搜索结果: 1-12 共查到“口腔医学 CAD/CAM”相关记录12条 . 查询时间(0.171 秒)
不同基牙设计对CAD/CAM全瓷修复体抗折强度的影响
全瓷修复 CAD/CAM 抗折强度
2020/6/4
研究不同CAD/CAM全瓷修复体修复根充后前磨牙的抗折强度。方法 收集21颗因正畸拔除的上颌第一前磨牙,制备近面及舌尖缺损洞型。样品分为3组,第1组为直接树脂充填组;第2组为保留缺损组;第3组为纤维桩核组,然后利用IPS e.max CAD全瓷修复体进行修复,采用Rely X U200树脂黏结剂进行黏固。对所有样品进行抗折强度测试,采用光学显微镜观察样品的断裂类型。采用SPSS 15.0软件包对数...
观察CAD/CAM玻璃瓷嵌体修复磨牙龋损的临床效果及分析修复失败原因。方法:选择85例患者的102颗磨牙为研究对象,其中Ⅰ类洞30颗,Ⅱ类洞72颗,CAD/CAM嵌体修复后6、12、18个月复诊,参考修正后的美国公共健康(USPHS)标准对其临床效果进行评价并分析修复失败原因。
陶瓷还是复合树脂？CAD/CAM树脂基陶瓷材料的研究进展
树脂基陶瓷 计算机辅助设计/计算机辅助制造 材料性能 临床应用
2018/10/31
近年树脂基陶瓷产品大量出现,做为一种新型的计算机辅助设计/计算机辅助制造(computer aided design/ computer aided manufacturing,CAD/CAM)冠部修复材料,具有良好的生物相容性、机械加工性能、粘接性能、美学特性及与天然牙体组织相近的物理特性。本文结合文献就树脂基陶瓷的性能及临床应用的研究进展进行综述。
CEREC 椅旁CAD/CAM 诊室技术25 年的研究进展
计算机辅助设计和计算机辅助制作 工艺流程 陶瓷 二矽酸锂
2014/3/11
25 年来，椅旁计算机辅助设计和计算机辅助制作（CAD/CAM）技术在口腔诊室中的应用不断发展，口腔材料的改进也加速了CAD/CAM 技术的革新，这些使得口腔医生几乎能迅速、精确地为每位患者提供高品质、高美观的修复体。基于CAD/CAM 技术在口腔科应用的不断增加，制造商对CEREC 系统的硬件、软件和材料进行了大量改进，口腔医生可以在诊室内不受工艺流程的干扰制作出技工室水平的修复体。本文就CER...
Effect of Sintering on the Marginal and Internal Fit of CAD/CAM-fabricated Zirconia Frameworks
Zirconia ceramics CAD/CAM system Framework
2009/9/14
The aim of this study was to investigate the effect of post-machining sintering on marginal and internal fit of CAD/CAM-fabricated zirconia frameworks. Single crown copings (A: abutment), three-unit b...
Bonding Strength of Resin Cement to Silicate Glass Ceramics for Dental CAD/CAM Systems is Enhanced by Combination Treatment of the Bonding Surface
Glass ceramics Shear bond strength Surface modification
2009/9/14
To increase the bond strength of CAD/CAM-fabricated, leucite-reinforced glass ceramics with a resin cement, the effects of the following were investigated: surface modification by tribochemical (TBC) ...
Machining Accuracy of Crowns by CAD/CAM System Using TCP/IP: Influence of Restorative Material and Scanning Condition
TCP/IP CAD/CAM Machining accuracy
2009/9/14
The purpose of this study was to determine the optimal condition for fabricating accurate crowns efficiently using an internet-based CAD/CAM system. The influences of three different CAD/CAM restorati...
Effect of preparation angles on the precision of zirconia crown copings fabricated by CAD/CAM system
Preparation angle Zirconia Precision
2009/9/14
The aim of this in vitro study was to evaluate the effects of different preparation angles on the precision of fit of zirconia crown frameworks. Dies were fabricated with three different preparation a...
Marginal and Internal Fit of All-ceramic Crowns Fabricated with Two Different CAD/CAM Systems
Marginal and internal fit All-ceramic crown CAD/CAM system
2009/9/11
This study evaluated the accuracy of marginal and internal fit between the all-ceramic crowns manufactured by a conventional double-layer computer-aided design/computer-aided manufacturing (CAD/CAM) s...
A review of dental CAD/CAM:current status and future perspectives from 20 years of experience
CAD/CAM Crowns and fixed partial dentures Digitizing Network Zirconia
2009/9/11
In this article, we review the recent history of the development of dental CAD/CAM systems for the fabrication of crowns and fixed partial dentures (FPDs), based on our 20 years of experience in this ...
目的 了解Cerec 2 型机摄像头的口外控制装置对CADPCAM全瓷底层冠适合性的影响。方法 采用口外控制装置的摄像头与未使用控制装置的摄像头对照,分别采集光学印模形成数字化模型,加工Vita MK Ⅱ及自行研制的多孔氧化铝瓷,制作24 个全瓷底层冠,经包埋、切开后,使用扫描电镜和计算机图像分析仪测量底层冠内部和边缘间隙,比较其适合性差异。结果 使用控制装置组同未使用控制装置组相比:颊侧颈部间隙...