When used as directed and under professional guidance, whitening is widely used; temporary sensitivity can occur.

Whitening affects natural tooth structure; restorations may not change shade the same way, so planning is important.

Porcelain is typically more stain-resistant and long-lasting; composite can be more conservative and easier to repair in some cases.

Veneers can require removal of some enamel and are often not reversible; suitability and conservative planning are key.

Some patients experience sensitivity to hot/cold, especially early on; clinical planning and bite control reduce risk.