Microbial accumulation on different suture materials following oral surgery: a randomized controlled study
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The aim of the study was to compare bacterial accumulation on different suture materials following oral surgery.
Patients scheduled for implant or periodontal surgery were included in the study. Upon flap closure, four different sutures were placed in a randomized sequence—silk, coated polyglactin, nylon, and polyester. Ten days following surgery, the sutures were removed and incubated in aerobic as well as anaerobic conditions for 7 days and colony-forming units (CFUs) were calculated. Association between bacterial accumulation and periodontal diagnosis, type of surgery, and antibiotic treatment were also tested.
All sutures in all patients were found to contain bacteria. Overall, nylon sutures showed significantly lower CFU levels compared to silk, coated polyglactin, and polyester sutures. The type of surgery (implant vs. periodontal surgery) did not significantly influence bacterial accumulation. Also, periodontal diagnosis had little impact on CFU counts. Interestingly, post-surgical antibiotic treatment also had only a minor effect on bacterial accumulation on the various sutures.
The results indicate that the monofilamentous nylon sutures showed less microbial accumulation than the other tested materials that were all braided. This effect may be due to material qualities as well as suture macrostructure. Type of surgery, periodontal diagnosis, and antibiotic consumption have little effect on bacterial accumulation of sutures.
The study provides the microbial profile of commonly used sutures and may assist in suture selection during clinical procedures.
KeywordsNylon suture Coated polyglactin suture Silk suture Polyester suture
The study was self-funded. Shvadent Ltd., Israel, contributed the sutures to the study.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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