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

doi:10.3969/j.issn.2095-4344.2016.20.007

Abstract

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

CLC Number:

R318

Yuan Zhi1, Chen Yi-hui2. Implantation accuracy is not affected by head and angle deviation following computer aided design guide for repair of maxillary posterior tooth defects[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(20): 2933-2939.

Figures/Tables 3

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