Effect of a denture cleanser on the concentration of volatile sulphur compounds and denture biofilm in institutionalised elderly.
OBJECTIVE
To determine the effectiveness of a denture cleanser in reducing the concentration of volatile sulphur compounds (VSC) and its antimicrobial action.


BACKGROUND
Micro-organisms from the denture biofilm can cause local and systemic disease and halitosis. Denture cleansers are important adjuncts in oral care, but there is limited investigation on their effect in malodour compounds.


METHODS
Nineteen institutionalised elderly who wore at least an upper denture were selected; their VSC concentrations were measured and the denture biofilm was collected. In phase 1, the subjects wore their old denture and data were collected before (B0) and after 7(A1), 14(A2), 28(A3) days of continuous daily use of the denture cleanser. In phase 2, new dentures were inserted and measurements were made at 30(A1.1), 60(A2.2), 90(A3.3) days of treatment.


RESULTS
The VSC concentration increased from B0 to A1 (p<0.05), but no differences were found for the others intervals of times. Total micro-organism data did not show a statistical difference between times in Phase I, but in Phase II, there was a statistical difference (p<0.05) and a progressive re-colonisation was observed.


CONCLUSIONS
Within the limits of this study, it was concluded that the denture cleanser had no antimicrobial effect and VSC levels were not reduced.
Piracicaba Dental School, State University of Campinas, Sao Paulo, Brazil.
Viviane Maia Barreto
VM
de Oliveira
Sílvia Carneiro
SC
de Lucena
Renata Cunha Matheus Rodrigues
RC
Garcia
Altair Antoninha
AA
Del Bel Cury
D000368:Aged; D000369:Aged, 80 and over; D001419:Bacteria / Q000254:growth & development; D058491:Bacterial Load; D018441:Biofilms / Q000187:drug effects*; D001881:Borates / Q000627:therapeutic use; D003820:Denture Cleansers / Q000627:therapeutic use*; D003827:Denture, Complete, Upper / Q000382:microbiology; D003778:Dentures; D005260:Female; D005500:Follow-Up Studies; D006209:Halitosis / Q000517:prevention & control*; D006801:Humans; D007326:Institutionalization; D008134:Long-Term Care; D008297:Male; D008875:Middle Aged; D013457:Sulfur Compounds / Q000032:analysis*
D001881:Borates; D003820:Denture Cleansers; D013457:Sulfur Compounds; C027707:sodium perborate