Effect of the additive dentine conditioning in all-in-one adhesives on the bonding strength at simulated intrapulpal pressure

<p>The aim of the study was to investigate the infl uence of additive etching of dentine with phosphoric acid on the shear bond strength of two different, self-conditioning, all-in-one adhesives [Adect (ADE), and One-Up-Bond F (OUP)]. Dentine discs from 90 human molars (n = 15 per group) were...

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मुख्य लेखकों: Gerhardt T (लेखक), Hasselmann S (लेखक), Humpich T (लेखक), Fielmann N (लेखक), Giraki M (लेखक), Rüttermann S (लेखक), Gerhardt-Szép S (लेखक)
स्वरूप: पुस्तक
प्रकाशित: Journal of Dental Problems and Solutions - Peertechz Publications, 2019-07-05.
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सारांश:<p>The aim of the study was to investigate the infl uence of additive etching of dentine with phosphoric acid on the shear bond strength of two different, self-conditioning, all-in-one adhesives [Adect (ADE), and One-Up-Bond F (OUP)]. Dentine discs from 90 human molars (n = 15 per group) were exposed to penetration by Ringer's solution (60 cm height, 22 °C) by means of a perfusion device. A two-step, self-conditioning adhesive system [Clearfi l SE (CSE)] was used as the control group. The dentine was either treated (+) after preliminary additive etching wssith 36% phosphoric acid for 20 seconds or left untreated (-). Subsequently, the samples were provided with a composite cylinder (Herculite XRV). After thermocycling (5/55 °C, 5000 cycles, 20 s holding time, 4 s transportation time), the shear bond strength (MPa) was determined with a Zwick universal testing machine (feed rate 5 mm/min). Furthermore, parametric Weibull regression models were applied to evaluate whether there was a signifi cant association between shear bond strength and the method of surface conditioning. Weibull analysis was performed using R software (version 2.11.1, R Foundation for Statistical Computing, Vienna, Austria). Differences between groups were tested using Wald tests, and p-values below 0.05 were considered signifi cant.</p>
डिजिटल ऑब्जेक्ट पहचानकर्ता:10.17352/2394-8418.000068