Final answer:
Oxygenating agents in the mouth create an oxygen-rich environment that is inhospitable to anaerobic bacteria. They are used in toothpaste and mouthwashes to kill bacteria and prevent dental problems. Oxygen therapy can also be used to treat infections by increasing oxygen saturation in tissues.
Step-by-step explanation:
Oxygenating agents affect bacteria in the mouth by creating an oxygen-rich environment that is inhospitable to anaerobic bacteria. Anaerobic bacteria are the main culprits behind gum disease and tooth decay. Oxygenating agents, such as carbamide peroxide found in toothpaste and mouthwashes, help to kill these bacteria and prevent dental problems. Additionally, oxygen therapy can be used to treat infections by increasing oxygen saturation in tissues and enhancing the body's immune response.