The effect of periodontal therapy on the number of cariogenic bacteria in different intra‐oral niches
Identifieur interne : 009323 ( Main/Curation ); précédent : 009322; suivant : 009324The effect of periodontal therapy on the number of cariogenic bacteria in different intra‐oral niches
Auteurs : M. Quirynen ; S. Gizani [Belgique] ; C. Mongardini ; D. Declerck [Belgique] ; F. Vinckier [Belgique] ; D. Van SteenbergheSource :
- Journal of Clinical Periodontology [ 0303-6979 ] ; 1999-05.
English descriptors
- KwdEn :
- Active caries lesions, Active lesions, Aerobic, Anaerobic, Approximal plaque, Baseline, Caries, Caries activity, Caries experience, Caries lesions, Caries research, Caries susceptibility, Cariogenic, Cariogenic bacteria, Carious, Carious lesions, Carious root surfaces, Catholic university leuven, Clin periodontol, Clinical periodontology, Community dentistry, Dental caries, Dental plaque, Dental research, Detection frequency, Different niches, Dorsum, Echantillons provenant, First quadrant, Flora, Gram staining, Lactobacilli species, Lactobacillus, Lesion, Microbial, Microbial load, Microbial shift, Months period, More cariogenic flora, Mutans, Mutans species, Mutans streptococci, Niche, Nombre, Oral biology, Oral cavity, Oral epidemiology, Oral microbiology, Oral mucous membranes, Other species, Periodontal, Periodontal disease, Periodontal therapy, Periodontal treatment, Periodontitis, Periodontology, Perodontal therapy, Phase contrast microscopy, Pilot study, Plaque, Positive sites, Quirynen, Ravald, Ravald hamp, Root caries, Root caries susceptibility, Root planing, Root surface caries, Root surfaces, Saliva, Same visits, Selective medium, Significant increase, Significant reduction, Streptococcus, Streptococcus mutans, Supragingival, Supragingival plaque, Tongue dorsum, Total number, Traitement parodontal, University hospital, Unstimulated saliva.
- Teeft :
- Active caries lesions, Active lesions, Aerobic, Anaerobic, Approximal plaque, Baseline, Caries, Caries activity, Caries experience, Caries lesions, Caries research, Caries susceptibility, Cariogenic, Cariogenic bacteria, Carious, Carious lesions, Carious root surfaces, Catholic university leuven, Clin periodontol, Clinical periodontology, Community dentistry, Dental caries, Dental plaque, Dental research, Detection frequency, Different niches, Dorsum, Echantillons provenant, First quadrant, Flora, Gram staining, Lactobacilli species, Lactobacillus, Lesion, Microbial, Microbial load, Microbial shift, Months period, More cariogenic flora, Mutans, Mutans species, Mutans streptococci, Niche, Nombre, Oral biology, Oral cavity, Oral epidemiology, Oral microbiology, Oral mucous membranes, Other species, Periodontal, Periodontal disease, Periodontal therapy, Periodontal treatment, Periodontitis, Periodontology, Perodontal therapy, Phase contrast microscopy, Pilot study, Plaque, Positive sites, Quirynen, Ravald, Ravald hamp, Root caries, Root caries susceptibility, Root planing, Root surface caries, Root surfaces, Saliva, Same visits, Selective medium, Significant increase, Significant reduction, Streptococcus, Streptococcus mutans, Supragingival, Supragingival plaque, Tongue dorsum, Total number, Traitement parodontal, University hospital, Unstimulated saliva.
Abstract
Abstract. Several publications have reported an increased susceptibility for root caries after periodontal therapy. It has been suggested that newly exposed roots were less resistant to cariogenic species. This study examined the hypothesis that the increased susceptibility could also be related to an intra‐oral microbial shift during the initial phase of the periodontal therapy from a perio‐pathogenic to a more cariogenic flora. 10 patients with severe periodontitis were followed for 8 months after thorough scaling and root planing in combination with optimal plaque control. At baseline and after 4 and 8 months, samples were taken from the saliva, the tongue dorsum and the supragingival interdental spaces. These samples were cultured both aerobically and anaerobically in order to determine the total number of colony forming units (CFU) per sample as well as the number of CFU of Streptococcus mutans and Lactobacillus species. Oral hygiene parameters were recorded at the same visits. Finally, at baseline and at the 8 months follow‐up, changes in caries activity and periodontal health were registered. Although the total number of aerobic and anaerobic CFU in samples from the tongue and the saliva remained nearly constant over the entire observation period (variations within 0.5 log), significant (p≤0.05) increases in the number of S. mutans could be detected, especially at month 8. The significant decrease in the total number of anaerobic CFU in samples from the teeth was not associated with a reduction in the number of S. mutans, so that also for this niche the relative proportion of the latter increased. The number of lactobacilli species for the different niches showed only negligible changes (within 0.5 log values), except for samples from the teeth for which a small (1 log), but statistically significant (p<0.01), reduction could be detected. The periodontal conditions improved for all patients, but the caries activity could not be arrested. These findings seem to indicate that the increased caries susceptibility after periodontal therapy might partially be explained by a significant increase in the number of S. mutans due to ecological changes within the oral cavity. The clinical consequence of this observation would be to advocate a more strict caries preventive program during initial periodontal therapy.
Url:
DOI: 10.1034/j.1600-051X.1999.260511.x
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Active caries lesions</term>
<term>Active lesions</term>
<term>Aerobic</term>
<term>Anaerobic</term>
<term>Approximal plaque</term>
<term>Baseline</term>
<term>Caries</term>
<term>Caries activity</term>
<term>Caries experience</term>
<term>Caries lesions</term>
<term>Caries research</term>
<term>Caries susceptibility</term>
<term>Cariogenic</term>
<term>Cariogenic bacteria</term>
<term>Carious</term>
<term>Carious lesions</term>
<term>Carious root surfaces</term>
<term>Catholic university leuven</term>
<term>Clin periodontol</term>
<term>Clinical periodontology</term>
<term>Community dentistry</term>
<term>Dental caries</term>
<term>Dental plaque</term>
<term>Dental research</term>
<term>Detection frequency</term>
<term>Different niches</term>
<term>Dorsum</term>
<term>Echantillons provenant</term>
<term>First quadrant</term>
<term>Flora</term>
<term>Gram staining</term>
<term>Lactobacilli species</term>
<term>Lactobacillus</term>
<term>Lesion</term>
<term>Microbial</term>
<term>Microbial load</term>
<term>Microbial shift</term>
<term>Months period</term>
<term>More cariogenic flora</term>
<term>Mutans</term>
<term>Mutans species</term>
<term>Mutans streptococci</term>
<term>Niche</term>
<term>Nombre</term>
<term>Oral biology</term>
<term>Oral cavity</term>
<term>Oral epidemiology</term>
<term>Oral microbiology</term>
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<term>Other species</term>
<term>Periodontal</term>
<term>Periodontal disease</term>
<term>Periodontal therapy</term>
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<term>Periodontitis</term>
<term>Periodontology</term>
<term>Perodontal therapy</term>
<term>Phase contrast microscopy</term>
<term>Pilot study</term>
<term>Plaque</term>
<term>Positive sites</term>
<term>Quirynen</term>
<term>Ravald</term>
<term>Ravald hamp</term>
<term>Root caries</term>
<term>Root caries susceptibility</term>
<term>Root planing</term>
<term>Root surface caries</term>
<term>Root surfaces</term>
<term>Saliva</term>
<term>Same visits</term>
<term>Selective medium</term>
<term>Significant increase</term>
<term>Significant reduction</term>
<term>Streptococcus</term>
<term>Streptococcus mutans</term>
<term>Supragingival</term>
<term>Supragingival plaque</term>
<term>Tongue dorsum</term>
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<term>Traitement parodontal</term>
<term>University hospital</term>
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<term>Aerobic</term>
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<term>Approximal plaque</term>
<term>Baseline</term>
<term>Caries</term>
<term>Caries activity</term>
<term>Caries experience</term>
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<term>Caries research</term>
<term>Caries susceptibility</term>
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<term>Cariogenic bacteria</term>
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<term>Different niches</term>
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<term>Echantillons provenant</term>
<term>First quadrant</term>
<term>Flora</term>
<term>Gram staining</term>
<term>Lactobacilli species</term>
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<term>Microbial</term>
<term>Microbial load</term>
<term>Microbial shift</term>
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<term>Nombre</term>
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<term>Oral cavity</term>
<term>Oral epidemiology</term>
<term>Oral microbiology</term>
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<term>Pilot study</term>
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<term>Positive sites</term>
<term>Quirynen</term>
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<term>Root surface caries</term>
<term>Root surfaces</term>
<term>Saliva</term>
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<term>Selective medium</term>
<term>Significant increase</term>
<term>Significant reduction</term>
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<front><div type="abstract" xml:lang="en">Abstract. Several publications have reported an increased susceptibility for root caries after periodontal therapy. It has been suggested that newly exposed roots were less resistant to cariogenic species. This study examined the hypothesis that the increased susceptibility could also be related to an intra‐oral microbial shift during the initial phase of the periodontal therapy from a perio‐pathogenic to a more cariogenic flora. 10 patients with severe periodontitis were followed for 8 months after thorough scaling and root planing in combination with optimal plaque control. At baseline and after 4 and 8 months, samples were taken from the saliva, the tongue dorsum and the supragingival interdental spaces. These samples were cultured both aerobically and anaerobically in order to determine the total number of colony forming units (CFU) per sample as well as the number of CFU of Streptococcus mutans and Lactobacillus species. Oral hygiene parameters were recorded at the same visits. Finally, at baseline and at the 8 months follow‐up, changes in caries activity and periodontal health were registered. Although the total number of aerobic and anaerobic CFU in samples from the tongue and the saliva remained nearly constant over the entire observation period (variations within 0.5 log), significant (p≤0.05) increases in the number of S. mutans could be detected, especially at month 8. The significant decrease in the total number of anaerobic CFU in samples from the teeth was not associated with a reduction in the number of S. mutans, so that also for this niche the relative proportion of the latter increased. The number of lactobacilli species for the different niches showed only negligible changes (within 0.5 log values), except for samples from the teeth for which a small (1 log), but statistically significant (p<0.01), reduction could be detected. The periodontal conditions improved for all patients, but the caries activity could not be arrested. These findings seem to indicate that the increased caries susceptibility after periodontal therapy might partially be explained by a significant increase in the number of S. mutans due to ecological changes within the oral cavity. The clinical consequence of this observation would be to advocate a more strict caries preventive program during initial periodontal therapy.</div>
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