Is It safe to reuse dental implant healing abutments sterilized and serviced by dealers of dental implant manufacturers? An in vitro sterility analysis

Cakan U., Delilbasi C., Er S., KIVANÇ M.

Implant Dentistry, vol.24, no.2, pp.174-179, 2015 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 2
  • Publication Date: 2015
  • Doi Number: 10.1097/id.0000000000000198
  • Journal Name: Implant Dentistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.174-179
  • Keywords: healing abutment, sterilization, dental implant, enterococci, reuse, ENTEROCOCCUS-FAECALIS, BIOFILM FORMATION
  • Anadolu University Affiliated: Yes


Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved.Purpose: This study was undertaken to investigate the sterility of used healing abutments sterilized and serviced by dealers of dental implant manufacturers. Materials and Methods: Sixty used but sterilized healing abutments in sealed sterilization pouches were obtained from 6 manufacturers unaware of the study design and equally grouped from A to F. The sterilization pouches were examined for perforation. The driver slots and screw grooves of healing abutments were examined for calculus and scratches under a ×5 LED magnifying lamp, without opening the pouches. Each abutment was immersed in brain heart infusion broth in test tubes and incubated. Results: Macroscopic observation of 57 healing abutments revealed dirty screw grooves (10.5%) and partially filled driver slots (5.2%). None of the group C, E, and F samples showed turbidity. Penicillium variabile was morphologically identified in 3 abutments of group A. Enterococcus faecalis and E faecium were detected in 1 abutment each of groups B and D, respectively. Conclusion: Reuse of healing abutments can be cost effective in dental practice. However, used abutments sterilized and serviced by dental implant dealers might be a source of cross-infection. They should therefore be cleaned and resterilized before reuse as a precaution.