Akademik Veri Yönetim Sistemi
24. BASS Congress, Tirane, Arnavutluk, 9 - 11 Mayıs 2019, ss.168
Background: The luting cement around the margins of the indirect
restorations is in contact with oral and sulcular fluids. Water sorption
of the luting cements can also lead to material deterioration and
discoloration. The aim of this study is to evaluate the water sorption
and the solubility of three different resin cements.
Methods and materials: A totally 30 disc shaped specimens
(n:10) were prepared from one light-cure (Variolink Esthetic LC,
Ivoclar Vivadent) and two dual-cure resin cements (Variolink
Esthetic DC, Ivoclar Vivadent) one of which is self-adhesive (Rely X
U 200, 3M ESPE). Specimens from each group were kept in a silica
gel containing desiccator and weighed on an analytical balance
(m1). Then the specimens were stored in closed flasks containing 2
ml distilled water in an incubator at 37oC for seven days. After the
storage period, the specimens were weighed again to determine the
value of m2, then they were placed into the desiccator to eliminate
the absorbed water. The specimens were weighed daily until
reaching a constant mass (m3). Percentages of the water sorption
and solubility were calculated. Data was analysed statistically with
Kruskal-Wallis One Way Analysis of Variance.
Results: Water sorption (%) (p = 0,07) and solubility values
(%) (p = 0,28) of the three cement groups were not statistically
significant.
Conclusion: Curing type or adhesive properties of the cements
used for the study, did not differed in terms of water sorption or
solubility.