(A) Crestal bone loss associated with the health status of the patient (ASA-I indicates healthy; ASA-2, mild systemic disease; ASA-3, severe systemic disease). There was no major difference in the crestal bone loss for ASA-1 and ASA-2 groups, whereas ASA-3 patients experienced somewhat higher amounts of bone loss. (B) Crestal bone loss associated with patients with a history of smoking and those who did not smoke. There was no significant difference between the 2 groups