Can hydrogen peroxide solution be used as a mouth rinse?

Hydrogen peroxide solution, commonly known as hydrogen peroxide, can be used for mouth rinsing under specific circumstances, but only under medical supervision. When oral inflammation occurs—such as stomatitis, gingivitis, or tonsillitis—hydrogen peroxide may serve as a disinfectant. After proper dilution, it can be used as a mouthwash to reduce the risk of bacterial infection. Hydrogen peroxide has antiseptic and bactericidal properties, effectively breaking down bacteria below the gumline and in hard-to-reach areas, altering the anaerobic environment within periodontal pockets, and helping prevent gum swelling. However, using hydrogen peroxide as a mouthwash also carries certain risks. Due to its strong corrosive and irritating nature, improper use may cause harm to the body, such as damaging oral mucosa or irritating the lingual papillae. It is essential to strictly follow medical instructions for diluting hydrogen peroxide and to rinse the mouth with clean water or saline afterward to avoid excessive concentration or prolonged rinsing time.