水牛角釉质是粘结强度测试的合适底物吗？
Is buffalo enamel a suitable substrate for bond strength tests?
作者信息
Baia Juliana Costa Pereira, Ribeiro Mara Eliane Soares, Nogueira Bárbara Catarina Lima, Lima Rafael Rodrigues, da Silva E Souza Júnior Mário Honorato, Loretto Sandro Cordeiro
机构信息
Department of Restorative Dentistry, UFPA - Federal University of Pará, Belém, PA, Brazil,
Laboratory of Structural and Functional Biology, UFPA - Federal University of Pará, Belém, PA, Brazil.
出版信息
Clin Cosmet Investig Dent. 2019 Apr 10;11:81-87. doi: 10.2147/CCIDE.S194201. eCollection 2019.
AIM
The aim of this study was to compare the bonding strength of dental materials in buffalo (), bovine, and human enamel and the susceptibility of these substrates in acid etching.
MATERIALS AND METHODS
A total of 20 human third molars, 20 bovine incisors, and 20 buffalo incisors were used in a mechanical assay of microshear. The substrates were demineralized via conditioning with 37% phosphoric acid, and the ultra-morphological pattern of each substrate was analyzed by scanning electron microscopy.
RESULTS
The results showed that there was no significant difference in adhesive bonding strength values between buffalo and human enamel (≥0.05), with a fracture pattern of mixed type for all experimental groups.
CONCLUSION
The results indicate that buffalo enamel is similar to human dental substrate in tests of adhesive bonding strength and also show a similar behavior in the acid conditioning of the enamel.
目的
本研究旨在比较牙科材料在水牛（）、牛和人类牙釉质中的粘结强度，以及这些底物在酸蚀中的敏感性。
材料与方法
总共使用20颗人类第三磨牙、20颗牛切牙和20颗水牛切牙进行微剪切力学试验。通过用37%磷酸进行预处理使底物脱矿，并通过扫描电子显微镜分析每个底物的超微形态模式。
结果
结果表明，水牛和人类牙釉质之间的粘结强度值无显著差异（≥0.05），所有实验组的断裂模式均为混合型。
结论
结果表明，在粘结强度测试中，水牛牙釉质与人类牙齿底物相似，并且在牙釉质的酸预处理中也表现出相似的行为。
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