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首页> 美国卫生研究院文献>Materials >Retention Forces of Monolithic CAD/CAM Crowns Adhesively Cemented to Titanium Base Abutments—Effect of Saliva Contamination Followed by Cleaning of the Titanium Bond Surface
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Retention Forces of Monolithic CAD/CAM Crowns Adhesively Cemented to Titanium Base Abutments—Effect of Saliva Contamination Followed by Cleaning of the Titanium Bond Surface

机译：整体式CAD /凸轮冠的保留力粘附到钛基邻塔的钛基邻接效应然后清洁钛粘结表面

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摘要

The aim of this study was to investigate the effects of saliva contamination and the cleaning of the bond surface of titanium base (ti-base) abutments on the bonding stability and retention force values. The bond surface of the ti-base abutments was treated with airborne-particle abrasion. After contamination, the ti-base abutments underwent different cleaning protocols: water spray (H2O); alcohol (ALC); suspension of zirconium particles (SZP); reapplied airborne-particle abrasion (APA); and a control condition without contamination and cleaning (CTR). All lithium disilicate crowns were bonded to the ti-base abutments using a primer and a self-curing composite. Bonded specimens underwent thermo-mechanical aging. Bond failure analysis and pull-off testing were performed. Bond failure occurred more frequently in groups H2O, ALC, SZP, and APA (p < 0.05). Significant differences in retention force values were only found between CTR and ALC (p < 0.05). Specimens which did not show bond failure after ageing had higher retention force values than the specimens that showed bond failure (p < 0.05). Saliva contamination with cleaning can degrade the bonding properties to titanium. For the retention force values, only the protocol with alcohol after contamination could not restore the values.
机译：本研究的目的是探讨唾液污染的影响和钛基碱（Ti-Base）支座的清洁表面对粘接稳定性和保留力值的影响。用空气颗粒磨损处理Ti-基座的粘合表面。污染后，Ti基支座接受不同的清洁方案：喷水（H2O）;酒精（ALC）;锆颗粒（SZP）的悬浮液;重新填充空中粒子磨损（APA）;和没有污染和清洁（CTR）的控制条件。所有使用引物和自固化复合物键合所有锂峰冠冠粘合到Ti底座上。粘结标本接受热机械老化。进行粘合失败分析和下拉测试。组H 2 O，ALC，SZP和APA组中更频繁地发生粘合失败（P <0.05）。仅在CTR和ALC之间发现保留力值的显着差异（P <0.05）。在老化后未显示粘合衰竭的标本具有比显示粘合衰竭的标本更高的保留力值（P <0.05）。唾液污染清洁可以降解钛的粘合性能。对于保留力值，污染后，只有与酒精的协议无法恢复值。

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