No-waiting dentine self-etch concept-Merit or hype
No-waiting dentine self-etch concept-Merit or hype
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无需等待的牙本质自蚀刻概念——优点还是炒作
DOI：
10.1016/j.jdent.2017.05.007
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发表时间：
2017-07-01
影响因子：
4.4
通讯作者：
Tay, Franklin R.
中科院分区：
文献类型：
--
作者：
Huang, Xue-qing;Pucci, Cesar R.;Tay, Franklin R.
目的：最近推出的通用粘合剂G-Premio Bond为临床医生提供了另一种选择，即使用自蚀刻技术粘合牙本质，而无需等待粘合剂与粘合基质相互作用（无需等待自蚀刻;日本手册），或在粘合剂不受干扰10秒后（10秒自蚀刻;国际手册）。本研究进行了检查，在体外性能的这种新的通用粘合剂粘接到人类冠状dentine使用两种替代的自蚀刻modes.Methods：一百一十个标本粘接使用两种自蚀刻应用模式和检查有或没有热机械循环（10,000热循环和240,000机械循环），以模拟一年的口内功能。结合试样进行切片微拉伸粘结测试，超微结构和纳米泄漏检查，使用透射电子显微镜。粘合剂应用后的矿化牙本质的组合物的变化进行了检查，使用傅里叶变换红外spectroscopy.Results：减少应用时间和热机械循环导致显着降低的粘结强度，更薄的混合层，和显着更广泛的nanoleakage后热机械循环。使用传统的10秒的应用时间相比，无等待自蚀刻技术，提高了键合性能。然而，nanoleakage是普遍广泛的所有测试参数下采用检查adhesive.Conclusion：虽然足够的粘结强度，牙本质可以实现使用本通用胶粘剂在无等待自蚀刻模式，不需要临床医生等待之前聚合的粘合剂，这种自蚀刻的概念需要进一步的技术改进，它可以被推荐为一种临床技术。
Objective: A recently-launched universal adhesive, G-Premio Bond, provides clinicians with the alternative to use the self-etch technique for bonding to dentine without waiting for the adhesive to interact with the bonding substrate (no-waiting self-etch; Japanese brochure), or after leaving the adhesive undisturbed for 10 s (10-s self-etch; international brochure). The present study was performed to examine in vitro performance of this new universal adhesive bonded to human coronal dentine using the two alternative self-etch modes.Methods: One hundred and ten specimens were bonded using two self-etch application modes and examined with or without thermomechanical cycling (10,000 thermal cycles and 240,000 mechanical cycles) to simulate one year of intraoral functioning. The bonded specimens were sectioned for microtensile bond testing, ultrastructural and nanoleakage examination using transmission electron microscopy. Changes in the composition of mineralised dentine after adhesive application were examined using Fourier transform infrared spectroscopy.Results: Both reduced application time and thermomechanical cycling resulted in significantly lower bond strengths, thinner hybrid layers, and significantly more extensive nanoleakage after thermomechanical cycling. Using the conventional 10-s application time improved bonding performance when compared with the no-waiting self-etch technique. Nevertheless, nanoleakage was generally extensive under all testing parameters employed for examining the adhesive.Conclusion: Although sufficient bond strength to dentine may be achieved using the present universal adhesive in the no-waiting self-etch mode that does not require clinicians to wait prior to polymerisation of the adhesive, this self-etch concept requires further technological refinement before it can be recommended as a clinical technique.