Explainers
Whitening Pens Explained — How They Work, What Materials Matter, and Key Terms
These explainers cover how whitening pens support alignment and flexibility, the differences between foam, cork, and wood, block dimensions and density, and how firmness affects your practice—giving you the fundamentals before you start comparing options.
How Whitening Pens Work
Foam, Cork, & Wood Materials
Size, Density, & Firmness
Block Uses by Practice Style