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首页> 外文期刊>European Journal of Dentistry >Comparison of disinfectants by immersion and spray atomization techniques on the linear dimensional stability of different interocclusal recording materials: An in vitro study
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Comparison of disinfectants by immersion and spray atomization techniques on the linear dimensional stability of different interocclusal recording materials: An in vitro study

机译：浸泡和喷雾雾化技术对不同咬合间记录材料线性尺寸稳定性的比较：体外研究

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Objective: To evaluate and compare the effect of 0.5% chlorhexidine gluconate, 1% sodium hypochlorite, and 2% glutaraldehyde by immersion and spray atomization technique on the linear dimensional stability of Jet bite, Aluwax and Ramitec interocclusal recording materials. Materials and Methods: Three representative materials: Jet bite (addition silicone), Aluwax and Ramitec (polyether) were mixed according to manufacturer's instructions and then specimens were prepared according to the specifications of ISO 4823. All the specimens except the control (distilled water) were treated with disinfectant solutions (0.5% chlorhexidine gluconate, 1% sodium hypochlorite, and 2% glutaraldehyde) for 30 and 60 min (n = 10) by spray and immersion technique. Once removed from the solutions, the test samples were washed in water for 15 s, dried and measured after 24 h 3 times using a measuring microscope with an accuracy of 0.0001 mm. Two-way ANOVA and Tukey's test with significance level of 5% were used to assess the statistical data (α = 0.05). Result: All groups showed no significant difference statistically, in linear dimension when disinfected for 30 min by spray or immersion technique. Polyether had significantly higher dimensional variation when immersed in sodium hypochlorite for 60 min. Addition silicone showed the least dimensional change which ranged from 0.024% to 0.05%, followed by polyether from 0.004% to 0.171% and Aluwax from 0.146% to 0.228%. Conclusion: To preserve the dimensions and surface of the recording materials and effective microbial elimination, restrictions should be applied in the method of disinfection and time duration. However, using the disinfectants either by spray or immersion technique, the dimensional change was <0.5% which was not clinically significant according to the American Dental Association specification no. 19 criteria within the first 24 h.
机译：目的：通过浸入和喷雾雾化技术评估和比较0.5％葡萄糖酸氯己定，1％次氯酸钠和2％戊二醛对喷射咬，Aluwax和Ramitec咬合间记录材料的线性尺寸稳定性的影响。材料和方法：根据制造商的说明，将三种代表性材料：喷射咬合剂（附加硅树脂），Aluwax和Ramitec（聚醚）进行混合，然后根据ISO 4823的规范制备样品。除对照品（蒸馏水）以外的所有样品通过喷雾和浸没技术，用消毒液（0.5％葡萄糖酸氯己定，1％次氯酸钠和2％戊二醛）处理30分钟和60分钟（n = 10）。从溶液中取出后，将测试样品在水中洗涤15 s，干燥，并在24 h后使用测量显微镜3次测量3次，精度为0.0001 mm。显着性水平为5％的双向方差分析和Tukey检验用于评估统计数据（α= 0.05）。结果：所有组经喷雾或浸没技术消毒30分钟后，线性尺寸在统计学上均无显着差异。当浸入次氯酸钠中60分钟时，聚醚具有明显更高的尺寸变化。另外的硅氧烷显示出最小的尺寸变化，其范围为0.024％至0.05％，其次是聚醚的0.004％至0.171％和Aluwax的0.146％至0.228％。结论：为保持记录材料的尺寸和表面并有效消除微生物，应在消毒方法和持续时间上施加限制。但是，通过喷雾或浸没技术使用消毒剂时，尺寸变化小于0.5％，根据美国牙科协会的规范No.5，其临床意义不大。前24小时内19项标准。

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