Explanation of why mouth pH decreases after meals, the damage caused by low pH, and how to change eating habits to prevent tooth decay.
After each meal, the pH in a person's mouth becomes lower due to the consumption of carbohydrates. Carbohydrates, especially sucrose and starchy foods, are metabolized by bacteria in the mouth, leading to acid production, which lowers the pH.
Low pH in the mouth can damage tooth enamel, resulting in cavities (dental caries). The acidic environment from carbohydrate fermentation can dissolve enamel, leading to tooth decay and potential oral pain.
To lessen the chances of suffering from tooth decay, a person can reduce sugar intake, limit between-meal snacks, and brush after meals to remove lingering carbohydrates. Additionally, fluoride treatment, regular dental care, and reducing sugar consumption can help prevent damage from low pH.
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