Behr Michael, Spitzer Anja, Preis Verena, Weng Dietmar, Gosau Martin, Rosentritt Martin
Int J Oral Maxillofac Implants. 2014 Sep-Oct;29(5):1185-92. doi: 10.11607/jomi.3523.
To quantify the cement remnants on titanium and zirconia abutment analogs after cement removal by resin and steel scalers.
Defined areas of titanium or zirconia cylindric samples were covered with thin cement rings of zinc oxide phosphate (ZOP), glass ionomer (GIC), carboxylate (CAB), zinc oxide-eugenol (ZOE), or zinc oxide-eugenol-free (ZOEF). The cements were mixed with liquid-to-powder ratios of 50%, 75%, 100%, and 150% of powder. After setting and aging by thermocycling, each specimen was scaled by a blinded, trained clinician. Standardized digital photos of the scaled areas were analyzed according to a four-point classification scheme for remnants, and the results were analyzed statistically.
The main effects of the independent variables "cement type," "abutment material," and "scaler" showed statistically significant differences for all variables. Such differences were also found with regard to the interactions of the variables "cement type" and "material" as well as for the type of cement and scaler. The extent of remnants after scaling differed significantly between titanium and zirconia. Steel scalers achieved statistically significantly better cleaning than resin scalers. The powder-to-liquid ratio of all luting agents significantly influenced the extent of cement surplus after scaling. ZOEF was the only type of cement that could be more successfully removed from titanium than from zirconia.
Nearly complete removal of ZOE could be achieved. This luting agent was not as sensitive to aberrant mixing ratios or to resin or steel scaling as the other types of cement. With the exception of ZOEF, zirconia surfaces were easier to clean. After removal of most of the remnant, some cements showed a barely visible thin greasy or powdery layer.
量化使用树脂和钢质洁治器去除粘固剂后钛和氧化锆基台代型上的粘固剂残留量。
在钛或氧化锆圆柱形样本的特定区域覆盖磷酸锌（ZOP）、玻璃离子水门汀（GIC）、羧酸盐类（CAB）、氧化锌丁香酚（ZOE）或不含氧化锌丁香酚（ZOEF）的薄粘固剂环。将这些粘固剂按粉末的50%、75%、100%和150%的液粉比混合。在通过热循环凝固和老化后，由一名不知情的、经过培训的临床医生对每个样本进行洁治。根据残留量的四点分类方案对洁治区域的标准化数码照片进行分析，并对结果进行统计学分析。
自变量“粘固剂类型”“基台材料”和“洁治器”的主效应在所有变量上均显示出统计学上的显著差异。在变量“粘固剂类型”和“材料”的相互作用以及粘固剂类型和洁治器方面也发现了此类差异。钛和氧化锆洁治后残留的程度有显著差异。钢质洁治器在统计学上比树脂洁治器的清洁效果显著更好。所有粘结剂的粉液比对洁治后粘固剂多余部分程度有显著影响。ZOEF是唯一一种从钛上去除比从氧化锆上去除更成功的粘固剂类型。
可以实现ZOE的几乎完全去除。这种粘结剂不像其他类型的粘固剂那样对异常的混合比例或树脂或钢质洁治敏感。除了ZOEF，氧化锆表面更容易清洁。在去除大部分残留后，一些粘固剂显示出几乎不可见的薄油腻或粉末层。
