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Complications of CAD/CAM Fabricated Surgical Template for Static Computer-Aided Implant Surgery

Open Journal of Stomatology 2022年第4期12卷 103-107页

作者： yu kishimoto yuka Hasegawa Yasunori Kanemitsu Kuniteru Nagahara Tetsuji Nakamoto Department of Maxillofacial Implant Asahi University School of Dentistry Mizuho Japan Asahi University Medical and Dental Center Mizuho Japan

Purpose: Surgical templates produced by digital simulation and CAD/CAM allow for three-dimensional control of implant placement. However, due to clinical limitations, there are complications during the use of the template. The purpose of this study was to summarize the complications associated with the use of surgical templates for static computer-aided implant surgery. Methods: Complications were collected during the observation period, and then their implant sites were reanalyzed with simulation software. Results: There were 104 cases during the observation period, 5 cases had complications. Mechanical complications were observed in four cases, including three cases in which the frame of the template fractured during implant placement surgery and one case in which the sleeve fell off the surgical template. In one case, there was an error in the planned position. All cases were mandibular molar cases, and all cases of frame fracture were at the free end defect site. All cases had a Hounsfield unit of more than 700 at the implant site, and some of them had a significantly small jaw opening. Conclusion: Although the spread of CAD/CAM surgical templates has made it possible to avoid problems caused by the position of the implant, it has been difficult to avoid fractures in cases of mandibular free end defects with high Hounsfield unit.

关键词： CAD/CAM Surgical Template Static Computer-Aided Implant Surgery

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A Study of Plaque Adhesion during Implant Treatment of Missing Molars

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Open Journal of Stomatology 2022年第3期12卷 96-102页

作者： yuka Hasegawa yu kishimoto Yasunori Kanemitsu Toshiichiro Tanabe Kuniteru Nagahara Tetsuji Nakamoto Department of Maxillofacial Implant School of Dentistry Asahi University Mizuho Japan Medical and Dental Center Asahi University Mizuho Japan

Purpose: In implant treatment, the abutments and superstructures form a transmucosal area. In addition to providing appropriate cleaning instructions to patients, its material properties must be carefully considered. It is not clear how much plaque adhesion occurs at each site during treatment process, and the effect of materials on plaque adhesion. Methods: In this study, 33 patients, 13 maxillary cases and 20 mandibular cases, who had implants placed in the missing molars were evaluated for the plaque adhesion of provisional restorations made of acrylic resin and monolithic zirconia final restoration after a period of more than 4 weeks. In addition, oral hygiene instructions were thoroughly given for 12 cases at the time of staining after the provisional restorations, and re-evaluated in 4 weeks. Results: About 20% of the buccal-lingual area of the prosthetic device fabricated with acrylic resin showed plaque staining, whereas about 40% of the area of the mesial and distal. On the other hand, for the zirconia final restorations, the percentage of staining was about 5% for buccal and lingual surface and 10% for mesial and distal surface. The stained area ratio of the provisional restoration correlated with the zirconia superstructure area ratio. Even with careful oral hygiene, it became clear that the amount of plaque adhesion due to the difference in materials could not be overcome. Conclusion: The zirconia superstructure is extremely good from the viewpoint of plaque adhesion, but cases with a large stained area at the time of provisional restoration should be carefully followed up.

关键词： Superstructure Dental Plaque Yttria-Stabilized Zirconia Polymethyl Methacrylate

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他人指向社交焦虑量表的中文版修订

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中国临床心理学杂志 2018年第1期26卷 35-38页

作者：王衎林令瑜岸本鹏子钱铭怡杨寅赵晴雪北京大学心理与认知科学学院行为与心理健康北京市重点实验室北京100080

目的:翻译并修订他人指向社交焦虑量表(Taijin Kyofusho Scale,TKS)中文版,考察该量表在中国文化背景下的适用性及信效度,并对中国他人指向的社交焦虑水平与国外的研究结果进行比较。方法:对国内498名被试进行施测,通过项目分析和验证... 详细信息

目的:翻译并修订他人指向社交焦虑量表(Taijin Kyofusho Scale,TKS)中文版,考察该量表在中国文化背景下的适用性及信效度,并对中国他人指向的社交焦虑水平与国外的研究结果进行比较。方法:对国内498名被试进行施测,通过项目分析和验证性因素分析等方法,进行量表的结构效度、效标效度和信度检验。另比较东西方共五国的他人指向社交焦虑水平差异。结果:(1)验证性因素分析结果显示,TKS的单因素结构拟合较好,内部一致性信度为0.938,分半信度为0.903,重测信度为0.863。以社会交往焦虑和社交恐惧量表上的得分为效标,TKS量表的效标效度分别为0.69和0.67。(2)中国他人指向的社交焦虑水平与日本和印度尼西亚更为接近,且明显高于英国和瑞士的水平。结论:TKS量表的中文版具有较高的信效度。中国被试他人指向的社交焦虑水平类似日本等亚洲国家。

关键词： TKS量表他人指向的社交焦虑信度效度

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