No. Whitening products only lighten natural tooth structure. Fillings, crowns, bridges, and veneers do not change color with whitening, so they may look darker or mismatched after the surrounding natural teeth become brighter.
If you have visible restorations, the dentist may recommend whitening first, then replacing old fillings or planning veneers or crowns to match the new shade. This sequence helps create a more even final result.