Influence of curing protocols on water sorption and solubility of a self-adhesive resin-cement
Braz. j. oral sci
;
15(2): 144-150, Apr.-June 2016. ilus
Article
in English
| LILACS, BBO
| ID: biblio-848251
ABSTRACT
Aim:
To evaluate the effect of different activation protocols on the polymerization of a self-adhesive dual cured resin-based cement.Methods:
Thirty disc-shaped specimens were prepared with the resin cement RelyX U200 (3M ESPE) and divided according to three protocols immediate light-activation for 40 s, delayed light-activation (10 min after manipulation, for 40 s) or self-curing without light-activation. The specimens were desiccated, kept in water at 37 °C for 7 days and desiccated again to calculate water sorption, solubility and mass variation. Data were analyzed by Shapiro-Wilk Test and Wilcoxon tests (α=0.05). Images after the specimens' final desiccation were also made.Results:
The Wilcoxon test revealed a significant difference for sorption and mass variation (p<0.05) and the highest value was observed in self-curing or chemical activation group (CA), followed by delayed light-activation (DL) and immediate light-activation (IL). Besides the water sorption parameters, there were also microvoids on the discs from the delayed and no light-activation groups.Conclusions:
The light-activation immediately after manipulation is recommended for the evaluated resin cement (Au)
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Solubility
/
Guidelines as Topic
/
Resin Cements
/
Self-Curing of Dental Resins
/
Light-Curing of Dental Adhesives
/
Polymerization
Type of study:
Practice guideline
Language:
English
Journal:
Braz. j. oral sci
Journal subject:
Dentistry
Year:
2016
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Faculdades Pequeno Príncipe/BR
/
Universidade Positivo/BR
/
Universidade de São Paulo/BR
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