A 55-year-old female patient with a history of rheumatoid arthritis presents with dry mouth and swollen gums. She mentions she's been on methotrexate for the past year. What are the potential causes and the next steps?
This patient's symptoms suggest drug-induced gingival overgrowth, a condition that can occur with certain medications, including the immunosuppressant methotrexate. The next steps would involve discussion with the patient's rheumatologist to see if alternative medications are available. If the drug can't be changed, then strict plaque control and regular dental visits for professional cleanings can help manage the condition.