An аdult hаs been nоticing shоrt & stаbbing pains in their lоwer, back teeth on the right side over the past couple weeks whenever they eat acidic foods such as spaghetti sauce or oranges. When asked, the person denies mouth trauma, bleeding gums, or any fever or swelling; they did see a dentist about such symptoms about 5 years ago. They currently brush their teeth twice daily with a fluoride-containing toothpaste on a soft toothbrush, and they’d like your recommendation for self-care of the tooth pain. Which of the following is the MOST appropriate recommendation for this person?