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Oral microbial colonization in laryngectomized patients as a possible cofactor of biofilm formation on their voice prostheses
Author(s) -
Bertl Kristina,
Zatorska Beata,
Leonhard Matthias,
RechenmacherStrauss Julia,
Roesner Imme,
SchneiderStickler Berit
Publication year - 2013
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/jcpe.12131
Subject(s) - biofilm , medicine , oral cavity , dentistry , dental plaque , voice prosthesis , larynx , bacteria , surgery , laryngectomy , biology , genetics
Aim Biofilm formation on voice prostheses, which are used for voice rehabilitation in laryngectomized patients, is a main cause of device failure. The aim of this study was to assess whether the presence of periodontal pathogens in the biofilm on voice prostheses is related to that in the oral cavity and associated with the periodontal status of the patients. Methods Thirty‐one laryngectomized patients were invited to participate, 13 of whom met exclusion criteria. The remaining 18 were classified according to the community periodontal index of treatment needs (community periodontal index of treatment needs ( CPITN ), grades 0–4). Biofilm samples from the oral cavity and voice prostheses were analysed by PCR‐based hybridization for 11 pathogens. Results All dentate patients required periodontal treatment ( CPITN ‐3: n = 4, CPITN ‐4: n = 8); the remaining six were edentulous. The diversity (i.e. number of bacterial species detected) of pathogens detected on the voice prostheses correlated significantly positively with the diversity of pathogens in the oral cavity and with clinical parameters. Furthermore, the diversity of pathogens differed significantly between dentate and edentulous patients. Conclusions Results emphasize the oral cavity as an important source of bacteria for biofilm formation on voice prostheses. Whether these pathogens reduce the lifetime of the device by increased biofilm formation and/or increase the risk of silicone deterioration requires further study.