Factors which influence levels of selected organisms in saliva of older individuals.
Identifieur interne : 009651 ( Ncbi/Curation ); précédent : 009650; suivant : 009652Factors which influence levels of selected organisms in saliva of older individuals.
Auteurs : W J Loesche ; A. Schork ; M S Terpenning ; Y M Chen ; J. StollSource :
- Journal of Clinical Microbiology [ 0095-1137 ] ; 1995.
Descripteurs français
- KwdFr :
- Activités de la vie quotidienne, Adulte d'âge moyen, Appareils de prothèse dentaire, Bactéries à Gram positif (isolement et purification), Caries dentaires, Humains, Lactobacillus (isolement et purification), Levures (isolement et purification), Mâchoire partiellement édentée, Salive (microbiologie), Salive (sécrétion), Streptococcus (isolement et purification), Sujet âgé, Vieillissement, Xérostomie.
- MESH :
- isolement et purification : Bactéries à Gram positif, Lactobacillus, Levures, Streptococcus.
- microbiologie : Salive.
- sécrétion : Salive.
- Activités de la vie quotidienne, Adulte d'âge moyen, Appareils de prothèse dentaire, Caries dentaires, Humains, Mâchoire partiellement édentée, Sujet âgé, Vieillissement, Xérostomie.
English descriptors
- KwdEn :
- Activities of Daily Living, Aged, Aging, Dental Caries, Dentures, Gram-Positive Bacteria (isolation & purification), Humans, Jaw, Edentulous, Partially, Lactobacillus (isolation & purification), Middle Aged, Saliva (microbiology), Saliva (secretion), Streptococcus (isolation & purification), Xerostomia, Yeasts (isolation & purification).
- MESH :
- isolation & purification : Gram-Positive Bacteria, Lactobacillus, Streptococcus, Yeasts.
- microbiology : Saliva.
- secretion : Saliva.
- Activities of Daily Living, Aged, Aging, Dental Caries, Dentures, Humans, Jaw, Edentulous, Partially, Middle Aged, Xerostomia.
Abstract
The most commonly measured bacterial parameters in saliva are the levels of the mutans group streptococci and lactobacilli, which have diagnostic implications for the incidence of dental decay. Diagnostic guidelines which are applicable to children and young adults in whom most, if not all, teeth are present and in whom the rate of stimulated saliva is almost always greater than 0.5 ml/min have been developed. Dental decay is a potential health problem of considerable magnitude among elderly individuals. In elderly individuals, missing teeth, the presence of dentures, and a reduced salivary flow could confound the interpretation of salivary levels of cariogenic bacteria. In the present study, in which saliva was collected from more than 560 elderly individuals (average age, 70 +/- 8 years), there was a significant positive relationship between the salivary levels of Streptococcus mutans and increased numbers of teeth. There was a positive association between the salivary levels of S. mutans and decay when the data were stratified for the presence of a complaint of xerostomia and the presence of dentures. However, a similar analysis indicated that lactobacilli and yeasts were more likely to be associated with decay. The various variables which could influence the bacterial counts per milliliter of saliva, e.g., independent or dependent living status, complaint of xerostomia, stimulated salivary flow, salivary pH, the presence of dentures, number of teeth, and decay, were analyzed simultaneously by using a multivariable linear model. In that analysis the number of decayed teeth was significantly associated with the presence of lactobacilli (P = 0.0001) and yeasts (P = 0.025) but not with the presence of S. mutans.(ABSTRACT TRUNCATED AT 250 WORDS)
Url:
PubMed: 8567881
PubMed Central: 228526
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PMC:228526Le document en format XML
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<term>Dental Caries</term>
<term>Dentures</term>
<term>Gram-Positive Bacteria (isolation & purification)</term>
<term>Humans</term>
<term>Jaw, Edentulous, Partially</term>
<term>Lactobacillus (isolation & purification)</term>
<term>Middle Aged</term>
<term>Saliva (microbiology)</term>
<term>Saliva (secretion)</term>
<term>Streptococcus (isolation & purification)</term>
<term>Xerostomia</term>
<term>Yeasts (isolation & purification)</term>
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<term>Adulte d'âge moyen</term>
<term>Appareils de prothèse dentaire</term>
<term>Bactéries à Gram positif (isolement et purification)</term>
<term>Caries dentaires</term>
<term>Humains</term>
<term>Lactobacillus (isolement et purification)</term>
<term>Levures (isolement et purification)</term>
<term>Mâchoire partiellement édentée</term>
<term>Salive (microbiologie)</term>
<term>Salive (sécrétion)</term>
<term>Streptococcus (isolement et purification)</term>
<term>Sujet âgé</term>
<term>Vieillissement</term>
<term>Xérostomie</term>
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<term>Lactobacillus</term>
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<term>Yeasts</term>
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<term>Levures</term>
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<term>Caries dentaires</term>
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<front><div type="abstract" xml:lang="en"><p>The most commonly measured bacterial parameters in saliva are the levels of the mutans group streptococci and lactobacilli, which have diagnostic implications for the incidence of dental decay. Diagnostic guidelines which are applicable to children and young adults in whom most, if not all, teeth are present and in whom the rate of stimulated saliva is almost always greater than 0.5 ml/min have been developed. Dental decay is a potential health problem of considerable magnitude among elderly individuals. In elderly individuals, missing teeth, the presence of dentures, and a reduced salivary flow could confound the interpretation of salivary levels of cariogenic bacteria. In the present study, in which saliva was collected from more than 560 elderly individuals (average age, 70 +/- 8 years), there was a significant positive relationship between the salivary levels of Streptococcus mutans and increased numbers of teeth. There was a positive association between the salivary levels of S. mutans and decay when the data were stratified for the presence of a complaint of xerostomia and the presence of dentures. However, a similar analysis indicated that lactobacilli and yeasts were more likely to be associated with decay. The various variables which could influence the bacterial counts per milliliter of saliva, e.g., independent or dependent living status, complaint of xerostomia, stimulated salivary flow, salivary pH, the presence of dentures, number of teeth, and decay, were analyzed simultaneously by using a multivariable linear model. In that analysis the number of decayed teeth was significantly associated with the presence of lactobacilli (P = 0.0001) and yeasts (P = 0.025) but not with the presence of S. mutans.(ABSTRACT TRUNCATED AT 250 WORDS)</p>
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