Lorenzoni Fabio C, Coelho Paulo G, Bonfante Gerson, Carvalho Ricardo M, Silva Nelson R F A, Suzuki Marcelo, Silva Thelma Lopes, Bonfante Estevam A
Department of Prosthodontics, Integrated Center for Research, Bauru School of Dentistry, University of São Paulo, 17012-901, Bauru, SP, Brazil.
Int J Dent. 2011;2011:864183. doi: 10.1155/2011/864183. Epub 2011 Jul 2.
To evaluate the sealing capability of external hexagon implant systems and assess the marginal fit, two groups (n = 10 each) were employed: SIN (Sistema de Implantes Nacional, Brazil) and Osseotite, (Biomet 3i, USA). Sealing capability was determined by placing 0.7 μL of 1% acid-red solution in the implant wells before the torque of their respective abutments. Specimens were then placed into 2.5 mL vials filled with 1.3 mL of distilled water with the implant-abutment interface submerged. Three samples of 100 μL water were collected at previously determinate times. The absorbance was measured with a spectrophotometer, and the data were analyzed by Two-way ANOVA (P < .05) and Tukey's test. Marginal fit was determined using SEM. Leakage was observed for both groups at all times and was significantly higher at 144 hrs. SEM analysis depicted gaps in the implant-abutment interface of both groups. Gaps in the implant-abutment interface were observed along with leakage increased at the 144 hrs evaluation period.
为评估外六角种植体系统的封闭能力并评估边缘适合性，采用了两组（每组n = 10）：SIN（巴西国家种植体系统）和Osseotite（美国Biomet 3i）。在拧紧各自基台之前，通过在种植体窝内放置0.7μL 1%酸性红溶液来确定封闭能力。然后将标本放入装有1.3 mL蒸馏水的2.5 mL小瓶中，使种植体-基台界面浸没。在预先确定的时间收集三份100μL的水样。用分光光度计测量吸光度，并通过双向方差分析（P < 0.05）和Tukey检验对数据进行分析。使用扫描电子显微镜确定边缘适合性。两组在所有时间均观察到渗漏，且在144小时时显著更高。扫描电子显微镜分析显示两组种植体-基台界面均有间隙。在144小时评估期观察到种植体-基台界面存在间隙，同时渗漏增加。
