Receiving inlays and onlays is generally not painful. Local anesthesia is used during the procedure to numb the area, ensuring that you don't feel any discomfort. Some patients might experience mild sensitivity or discomfort after the procedure, but this usually subsides quickly. If you do experience any discomfort, your dentist can provide recommendations or prescribe pain relief measures. Overall, the process of getting inlays and onlays is designed to be as comfortable as possible for patients.