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Microbial leakage through the implant–abutment interface of morse taper implants in vitro
Author(s) -
Aloise João Pedro,
Curcio Ricardo,
Laporta Marcia Zorello,
Rossi Liliane,
Da Silva Adriana Madeira Álvares,
Rapoport Abrão
Publication year - 2010
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2009.01837.x
Subject(s) - leakage (economics) , implant , materials science , dentistry , biomedical engineering , composite material , surgery , medicine , economics , macroeconomics
Objectives: The aim of this study was to determine and compare the frequency of bacterial leakage of Streptococcus sanguinis biotype II along the implant–abutment interface between two systems of morse taper dental implants. Different methods of activation of the taper abutments were used: tapped‐in (Bicon © ) and screwed‐in (Ankylos ® ). Materials and methods: Twenty sterile assemblies were used and attached, 10 Bicon © and 10 Ankylos ® implants, according to manufacturers' specifications. They were then totally immersed within 20 test tubes containing a sterile nutrient solution brain–heart infusion (BHI). The internal part of the 20 implants was previously inoculated with 0.1 μl of S. sanguinis II (ATCC 10557) and then connected to the respective abutments. The assemblies were incubated under anaerobic conditions for 14 days in an autoclave at 37°C. They were monitored daily for solution cloudiness resultant from microbial leakage on the interface of the assemblies. For statistical analysis, the Fisher test was applied and significance was assigned at the 5% level. Results: There was solution cloudiness, indicating the finding of bacterial growth inside two Bicon © assemblies and two Ankylos ® assemblies 48 h after incubation. Microbial leakage was further substantiated by testing the suspension for the presence of Streptococcus sp. None of the sterility controls were contaminated. The frequency of bacterial leakage along the implant–abutment interface, with the two different morse taper implant systems, was 20% of the assemblies of each system. There were no statistical differences between them. Conclusion: Irrespective of which of the two morse taper implant connection systems of activation was analyzed, tapped‐in (Bicon © ) or screwed‐in (Ankylos ® ), this in vitro experiment showed bacterial leakage along the implant–abutment interface. To cite this article:
Aloise JP, Curcio R, Laporta MZ, Rossi L, da Silva AMÁ, Rapoport A. Microbial leakage through the implant–abutment interface of morse taper implants in vitro .
Clin. Oral Impl. Res . 21 , 2010; 328–335.
doi: 10.1111/j.1600‐0501.2009.01837.x