TY - JOUR
T1 - Comparison of microleakage from gingival wall restorations with and without sonically activated bulk-fill composite resins and incrementally layered composite resin
T2 - 2nd Physics and Technologies in Medicine and Dentistry Symposium, PTMDS 2018
AU - Sihombing, M. S.R.
AU - Nursasongko, B.
AU - Djauharie, N.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2018/9/7
Y1 - 2018/9/7
N2 - One of the factors that determine the success of proximal composite restorations is a good marginal adaptation at the interface area. During polymerization, composite resin will undergo contraction which may cause gap formation between the wall cavity and restoration. The gap can cause microleakage and provide a passage for bacteria, fluid, molecules, and ions. The purpose of this study was to analyze the microleakage from gingival wall restorations with and without sonically activated bulk-fill nanohybrid composite resins and incrementally layered nanohybrid composite resins. Standardized Class II cavities were prepared on 30 extracted human upper and lower human teeth and were randomly assigned to three groups: filled with sonically activated bulk-fill composite resin, filled without sonically activate resin, and filled incrementally with resin. The specimens were stored in distilled water for 24 hours, were subjected to thermocycling, and were followed by immersion in 1% methylene blue dye for 24 hours. The teeth were sectioned longitudinally, were evaluated for microleakage under a stereomicroscope at 25x magnification, and were scored from 0-3. The Kolmogorov-Smirnov test was used to perform the statistical analysis. None of the techniques was capable of eliminating microleakage from gingival wall cavity preparations. There were no statistically significant leakage differences among the three groups.
AB - One of the factors that determine the success of proximal composite restorations is a good marginal adaptation at the interface area. During polymerization, composite resin will undergo contraction which may cause gap formation between the wall cavity and restoration. The gap can cause microleakage and provide a passage for bacteria, fluid, molecules, and ions. The purpose of this study was to analyze the microleakage from gingival wall restorations with and without sonically activated bulk-fill nanohybrid composite resins and incrementally layered nanohybrid composite resins. Standardized Class II cavities were prepared on 30 extracted human upper and lower human teeth and were randomly assigned to three groups: filled with sonically activated bulk-fill composite resin, filled without sonically activate resin, and filled incrementally with resin. The specimens were stored in distilled water for 24 hours, were subjected to thermocycling, and were followed by immersion in 1% methylene blue dye for 24 hours. The teeth were sectioned longitudinally, were evaluated for microleakage under a stereomicroscope at 25x magnification, and were scored from 0-3. The Kolmogorov-Smirnov test was used to perform the statistical analysis. None of the techniques was capable of eliminating microleakage from gingival wall cavity preparations. There were no statistically significant leakage differences among the three groups.
UR - http://www.scopus.com/inward/record.url?scp=85054496790&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1073/6/062019
DO - 10.1088/1742-6596/1073/6/062019
M3 - Conference article
AN - SCOPUS:85054496790
SN - 1742-6588
VL - 1073
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 6
M1 - 062019
Y2 - 18 July 2018 through 18 July 2018
ER -