Gingival health and dental cleanliness in english schoolchildren

James, P; Jackson, D.; Slack, G. L.; Lawton, Frank

doi:10.1016/0003-9969(60)90019-4

Cited by 46 publications

(23 citation statements)

References 11 publications

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“…[25][26][27][28] With either tooth enamel or a restorative material, gingival inflammation is caused by bacterial products elaborated within the dental plaque. The bacterial products are also the primary etiologic factor in dental caries.…”

Section: Discussionmentioning

confidence: 99%

Thin sol-gel-derived silica coatings on dental pure titanium casting

Yoshida¹,

Kamada²,

Sato³

et al. 1999

J. Biomed. Mater. Res.

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The sol-gel dipping process, in which liquid silicon alkoxide is transformed into a solid silicon-oxygen network, can produce a thin film coating of silica (SiO(2)). The features of this method are high homogeneity and purity of the thin SiO(2) film and a low sinter temperature, which are important in the preparation of coating films that can protect metallic ion release from the metal substrate and prevent attachment of dental plaque. We evaluated the surface properties of dental pure titanium casting coated with a thin SiO(2) or SiO(2)/F-hybrid film by the sol-gel dipping process. The metal specimens were pretreated by dipping in isopropylalcohol solution containing 10 wt% 3-aminopropyl trimethoxysilane and treated by dipping in the silica precursor solution for 5 min, withdrawal at a speed of 2 mm/min, air-drying for 20 min at room temperature, heating at 120 degrees C for 20 min, and then storing at room temperature. Both SiO(2) and SiO(2)/F films bonded strongly (above 55 MPa) to pure titanium substrate by a tensile test. SiO(2(-)) and SiO(2)/F-coated specimens immersed in 1 wt% of lactic acid solution for two weeks showed significantly less release of titanium ions (30. 5 ppb/cm(2) and 9.5 ppb/cm(2), respectively) from the substrate than noncoated specimens (235.2 ppb/cm(2)). Hydrophobilization of SiO(2(-)) and SiO(2)/F-coated surfaces resulted in significant increases of contact angle of water (81.6 degrees and 105.7 degrees, respectively) compared with noncoated metal specimens (62.1 degrees ). The formation of both thin SiO(2) and SiO(2)/F-hybrid films by the sol-gel dipping process on the surface of dental pure titanium casting may be useful clinically in enhancing the bond strength of dental resin cements to titanium, preventing titanium ions release from the substrate, and reducing the accumulation of dental plaque attaching to intraoral dental restorations.

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Section: Discussionmentioning

confidence: 99%

Thin sol-gel-derived silica coatings on dental pure titanium casting

Yoshida¹,

Kamada²,

Sato³

et al. 1999

J. Biomed. Mater. Res.

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“…The ratio of water-soluble and alkali-soluble fractions was approximately 60:40 in both natural and experimental plaques. Some epidemiological observations have suggested that teeth exposed to natural fluoridation are cleaner than those in areas with a low fluo ride content [Möller, 1965;Kotrba et al, 1966], Other authors have found a non-significant relationship between the fluoride content in drinking water and gingivitis or quantity of plaque [James et al, 1960; Englander and White, 1964; Moore et al, 1964; M urray, 1969;Künzel and Palitzsch, 1970].Tn the intercellular matrix of dental plaque, fluoride ions are concen trated up to the amount of 0.8-1.8 ppm. The fluoride content in plaque is significantly higher in fluoridated localities than in control areas [Dawes et al, 1965], A larger amount of fluoride ions is supposed to be bound to or within the microbial cells [Jenkins et al, 1969].…”

mentioning

confidence: 99%

Amount and Distribution of Extracellular Polysaccharides in Dental Microbial Plaque

Broukal¹,

Zajicek²

1974

Caries Res

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Extracellular polysaccharides (EPS) in human dental plaque were investigated in relation to fluoride concentration in drinking water under both natural and experimental conditions. In a low-fluoride area (0.2 ppm F^––) the level of EPS amounted to 15.2% and in a fluoridated area (1.0 ppm F^––) to 10.3% of the dry weight of samples (a significant difference). Under experimental conditions (after mouth-rinsing with fluoride-sucrose solutions), a significant influence of F^–– on the level of EPS could only be observed at a concentration of 10.0 ppm. The ratio of water-soluble and alkali-soluble fractions was approximately 60:40 in both natural and experimental plaques.

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“…This may be because of higher percentage of hyper mineralized surface, resorption bays/cavitations, partial/initial mineralization of connective tissue fibers, insertion area for fibers; globular mineralization debris than the non-Fluorosed group. 27 Within the fluorosis group, the presence of the four organisms were analyzed and compared between mild, moderate and severe fluorosis subgroups using Kruskal Wallis ANOVA TEST and further comparison between the subgroups was done using Mann Whitney U test. The comparison revealed statistically insignificant difference in the However the detection rates of T. forsythia were higher in moderate and severe fluorosis subgroups and these differences when compared with Kruskal Wallis ANOVA TEST were statistically significant.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Subgingival Microbiota in Fluorosed and Non-fluorosed Chronic Periodontitis Patients

2015

IJDA

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ABSTRACT:Background: Periodontal disease comprises a group of inflammatory conditions of the supporting tissues of the teeth that are caused by bacteria. Only few species of subgingival microbiota have been identified as etiologic pathogens. The roots of teeth with mottled enamel are irregular and rough which favor plaque accumulation. The present study aimed at assessing the microbial composition of subgingival plaque in Fluorosed and Non Fluorosed Chronic Periodontitis subjects using PCR. Materials and Method: 40 chronic periodontitis patients were selected and divided into fluorosed and nonfluorosed groups. The Oral hygiene status, fluorosis status and periodontal status were recorded and compared. After recording the clinical parameters, at least 3 sites of 5-7 mm of pocket depth were selected for subgingival pooled plaque sample collection. Samples were subjected to culture and PCR analysis. Results: The PCR results for A. actinomycetemcomitans, P. gingivalis, T. forsythia and T. denticola organisms when compared between the groups showed nostatistically significant difference. But for T. forsythia and T. denticolastatistically significant difference was observed. Conclusion: The patients in fluorosed group showed more positive findings for periodontitis when compared to non-fluorosed group. Severity of periodontal disease was directly proportionate with the degree of fluorosis when compared within the fluorosed group. Qualitative comparison of subgingival microbiota showed no significant differences between the fluorosed and non fluorosed group. The specific detection rates of T. forsythia and T. denticola is more in the fluorosed group than the non fluorosed group.

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Gingival health and dental cleanliness in english schoolchildren

Cited by 46 publications

References 11 publications

Thin sol-gel-derived silica coatings on dental pure titanium casting

Thin sol-gel-derived silica coatings on dental pure titanium casting

Amount and Distribution of Extracellular Polysaccharides in Dental Microbial Plaque

Comparison of Subgingival Microbiota in Fluorosed and Non-fluorosed Chronic Periodontitis Patients

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