Inflammation in the mouth, often referred to medically as or oral mucositis , is the swelling and irritation of the delicate tissues lining the mouth. It can affect the gums, tongue, inner cheeks, lips, and roof of the mouth, often making daily activities like eating, talking, and sleeping difficult. Common Causes of Oral Inflammation

The most frequent cause is , which leads to plaque buildup and subsequent gum disease. Other triggers include: Mouth Sores and Inflammation - Mouth and Dental Disorders