1. Profilometric and SEM analyses of composite surfaces after excess cement removal
- Author
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Jevremović Danimir P., Ajduković Zorica R., Stanković Saša D., and Radosavljević Radivoje D.
- Subjects
profilometric analysis ,SEM analysis ,composite cement ,dental materials ,Chemical technology ,TP1-1185 - Abstract
Composite cements are widely used in dentistry, due to their positive characteristics (bond strength, color, low solubility etc.). However, removal of the cement presents one of the drawbacks of their use, since incomplete removal might cause bacterial adhesion, gingival irritation and subsequent inflammation. The aim of this study was to investigate surface characteristics of the composite cements after different ways of excess removal, by means of profilometric and SEM analysis. Thirty leucite reinforced ceramic specimens were divided into three groups, based on the manner of excess cement removal: Group 1 (polished): excess was fully polymerized for 40 s, then removed; Group 2 (cleaned): excess was removed with a cotton roll, after which cement was fully polymerized for 40 s; Group 3 (pre-polymerized): excess was light cured for 5 s, after which cement excess was broken with an instrument and then fully polymerized for 40 s. Surface roughness was measured using a surface profilometer. Subsequently, specimens were inspected by a scanning electron microscope. The data were statistically analyzed. The examination of variants of average values proved the statistically significant difference in the height of average values per group, p
- Published
- 2012
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