Longitudinal assessment of risk factors for @entity2520 is necessary to provide evidence that a putative risk factor or risk indicator is a true risk factor. The purpose of the present study was to explore longitudinally a variety of markers as possible periodontal risk factors in subjects with little or no @entity2520 at baseline. 415 subjects with mild or @entity2520 were examined: medical and dental history; socioeconomic profile, clinical measurements, microbial samples and radiographic assessment of bone height were performed at baseline, and at a follow-up examination 2 to 5 years later. Mean @entity5951 ( @entity5951 ) at baseline was 1.99+/-0.37 mm while mean overall change was 0.1 mm which amounts to an annual rate of 0.04 mm. Overall mean clinical attachment level (1.75+/-0.6 mm) at baseline resulted in mean attachment change of 0.28 mm (0.12 mm annually). @entity133 ( @entity133 ) at baseline (mean 2.05+/-0.85 mm) resulting in a mean net loss of 0.1 mm. Approximately 10% of all sites presented for the second visit with @entity6730 exceeding the threshold (4.4% annually), while only 2.2% of all sites exhibited @entity1017 (0.88% annually). Older individuals exhibited greater mean bone loss but the least amount of @entity6730 . Current smokers exhibited greater disease progression compared to non-smokers. Tooth morbidity (0.17 teeth/ @entity1 /year) was associated with greater baseline CAL and @entity604 , and an assortment of systemic conditions. Subjects who harbored @entity3289 (Bf) at baseline had greater loss in @entity133 ; likewise, these subjects experienced greater proportions of losing sites and twice as much tooth mortality compared to Bf-negative @entity1 . Baseline clinical parameters correlated strongly with the outcome, i.e., subjects with deeper mean pocket depth at baseline exhibited greater increase in pocket depth overtime; while subjects with greater @entity6730 at baseline exhibited greater @entity6730 between the 1st and 2nd visits.

Longitudinal study of predictive factors for XXXX and tooth loss.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity6730 :: ('MESH:D017622', 'Disease') :: ['attachment loss'] @entity2520 :: ('MESH:D010510', 'Disease') :: ['periodontal disease', 'little periodontal disease'] @entity604 :: ('MESH:D016301', 'Disease') :: ['ACH loss'] @entity133 :: ('MESH:D002282', 'Disease') :: ['Alveolar crestal height', 'ACH'] @entity3289 :: ('28112', 'Species') :: ['Bacteroides forsythus'] @entity1017 :: ('MESH:D015430', 'Disease') :: ['attachment gain'] @entity5951 :: ('MESH:D005888', 'Disease') :: ['PPD', 'probing pocket depth']
@entity2520 :: (MESH:D010510,Disease) :: ['periodontal disease']
