Faculty members in the section of Periodontics are engaged in several areas of periodontal research. A main area of interest has been the development of new surgical techniques to regenerate periodontal tissues around diseased teeth and to regenerate bone in order to facilitate placement of dental implants. Another area of research has been to understand the role of bacteria, the immune system and genetics in periodontal and peri-implant disease and to translate this information into effective preventive and therapeutic strategies. More recently, we have started to investigate the ability to utilize saliva to diagnose various forms of periodontal diseases. Additionally, our group has had interest in research to understand the observed association between periodontal infection and systemic health problems such as diabetes, heart and lung diseases, stroke and low-birth-weight premature births.