Bond durability of universal adhesive to bovine enamel using self-etch mode
Bond durability of universal adhesive to bovine enamel using self-etch mode
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DOI：
10.1007/s00784-017-2196-x
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发表时间：
2018-04
影响因子：
3.4
通讯作者：
Soshi Suzuki;T. Takamizawa;A. Imai;A. Tsujimoto;K. Sai;M. Takimoto;W. Barkmeier;M. Latta;M. Miyazaki
中科院分区：
文献类型：
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作者：
Soshi Suzuki;T. Takamizawa;A. Imai;A. Tsujimoto;K. Sai;M. Takimoto;W. Barkmeier;M. Latta;M. Miyazaki
本研究的目的是在2年的储水和热循环条件下，检测普通粘接剂在自酸蚀模式下的牙釉质粘接耐久性。材料和方法使用三种市售的通用粘接剂和一种金标准的两步自酸蚀粘接剂。每组制备10个牛牙釉质试件，测定其剪切粘结强度(SBS)，以确定其在热循环(TC)或长期储水(WS)后的粘结耐久性。将粘接试件分为三组：(1)粘接试件在37℃蒸馏水中放置24 h，然后在3000、10,000、20,000或30,000℃下放置；(2)在37℃蒸馏水中存放3个月、6个月、1年或2年；(3)以37°C蒸馏水中放置24 h作为基准。与基线和其他降解条件相比，所有通用粘结剂的釉质SBS在TC和WS方面没有显著降低。结论与两步自酸蚀粘接剂相比，通用粘接剂获得的粘接强度显著降低。然而，在两种降解条件下，通用粘结剂的釉质粘结耐久性相对稳定。临床相关性目前的数据表明，自酸蚀模式下通用粘接剂的釉质粘结耐久性可能足以用于临床。
ObjectivesThe purpose of this study was to examine the enamel bond durability of universal adhesives in the self-etch mode under 2-year water storage and thermal cycling conditions.Materials and methodsThree commercially available universal adhesives and a gold standard two-step self-etch adhesive were used. Ten specimens of bovine enamel were prepared per test group, and shear bond strength (SBS) was measured to determine the bonding durability after thermal cycling (TC) or long-term water storage (WS). The bonded specimens were divided into three groups: (1) specimens subjected to TC, where the bonded specimens were stored in 37 °C distilled water for 24 h before being subjected to 3000, 10,000, 20,000 or 30,000 TC; (2) specimens stored in 37 °C distilled water for 3 months, 6 months, 1 year or 2 year; and (3) specimens stored in 37 °C distilled water for 24 h, serving as a baseline.ResultsThe two-step self-etch adhesive showed significantly higher SBS than the universal adhesives tested, regardless of the type of degradation method. All universal adhesives showed no significant enamel SBS reductions in TC and WS, when compared to baseline and the other degradation conditions.ConclusionsCompared to the bond strengths obtained with the two-step self-etch adhesive, significantly lower bond strengths were obtained with universal adhesives. However, the enamel bond durability of universal adhesives was relatively stable under both degradation conditions tested.Clinical relevanceThe present data indicate that the enamel bond durability of universal adhesives in the self-etch mode might be sufficient for clinical use.