Department of Prosthodontics, Faculty of Dentistry, Jordan University of Science & Technology, Irbid, Jordan.
Clin Oral Implants Res. 2011 Jun;22(6):638-44. doi: 10.1111/j.1600-0501.2010.02011.x. Epub 2010 Oct 6.
To evaluate the effects and interactions between cement type, abutment height and surface roughness on bond strength of cemented implant restorations.
One hundred and sixty metal copings were fabricated and divided into 16 groups of 10 samples each. Copings were cemented on 4 and 6 mm height Alfa-Gate(®) abutment, using four types of cements: zinc phosphate (ZNP), glass ionomer (GI), and zinc oxide eugenol (ZOE) with or without 15% vaseline. Copings were removed using a universal testing machine and bond strengths were recorded. All abutments were sandblasted with 50 μm aluminum oxide and the experiment was repeated. Results were analyzed using univariate analysis, Games-Howell, and Bonferroni's pairwise comparisons tests at P≤0.05.
Bond strengths were significantly different according to cement type, abutment height, and surface roughness (P=0.001). The cement ranking from highest to lowest was: ZNP>GI>ZOE>zinc oxide eugenol with 15% vaseline (ZOEV). An increasing abutment height showed a significant increase in bond strength for permanent cements only (P≤0.05). Sandblasting abutment surface significantly the increased bond strength for all cement except the ZOEV at 4 mm abutment, and for only ZOE and GI cements at the 6 mm abutment (P≤0.05).
ZP was the strongest cement and required using one of the variables (height, surface roughness) for maximum bond strength. GI bond strength was increased by both variables but sandblasting was more effective. ZOE required using both variables to be as effective as some of the permanent cement subgroups. ZOEV was the weakest and bond strength was not improved by either variables.
评估水泥类型、基台高度和表面粗糙度对粘固式种植体修复体粘结强度的影响及相互作用。
制作 160 个金属冠，并将其分为每组 10 个样本的 16 组。使用四种水泥（磷酸锌、玻璃离子、氧化锌丁香油，以及含或不含 15%凡士林的氧化锌丁香油）将冠粘固于高度为 4 和 6mm 的 Alfa-Gate（®）基台上。使用万能试验机去除冠，并记录粘结强度。所有基台均用 50μm 氧化铝喷砂处理，重复实验。使用单变量分析、Games-Howell 和 Bonferroni 两两比较检验，对 P≤0.05 的结果进行分析。
根据水泥类型、基台高度和表面粗糙度，粘结强度有显著差异（P=0.001）。粘结强度从高到低的排序为：磷酸锌>玻璃离子>氧化锌丁香油>含 15%凡士林的氧化锌丁香油。只有永久性水泥的基台高度增加会显著增加粘结强度（P≤0.05）。喷砂处理基台表面会显著增加除 4mm 基台的含 15%凡士林的氧化锌丁香油外所有水泥的粘结强度，以及仅在 6mm 基台的氧化锌丁香油和玻璃离子的粘结强度（P≤0.05）。
磷酸锌是最强的水泥，需要使用变量（高度、表面粗糙度）中的一个来获得最大粘结强度。玻璃离子的粘结强度可以通过两个变量增加，但喷砂处理更为有效。氧化锌丁香油需要使用两个变量才能与某些永久性水泥亚组的效果相当。含 15%凡士林的氧化锌丁香油是最弱的，两种变量都不能提高粘结强度。
