Supportive periodontal care with or without subgingival instrumentation: Microbiological results of a 2-year randomized clinical trial.

Autor: Angst PDM; Conservative Dentistry Department, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil., Van der Velden U; Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, VU University Amsterdam, Amsterdam, The Netherlands., Susin C; Division of Comprehensive Oral Health - Periodontology, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA., Gomes SC; Conservative Dentistry Department, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Jazyk: angličtina
Zdroj: Journal of clinical periodontology [J Clin Periodontol] 2024 Oct; Vol. 51 (10), pp. 1302-1310. Date of Electronic Publication: 2024 Jul 02.
DOI: 10.1111/jcpe.14038
Abstrakt: Aim: To compare the subgingival microbiota of patients receiving supportive periodontal care (SPC) with and without subgingival instrumentation, over 2 years.
Materials and Methods: This study was a randomized clinical trial that included 62 participants (50.97 ± 9.26 years old; 40 females) who completed non-surgical periodontal therapy. Participants were randomly assigned to receive oral prophylaxis with oral hygiene instructions alone (test) or in combination with subgingival instrumentation (control) during SPC. Pooled subgingival biofilm samples were obtained from four sites per patient at SPC baseline and at 3, 6, 12, 18, and 24 months. Real-time polymerase chain reaction was used for absolute quantification of Eubacteria and the target bacteria Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola. Data were analysed using generalized estimating equations, taking into consideration the clustering of observations within individuals.
Results: No significant differences were found between the experimental groups regarding the mean counts of Eubacteria and target bacteria, as well as the periodontal parameters at the sampled sites. Although significant variability in bacterial counts was present during SPC, all counts after 2 years were not statistically different from those at baseline. Bacterial counts were associated with the presence of plaque, bleeding on probing, mean probing depth ≥3 mm, and follow-up period.
Conclusions: SPC with or without subgingival instrumentation can result in comparable subgingival microbiological outcomes.
Clinical Trial Registration: clinicaltrials.gov: NCT01598155 (https://clinicaltrials.gov/study/NCT01598155?intr=supragingival%20control&rank=4#study-record-dates).
(© 2024 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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