中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (20): 2933-2939.doi: 10.3969/j.issn.2095-4344.2016.20.007

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

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

袁  治1,陈一晖2   

  1. 1云南省第一人民医院,云南省昆明市  650031;2昆明医科大学第一附属医院,云南省昆明市  650032
  • 收稿日期:2016-03-27 出版日期:2016-05-13 发布日期:2016-05-13
  • 作者简介:袁治,男,1977年生,云南省昆明市人,汉族,主治医师,主要从事口腔修复研究。
  • 基金资助:

    云南省自然科学基金面上项目(2009CD087)

Implantation accuracy is not affected by head and angle deviation following computer aided design guide for repair of maxillary posterior tooth defects

Yuan Zhi1, Chen Yi-hui2   

  1. 1First People’s Hospital of Yunnan Province, Kunming 650031, Yunnan Province, China; 2First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • Received:2016-03-27 Online:2016-05-13 Published:2016-05-13
  • About author:Yuan Zhi, Attending physician, First People’s Hospital of Yunnan Province, Kunming 650031, Yunnan Province, China
  • Supported by:

    the Natural Science Foundation of Yunnan Province, No. 2009CD087

摘要:

文章快速阅读:

文题释义:
数字化牙种植技术:是当前种植领域顶尖的技术,用专业口腔CT对患者口腔进行数字化影像扫描定位后,影像会以3D的模式将牙齿、牙周组织、牙神经、牙槽骨等逼真地呈现在医生和患者面前。根据这些数据,医生可制定详尽的诊疗方案,患者也可在术前预先看到术后的效果演示。
牙种植体失败:当牙种植体出现以下任何一项情况是:①疼痛;②种植体松动;③X射线片上牙槽骨吸收超过种植体长度的1/2;④种植体周围龈沟液渗出增多;⑤种植体脱落。根据种植体失败的时间不同可分为早期失败和晚期失败。早期失败是发生在上皮长入和骨结合形成的障碍,在骨愈合期间形成了纤维结缔组织;晚期失败是发生在形成了骨结合后,在外力或者炎症作用下,骨结合被破坏。

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:①30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;②36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。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0002-7882-9009(袁治)

关键词: 组织构建, 骨组织工程, 计算机辅助技术, 计算机辅助设计, 计算机辅助制作, 种植牙技术, 外科导板, 种植模板, 上颌后牙, 修复, 云南省自然科学基金

Abstract:

BACKGROUND: Maxillary posterior tooth defects can be repaired using the dental implant. However, implantation accuracy is not ensured by traditional plaster models used as implant template, which leads to the incidence of complications, and affects the repair effects.
OBJECTIVE: To study application effects of surgical guide plates designed using the computer aided design (CAD)/computer aided manufacturing (CAM) technology for the repair of maxillary posterior tooth defects.
METHODS: Implant treatment was performed in 30 patients with maxillary posterior tooth defects. Surgical guide plate was made using the CAD/CAM technology after CT scan of the jaw bone. The repair was conducted with guide plate assistant. The deviation between the virtual and actual implant position was measured after implantation. The clinical repair effects and periodontal tissues were observed during the 12-month follow-up.
RESULTS AND CONCLUSION: Thirty-six CAD/CAM surgical guide plates in 30 patients were stabilized after implantation. Thirty-six implants were emplaced precisely with the assist of the surgical guide plates. There was no any problem during the process of implantation. The deviation of the head between the virtual and actual implant position was very small, which did not affect the accuracy of implant placement. Before and 6 and 12 months after the repair, gingival crevicular fluid, tumor necrosis factor-α, and sulcus bleeding index were not obviously changed in the patients. Our results suggest that the implant head deviation and angle deviation appear during the repair process of maxillary posterior tooth defects using CAD/CAM surgical guide for dental implants; however, the implantation accuracy is not affected. The repair effect is ideal and periodontal tissue is in good status after implantation.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Dental Implants, Computer-Aided Design, Tissue Engineering

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