Effect of high-powered LED polymerization on the shear bond strength of a light-polymerized resin luting agent to ceramic and dentin

Nalçaci, Adil; Kucukesmen, Cenker; Uludağ, Bülent

doi:10.1016/j.prosdent.2005.05.001

Cited by 24 publications

(38 citation statements)

References 23 publications

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“…This is the main reason for the failure of repair materials (Mohammad et al, 2006). High-light intensity can improve the depth of curing and degree of conversion of the resin monomer to enhance mechanical properties of the composite resin (Nalcaci et al, 2005;Alto et al, 2006;Filho et al, 2008). Since curing speed is proportional to the square root of light intensity (Visvanathan et al, 2007), the curing speed of the high-light mode is faster and this can produce a larger polymerization shrinkage and internal stress within the bonding interface.…”

Section: Discussionmentioning

confidence: 99%

Effects of light curing modes and ethanol-wet bonding on dentin bonding properties

Wang

Hong

et al. 2016

J. Zhejiang Univ. Sci. B

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Abstract:Objective: This study explored the effects of different light curing modes and ethanol-wet bonding on dentin bonding strength and durability. Methods: A total of 54 molars were randomly divided into three groups: Single Bond 2, Gluma Comfort Bond, and N-Bond. Based on the three light-curing modes and presence or absence of ethanol pretreatment, the samples were assigned to six subgroups: high-light mode, ethanol pretreatment+high-light mode, soft-start mode, ethanol pretreatment+soft-start mode, standard mode, and ethanol pretreatment+standard mode. All samples were bonded with resin based on the experimental groups. After 24 h and 6 months of water storage, a universal testing machine was used to measure microtensile bond strength. Scanning electron microscopy (SEM) was applied to observe mixed layer morphology. Results: The 24-h and 6-month microtensile bond strengths of the ethanol pretreatment groups were significantly higher than those of the non-ethanol pretreatment groups at the same light modes (P<0.05). With or without ethanol pretreatment, the microtensile bond strengths of the high-light modes were significantly lower than those of the soft-start modes and standard modes (P<0.05). The microtensile bond strengths of samples from the 6-month water storage group significantly decreased compared with those of samples from the 24-h water storage group (P<0.05). The soft-start groups and standard groups formed better mixed layers than the high-light mode groups, whereas the ethanol pretreatment groups formed more uniform mixed layers than those without ethanol pretreatment. Conclusions: Ethanol-wet bonding technique, soft-start, and standard modes could improve dentin bonding properties.

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Section: Discussionmentioning

confidence: 99%

Effects of light curing modes and ethanol-wet bonding on dentin bonding properties

Wang

Hong

et al. 2016

J. Zhejiang Univ. Sci. B

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“…Regarding resin composites, several studies have demonstrated that LED devices are effective. 23,24 On the other hand, as regards resin cements, few studies [25][26][27] have only reported no significant differences using shear bond strength testing when QTH devices were compared to high-intensity LED light sources to polymerize a dual-cure resin cement through a 3-mm-thick ceramic restoration. It has been claimed that LED light units with a relatively low power output require a higher exposure time to perform as well as QTH lights.…”

Section: Discussionmentioning

confidence: 99%

Influence of different light curing units on the bond strength of indirect resin composite restorations

Camilotti¹,

Grullón²,

Mendonça

et al. 2008

Braz. oral res.

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The aim of this study was to evaluate the influence of different light sources on the bond strength of indirect resin composite restorations cemented with a dual-cure resin cement. The superficial dentin of human third molars was exposed and acid-etched and an adhesive system was applied (Single Bond 2). Four-mm-thick indirect resin composite restorations (Gradia) were fabricated and cemented using a dual-cure resin cement (Rely X). Four light sources were used to polymerize the cement: QTH -Optilux 401; LED1 -L.E.Demetron 1; LED2 -Optilight CL; and LED3 -Ultralume 5. The teeth were stored for 24 h and then sectioned, yielding stick-shaped specimens for each group with a bonded area of 1.0 mm². The specimens were then tested in a universal testing machine, at a crosshead speed of 1 mm/min. Data were analyzed using ANOVA. Bond strength mean values were: QTH: 22.5 (± 8.4);

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“…The tooth surfaces were carefully washed and gently dried in preparation for application of the bonding agent (Single Bond, 3M Dental Products). [21][22] The porcelain disks were luted with one of two different shades of dual-polymerizing resin composite cement (Rely X ARC, 3M ESPE). Vita A 1 shade was used for the buccal faces (Group A 1 ) and Vita A 3 shade was used for the lingual faces (Group A 3 ) of the teeth for cementation.…”

Section: Methodsmentioning

confidence: 99%

Influence of Cement Shade and Water Storage on the Final Color of Leucite-reinforced Ceramics

Karaağaçlioğlu

Yılmaz²

2008

Operative Dentistry

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Operative Dentistry, 2008, 33-4, 386-391 L Karaagaclioglu • B Yilmaz Clinical RelevanceLuting cement under 0.8 mm thick leucite-reinforced ceramic changed the final color of the ceramic and could be seen by the human eye. Therefore, clinicians may prefer to use try-in pastes or polymerized luting composite shade guides to compensate for the change in color of definitive restorations, such as laminate veneers. The final color differences between ceramics luted with cements in A1 and A3 shades were not clinically perceivable at each measurement. Within the limitations of this study, changing the color of an IPS Empress laminate veneer restoration via the shade of the cement seems not to be a preferred method.

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Effect of high-powered LED polymerization on the shear bond strength of a light-polymerized resin luting agent to ceramic and dentin

Cited by 24 publications

References 23 publications

Effects of light curing modes and ethanol-wet bonding on dentin bonding properties

Effects of light curing modes and ethanol-wet bonding on dentin bonding properties

Influence of different light curing units on the bond strength of indirect resin composite restorations

Influence of Cement Shade and Water Storage on the Final Color of Leucite-reinforced Ceramics

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