Strong Cleaning Ability Removes plaque and stains: Baking soda is a fine crystalline powder with gentle abrasive properties, effectively removing plaque and stains from the tooth surface, including tea stains, coffee stains, and tobacco stains, restoring teeth to their natural whiteness. Breaks down dental plaque: It neutralizes harmful acids produced by oral bacteria, which cause plaque formation and cavities, thus effectively breaking down plaque on the teeth, reducing plaque buildup, and maintaining oral cleanliness.Significant Whitening Effect Physical friction for stain removal: Baking soda particles remove pigments from the tooth surface through physical friction, making teeth appear whiter. However, this whitening effect primarily targets extrinsic staining on the tooth surface and is ineffective against intrinsic discoloration such as fluorosis and tetracycline staining. Weak alkaline neutralization: Baking soda is weakly alkaline, neutralizing the acidic environment in the mouth, reducing pigment deposition on the tooth surface, and thus helping to maintain the whitening effect to some extent.Good Gum Protection Regulates oral pH balance: The weak alkalinity of baking soda can increase the pH value of the mouth, reducing the growth environment for bacteria, thereby preventing gum bleeding and inflammation, and lowering the risk of developing oral diseases such as gingivitis. Antibacterial and breath freshening: It has certain antibacterial properties, inhibiting the growth and reproduction of bacteria in the mouth, reducing odors caused by bacterial decomposition of food residues, thus helping to freshen breath and maintain a clean and comfortable mouth.