The Evaluation of Various Restoration Techniques on Internal Adaptation of Composites in Class V Cavities

Table 2

The experimental groups of the study.

Group	Type of restoration
1	Filtek Z250 (40 sec light-curing, 55°C, inserted in bulk)
2	Filtek Flow (40 sec light-curing, inserted in bulk)
3	Filtek Flow (0.5 mm layer at the axial wall, 20 sec light-curing); + Filtek Z250 (40 sec light-curing, 23°C)
4	Filtek Flow (0.5 mm layer at the axial wall, no light-curing); + Filtek Z250 (23°C) and co-light-curing for 40 sec
5; (control)	Filtek Z250 (40 sec light-curing, 23°C, inserted in bulk)