Long-term surface micro-hardness of resin-modified glass ionomers.
@article{Kanchanavasita1998LongtermSM, title={Long-term surface micro-hardness of resin-modified glass ionomers.}, author={W. Kanchanavasita and H. M. Anstice and Gavin J Pearson}, journal={Journal of dentistry}, year={1998}, volume={26 8}, pages={ 707-12 } }
59 Citations
Surface hardness change of restorative filling materials stored in saliva.
- Medicine, Materials ScienceDental materials : official publication of the Academy of Dental Materials
- 2001
Hydrolytic degradation and cracks in resin-modified glass-ionomer cements.
- Materials ScienceJournal of biomedical materials research. Part B, Applied biomaterials
- 2004
It was concluded that the prevalent mechanism of long-term hydrolytic degradation was based on the slow formation of cracks, whereas only in the early stage of storage did absorption occur quickly in accordance with the Fickian diffusion.
Effect of light curing on micro-hardness of resin-modified versus conventional glass- ionomer restoration as a function of depth and time
- Materials Science, Medicine
- 2013
Inclusion of resins in the RMGI does not improve the surface microhardness of these materials, and the polymerization and acid/ base reactions produced in RMGI did not insure adequate polymerization especially in thicker layers.
An in vitro study on the maturation of conventional glass ionomer cements and their interface to dentin.
- Materials Science, MedicineActa biomaterialia
- 2013
Influence on the Hardness of Resin Modified Glass Ionomer Cements following Exposure to High and Low Fluoride Containing Toothpastes
- Medicine, Materials Science
- 2014
RMGICs used in this study proved to be materials which exhibit increase in hardness after exposure to protocols practiced in the authors' research for its recharge, which are fluoride releasing restorative materials.
Effects of different solutions on the surface hardness of composite resin materials.
- Materials Science, MedicineDental materials journal
- 2009
In this study, the surface hardness of five light-cured composite resins were evaluated and it was found that the hardness values of composite materials were statistically different in different immersion solutions.
An FTIR study of the effects of artificial saliva on the physical characteristics of the glass ionomer cements used for art.
- Medicine, Materials ScienceDental materials : official publication of the Academy of Dental Materials
- 2005
Hardness of three resin-modified glass-ionomer restorative materials as a function of depth and time.
- Medicine, Materials ScienceJournal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]
- 2009
Although certain RMGI materials demonstrate a potential for post light-activation chemically initiated resin polymerization and/or polyalkenoate acid/base reaction, these reactions may not be sufficient to ensure that the material is adequately polymerized for long-term success.
Commentary. Hardness of three resin-modified glass-ionomer restorative materials as a function of depth and time.
- Medicine, Materials Science
- 2009
Although certain RMGI materials demonstrate a potential for post light-activation chemically initiated resin polymerization and/or polyalkenoate acid/base reaction, these reactions may not be sufficient to ensure that the material is adequately polymerized for long-term success.
Influence of 0.05% sodium fluoride solutions on microhardness of resin-modified glass ionomer cements
- Materials Science, MedicineJournal of materials science. Materials in medicine
- 2006
It may be concluded that fluoride-containing solutions influenced the tested characteristics of materials, mainly of Vitremer.
References
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It is concluded that glass-ionomer cements with composition similar to those evaluated here are not acceptable for posterior occlusal application, but some compositional changes may enhance their performance in stress-bearing applications.
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For some hybrid ionomers (e.g., Photac-Fil), light curing is a more essential step than for others to obtain adequate hardness values, and the use or nonuse of light curing was also significant.
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Considering the improved fracture strength and surface hardness, it was concluded that the resin-modified GICs present an interesting material for further development.
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The hybrid resin composite exhibited the lowest resistance to wear caused by brushing and the strength properties of the tested resin-modified glass-ionomer materials and the polyacid-modified resin composite materials were inferior to those of the hybrids.
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