| ORIGINAL ARTICLE |
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| Year : 2013 | Volume
: 16
| Issue : 5 | Page : 418-422 |
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Effects of solvent drying time on mass change of three adhesives
Shila Emamieh1, Alireza Sadr2, Amir Ghasemi1, Hassan Torabzadeh3, Vegharedin Akhavanzanjani1, Junji Tagami2
1 Department of Operative Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2 Department of Cariology and Operative Dentistry, Global Center of Excellence, International Research Center for Molecular Science in Tooth and Bone Diseases, Tokyo Medical and Dental University, Tokyo, Japan
3 Iranian Center for Endodontic Research, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Correspondence Address:
Shila Emamieh
Department of Operative Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran
Iran
 Source of Support: This study was supported by the Global
COE program IRCMSTBD at Tokyo Medical and Dental
University, Japan and close cooperation of the Dental Research
Center of Shahid Beheshti University of Medical Sciences,
Iran. Clearfi l S3 Bond was donated for research by Kuraray
Medical, Japan, Conflict of Interest: None  | Check |
DOI: 10.4103/0972-0707.117505
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Aim: Adhesives may change their mass due to water sorption or dilution of components after curing. The aim of this study was to evaluate the influence of air-drying time and water storage on mass changes (MC) of three adhesives; Adper Single Bond2 (ASB), One-step plus (OSP), Clearfil S 3 Bond (CSB).
Materials and Methods: Rectangular-shape samples from each adhesive were prepared and cured for 120 s with a halogen light curing unit. Prior to curing, their solvent was evaporated by means of three different procedures depending on the passive air-drying time (i.e., no air drying, equal to active air drying, complete evaporation after 3 h). Each group was further divided into two subgroups based on the time of water storage (1-day, 7-days), prior to measurement of MC (n = 10). The data were analyzed using a three-way ANOVA.
Results: Adhesives showed different patterns of MC in relation to air drying and water storage; (P < 0.05). In OSP and CSB with increasing water storage and air drying, the MC increased significantly (P < 0.01).
Conclusion: The highest MC in the etch-and-rinse adhesives was observed when the adhesive was not dried, while in the self-etch adhesive the highest changes were observed when the adhesive was completely dried. |
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