Restoration-related salivary Streptococcus mutans level: a dental caries risk factor?
| Autor: | J.F. Osborn, M.S. Cattaruzza, Adele Simonetti D'Arca, Stefano Petti, R. Pezzi |
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| Rok vydání: | 1997 |
| Předmět: |
Saliva
Decayed teeth Dental Caries Susceptibility Colony Count Microbial Dentistry Dental Caries Streptococcus mutans stomatognathic system Risk Factors Prevalence Humans Medicine Tooth Deciduous Risk factor Child Dental Restoration Permanent General Dentistry Orthodontics biology DMF Index business.industry Healthy subjects biology.organism_classification stomatognathic diseases Logistic Models Linear Models Population study Carious lesion business Tooth |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0300-5712 |
| DOI: | 10.1016/s0300-5712(96)00035-8 |
| Popis: | Objectives: The salivary level of Streptococcus mutans related to filled teeth was compared with the levels related to decayed and sound teeth, in order to establish whether the presence of restorations may increase the risk of infection of other teeth by Streptococcus mutans. Methods: The sound, decayed and filled teeth were recorded in 809, 6–7-year-old school-children. Salivary Streptococcus mutans detection (i.e. more than 1 × 104 CFU/ml) and counts were evaluated. Streptococcus mutans log count means and prevalence values of subjects with only sound teeth (group 1), with filled, without decayed teeth (group 2), with decayed, without filled teeth (group 3), were calculated and compared using the Student's t-test and the chi-square test. The effect of filled, decayed and sound teeth on Streptococcus mutans level was also evaluated using logistic regression. Results: Log count means and prevalence values of group 2 subjects were significantly lower than values of group 3 subjects (means, 0.92 vs 1.66; prevalence, 73.17% vs 94.63%) and statistically not-different from values of group 1 subjects (mean, 0.75; prevalence, 70.06%). The logistic regression analysis showed that the factors significantly increasing the risk of Streptococcus mutans being detected in saliva were only primary and/or permanent decayed teeth. The risk of Streptococcus mutans being detected in saliva was not affected by filled teeth more than sound teeth. Conclusions: In the present study population, the salivary Streptococcus mutans level attributable to filled teeth was low; this suggests that treatment of a carious lesion would cause a lowering of Streptococcus mutans concentration to the same levels as those shown by healthy subjects, thus reducing the risk of infection to other teeth. |
| Databáze: | OpenAIRE |
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