Premium
Subgingival bacterial recolonization after scaling and root planing in smokers with chronic periodontitis
Author(s) -
Feres M,
Bernal MAC,
Matarazzo F,
Faveri M,
Duarte PM,
Figueiredo LC
Publication year - 2015
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/adj.12225
Subject(s) - dentistry , scaling and root planing , periodontitis , medicine , chronic periodontitis , orthodontics
Background The aim of this study was to compare subgingival bacterial recolonization patterns after scaling and root planing in current smokers and non‐smokers. Methods 15 smokers and 15 non‐smokers with chronic periodontitis received scaling and root planing in six visits lasting one hour each, over a period of 21 days. Clinical monitoring was performed at baseline and 180 days, and microbiological monitoring was performed at baseline, immediately after scaling and root planing (Day 0) and at 42, 63 and 180 days post‐therapy. Subgingival plaque samples were analysed by checkerboard DNA – DNA hybridization. Results An improvement in clinical condition was observed for smokers and non‐smokers; however, non‐smokers showed a greater reduction in mean clinical attachment level in intermediate sites in comparison with smokers (p < 0.05). At Day 0, there was a significant reduction in the mean counts of the three pathogens from the red complex, Eubacterium nodatum and Parvimonas micra only in non‐smokers (p < 0.05). There was a significant increase in the proportion of host‐compatible species in non‐smokers and smokers from baseline to 180 days post‐therapy (p < 0.05). However, a significant decrease in the pathogenic species was observed only in non‐smokers. Conclusions Smokers were more susceptible to the re‐establishment of a pathogenic subgingival biofilm than non‐smokers.