Self-Etch Silane Primer: Reactivity and Bonding with a Lithium Disilicate Ceramic
Self-Etch Silane Primer: Reactivity and Bonding with a Lithium Disilicate Ceramic
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DOI：
10.3390/ma13030641
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发表时间：
2020-02-01
期刊：
影响因子：
3.4
通讯作者：
Eliades, George
中科院分区：
文献类型：
--
作者：
Dimitriadi, Maria;Zinelis, Spiros;Eliades, George
本研究的目的是评估自酸蚀硅烷底漆(Monobond Etch和Prime/MEP)的稳定性、反应性和与二硅酸锂陶瓷的结合强度。用H-1-，P-31-核磁共振波谱(老化前后)和微量MIR-FTIR光谱评价了其在Ge表面(0，1，24 h)上的反应活性，并以预水解硅烷底漆(CALIBRA硅烷偶联剂/CLB)为对照。用光学轮廓术比较了MEP和5%HF刻蚀对陶瓷表面粗糙度的影响。在水中(A：37℃/1周，B：5000x/5-55℃和C：100℃/24 h)中，评估了经MEP、不含硅烷的HF(HF+NS)、HF+CLB和HF+MEP(n=20)处理的树脂复合材料与抛光陶瓷表面的剪切粘结强度(SBS)。老化对MEP的硅醇基没有影响，但对磷酸共聚单体有影响。硅烷醇是反应性形成的硅氧烷，但其消耗速率低于CLB。在所测试的所有粗糙度参数(Sa、Sz、Sdr、Sc、Sv)中，HF腐蚀引起的值显著高于MEP，其中SDR和Sv的差异最大。对于SBS，除A的HF+NS外，MEP均低于所有处理/贮藏条件，两者的值相似。然而，在HF腐蚀的衬底上，MEP提供了最高的强度和可靠性。
The aim of the study was to evaluate the stability, reactivity, and bond strength with a lithium disilicate ceramic of a self-etch silane primer (Monobond Etch and Prime/MEP). The stability was evaluated by H-1-,P-31-NMR spectroscopy (before/after aging), and the reactivity by micro MIR-FTIR spectroscopy on Ge surfaces (0, 1, 24 h) using a prehydrolyzed silane primer (Calibra Silane Coupling Agent/CLB), as a control. The effect of MEP vs. 5% HF-etching on ceramic roughness was assessed by optical profilometry. The shear bond strength (SBS) of a resin composite bonded to polished ceramic surfaces treated with MEP, HF without silane (HF+NS), HF+CLB, and HF+MEP (n = 20) was evaluated after storage in water (A: 37 degrees C/1 week, B: 5000x/5-55 degrees C and C: 100 degrees C/24 h). Aging did not affect the silanol groups of MEP, but only the phosphate co-monomer. Silanols were reactive forming siloxanes, but exhibited lower consumption rate than CLB. HF-etching induced significantly higher values than MEP, in all the roughness parameters tested (Sa, Sz, Sdr, Sc, Sv), with the greatest differences found in Sdr and Sv. For SBS, MEP was inferior to all treatments/storage conditions, except of HF+NS in A, where the values were similar. However, on a HF-etched substrate, MEP provided highest strength and reliability.