Epidemiology of root surface caries in patients treated for periodontal diseases

The 5-year incidence and intraoral distribution of decayed and filled root surfaces were evaluated in 379 black and 323 white residents of North Carolina aged 65 and older. During the period of study, approximately 39% of blacks developed at least one root DFS compared with 52% for whites (Wald χ² test, p = 0.062). When the results were calculated using the net root DFS increment, blacks did not have significantly higher rates than whites over the 5-year study period (0.52 surfaces/person versus 0.42 surfaces/person, Survey Regression, n = 363, p = 0.708). However, for blacks, the 5-year incidence density rate of root DFS was 0.26 per 60 surface-months at risk, and for whites the rate was 0.19 new root DFS per 60 surface-months (incidence density ratio = 1.33, 95% CI = 1.01–1.76, p = 0.047). Intraoral distribution patterns for root caries incidence revealed that the approximal surfaces of the anterior teeth were involved most frequently, particularly in the mandible and maxilla in whites, followed in decreasing order by the buccal surfaces of the lower anteriors and the mesial surfaces of the upper anteriors in blacks. Although root caries incidence rates were obviously low, there were significant differences in the occurrence of caries between blacks and whites. The pattern of occurrence was similar for both races with root surface disease being concentrated in the approximal surfaces of the anterior teeth in a small proportion of affected individuals, with whites presenting more filled root increments than blacks. These findings suggest a need for more caries treatment in blacks and increased monitoring of this population since they are at a higher risk for root caries.

Section: Discussionmentioning

confidence: 99%

Five-Year Incidence Rates and Intraoral Distribution of Root Caries among Community-Dwelling Older Adults

Lawrence¹,

Hunt²,

Beck³

et al. 1996

“…Caries in overdenture abutments can be regarded as caries of dental root surfaces. We have checked the groups for variables known to be related to root caries Ravald et al, 1986;Fure et al, 1988;Keltjens et al, 1988].…”

Section: Discussionmentioning

confidence: 99%

“…At the start of the study, a stimulated whole-saliva sample was collected from each subject by chewing on paraffin wax. Levels of MS in saliva were estimated as described before, using TYCSB agar [Keltjens et al, 1988].…”

Section: Clinical Examinationmentioning

confidence: 99%

Caries Control in Overdenture Patients: 18-Month Evaluation on Fluoride and Chlorhexidine Therapies

Keltjens

Schaeken²,

Hoeven³

et al. 1990

The aim of this study was to test the clinical effects of preventive regimens using fluoride and chlorhexidine on caries development in abutment teeth in patients with overdentures. 30 patients with immediate overdentures were distributed at random among three experimental groups. In these groups three different gels (placebo, fluoride, and chlorhexidine-fluoride) were tested by daily application. The patients were recalled at 6-month intervals for a period of 18 months. The life table survival ratios at patient level showed that in the chlorhexidine group caries development in the abutments was significantly reduced. In this group no caries developed. On comparison with the control group (placebo), no preventive effects of the gel were noticed for those in the fluoride group.

“…According to epidemiological studies, root caries is prevalent among patients with both treated and untreated periodontal disease [Hix and O'Leary, 1976;Ravald and Hamp, 1981;Keltjens et al, 1988]. Due to periodontal disease itself or to its treatment, root sur faces are often exposed supragingivally [Katz et al, 1982;Ravald et al.…”

mentioning

confidence: 99%

Factors Associated with Active and Inactive Root Caries in Patients with Periodontal Disease

Ravald

Birkhed

1991

The aim of this study was to analyze a number of microbial, salivary, and dietary factors in patients with clinically active and inactive root caries. 147 patients, aged 30–78 years, referred for specialist treatment of periodontal disease, were randomly selected. 645 decayed and 539 filled root surfaces were found. Out of the carious lesions, 372 (58%) were recorded as clinically active and 273 (42%) as inactive. 30 patients showed no lesions (group 1), 46 had only fillings or inactive lesions (group 2), and 35 showed 1–2 (group 3) and 36 ≥ 3 active lesions (group 4). The lactobacillus count differed significantly between all groups, except group 1 vs. 2, and the mutans streptococcus count between groups 1 vs. 4 and 2 vs. 3 and 4. Group 4 differed in plaque score from the other groups, and the salivary buffer effect differed between the inactive groups 1 and 2 and the active group 4. By stepwise multiple regression analysis, it was shown that lactobacillus count, plaque index, salivary buffer effect, dietary habit index, and number of exposed root surfaces contributed significantly to the coefficient of determination.