The influence of moisture control on bond strength of composite resin treated with self-etching adhesive system

Jin, Myoung Uk; Kim, Young Kyung; Park, Jeong Won

doi:10.5395/jkacd.2002.27.4.363

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…Acetone and ethanol are the most popular solvents used for the adhesive agents. Usually acetone is more volatile than ethanol and it is easier to remove after application, but there is less chance for ideal handling and this resulted in more technique sensitivity 10. For the etch-and-rinse system, wet adhesive is essential for preventing the collapse of the exposed collagen fibers.…”

Section: Introductionmentioning

confidence: 99%

“…For the etch-and-rinse system, wet adhesive is essential for preventing the collapse of the exposed collagen fibers. However, the acid in the self-etching system is milder than phosphoric acid, and if the adhesive agent is diluted by the excess water on the adhesive surface, it may reduce the bond strength of the self-etching system 9,10. On the contrary, Werner and Tani reported that the dentin wetness and relative humidity did not affect the bond strength of the one-step self-etching adhesive systems 11…”

Section: Introductionmentioning

confidence: 99%

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Effect of moisture and drying time on the bond strength of the one-step self-etching adhesive system

Lee

Park

2012

Restor Dent Endod

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ObjectivesTo investigate the effect of dentin moisture degree and air-drying time on dentin-bond strength of two different one-step self-etching adhesive systems.Materials and MethodsTwenty-four human third molars were used for microtensile bond strength testing of G-Bond and Clearfil S3 Bond. The dentin surface was either blot-dried or air-dried before applying these adhesive agents. After application of the adhesive agent, three different air drying times were evaluated: 1, 5, and 10 sec. Composite resin was build up to 4 mm thickness and light cured for 40 sec with 2 separate layers. Then the tooth was sectioned and trimmed to measure the microtensile bond strength using a universal testing machine. The measured bond strengths were analyzed with three-way ANOVA and regression analysis was done (p = 0.05).ResultsAll three factors, materials, dentin wetness and air drying time, showed significant effect on the microtensile bond strength. Clearfil S3 Bond, dry dentin surface and 10 sec air drying time showed higher bond strength.ConclusionsWithin the limitation of this experiment, air drying time after the application of the one-step self-etching adhesive agent was the most significant factor affecting the bond strength, followed by the material difference and dentin moisture before applying the adhesive agent.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of moisture and drying time on the bond strength of the one-step self-etching adhesive system

Lee

Park

2012

Restor Dent Endod

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“…Acetone and ethanol are the most popular solvents used for the adhesive agents. Usually acetone is more volatile than ethanol and it is easier to remove after application, but there is less chance for ideal handling and this resulted in more technique sensitivity 11. Residual solvents may compromise the polymerization of adhesives and also directly affect the bond integrity, providing defects within the polymerized adhesive and pathways for nanoleakage 12-14.…”

Section: Introductionmentioning

confidence: 99%

Effect of different air-drying time on the microleakage of single-step self-etch adhesives

2013

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Objectives: This study evaluated the effect of three different air-drying times on microleakage of three self-etch adhesive systems. Materials and Methods: Class I cavities were prepared for 108 extracted sound human premolars. The teeth were divided into three main groups based on three different adhesives: Opti Bond All in One (OBAO), Clearfil S 3 Bond (CSB), Bond Force (BF). Each main group divided into three subgroups regarding the air-drying time: without application of air stream, following the manufacturer's instruction, for 10 sec more than manufacturer's instruction. After completion of restorations, specimens were thermocycled and then connected to a fluid filtration system to evaluate microleakage. The data were statistically analyzed using two-way ANOVA and Tukey-test (α = 0.05). Results: The microleakage of all adhesives decreased when the air-drying time increased from 0 sec to manufacturer's instruction (p < 0.001). The microleakage of BF reached its lowest values after increasing the drying time to 10 sec more than the manufacturer's instruction (p < 0.001). Microleakage of OBAO and CSB was significantly lower compared to BF in all three drying time (p < 0.001). Conclusions: Increasing in air-drying time of adhesive layer in one-step selfetch adhesives caused reduction of microleakage, but the amount of this reduction may be dependent on the adhesive components of self-etch adhesives. ( IntroductionRecently introduced dental adhesives offer simplified clinical application and eliminate technique sensitivity.1 The major benefit of the one-step self-etching systems is that they are less technique sensitive than multi-step systems. While the adhesive system becomes simpler, careful product management is still required in order to attain optimum bonding procedures. However, according to recent studies, the bond quality of these products were affected by several factors, such as enamel surface treatment, smear layer thickness, grit size of the bur, moisture condition of the adhesive surface, drying time after application of the adhesives, and number of multiple coating.2-5 The etching effect of the self-etch adhesives attributed to hydrogen ions derived from the acidic monomers. 6 Water is an essential component in the adhesives, which allows them to generate the hydrogen ions. 7 The moisture control of the adhesive surface can be considered in two parts: the surface moisture before the application of the adhesive agent and the removal of the solvent after application. 8Since self-etching adhesives contain acidic functional monomers and water, which

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“…Recently developed adhesives systems, such as the "one-bottle" system or the "self-etching primer" system, have been shown to be resistant to salivary contamination (El-Kalla & García-Godoy, 1997;Hitmi & others, 1999). Furthermore, in addition to simplifying the bonding technique, self-etching primer eliminates the rinsing and drying steps that reduce the possibility of overwetting or overdrying, both of which can negatively influence adhesion (Milia, Lallai & García-Godoy, 1999;Jin, Kim & Park, 2002). These dentin bonding agents have a reduced number of components and application steps, and this reduces the risk of saliva contamination in the field of operation.…”

Section: Introductionmentioning

confidence: 99%

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2004

Operative Dentistry

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This study evaluated the histological changes in dental pulp after nightguard vital bleaching with 10% carbamide peroxide gel. Fifteen patients between 12 and 26 years of age with caries-free first premolars scheduled for orthodontic extraction were treated with 10% Opalescence (Ultradent Products, Inc). Tooth #5 had four days of bleaching, tooth #12 was treated for two weeks, tooth #21 was bleached for two weeks followed by two weeks without treatment and tooth #28, serving as the control, was without treatment. All teeth were extracted at the same time. Immediately after extraction, 4 mm of the most apical portion of the root was sectioned off and each specimen was placed in a vial containing 10% neutral buffered formalin. The samples were prepared for histological evaluation at the Scandinavian Institute of Dental Materials (NIOM) and microscopically examined independently at both NIOM and Indiana University School of Dentistry (IUSD). Pulp reactions were semi-quantitatively graded as none, slight, moderate and severe. Slight pulpal changes were detected in 16 of the 45 bleached teeth. Neither moderate nor severe reactions were observed. The findings indicate that the slight histological changes sometimes observed after bleaching tend to resolve within two weeks post-treatment. Statistical differences existed only between the untreated control and the four-day (p=0.0109) and two-week (p=0.0045) treatment groups. The findings from this study demonstrated that nightguard vital bleaching procedures using 10% carbamide peroxide might cause initial mild, localized pulp reactions. However, the minor histological changes observed did not affect the overall health of the pulp tissue and were reversible within two weeks post-treatment. Therefore, two weeks of treatment with 10% carbamide peroxide used for nightguard vital bleaching is considered safe for dental pulp.

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The influence of moisture control on bond strength of composite resin treated with self-etching adhesive system

Cited by 4 publications

References 11 publications

Effect of moisture and drying time on the bond strength of the one-step self-etching adhesive system

Effect of moisture and drying time on the bond strength of the one-step self-etching adhesive system

Effect of different air-drying time on the microleakage of single-step self-etch adhesives

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