Background: Aim of this single center cross-sectional study was to investigate oral behavior, dental, periodontal and microbiological findings in patients undergoing hemodialysis (HD) and after kidney transplantation (KT). Methods: Patients undergoing HD for end-stage renal failure and after KT were investigated. Oral health behavior was recorded using a standardized questionnaire, e.g. dental behavior, tooth brushing, oral hygiene aids. Oral investigation included screening of oral mucosa, dental findings (DMF-T) and periodontal situation (Papilla bleeding index [PBI] periodontal probing depth [PPD] and clinical attachment loss [CAL]). Additionally, microbiological analysis of subgingival biofilm samples (PCR) was performed. Statistical analysis: Student’s t-test or Mann–Whitney-U-test, Fisher’s exact test (α = 5 %). Results: A total of 70 patients (HD: n = 35, KT: n = 35) with a mean age of 56.4 ± 11.1 (HD) and 55.8 ± 10.9 (KT) years were included. Lack in use of additional oral hygiene (dental floss, inter-dental brush) was found. KT group presented significantly more gingivial overgrowth (p = 0.01). DMF-T was 19.47 ± 5.84 (HD) and 17.61 ± 5.81 (KT; p = 0. 21). Majority of patients had clinically moderate and severe periodontitis; showing a need for periodontal treatment of 57 % (HD) and 71 % (KT; p = 0.30). Significantly higher prevalence of Parvimonas micra and Capnocytophaga species in the HD group were found (p < 0.01). Conclusion: Periodontal treatment need and lack in oral behavior for both groups indicate the necessity of an improved early treatment and prevention of dental and periodontal disease, e.g. in form of special care programs. Regarding microbiological findings, no major differences between KT and HD patients were found.

Background: Aim of this single center cross-sectional study was to investigate oral behavior, dental, periodontal and microbiological findings in patients undergoing hemodialysis (HD) and after kidney transplantation (KT). Methods: Patients undergoing HD for end-stage renal failure and after KT were investigated. Oral health behavior was recorded using a standardized questionnaire, e.g. dental behavior, tooth brushing, oral hygiene aids. Oral investigation included screening of oral mucosa, dental findings (DMF-T) and periodontal situation (Papilla bleeding index [PBI] periodontal probing depth [PPD] and clinical attachment loss [CAL]). Additionally, microbiological analysis of subgingival biofilm samples (PCR) was performed. Statistical analysis: Student’s t-test or Mann–Whitney-U-test, Fisher’s exact test (α = 5 %). Results: A total of 70 patients (HD: n = 35, KT: n = 35) with a mean age of 56.4 ± 11.1 (HD) and 55.8 ± 10.9 (KT) years were included. Lack in use of additional oral hygiene (dental floss, inter-dental brush) was found. KT group presented significantly more gingivial overgrowth (p = 0.01). DMF-T was 19.47 ± 5.84 (HD) and 17.61 ± 5.81 (KT; p = 0. 21). Majority of patients had clinically moderate and severe periodontitis; showing a need for periodontal treatment of 57 % (HD) and 71 % (KT; p = 0.30). Significantly higher prevalence of Parvimonas micra and Capnocytophaga species in the HD group were found (p < 0.01). Conclusion: Periodontal treatment need and lack in oral behavior for both groups indicate the necessity of an improved early treatment and prevention of dental and periodontal disease, e.g. in form of special care programs. Regarding microbiological findings, no major differences between KT and HD patients were found.

Ziel dieser Publikation soll es sein, der/m Behandler/in fundiertes Grundwissen bzgl. des Ölziehens zu vermitteln. Darüber hinaus wird die aktuelle Studienlage dargestellt, es werden Trends aufgezeigt und das Risiko der Lipidpneumonie erläutert. Die Autoren kommen zu dem Ergebnis, dass es derzeit geringe Evidenz für einen positiven Nutzen des Ölziehens gibt, sodass weiterführende Studien auf diesem Gebiet notwendig sind. Über das sehr geringe Risiko einer Lipidpneumonie bei nicht korrekter Anwendung sollten die Patientinnen und Patienten aufgeklärt werden. / This publication should provide the practitioner with sound basic knowledge about oil pulling. In addition, the authors present the current study situation, show trends and explain the risk of lipoid pneumonia. The limited evidence to date from clinical trials suggest that oil pulling may have beneficial effects, therefore more studies are necessary to prove beneficial effects on orodental hygiene. Furthermore, patients should be informed about the risk of lipoid pneumonia if used incorrectly.

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