This video was made by Adam White, DDS with Beyond Dentistry and hits on all the points of the Greater Curve matrix system.
Below is the video description from Beyond Dentistry:
"Composite restorations are challenging, and there are many different matrix systems out there. I have tried a lot of them. My favorite so far is from a company called Greater Curve; they make a tofflemire band that is specifically for composites. Check out the video for some examples of the Greater Curve technique and why I like it so much.
This is not a sponsored video"