Cavities can develop as a result of mouth breathing due to the decreased production of saliva. Saliva helps to neutralize the acids produced by bacteria in the mouth, keeping the teeth healthy.
When a person breathes through their mouth, particularly during sleep, the air flow can cause the mouth to become dry, leading to decreased saliva production. The lack of saliva can allow the bacteria in the mouth to thrive, leading to an increased risk of cavities. In contrast, nasal breathing helps to humidify and filter the air, reducing the risk of dry mouth.
