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- Title
Evaluation of Bacterial Leakage in Platform-Switching Dental Implant with Morse Taper Connection Under Thermocycling and Loading Effects: In Vitro Study.
- Authors
Ellakany, Passent; Mahrous, Amr A.; Al Eraky, Doaa M.; Albarrak, Alanoud; AlJindan, Reem; Fouda, Shaimaa M.
- Abstract
Purpose: The aim of this study was to test in vitro the bacterial microleakage at the Morse taper implant-abutment connection with switched platform subjected to functional load and thermocycling. Materials and Methods: A total of 48 Morse taper implant-abutment connections with switched platforms (12 implants per group) were used. The abutments were attached to implants and presented in four groups: group 1, control; group 2, subjected to thermocycling; group 3, subjected to cyclic compressive loading; and group 4, subjected to thermocycling and cyclic compressive loading. All groups were then inoculated in Eppendorf tubes including three types of bacterial suspensions: Enterococcus faecalis, Staphylococcus aureus, and Pseudomonas aeruginosa for 7 and 14 days to detect possibility of bacterial infiltration from outside to the internal chamber of the implant. Results: Implants not exposed to cyclic loading and thermocycling (group 1) and those exposed to thermocycling (group 2) exhibited no infiltration of E faecalis, S aureus, and P aeruginosa from outside to the inner chamber of the implant, while infiltration of P aeruginosa was only observed in implants subjected to cyclic loading only (group 3) and those subjected to cyclic loading in conjunction with thermocycling (group 4). Conclusion: Microbial leakage at the implant-abutment connection is influenced by the applied load alone and in combination with thermocycling; however, E faecalis and S aureus did not leak at the implant-abutment connection even under these circumstances. Only P aeruginosa infiltrated inside the implant-abutment connection, which might be caused by its swarming motility.
- Subjects
DENTAL implants; DENTAL bonding; IN vitro studies; DENTAL abutments; ENTEROCOCCUS; STAPHYLOCOCCUS aureus; PSEUDOMONAS
- Publication
International Journal of Oral & Maxillofacial Implants, 2021, Vol 36, Issue 1, p68
- ISSN
0882-2786
- Publication type
Article
- DOI
10.11607/jomi.8424