Do you feel like your dentist left a painful part of a tooth or bone sticking out from your extraction site? Another common side effect after an extraction can be caused by a small bone particle called a bone spur. A bone spur occurs when a tooth is extracted and the bone improperly heals in the space where the extraction occurred. This bone spur can become very annoying and sometimes painful if it cuts your tongue or cheek. Naturally, your body will attempt to reject this bone particle and push it out over time or recontour the bone so there is no longer a bony projection. In the most severe cases, additional surgery can be performed to remove this bone spicule. In less severe cases, it can be resolved with warm saltwater rinses, orajel, and time.