Adaptability of thermo-viscous versus sonicfill-activated bulk fill composite resin restorations
Enas Mostafa Ameen Kandel, Wedad M. Etman, Thuraia M. Geniad- General Earth and Planetary Sciences
- Water Science and Technology
- Geography, Planning and Development
Purpose
To
Materials and methods
Twenty non-carious human maxillary premolar teeth were selected. Class I cavities were prepared with dimensions of 4 mm mesio-distal, 2.5 mm bucco-lingual width and 2 mm depth. Specimens were randomly divided into two equal groups I and II. Cavities were restored with VisCalor and SonicFill Bulk Fill, respectively. Materials were applied using the recommended adhesive and special dispenser. Specimens were then subjected to 500 thermal cycles, labelled and the restoration margins were inspected under stereomicroscope at X70 to detect and measure the marginal gap width. Specimen were then sectioned buccolingually using a microtome to detect and measure the internal gap width.
Results
Lower mean values of marginal gap width were recorded in VisCalor group compared to SonicFill group, however there was no statistically significant difference (
Conclusion
Both tested materials/techniques used to reduce the viscosity of the bulk fill composites presented nearly comparable marginal integrity results, while VisCalor application technique enhanced the internal adaptation compared to SonicFill method.