title: Full-mouth scaling and root planing in type 2 diabetic subjects: one-year microbiological outcomes.
abstract: BACKGROUND
  This study evaluated the microbiological effects of full-mouth (FM) and partial-mouth (PM) scaling and root planing (SRP) in type 2 diabetic subjects with chronic periodontitis (ChP), up to 12 months.
  
  
  METHODS
  Thirty-four type 2 diabetic subjects with ChP received either FMSRP (n = 17), in two sessions within two consecutive days, or PMSRP (n = 17) in four sessions within 21 days. Six subgingival biofilm samples per subject were analysed by checkerboard DNA-DNA hybridization for 40 bacterial species at baseline, 3 and 12 months.
  
  
  RESULTS
  Both therapies significantly reduced the levels of the red complex species up to 12 months (p < 0.05). The levels of three putative pathogens from the orange complex were significantly reduced in the FMSRP group, whereas a single orange complex species was significantly decreased in the PMSRP group (p < 0.05). Furthermore, the proportions of the host-compatible Actinomyces species were significantly increased in both groups at 3 and 12 months. No significant differences were observed between groups for the counts and proportions of the individual species and the proportions of microbial complexes at any time point (p > 0.05).
  
  
  CONCLUSIONS
  There were no differences in the bacterial species evaluated after FMSRP and PMSRP in the treatment of type 2 diabetic subjects with ChP, up to 12 months.
authors.affiliation: Department of Periodontology, Dental Research Division, Guarulhos University, São Paulo, Brazil.
authors.forename: L C
authors.initials: LC
authors.lastname: Figueiredo
authors.forename: D C
authors.initials: DC
authors.lastname: Souza
authors.forename: V R
authors.initials: VR
authors.lastname: Santos
authors.forename: T S
authors.initials: TS
authors.lastname: Miranda
authors.forename: M
authors.initials: M
authors.lastname: Feres
authors.forename: M
authors.initials: M
authors.lastname: Faveri
authors.forename: P M
authors.initials: PM
authors.lastname: Duarte
mesh_terms: D000328:Adult; D000368:Aged; D018441:Biofilms; D055113:Chronic Periodontitis / Q000453:epidemiology* / Q000382:microbiology / Q000628:therapy*; D015897:Comorbidity; D003773:Dental Plaque / Q000382:microbiology; D012534:Dental Scaling / Q000379:methods; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017622:Periodontal Attachment Loss / Q000628:therapy; D010514:Periodontal Pocket / Q000382:microbiology; D016745:Root Planing
keywords: Chronic periodontitis; diabetes mellitus; microbiology; periodontal disease