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首页> 外文期刊>The Journal of Prosthetic Dentistry >Wettability, imbibition, and mass change of disinfected low-viscosity impression materials.
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Wettability, imbibition, and mass change of disinfected low-viscosity impression materials.

机译：消毒后的低粘度印模材料的润湿性，吸收性和质量变化。

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Statement of Problem. There is an ongoing effort by dental manufacturers to create impression materials with improved wetting properties. Disinfection solutions may alter the surface characteristics of these newer materials. Purpose. This study compared wettability, imbibition, and mass change of various recently introduced automixed low-viscosity addition silicone and polyether materials before and after immersion disinfection. Material and Methods. The Wilhelmy technique was used for deriving wetting properties of 5 addition silicone materials (Clinician's Choice Affinity, Clinician's Choice Superhydrophilic [experimental], Kerr's Take One, 3M's Imprint II, and Dentsply's Aquasil LV) and 2 polyether materials (ESPE's Permadyne Garant and Impregum Garant). Conditions included a control with no disinfection (0 hours), as well as (1/2) hour of immersion disinfection in a full-strength solution of 2% acid glutaraldehyde disinfectant (Banicide). Weight changes before and after disinfection and weight loss in air were measured over an 18-hour period to detect imbibition and mass change over time. The data were analyzed with a 1-way analysis of variance at alpha=0.05, with n = 3 for advancing (ACA) and receding (RCA) contact angles and n = 2 for imbibition and mass change. Results. Statistical significant differences in wettability (P<.001) were found among nondisinfection control groups, as well as among (1/2)-hour disinfection groups. Polyethers were the most wettable materials overall. Impregum Garant polyether demonstrated significantly lower RCA for the control (48.4 degrees) and at (1/2) hour of disinfection (51.8 degrees). The 2 polyethers and Take One lost mass, whereas Aquasil LV gained mass in air; however, all materials exhibited some degree of imbibition during disinfection. Conclusion. Within the limitations of this study, the 2 polyether materials tested exhibited significantly lower ACA's and RCA's compared with the 5 addition silicones tested. Imbibition for the 2 polyether materials was significantly higher (P<.001). Polyether materials lost significantly more (0.6% to 0.8%) and Aquasil LV gained significantly more (0.6%) mass in air.
机译：问题陈述。牙科制造商正在努力制造具有改善的润湿性能的压印材料。消毒溶液可能会改变这些新型材料的表面特性。目的。这项研究比较了浸泡消毒前后各种新近引入的自动混合的低粘度添加有机硅和聚醚材料的润湿性，吸收性和质量变化。材料与方法。 Wilhelmy技术用于推导5种附加有机硅材料（Clinician's Choice Affinity，Clinician's Choice Superhydrophilic [实验性]，Kerr's Take One，3M's Imprint II和Dentsply的Aquasil LV）和2种聚醚材料（ESPE的Permadyne Garant和Impregumant Garpet）的润湿特性）。条件包括不进行消毒的对照（0小时）以及在2％酸性戊二醛消毒剂（杀菌剂）的全强度溶液中浸泡消毒的时间（1/2）小时。在18小时的时间内测量消毒前后的体重变化和空气中的体重减轻，以检测吸收和质量随时间的变化。数据以方差为1的方差分析（α= 0.05）进行了分析，前进（ACA）和后退（RCA）接触角为n = 3，吸收和质量变化的n = 2。结果。在非消毒对照组以及（1/2）小时消毒组之间，发现可湿性的统计学显着差异（P <.001）。聚醚是整体上最易润湿的材料。 Impregum Garant聚醚在对照组（48.4度）和消毒（1/2）小时（51.8度）时显示出较低的RCA。 2个聚醚和Take One失去了质量，而Aquasil LV在空气中得到了质量;但是，所有材料在消毒过程中都表现出一定程度的吸收性。结论。在本研究的范围内，与所测试的5种添加的有机硅相比，所测试的2种聚醚材料的ACA和RCA显着降低。两种聚醚材料的吸着率明显更高（P <.001）。聚醚材料的空气质量损失明显更多（0.6％至0.8％），而Aquasil LV的质量明显增加（0.6％）。

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