No-waiting dentine self-etch concept—Merit or hype

Huang, Xue-Lin; Pucci, César Rogério; Luo, Tao; Breschi, Lorenzo; Pashley, David H.; Niu, Li Na; Tay, Franklin R.

doi:10.1016/j.jdent.2017.05.007

Cited by 29 publications

(22 citation statements)

References 39 publications

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“…When the application time was prolonged from 0 s to 10 s, SO and SE showed dramatically increased the μTBS (p<0.05). These results agree with the previous studies, which reported that extending the application increased dentin bond strengths compared to 0 s application [13][14][15] . This could have been attributed to insufficient etching of the smear layer because remnants of the smear layer could interrupt the infiltration of resin monomers.…”

Section: Discussionsupporting

confidence: 93%

Incorporation of a hydrophilic amide monomer into a one-step self-etch adhesive to increase dentin bond strength: Effect of application time

et al. 2019

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Recently, commercially available 1-SEAs with a zero application time (i.e., no waiting time) concept, including Clearfil Universal Bond Quick, have been introduced. Clinicians desire not only a reduction in the number of application steps but also quicker application times for dental adhesives, however, a shortened application time may fail to maintain their bond ability 13-15). Previously, it has been reported that a shorter application time than instructed by manufacturers leads to lower bond strengths to dentin 14) , but doubling the application time recommended by the manufacturer increases their bonding performance to dentin for 1-SEAs 16,17) because the application time could influence smear layer removal and/or infiltration of resin monomers to dentin 13). The multifunctional hydrophilic amide monomer in

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Section: Discussionsupporting

confidence: 93%

Incorporation of a hydrophilic amide monomer into a one-step self-etch adhesive to increase dentin bond strength: Effect of application time

et al. 2019

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“…If successful, this recent innovation could constitute a big leap towards achieving optimal user-friendliness in dentin bonding. Unfortunately, the results of a previous study, aimed particularly at this evaluation, demonstrated that GP’s no-waiting self-etch approach resulted in lower bond strengths, thinner hybrid layers, and extensive nanoleakage [10]. In the present study, we also observed lower bond strengths for GP with single applications (10 s) following the manufacturer’s instructions (Table 1).…”

Section: Resultssupporting

confidence: 44%

“…Moreover, their one-step version further simplifies the bonding procedures [9]. Recently, the latest and most versatile version of one-step systems, i.e., universal adhesive systems, have been gaining more attention from clinicians [10]. These systems are more convenient because they can be applied both in self-etch and etch-and-rinse modes, as well as for direct and indirect restorations [11].…”

Section: Introductionmentioning

confidence: 99%

Variable Smear Layer and Adhesive Application: The Pursuit of Clinical Relevance in Bond Strength Testing

Chowdhury

Islam

Alam

et al. 2019

IJMS

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The removal or modification of smear layers that cover the dentin is critical to allow the penetration of adhesive molecules and to ensure a strong bond between resin and dentin. Aiming to establish a model for clinically-relevant dentin-bond testing, we evaluated the effects of smear layers created by abrasives having similar coarseness (180-grit SiC paper; fine-grit diamond bur) and application modes (single application; double application) on the microtensile bond strengths (µTBS) of two currently available universal adhesives (G-Premio Bond; Scotchbond Universal Adhesive) and a two-step self-etch adhesive (Clearfil Megabond 2). Sixty extracted human third molars were used for the μTBS test. Data were analyzed by three-way ANOVA and Tukey’s test (α = 0.05). Fracture modes were determined using stereomicroscopy. An additional 24 third molars were prepared for observation of the resin–dentin interface by TEM and adhesive-smear layer interaction by SEM. μTBS was significantly affected by the adhesives and their application modes (p < 0.001), implying that the double application of universal adhesives should be recommended to improve their performance. The effect of smear layers was not significant (p > 0.05), indicating that 180-grit SiC papers could be used to prepare dentin as a substitute for fine-grit diamond burs for dentin-bond testing in laboratory settings.

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“…The cohesive failures have been stated as non-adhesive failures. 45 It has been reported that the cohesive failures were associated with higher microtensile bond strengths. 38 But, the cohesive failure in dentin might also be related to the lower bond strengths due to the negative effects of irradiation on dentin.…”

Section: Discussionmentioning

confidence: 99%

Effect of the double application of universal adhesives on the dentine bond strength after radiotherapy

Uğurlu

2020

Australian Dental Journal

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Background This study aimed to evaluate the effect of double application of universal adhesives on bond strength to dentine after ionizing radiation. Methods One hundred and forty caries‐free human third molars were used. Half of the teeth were irradiated (IR) (70.2 Gy). The IR and non‐IR teeth were assigned into seven groups (n = 10). Universal adhesives Single Bond Universal (3M Oral Care), Gluma Bond Universal (Heraeus Kulzer) and Prime&Bond Elect (Dentsply) were employed (following manufacturer’s instructions and double application). Two‐step self‐etch adhesive Clearfil SE Bond (Kuraray Noritake) was used as control. After composite build‐ups were bonded to mid‐coronal occlusal dentine surfaces, the specimens were stored in water (37°C/24 h) and sectioned into microspecimens. The specimens were subjected to μTBS testing (1.0 mm/min). Failure analysis was performed using stereomicroscope and scanning electron microscopy. Data were analysed with two‐way ANOVA and Tukey’s test (P = 0.05). Results The radiotherapy caused reduction in the bond strength of universal adhesives when the adhesives were used with single application after radiotherapy (P < 0.05). The double application resulted in increased bond strength of the universal adhesives to IR dentine (P < 0.05). Conclusions The double application was beneficial in improving the dentine bond strength of universal adhesives affected by radiotherapy after ionizing radiation.

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No-waiting dentine self-etch concept—Merit or hype

Abstract: Although the surge for cutting application time to increase user friendliness remains the most frequently sought conduit for advancement of dentine bonding technology, the use of the present universal adhesive in the no-waiting self-etch mode may not represent the best use of the adhesive.

Cited by 29 publications

References 39 publications

Incorporation of a hydrophilic amide monomer into a one-step self-etch adhesive to increase dentin bond strength: Effect of application time

Incorporation of a hydrophilic amide monomer into a one-step self-etch adhesive to increase dentin bond strength: Effect of application time

Variable Smear Layer and Adhesive Application: The Pursuit of Clinical Relevance in Bond Strength Testing

Effect of the double application of universal adhesives on the dentine bond strength after radiotherapy

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