chemical decontamination
Recently Published Documents


TOTAL DOCUMENTS

176
(FIVE YEARS 28)

H-INDEX

14
(FIVE YEARS 3)

2021 ◽  
Vol 15 (58) ◽  
pp. 67-75
Author(s):  
Vitor Santana Amorim ◽  
Natan Filipe Ribeiro Coqueiro ◽  
Milton D’Almeida Ferreira Neto

Resumo: A identificação e o tratamento da infecção ao redor do implante é uma etapa essencial na manutenção do implante osseointegrativo e isso reflete na vida útil da reabilitação. O principal objetivo do tratamento da peri-implantite é a utilização de métodos de descontaminação mecânica e química para eliminar a carga bacteriana na superfície do implante. O biofilme pode ser removido por métodos não cirúrgicos ou cirúrgicos. Nos casos mais graves, geralmente é necessário tratamento cirúrgico, cujo objetivo é corrigir o defeito ósseo existente, combinado com a aplicação do enxerto, para regenerar o tecido ósseo perdido no processo inflamatório. O propósito deste estudo é realizar uma revisão de literatura tendo como o tema preservação em próteses implantossuportadas: peri-implantite, a fim de guiar a conservação das reabilitações orais. Além de buscar maiores informações acerca do desenvolvimento da doença peri-implantar, bem como sua ligação com a doença periodontal e os fatores que contribuem para seu desenvolvimento. Para tanto, foram utilizados descritores como: “peri-implantite", "manutenção de implantes" e “ossointegração” nas bases de dados: Pubmed, Scielo, google acadêmico e Lilacs. Para possibilitar um melhor resultado, foram organizados tópicos para uma discussão final, sendo eles: conceito, etiologia, diagnóstico e tratamento. Foram encontradas dificuldades na manutenção dos implantes e a necessidade de se descrever o melhor planejamento para uma melhoria nos protocolos clínicos de preservação a fim de obter-se excelência nos desfechos clínicos.Abstract: The identification and treatment of infection around the implant is an essential step in the maintenance of the osseointegrative implant and this reflects on the lifetime of the rehabilitation. The main objective of peri-implantitis treatment is the use of mechanical and chemical decontamination methods to eliminate the bacterial load on the implant surface. Biofilm can be removed by non-surgical or surgical methods. In more severe cases, surgical treatment is usually necessary, the aim of which is to correct the existing bone defect, combined with the application of a graft, to regenerate the bone tissue lost in the inflammatory process. The purpose of this study is to conduct a literature review with the theme of preservation in implant-supported prostheses: peri-implantitis, in order to guide the conservation of oral rehabilitations. In addition to seeking more information about the development of peri-implant disease, as well as its connection with periodontal disease and the factors that contribute to its development. For this purpose, descriptors such as: “peri-implantitis”, “implant maintenance” and “bone integration” were used in the following databases: Pubmed, Scielo, academic Google and Lilacs. final discussion, namely: concept, etiology, diagnosis, and treatment. Difficulties were found in the maintenance of implants and the need to describe the best planning for an improvement in clinical preservation protocols in order to obtain excellence in clinical outcomes. Plaque control maintains the health of the soft tissue-implant interface.Keywords: Dental implants; Peri-implantitis; Bacterial plaque. 


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuki Ichioka ◽  
Jan Derks ◽  
Gunnar Dahlén ◽  
Tord Berglundh ◽  
Lena Larsson

AbstractPeri-implant diseases are caused by bacterial biofilm colonizing implant surfaces. Prevention and management of peri-implant mucositis and peri-implantitis rely on effective biofilm removal. This study aimed to evaluate biofilm removal and cytocompatibility following chemo-mechanical surface decontamination of biofilm-coated titanium discs. Biofilm-coated (Streptococcus gordonii) discs, with either non-modified (smooth) or modified (rough) surfaces, were instrumented using a sterile gauze soaked in one out of four solutions: saline (NaCl), alkaline electrized water (AEW), citric acid (CA) or N-acetyl-l-cysteine (NAC). Non-contaminated, untreated titanium discs served as controls (C). Residual deposits (bacteria and gauze fibers) and cytocompatibility for osteoblast-like cells were evaluated using SEM and immunofluorescence. Cytotoxicity was assessed using WST-8 assay and immunofluorescence. All protocols were equally effective in removing bacteria from smooth surfaces, while AEW and CA were found to be superior at rough surfaces. AEW and NAC were superior in promoting cytocompatibility over NaCl. NAC and CA had a strong cytotoxic effect on osteoblast-like and fibroblast cells. In conclusion, AEW may be beneficial in the decontamination of implant surfaces, effectively removing bacterial biofilm and restoring cytocompatibility.


2021 ◽  
Vol 137 ◽  
pp. 103778
Author(s):  
Sonal Maroo ◽  
Chandramohan Palogi ◽  
Srinivasan Madapuzi Parthasarathy ◽  
Rangarajan Srinivasan

2021 ◽  
Vol 111 ◽  
pp. 117-124
Author(s):  
P. Kumkrong ◽  
L. Scoles ◽  
Y. Brunet ◽  
S. Baker ◽  
P.H.J. Mercier ◽  
...  

Author(s):  
Zarina Brune ◽  
Cyrus E. Kuschner ◽  
Joseph Mootz ◽  
Karina W. Davidson ◽  
Robert C. F. Pena ◽  
...  

Background: Health care systems in the United States are continuously expanding and contracting spaces to treat patients with coronavirus disease 2019 (COVID-19) in intensive care units (ICUs). As a result, hospitals must effectively decontaminate and contain severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in constructed and deconstructed ICUs that care for patients with COVID-19. We assessed decontamination of a COVID-19 ICU and examined the containment efficacy of combined contact and droplet precautions in creating and maintaining a SARS-CoV-2–negative ICU “antechamber”. Methods: To examine the efficacy of chemical decontamination, we used high-density, semi-quantitative environmental sampling to detect SARS-CoV-2 on surfaces in a COVID-19 ICU and COVID-19 ICU antechamber. Quantitative real-time polymerase chain reaction was used to measure viral RNA on surfaces. Viral location mapping revealed the distribution of viral RNA in the COVID-19 ICU and COVID-19 ICU antechamber. Results were further assessed using loop-mediated isothermal amplification. Results: We collected 224 surface samples pre-decontamination and 193 samples post-decontamination from a COVID-19 ICU and adjoining COVID-19 ICU antechamber. We found that 46% of antechamber objects were positive for SARS-CoV-2 pre-decontamination despite the construction of a swinging door barrier system, implementation of contact precautions, and installation of high-efficiency particulate air filters. The object positivity rate reduced to 32.1% and viral particle rate reduced by 95.4% following decontamination. Matched items had an average of 432.2 ± 2729 viral copies/cm2 pre-decontamination and 19.2 ± 118 viral copies/cm2 post-decontamination, demonstrating significantly reduced viral surface distribution (p < 0.0001). Conclusions: Environmental sampling is an effective method for evaluating decontamination protocols and validating measures used to contain SARS-CoV-2 viral particles. While chemical decontamination effectively removes detectable viral RNA from surfaces, our approach to droplet/contact containment with an antechamber was not highly effective. These data suggest that hospitals should plan for the potential of aerosolized virions when creating strategies to contain SARS-CoV-2.


2021 ◽  
Vol 14 (1) ◽  
pp. 28-38
Author(s):  
V. V. Shelenkova ◽  
◽  
T. A. Kulagina ◽  

This article analyzes the data on chemical decontamination methods dealing with radioactively contaminated surfaces. It considers the composition of solutions most commonly used for decontamination purposes. Numerical data are presented to illustrate the effectiveness of various decontamination methods. The paper considers an experiment on the decontamination of stainless steel samples with water following a cavitation treatment. The study reveals a dependence between the decontamination efficiency and the treatment time of the contaminated surface with a decontamination solution based on cavitation-activated water, which appears to be comparable with the results of the one involving an alkaline solution.


Sign in / Sign up

Export Citation Format

Share Document