Water sorption and mechanical behaviour of cosmetic direct restorative materials in artificial saliva

Musanje, L.; Shu, Man; Darvell, B.W.

doi:10.1016/s0109-5641(00)00097-x

Cited by 98 publications

(68 citation statements)

References 30 publications

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“…In particular, water solubility would decrease the elastic modulus and resistance to wear or flexion 24,25) , which may slowly degrade the stability of these resin restorations [26][27][28][29][30][31][32][33] .…”

Section: Discussionmentioning

confidence: 99%

Effect of Water on Bonding of One-bottle Self-etching Adhesives

et al. 2008

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This study evaluated the effect of water on dentin substrate bonding of one-bottle self-etching adhesives. Dentin substrates were divided into two groups: wet and dry dentin. Wet dentin is the normal substrate for bond testing whereas dry dentin was dehydrated in a desiccator for 24 hours. Bonded dehydrated teeth were then divided into two subgroups: stored in water or in desiccator for 24 hours. Microtensile bond strength of resin to dentin was measured using three one-bottle self-etching adhesives. In addition, nanoleakage evaluation was performed through the analyses of SEM and TEM micrographs. The bond strength of dry-dentin group was significantly greater than that of wet-dentin. Further, the amount of nanoleakage within the adhesive interface of dry-dentin group was less than that of wet-dentin. Results showed that bond strength and nanoleakage formation depended on the bonding substrate (wet versus dry dentin) before bonding. One-bottle self-etching adhesives might suck the water from dentinal tubules during bonding by osmosis, leading to nanoleakage formation and thus a decline in bond strength.

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Section: Discussionmentioning

confidence: 99%

Effect of Water on Bonding of One-bottle Self-etching Adhesives

et al. 2008

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“…Acid-base reaction occurs gradually after light polymerization when the dehydrated acid is activated through water sorption. Water sorption needed for the acid-base reaction to take place has been shown to compromise the aesthetics and physical properties of compomers 2) . Pre-reacted glass ionomer filled composites (Giomer) are the latest category of hybrid tooth colored restorative materials.…”

Section: Introductionmentioning

confidence: 99%

Effect of staining solutions on color of pre-reacted glass-ionomer containing composites

et al. 2012

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This study investigated the color stability of pre-reacted glass-ionomer containing composite restoratives. The materials evaluated included one regular (Beautifil II [BF]), two flowable (Beautifil Flow [F02, F10]) and two recently introduced flowable "plus" (Beautifil Flow Plus [F00, F03]) pre-reacted glass-ionomer containing composite restoratives. Twelve specimens of each material (A3 shade) were fabricated, allowed to set for 24 h at 37°C and randomly divided into 4 groups. After baseline spectrophotometric (Crystaleye, Olympus) color measurements, specimens were immersed in water, cola, red wine and coffee for 7 days. Post-immersion color measurements were taken and color changes (ΔE) were computed accordingly. Statistical analysis was done using ANOVA and post-hoc Scheffe's test (p<0.05). For pre-reacted glass-ionomer containing composites, color changes after immersion in coffee and red wine were significantly greater than in cola and water. Differences in ΔE values between materials were solution dependent. The least color change was generally observed with the flowable "plus" pre-reacted glass-ionomer containing composites.

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“…Dental sealants need to have enough mechanical properties to withstand physiological mastication but preventive pit and fissure sealing does not seem to require materials with high mechanical properties [13]. As a conclusion to this study, all the materials seem adequate to the clinical indication and can be used according to each patient situation.…”

Section: Discussionmentioning

confidence: 64%

“…Previous study analysed the sensitivity of commercially available glass ionomer cement, compomer and filled resin based composite to water and observed that compomers are more resistant than glass ionomer cements at the first stages of tested conditions [13]. Other research [14] tested the flexural strength of traditional resin-based pit and fissure sealants and flowable resin composites,…”

Section: Discussionmentioning

confidence: 99%

Characterization of Mechanical Properties, Fluoride Release and Colour Stability of Dental Sealants

Munhoz

Nunes

Seabra

et al. 2016

Pesqui. bras. odontopediatria clín. integr.

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Objective: To compare the mechanical properties, fluoride release, colour stability and spreading characteristics of glass ionomer cement (GIC), compomer (CO), chemical (CR) and light-cured resin based (LR) fissure sealants. Material and Methods: Cylinders were prepared to determine mechanical properties by diametral tensile strength tests (stored for 24h in distilled water at 37°C) and fluoride release (24 hours, 3, 7 and 15 days; deionised water). Disk shaped specimens were prepared to determine colour stability (1 week in pigmenting solution; 37°C; CIE L*a*b*; ΔE). A simplified method of a spreading test was proposed to predict viscosity characteristics of the tested materials. Data were analysed using one-way ANOVA followed by T-test (p<0.05). Results: Results showed differences between materials regarding all tested properties. CO was statistically more resistant than the other materials (p<0.05), but no difference was observed between CR and LR. The fluoride release of GICs was significantly higher than the other materials (p<0.05). CO showed lower ΔE than the other materials in the following order: CO

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Water sorption and mechanical behaviour of cosmetic direct restorative materials in artificial saliva

Cited by 98 publications

References 30 publications

Effect of Water on Bonding of One-bottle Self-etching Adhesives

Effect of Water on Bonding of One-bottle Self-etching Adhesives

Effect of staining solutions on color of pre-reacted glass-ionomer containing composites

Characterization of Mechanical Properties, Fluoride Release and Colour Stability of Dental Sealants

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