Optimizing resin cement removal around esthetic crown margins
Optimizing resin cement removal around esthetic crown margins
复制标题
优化美观牙冠边缘周围树脂粘固剂的去除
DOI：
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复制
发表时间：
2006
影响因子：
2
通讯作者：
C. A. Mitchell
中科院分区：
文献类型：
--
作者：
Y. Mansour;M. R. Pintado;C. A. Mitchell
Objective.量化使用四种不同技术和两种去除多余粘固剂的方法制作的美学冠的冠-牙界面处的粘固剂。材料和方法。采用四种全冠制作方法：全瓷冠加铂箔技术、全瓷冠加耐火模技术、树脂复合冠加CAD/CAM技术、全瓷冠加CAD/CAM技术。将一半的骨水泥冠分配到A组：在初始聚合后3分钟用塑料器械弹掉多余的骨水泥，或B组：用棉球擦拭去除多余的骨水泥。使用非破坏性数字轮廓测量法对多余骨水泥体积（mm 3）、平均最大和平均多余骨水泥深度（µm）以及多余骨水泥表面积（mm 2）进行形态学测量。结果方差分析和邓肯事后检验显示，四种类型的牙冠制作在保留的胶合剂的体积和平均深度方面没有统计学差异（p<0.05）。与棉球“擦拭”法相比，使用“弹开”法清除多余骨水泥的体积、平均深度和平均最大深度明显更大，但两种方法的平均表面积无统计学差异。结论.根据临床判断，使用两种方法去除多余的粘固剂后，亚临床量的粘固剂在牙冠-牙齿界面处仍然粘附在所有样本的牙齿表面上。
Objective. To quantify luting cement at the crown–tooth interface of esthetic crowns fabricated using four different techniques and two methods of excess cement removal. Material and Methods. Four methods of crown fabrication were used: the feldspathic porcelain and platinum foil technique, the feldspathic porcelain and refractory die technique, the resin composite crown and CAD/CAM technique, and the feldspathic porcelain crown and CAD/CAM technique. Half of the cemented crowns were allocated to Group A: removal of excess cement by flicking-off with a plastic instrument 3 min after initial polymerization, or Group B: removal of excess cement using a wiping action with cotton pellets. Morphologic measurements, using non-destructive digital profilometry, were made of the volume of excess cement (mm3), mean maximum and mean depth of excess cement (µm), and surface area of excess cement (mm2). Results. ANOVA and Duncan post-hoc tests revealed no statistical differences (p<0.05) between the four types of crown fabrication with respect to volume and mean depth of retained luting cement. There was a significantly greater volume, mean depth, and mean maximum depth of luting cement retained using the “flick off” method compared to the cotton pellet “wiping” method for excess cement removal, but no statistical differences in mean surface area between the two methods. Conclusions. Following removal of excess luting cement, as judged clinically, using two methods, subclinical amounts of cement remained adherent to the tooth surface of all specimens at the crown–tooth interface.
两种技术制作的瓷贴面的边缘保真度和微渗漏。
DOI：
10.1016/0022-3913(92)90040-h
发表时间：
1992
期刊：
The Journal of prosthetic dentistry
影响因子：
--
作者：
Sorensen,JA;Strutz,JM;Avera,SP;Materdomini,D
通讯作者：
Materdomini,D
通过计算机图形学测量表面轮廓的变化。
DOI：
10.1016/s0109-5641(85)80061-0
发表时间：
1985
期刊：
Dental materials : official publication of the Academy of Dental Materials
影响因子：
--
作者：
DeLong,R;Pintado,M;Douglas,WH
通讯作者：
Douglas,WH
使用图像处理技术测量体内密封剂体积。
DOI：
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发表时间：
1988
期刊：
Quintessence international (Berlin, Germany : 1985)
影响因子：
--
作者：
Pintado,MR;Conry,JP;Douglas,WH
通讯作者：
Douglas,WH