Paper Information

Journal:   JOURNAL OF ISLAMIC DENTAL ASSOCIATION OF IRAN (MAJALLAH-I-DANDANPIZISHKI)   FALL 2013 , Volume 25 , Number 3 (88); Page(s) 243 To 249.
 
Paper: 

IN- VITRO EVALUATION OF WATER SORPTION AND SOLUBILITY OF G-CEM AND FUJICEM IN WATER AND ACID

 
 
Author(s):  HESHMAT H., BANAVA S., ZARANDI P., FARAJI F.*
 
* SCHOOL OF DENTISTRY, ISLAMIC AZAD UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Background and Aim: Solubility is among the negative characteristics of dental materials leading to structural degradation of cements and decreased longevity of restorations. The present study sought to assess the water sorption and solubility of FujiCem resin-modified glass ionomer (RMGI) and G-Cem self-adhesive resin cement in water and acid.
Materials and Methods: In this experimental study, 5 discs were fabricated from each understudy cement for solubility testing in lactic acid and 5 other disc-shaped specimens were made for evaluation of water sorption and solubility. Specimens were immersed in distilled water for 7 days and immediately weighed afterwards (M2). Discs were then transferred to a desiccator again to reach a constant weight of M3. Water sorption and solubility were calculated using the respective equations. For acid solubility testing, specimens were immersed in lactic acid for 24h. Independent t-test was applied for statistical analysis of results.
Results: Solubility in distilled water was 0.0000139±0.0001
mg/m3 for FujiCem and 0.0000016± 0.000005 mg/m3 for G- Cem (P=0.480). Water sorption was O.0000197±O.000234 for FujiCem and 0.0000025±0.00004 for G-Cem (P<0.001). Acid solubility was O.0059414±O.OO 16 for FujiCem and 0.0039115±0.0016 mg/m3 for G-Cem (P=0.348).
Conclusion: The two understudy cements had no significant difference in water or acid solubility but FujiCem RMGI showed greater water sorption than G-Cem self-adhesive resin cement.

 
Keyword(s): ACID SOLUBILITY, WATER SOLUBILITY, WATER SORPTION, RESIN MODIFIED GLASS IONOMER, RESIN CEMENT
 
References: 
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