This retrospective study focused on the frequency of @entity2524 due to periodontal @entity733 among 42 @entity1 who were treated by a single clinician over a 5- to 29-year period. A total of 114 @entity1 were selected from the active periodontal recall schedule of a single periodontist at The University of Iowa College of Dentistry. The criteria for inclusion in the study included having a history of moderate to advanced @entity2521 , being on 3 to 6 month recall periodontal maintenance care, and completion of active periodontal therapy prior to October 1987. Other parameters evaluated were age; gender; number of teeth present and missing at the initial, reevaluation, and last periodontal recall visit; initial periodontal prognosis; furcation involvement; non-surgical and surgical periodontal therapy; and reasons for @entity2524 . @entity1 were grouped according to the number of teeth lost following active periodontal treatment into well-maintained (0 to 3), downhill (4 to 9), and extreme downhill (10 to 23) groups. Forty-two of the 114 @entity1 were identified as having one or more periodontal abscesses. A total of 109 teeth were affected by periodontal @entity733 of which 49 (45%) teeth were lost and 60 (55%) were successfully maintained over an average of 12.5 years (5 to 29 years). More furcated teeth were lost than nonfurcated teeth and teeth given a hopeless prognosis were lost more consistently than those given a questionable prognosis in all groups. The frequency of periodontal @entity2524 per @entity1 was greater in the downhill and extreme downhill response groups than the well-maintained group. This suggests that teeth with a history of periodontal @entity733 can be treated and maintained for several years.

@entity2524 due to periodontal XXXX : a retrospective study.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients', 'patient'] @entity2521 :: ('MESH:D010518', 'Disease') :: ['periodontitis'] @entity733 :: ('MESH:D000038', 'Disease') :: ['abscess'] @entity2524 :: ('MESH:D016388', 'Disease') :: ['tooth loss', 'abscess and tooth loss']
@entity733 :: (MESH:D000038,Disease) :: ['abscess']
