|
KMID : 1004520110270020161
|
|
Journal of Dental Rehabilitation and Applied Science
2011 Volume.27 No. 2 p.161 ~ p.174
|
|
|
Effect of Ethanol Addition on Efficacy of Dental Adhesive
|
|
Min Jeong-Bum
Kim Hee-Jung
|
|
|
Abstract
|
|
|
|
The purpose of this study was to evaluate the effect of ethanol addition on efficacy of two-step total-etch adhesive under over-wet condition by measurement of remaining volatile part (RVP), microtensile bond strength (), and degree of conversion (DC). Two-step total-etch adhesive, Optibond Solo Plus (Kerr, Orange, USA), was used. Experimental groups were divided into 8 groups: Group 1 (only 10 adhesive), Group 2 (mixture of 3 distilled water and 10 adhesive), From Group 3 to Group 8 (mixture of 3 distilled water, 10 adhesive, and ethanol added in 1 increment from 1 to 6 ). The mixtures were placed on slide glass and evaporated for 10 s, 30 s, and 60 s by air-drying. The weight of RVP was measured by precision weight. Same procedures were performed for test and measurement of DC. The condition of mixed solution was observed under light microscope. For RVP weight, the weights of experimental groups except for group 1 decreased with the increase of air-drying time (p<0.05). The DC increased with the increase of air-drying time in only group 5 and 6 (p<0.05). The increased with the increase of air-drying time in group only 5, 6, and 7 (p<0.05). The phase separation was examined and water blisters were diminished with the increase of air-drying time in group 5, 6, 7, and 8. Within the limits of this study, ethanol additionally applied to adhesive decreased RVP and increased DC and under over-wet condition. It was shown that the addition of ethanol to two-step total-etch adhesive under over-wet condition would remove water and increase the efficacy of adhesive.
|
|
|
KEYWORD
|
|
|
over-wet phenomenon, degree of conversion, ethanol addition
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|