Periodontal regenerative procedures are a subset of surgical procedures that can be performed either by using special membranes or tissue-stimulating proteins. Both of these encourage your body to regenerate the original bone and periodontal ligament that was originally lost around the teeth. Eliminating existing bacteria and regenerating bone and tissue helps to reduce pocket depth and repair damage caused by the progression of periodontal disease. It is important to note that periodontal regeneration is best attempted only if selected conditions exist and that it is not always possible to regenerate periodontal tissue that has been lost due to periodontal disease.