If you wear gold grillz and smoke, it's important to clean them regularly to prevent discoloration or damage. After smoking, rinse your mouth with water to remove any residue, and then brush your grillz with a soft-bristled toothbrush and non-abrasive toothpaste. You can also soak your grillz in a mixture of water and baking soda for a few minutes to help remove any stubborn stains.