Rheumatoid arthritis can sometimes lead to other health complications, including oral conditions such as: 1) Oral infections – including bacterial and fungal infections. 2) Gingivitis – a mild form of gum disease that can cause swollen and tender gums. 3) Temporomandibular joint issues – causing pain when opening and closing your mouth. 4) Periodontitis – affects the bone and tissue supporting the teeth. 5) Sjögren’s syndrome – condition affecting the salivary glands that can lead to oral dryness and tooth decay. By seeing your dentist regularly and keeping up with your oral health through daily brushing and flossing, these conditions may be avoided or improved.