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. 2021 Jul 23:18:25.
doi: 10.18502/fid.v18i25.6935. eCollection 2021.

Bacterial Colonization on Different Suture Materials Used in Oral Implantology: A Randomized Clinical Trial

Nima Nadafpour  1 , Mostafa Montazeri  2 , Mehrdad Moradi  3 , Sina Ahmadzadeh  4 , Ardavan Etemadi  1   5
Affiliations

Bacterial Colonization on Different Suture Materials Used in Oral Implantology: A Randomized Clinical Trial

Nima Nadafpour et al. Front Dent. .

Abstract

Objectives: This study aimed to compare the colonization of Enterococcus faecalis (E. faecalis), Escherichia coli (E. coli), Streptococcus mutans (S. mutans) and Staphylococcus aureus (S. aureus) isolated from the oral cavity on different suture materials used in oral implantology. Materials and Methods: Patients scheduled for implant surgery were included in this study. After flap approximation, the surgical site was sutured using silk, nylon, polyglactin 910 (Vicryl®) and triclosan-coated polyglactin 910 (Vicryl® Plus) sutures in a randomized order. Seven days after surgery, the sutures were removed and incubated in bile esculin agar (for E. faecalis), MacConkey agar (for E. coli), mitis salivarius agar (for S. mutans), and mannitol salt agar (for S. aureus) at 37°C for 24 h. The colonies were then counted. Data were analyzed using the Kruskal-Wallis and Mann-Whitney U tests. Results: Vicryl® sutures showed the highest accumulation of E. faecalis, followed by Vicryl® Plus, nylon, and silk. There was no significant difference between nylon and silk (P=0.5) or between Vicryl® and Vicryl® Plus (P=0.4). Vicryl® Plus sutures showed the highest accumulation of E. coli followed by Vicryl®, silk and nylon (P<0.01). Vicryl® sutures showed the highest accumulation of S. mutans, followed by Vicryl® Plus, silk, and nylon. Vicryl® Plus sutures showed the highest accumulation of S. aureus, followed by Vicryl®, nylon, and silk. Conclusion: Nylon sutures showed the least microbial accumulation. Vicryl® and triclosan-coated Vicryl® Plus sutures had no advantage over the commonly used silk sutures in decreasing the number of bacteria.

Keywords: Bacteria; Dental Implants; Enterococcus faecalis; Escherichia coli; Nylons; Polyglactin 910; Silk; Staphylococcus; Streptococcus; Sutures.

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Figures

Fig. 1
Fig. 1
Intraoral photograph of a patient scheduled for implant surgery. Two dental implants were inserted in each side of the mandible. Wound approximation was achieved with (A) black 4-0 silk, (B) 4-0 Vicryl®, (C) 4-0 Nylon, and (E) 4-0 Vicryl Plus® sutures. Additional nylon sutures were used to prevent the Vicryl Plus® suture from affecting other suture materials (D). The left mandible was sutured with black 4-0 silk (not included in the study)
Fig. 2
Fig. 2
Different bacterial culture media used in the study: (A) MacConkey agar for Escherichia coli, (B) esculin agar for Enterococcus faecalis, (C) Mitis salivarius agar for Streptococcus mutans, and mannitol salt agar for Staphylococcus aureus culturing.
Fig. 3
Fig. 3
Comparison of microbial count (CFUs/ml ×103) among different types of suture threads
See this image and copyright information in PMC

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