After your onlay is placed, it is important to follow these care instructions to ensure the long-term success of your new restoration immediately after your onlay placement. It is important to avoid eating or drinking until the anesthesia has worn off to prevent possible injury to your lips, tongue, and cheeks. It's normal to experience some sensitivity to pressure, heat, and cold for several days following the procedure, but this should pass as your mouth adapts to your new onlay. If you experience discomfort, you can take an over-the-counter pain reliever if needed. Your finished restoration may be shaped slightly different than your original tooth. Your tongue may magnify these small differences, but you'll become accustomed to them within a few days. Daily home care will increase the longevity of your new onlay. You should resume regular brushing and flossing immediately to keep your onlay free of plaque buildup and decay. If your bite feels uneven or if you experience persistent pain or sensitivity outside of the norm, it is important to contact your doctor's office for assistance.