Ion release by resin-modified glass-ionomer cements into water and lactic acid solutions

Czarnecka, Beata; Nicholson, John W.

doi:10.1016/j.jdent.2005.08.007

Cited by 58 publications

(42 citation statements)

References 13 publications

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“…In the present study, pH measurements indicated that S-PRG filler altered the pH values of both distilled water and lactic acid solution closer to neutral. These results thus showed that S-PRG filler, like the conventional glass ionomer cements, had a modulation effect on acidic solutions 9,10) . When the solution: S-PRG filler ratio was the same, the pH values of both types of solutions became similar at pH 7.8, regardless of their different pH levels before mixing.…”

Section: Discussionmentioning

confidence: 69%

“…In S-PRG fillers, Na is present in the composition and has been shown to be released with Al 21) . The release of Al is associated with enhanced F release, leading to increases in the formation of aluminofluoro complexes 10) . Although only a minor amount of Na was present in the S-PRG filler when compared with the major amounts of F and Si, the amount of Na released was much higher than the other ions.…”

Section: Discussionmentioning

confidence: 99%

“…On the effect of medium pH on ion release behavior, acidic conditions are known to enhance the release of all ions. Nonetheless, it must be pointed out that this enhanced release in acids is not uniform, but occurs to different extents for each ion 10) . Interestingly, despite these differences, ion release tends to lead to fairly uniform shifts in the pH of the extraction medium towards neutral 11) .…”

Section: Introductionmentioning

confidence: 99%

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Detection of ions released from S-PRG fillers and their modulation effect

et al. 2010

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The purpose of this study was to analyze the ions released from a surface pre-reacted glass ionomer (S-PRG) filler in distilled water or lactic acid solution. S-PRG filler was mixed with either solution at 1000:1, 100:1, 10:1, and 1:1 ratios by weight. By means of inductively coupled plasma atomic emission spectroscopy and a fluoride electrode, elements released from S-PRG filler were identified to be Al, B, Na, Si, Sr, and F. To investigate the effect of solution pH on ion release, the pH values of the solutions before mixing and after 24 hours' mixing with S-PRG were measured. After 24 hours' mixing, the pH values of solutions at all ratios became more neutral or weakly alkaline regardless of their initial pH levels before mixing. In conclusion, results showed that S-PRG filler released several types of ions, and that ion release was influenced by the mixing ratio of the solution rather than the initial pH of the solution.

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Section: Discussionmentioning

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Detection of ions released from S-PRG fillers and their modulation effect

et al. 2010

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“…Cattani-Lorente et al reported that Na is present in the S-PRG filler composition and is released with Al 30) . The release of Al is associated with enhanced F release, leading to increases in the formation of aluminofluoro complexes 31) . In this study, on day 1, considerable amounts of fluoride and Na were released from the DE.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the ion-releasing and recharging abilities of a resin-based fissure sealant containing S-PRG filler

2011

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We evaluated the concentration of fluoride release at the initial stage and after recharging the fluoride from a resin-based sealant containing surface reaction-type pre-reacted glass-ionomer (S-PRG) filler and conventional resin-based sealants. The concentration of other ions released from the sealants in the surrounding distilled water was also examined. At the initial stage, fluoride was released from all sealants. For the sealant containing S-PRG filler, a significantly higher amount of Sr and B ions was detected relative to those from other sealants. After sealant samples were soaked in a sodium fluoride solution, a significant amount of fluoride and other ions was released from the sealant containing S-PRG filler. These findings suggest that sealants containing S-PRG filler enhance the enamel demineralization-inhibiting effect and the remineralization-promoting effect for long-term dental care.

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“…Secondly, pH modulation by the S-PRG filler in acidic conditions may also contribute to its protective effects. It has been reported that S-PRG fillers, like other fluoridereleasing materials, could neutralize the storage media 20,[42][43][44] . It is possible that the acidity of the buffer has been neutralized by the S-PRG fillers by the time it reaches dentin surface and thus has vastly diminished demineralization potential.…”

mentioning

confidence: 99%

Effects of a coating resin containing S-PRG filler to prevent demineralization of root surfaces

Imazato

Chen

et al. 2012

Dent. Mater. J.

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The purpose of this study was to evaluate the ability of a coating material containing the surface pre-reacted glass-ionomer (S-PRG) filler to protect the root from demineralization in vitro. The proprietary coating resin containing the S-PRG filler (PRG Barrier Coat) was applied to human root dentin and immersed in acid buffer at pH 4.5 for 3 d. Demineralization was evaluated by micro-CT scanning and the dentin-material interface observed by scanning electron microscopy. The ability of the coating resin to modify acid production by Streptococcus mutans was investigated by monitoring pH using an ion-sensitive field-effect transistor pH electrode. Application of PRG Barrier Coat produced a coating layer with the thickness of approximately 200 µm and completely inhibited demineralization. The bacteria-induced pH fall at the material surface was significantly inhibited. We conclude that S-PRG fillercontaining coating resin may be an effective material for protecting exposed root from both chemical and biological challenges. Keywords: Resin coating, Root caries, Demineralization, S-PRGThe second and third authors contributed equally to this work.

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Ion release by resin-modified glass-ionomer cements into water and lactic acid solutions

Cited by 58 publications

References 13 publications

Detection of ions released from S-PRG fillers and their modulation effect

Detection of ions released from S-PRG fillers and their modulation effect

Evaluation of the ion-releasing and recharging abilities of a resin-based fissure sealant containing S-PRG filler

Effects of a coating resin containing S-PRG filler to prevent demineralization of root surfaces

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