| GYNAECOLOGY AND OBSTETRICS IMAGING |
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| Year : 2005 | Volume
: 8
| Issue : 2 | Page : 15-23 |
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A spectrophotometric evaluation of effectiveness of surface protection for resin modified glass ionomer cement an in vitro study
Vishwas M Sangappa, NM Dhanya Kumar, Vasundhara Shivanna
College of Dental Sciences, Davangere, India
Correspondence Address:
Vishwas M Sangappa
College of Dental Sciences, Davangere
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0972-0707.42600
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Water plays an important role in the setting reaction and cement structure of glass ionomer cement. Both hydration and dehydration compromises the integrity of the material.
Antonucci (1988) and Mithra (1989) developed resin modified glass ionomer cements (RMGIC). These were developed to overcome the problems of low initial mechanical strength and moisture sensitivity associated with conventional glass ionomer cements while preserving their clinical advantages.
Investigations oil these materials have shown that addition of resin has not significantly reduced the susceptibility of glass ionomer materials to hydration and dehydration problems.
Surface protection soon after the restoration is placed in the oral cavity preserved the water balance in the system and also filled small surface voids and defects preserving the restoration color by reducing the uptake of stains.
This study was to spectrophotometrically evaluate the best surface protectant for RMGIC among Nail varnish, Fuji varnish, Fuji coat LC and Helio bond. |
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