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Titolo:
The effect of repeated professional supragingival plaque removal on the composition of the supra- and subgingival microbiota
Autore:
Ximenez-Fyvie, LA; Haffajee, AD; Som, S; Thompson, M; Torresyap, G; Socransky, SS;
Indirizzi:
Forsyth Inst, Dept Periodontol, Boston, MA 02115 USA Forsyth Inst Boston MA USA 02115 , Dept Periodontol, Boston, MA 02115 USA
Titolo Testata:
JOURNAL OF CLINICAL PERIODONTOLOGY
fascicolo: 9, volume: 27, anno: 2000,
pagine: 637 - 647
SICI:
0303-6979(200009)27:9<637:TEORPS>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
NON-SURGICAL TREATMENT; PERIODONTAL-DISEASE; BACTERIAL-COLONIZATION; BARRIER MATERIAL; MICROFLORA; POCKETS; REGENERATION;
Keywords:
microbiology; periodontal health; periodontal disease; supragingival plaque; subgingival plaque; periodontal pathogens; bacteria; DNA probes; treatment;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Haffajee, AD Forsyth Inst, Dept Periodontol, 140 Fenway, Boston, MA 02115 USA Forsyth Inst 140 Fenway Boston MA USA 02115 ton, MA 02115 USA
Citazione:
L.A. Ximenez-Fyvie et al., "The effect of repeated professional supragingival plaque removal on the composition of the supra- and subgingival microbiota", J CLIN PER, 27(9), 2000, pp. 637-647

Abstract

Background, aims: The purpose of the present investigation was to determine the effect of weekly professionally administered supragingivaI plaque removal on the composition of the supra and subgingival microbiota. Methods: 18 adult subjects with periodontitis who had been treated and were in a maintenance phase of therapy were clinically and microbiologically monitored at baseline, 3, 6 and 12 months. After the baseline visit, the subjects received scaling and root planing followed by professional supragingival plaque removal every week for 3 months. Clinical measures of plaque accumulation, bleeding on probing (BOP), gingival redness, suppuration, pocketdepth and attachment level were made at 6 sites per tooth at each visit. Separate supra (N=1804) and subgingival (N = 1804) plaque samples were takenfrom the mesial aspect of all teeth excluding third molars in each subjectat each time point and evaluated for their content of 40 bacterial taxa using checkerboard DNA-DNA hybridization. Significance of changes in mean counts, prevalence and proportions of bacterial species over time in both supra and subgingival samples were determined using the Quads test and adjustedfor multiple comparisons. Results: Mean % of sites exhibiting plaque, gingival redness and BOP were significantly reduced during the course of the study. Significant decreasesin mean counts were observed in both supra and subgingival samples. Mean total DNA probe counts (x 10(5), +/- SEM) at baseline, 3, 6 and 12 months were: 133 +/- 19, 95 +/- 25, 66 +/- 6, 41 +/- 6 (p<0.001) for supragingival samples and 105 +/- 22, 40' +/- 10, 19 +/- 4 13 +/- 3 (p<0.001) for subgingival samples. Mean counts of 22 of 40 and 34 of 40 species tested were significantly reduced in the supra and subgingival samples respectively over themonitoring period. For example, mean counts of Porphyromonas gingivalis x 10(5) at baseline, 3, 6 and 12 months in the subgingival plaque samples were 2.0 +/- 0.4, 0.5 +/- 0.2, 0.6 +/- 0.3, 0.3 +/- 0.1 (p<0.001); Bacteroidesforsythus 2.0+/-0.6, 0.4+/-0.1, 0.4+/-0.2, 0.1+/-0.2 (p<0.001); Treponema denticola 3.4 +/- 1.1, 0.8 +/- 0.3, 0.4 +/- 0.2, 0.3 +/- 0.3 (p<0.01). Similar reductions were seen in supragingival plaque samples. While counts weremarkedly reduced by professional plaque removal, the proportion and prevalence of the 40 test species were marginally affected. Conclusions: weekly professional supragingival plaque removal profoundly diminished counts of both supra- and subgingival species creating a microbial profile comparable to that observed in periodontal health. This profile was maintained at the final monitoring visit, 9 months after completion of therapy.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 14:01:09