hrvatski

Evaluacija antimikrobne učinkovitosti različitih vrsta materijala za brtvljenje mikropropusnosti na spoju abutmenta i implantata - mikrobiološka in vitro pilot studija

Periimplantitis is an inflammation that over time causes bone resorption which can lead to implant loss. There are different ways to treat and prevent peri-implant diseases. One of the ideas for a preventative measure is the use of micro-permeability sealing materials and antimicrobial materials to decontaminate the implant interface, thus preventing the colonization of microorganisms and their effect on periimplantitis. The aim of this study was to evaluate the antimicrobial efficacy and sealing quality of various types of micro- permeability sealant materials at the level of abutments-implant connection. The study used 30 titanium dental implants and abutments. Three test groups (different sealants) were formed, with six implants in each, with one positive control group (chlorhexidine (CHX) gel) and 1 negative control group (no sealants). The implants were removed from the original package under sterile conditions. Afterwards, they are fixed with a sterile holder to allow for firm rotating action and vertical position. Prior to abutment fixation, the implants were filled with sealing material depending on the group (Oxysafe, Gapseal, Flowseal, CHX gel). All implant / abutment assemblies were placed in suspension contaminated with S. aureus and C. albicans, 0.5 McFarland density solution. Implants were immersed over the implant- abutment connection level in the prepared solution for 7 days under aerobic conditions. The negative control group was immersed in the solution with out sealing material. After a 7- day incubation, samples were removed from the tubes using sterile forceps, immersed in 70% alcohol for up to 3 minutes, to prevent external contamination, and dried with sterile gauze. The sample assemblies were carefully disassembled. After disassembly, the internal surfaces of the implants were sampled with sterile paper sticks, which were then immersed in tubes containing sterile BHI solution. The cultures were grown on blood agar plates and incubated for 48 hours at 37 ° C. Subsequently, the bacterial colonies were identified and quantified. After data analysis, it was determined that even one week after incubation, none of the sealing materials completely sealed the implant-abutment connection.

dentalni implantati ; aPDT ; površina

Sažeci skupa: https://ascro.hr/fileadmin/user_upload/2019/Number_2019-4/12_abstracts_-_Dental_Implantology_2019-4.pdf

engleski

Antimicrobic efficiency evaluation of different types of micro-performance sealing materials at the level of abutment-implant connection – an microbiological and in vitro pilot study

Periimplantitis is an inflammation that over time causes bone resorption which can lead to implant loss. There are different ways to treat and prevent peri-implant diseases. One of the ideas for a preventative measure is the use of micro-permeability sealing materials and antimicrobial materials to decontaminate the implant interface, thus preventing the colonization of microorganisms and their effect on periimplantitis. The aim of this study was to evaluate the antimicrobial efficacy and sealing quality of various types of micro- permeability sealant materials at the level of abutments-implant connection. The study used 30 titanium dental implants and abutments. Three test groups (different sealants) were formed, with six implants in each, with one positive control group (chlorhexidine (CHX) gel) and 1 negative control group (no sealants). The implants were removed from the original package under sterile conditions. Afterwards, they are fixed with a sterile holder to allow for firm rotating action and vertical position. Prior to abutment fixation, the implants were filled with sealing material depending on the group (Oxysafe, Gapseal, Flowseal, CHX gel). All implant / abutment assemblies were placed in suspension contaminated with S. aureus and C. albicans, 0.5 McFarland density solution. Implants were immersed over the implant- abutment connection level in the prepared solution for 7 days under aerobic conditions. The negative control group was immersed in the solution with out sealing material. After a 7- day incubation, samples were removed from the tubes using sterile forceps, immersed in 70% alcohol for up to 3 minutes, to prevent external contamination, and dried with sterile gauze. The sample assemblies were carefully disassembled. After disassembly, the internal surfaces of the implants were sampled with sterile paper sticks, which were then immersed in tubes containing sterile BHI solution. The cultures were grown on blood agar plates and incubated for 48 hours at 37 ° C. Subsequently, the bacterial colonies were identified and quantified. After data analysis, it was determined that even one week after incubation, none of the sealing materials completely sealed the implant-abutment connection.

dental implants ; aPDT ; surface

Sažeci skupa: https://ascro.hr/fileadmin/user_upload/2019/Number_2019-4/12_abstracts_-_Dental_Implantology_2019-4.pdf