Tooth Loss in Periodontitis Patients

INCLUSION CRITERIA:

1. Initial diagnosis of chronic or aggressive periodontitis (Lindhe et al. 1999, Lang et al. 1999), with at least two sites with PPD and CAL ≥5mm
2. Diagnosed and treated by the same periodontist (LN)
3. Willing to give written informed consent for study participation
4. Willing to undergo SPT as per standard of care for at least 5 years

EXCLUSION CRITERIA:

1. Serious medical history that prevents patients from undergoing dental treatment
2. History of rheumatic fever, heart murmur, mitral valve prolapse, artificial heart valve or other conditions requiring prophylactic antibiotic coverage prior to invasive dental procedures
3. Current alcohol or drug abuse
4. Self-reported pregnancy or lactation
5. Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may compromise trial participation and/or interpretation of trial results and, in the judgement of the investigator, would make the subject inappropriate for entry into this trial