Abstract
This study evaluated protocols to eliminate acetone from dental adhesives and their effect on the kinetic of water sorption and percent of conversion of these adhesives. Experimental methacrylate-based adhesives with increasing hydrophilicity (R2, R3, R5) were used as reference materials. Primer-like solutions were prepared by addition of 50 wt% acetone. Acetone elimination was measured gravimetrically before and after: a spontaneous evaporation, an application of air-drying at room temperature or application of 40°C air-drying. Protocols were performed from 15 to 60 s. Specimens of adhesive/ acetone mixtures were photo-activated and tested for degree of conversion, water sorption and solubility. Data were analyzed by ANOVA and Bonferroni's tests (a = 0.05). Complete acetone elimination was never achieved, but it was significantly greater after the 40°C airdrying application. Higher acetone elimination was observed for the least hydrophilic adhesive. Longer periods for acetone evaporation and heated air-stream can optimize polymerization and reduce the water sorption/solubility of adhesive system models.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 629-638 |
| Number of pages | 10 |
| Journal | Journal of Materials Science: Materials in Medicine |
| Volume | 23 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 1 2012 |
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ASJC Scopus subject areas
- Biophysics
- Bioengineering
- Biomaterials
- Biomedical Engineering
Cite this
Effect of air-drying on the solvent evaporation, degree of conversion and water sorption/solubility of dental adhesive models. / Bail, M.; Malacarne-Zanon, J.; Silva, S. M.A.; Anauate-Netto, A.; Nascimento, F. D.; Amore, R.; Lewgoy, H.; Pashley, David Henry; Carrilho, M. R.
In: Journal of Materials Science: Materials in Medicine, Vol. 23, No. 3, 01.03.2012, p. 629-638.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of air-drying on the solvent evaporation, degree of conversion and water sorption/solubility of dental adhesive models
AU - Bail, M.
AU - Malacarne-Zanon, J.
AU - Silva, S. M.A.
AU - Anauate-Netto, A.
AU - Nascimento, F. D.
AU - Amore, R.
AU - Lewgoy, H.
AU - Pashley, David Henry
AU - Carrilho, M. R.
PY - 2012/3/1
Y1 - 2012/3/1
N2 - This study evaluated protocols to eliminate acetone from dental adhesives and their effect on the kinetic of water sorption and percent of conversion of these adhesives. Experimental methacrylate-based adhesives with increasing hydrophilicity (R2, R3, R5) were used as reference materials. Primer-like solutions were prepared by addition of 50 wt% acetone. Acetone elimination was measured gravimetrically before and after: a spontaneous evaporation, an application of air-drying at room temperature or application of 40°C air-drying. Protocols were performed from 15 to 60 s. Specimens of adhesive/ acetone mixtures were photo-activated and tested for degree of conversion, water sorption and solubility. Data were analyzed by ANOVA and Bonferroni's tests (a = 0.05). Complete acetone elimination was never achieved, but it was significantly greater after the 40°C airdrying application. Higher acetone elimination was observed for the least hydrophilic adhesive. Longer periods for acetone evaporation and heated air-stream can optimize polymerization and reduce the water sorption/solubility of adhesive system models.
AB - This study evaluated protocols to eliminate acetone from dental adhesives and their effect on the kinetic of water sorption and percent of conversion of these adhesives. Experimental methacrylate-based adhesives with increasing hydrophilicity (R2, R3, R5) were used as reference materials. Primer-like solutions were prepared by addition of 50 wt% acetone. Acetone elimination was measured gravimetrically before and after: a spontaneous evaporation, an application of air-drying at room temperature or application of 40°C air-drying. Protocols were performed from 15 to 60 s. Specimens of adhesive/ acetone mixtures were photo-activated and tested for degree of conversion, water sorption and solubility. Data were analyzed by ANOVA and Bonferroni's tests (a = 0.05). Complete acetone elimination was never achieved, but it was significantly greater after the 40°C airdrying application. Higher acetone elimination was observed for the least hydrophilic adhesive. Longer periods for acetone evaporation and heated air-stream can optimize polymerization and reduce the water sorption/solubility of adhesive system models.
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UR - http://www.scopus.com/inward/citedby.url?scp=84862738573&partnerID=8YFLogxK
U2 - 10.1007/s10856-011-4541-y
DO - 10.1007/s10856-011-4541-y
M3 - Article
C2 - 22210310
AN - SCOPUS:84862738573
VL - 23
SP - 629
EP - 638
JO - Journal of Materials Science: Materials in Medicine
JF - Journal of Materials Science: Materials in Medicine
SN - 0957-4530
IS - 3
ER -