牙缺损修复可以采用种植牙技术,但以往的种植模板大多利用传统石膏模型完成,无法有效保证种植体植入的准确性,容易导致各种并发症的出现,影响修复效果。目的:探讨计算机辅助设计和计算机辅助制作外科导板在上颌后牙种植修复过程中的应用效果。方法:纳入30例上颌后牙牙列缺损患者,均实施种植修复治疗。经CT上颌骨扫描,利用计算机辅助设计/计算机辅助制造技术(computer aided design/computer aided manufacturing technology,CAD/CAM)制作外科导板,在导板辅助下植入种植体进行修复。植入后测量虚拟植入位置和实际植入的偏差情况,随访12个月,观察临床修复效果与患者口腔牙周组织情况。结果与结论:(1)30例患者一共涉及36个CAD/CAM外科导板,经患者戴入口腔之后均获得稳定的固位效果;(2)36枚种植体,均在外科导板辅助下顺利完成准确的,植入过程未出现任何问题;(3)植入后种植体的虚拟植入位置和实际植入位置之间存在的头部偏离情况极小,不会对临床种植体植入精度产生影响;(4)植入前与植入后6及12个月患者的口腔牙周组织龈沟液、肿瘤坏死因子α、龈沟出血指数无明显变化;(5)结果说明在上颌后牙临床治疗过程中,利用CAD/CAM外科导板进行种植体修复治疗会出现一定的种植体头部偏离和角度偏离现象,但并不影响种植体的植入精度,修复效果理想,且治疗后患者处于良好的牙周组织状态。
[Abstract]:Background: dental implants can be used to repair maxillary posterior tooth defects. However, most of the implant templates used in the past were completed by traditional plaster models, which could not effectively guarantee the accuracy of implant implants and could easily lead to various complications. Affect the effect of restoration. Objective: to investigate the effect of computer aided design (CAD) and computer aided fabrication (CAD) of surgical guide plate in the process of maxillary posterior tooth implant restoration. Methods: 30 patients with maxillary posterior dentition defect were treated with implant repair. Through CT scanning of maxilla, the surgical guide plate was made by computer aided design/computer aided manufacturing technology (CAD / CAD / CAM), and the implant was implanted with the aid of the guide board for repair. After implantation, the deviation between the virtual implant location and the actual implantation was measured and followed up for 12 months to observe the effect of clinical restoration and the oral periodontal tissue of the patients. Results and conclusion A total of 36 CAD / CAM surgical guides were involved in 30 patients with 1 / 30 cases, and 236 implants were successfully completed with the aid of surgical guide plate after wearing them into the oral cavity. There is no problem with the implant.) there is a minimal head deviation between the virtual implant location and the actual implant location. Gingival crevicular fluid (GCF) in oral periodontal tissue of patients 6 and 12 months before and 6 and 12 months after implantation did not affect the accuracy of clinical implants. Tumor necrosis factor 伪, no significant change in gingival sulcus bleeding index (TNF- 伪). The results showed that during the clinical treatment of maxillary posterior teeth, implant prosthesis repair with CAD / CAM surgical guide board would lead to a certain deviation of implant head and angle. But it does not affect the implant implantation precision, the effect of restoration is ideal, and the patients are in good periodontal tissue state after treatment.
【作者单位】：云南省第一人民医院;昆明医科大学第一附属医院;
【基金】：云南省自然科学基金面上项目(2009CD087)~~
【分类号】：R783.6

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