|0548 Evaluation of dental implants sterilization efficacy|
M.R. COSTA, R. SARTORI, R.S. FAEDA, D.M.P. SPOLIDORIO, R.A.C. MARCANTONIO, and L.G. VAZ, UNESP - Săo Paulo State University, Araraquara, Brazil|
Objectives: the purpose of this study was to analyze the effectiveness of dental implant sterilization by means of microbial analysis. Methods: sixty 3,75 x 15mm dental implants (n=20/brand) were used from the following brands: Neodent (Curitiba-Brasil; lots numbers L11447 and L14217), 3i Implant Innovations Inc (Palm Beach Gardens – USA; lot number 391535) and Nobel Biocare AB (Götemborg, Sweden; lot numbers 650473 and 649657). After the opening of the implant packages in a laminar flow chamber, the implants were covered with sterile swabs that were introduced in separate test tubes containing BHI broth (37C, 14 days). Two positive controls were used (saliva swab and hand swab) and two negative controls (sterile swab and the broth itself without the swab). During the 14-day period, the test tubes were checked for cloudiness. In addition, if any of the test tubes were thought to be contaminated, a sample was taken from inside the test tube to be cultured in BHI agar (37C, 48 hours). Results: during the 14-day observation period, none of the swabs used to wipe the implants showed signs of bacterial growth. Furthermore, only the positive controls showed signs of cloudiness in the BHI broth. Conclusion: the results obtained showed that the implants aforementioned were effectively sterilized; therefore the method of sterilization used by the manufacturers was proven effective.
|Seq #77 - Diagnostics and Material Characterization|
3:00 PM-4:00 PM, Thursday, 9 March 2006 Dolphin Hotel Pacific Hall