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The presence of high SARS-coronavirus 2 (SARS-CoV-2) titres in saliva may result in transmission of the virus and increase the risk of COVID-19 infection. This is particularly important as significant amounts of aerosols are generated during dental procedures, posing risk to dental care personnel and patients. Thus, reducing the titres of SARS-CoV-2 in the saliva of infected patients could be one of the key approaches to reduce the risk of COVID-19 transmission during dental procedures. In this randomised control trial, the efficacy of three commercial mouth-rinse viz. povidone-iodine (PI), chlorhexidine gluconate (CHX) and cetylpyridinium chloride (CPC), in reducing the salivary SARS-CoV-2 viral load in COVID-19 positive patients were compared with water. A total of 36 COVID-19 positive patients were recruited, of which 16 patients were randomly assigned to four groups— PI group (n=4), CHX group (n=6), CPC group (n=4) and water as control group (n=2). Saliva samples were collected from all patients at baseline and at 5 min, 3 h and 6 h post-application of mouth-rinses/water. The samples were subjected to SARS-CoV-2 RT-PCR analysis. The fold change of Ct values were significantly increased in CPC group at 5 minutes and 6 h time points (p

1 , Elzbieta Tomaszewska 1 , Zygmunt Muszynski 2 , Maria Ciupinska Abstract Introduction: Neoplastic ulcers are chronic and, most often, irreversible lesions caused by proliferation of tumor cells infiltrating and damaging skin tissues. The treatment of neoplastic ulcers is a very difficult and time-consuming process. So, is very important to find methods of controlling this type of chronic wounds. Aim: To evaluate the efficiency of monitored treatment of neoplastic ulcers by means of providing moist wound envi - ronment dressings and antiseptic to the group of patients with an advanced stage of tumor, with particular focus on the impact of the treatment applied on the clinical condition of the ulcers; to evaluate the impact of the treat - ment applied on the dynamics of bacterial flora in neoplastic ulcers, with particular focus on the presence of alarm pathogens; to conduct a risk analysis of the occurrence of local and systemic complications during treatment. Material and methods: This was a prospective pilot clinical study of 30 patients with malignant ulcers, 13 male and 17 female aged from 24 to 92 years treated with octenidine antiseptic and dressing set for 3 weeks. The wounds were clinically assessed for the changes of amount of necrotic tissue, exudate level and type, malodour and pain level during treatment. At the baseline and after 3 weeks of treatment, the wounds were swabbed for microbiological assessment. Results: The used scheme of treatment is efficient and brings clinical improvement in all treated ulcers. During the 3-week treatment, reduction of necrotic tissue, decrease in the level of exudate, pain and malodour was observed in all patients ( p < 0.05). High activity of octenidine against Gram(-) and Gram(+) bacteria was observed. The use of octenidine dihydrochloride correlated with a progressing eradication of multiresistant strains and alarm pathogens ( p < 0.001). No serious adverse effects or significant symptoms of intolerance of the applied treatment were observed.

[ES] Objetivo: Sintetizar la evidencia disponible sobre el uso de antisépticos y desinfectantes ante la infección de COVID-19. Método: Búsqueda bibliográfica en las principales bases de datos (WOS, CCC, DIIDW, KJD, MEDLINE, RSCI, SCIELO, PubMed, BMJ Best Practice, Cochrane Library, UptoDate) y en web de organismos oficiales en marzo de 2020, mediante descriptores y truncamientos. La búsqueda se limitó a revisiones publicadas entre 2016-2020. Resultados: Se identificaron 36 documentos (sin duplicados) de los que se seleccionaron, por pertinencia y especificidad 17, a los que se añadió un documento de lectura de la bibliografía. En los documentos finalmente utilizados, no se localizaron evidencias, pero sí experiencias y recomendaciones de interés, destacando la importancia de la desinfección del material, del ambiente y de manera muy significativa de las manos. Conclusión: No se aprecian claras evidencias, ni se identifican claras recomendaciones de usar uno u otro antiséptico, aunque se resalta la acción del hipoclorito de sodio, el etanol y el peróxido de hidrógeno frente a otros como el cloruro de benzalconio, el digluconato de clorhexidina, la povidona yodada y el alcohol etílico diluido. Especialmente se da importancia a utilizarlos en la higiene de manos, el uso de equipos de protección y de la desinfección del entorno. [EN] Objective: To synthesize the available evidence on the use of antiseptics and disinfectants in the face of VIDOC-19 infection Method: Bibliographic search in the main databases (WOS, CCC, DIIDW, KJD, MEDLINE, RSCI, SCIELO, PubMed, BMJ Best Practice, Cochrane Library, UptoDate) and on the web of official bodies in March 2020, using descriptors and truncations. The search was limited to reviews published between 2016-2020. Results: Thirty-six papers were identified (no duplicates) of which 17 were selected for relevance and specificity and one paper was added from the literature review. In the documents finally used, no evidence was located, but experiences and recommendations of interest were found, highlighting the importance of material, environmental and, very significantly, hand disinfection. Conclusion: There is no clear evidence, nor are there clear recommendations for the use of one or another antiseptic, although the action of sodium hypochlorite, ethanol and hydrogen peroxide is highlighted in comparison to others such as benzalkonium chloride, chlorhexidine digluconate, povidoeyodine and diluted ethyl alcohol. Particular importance is attached to their use in hand hygiene, the use of protective equipment and environmental disinfection. Sí

This article, based on GNEAUPP Technical Paper No. VIII, updates some concepts related to antimicrobials and adds new therapeutic tools to prevent and fight against one of the most important factors that prevent wound healing: problems related to microorganisms, classically infection and now also the impact of biofilms. The GNEAUPP's own evidence grading system is used, which classifies the strength of the recommendation as high, moderate or low. The antimicrobials analyzed in terms of their mode of action, commercial presentation, recommendations for use, contraindications and effectiveness on biofilm are: alcohol, chlorhexidine, sodium hypochlorite, octenidine, silver and iodophors. Also the effects of the so-called antibiofilm agents, although most of them have been performed in vitro. Finally, a series of recommendations are made to researchers to generate new evidence related to antimicrobials and their clinical applicability En este artículo, basado en el documento técnico n.º VIII del GNEAUPP, se actualizan algunos conceptos relacionados con los antimicrobianos y se añaden nuevas herramientas terapéuticas para prevenir y luchar frente a uno de los factores más importantes que impiden que cicatrice una herida: los problemas relacionados con los microorganismos, clásicamente la infección y, ahora, también el impacto de los biofilms. Se asume el sistema propio del GNEAUPP de gradación de la evidencia, que clasifica la fuerza de la recomendación en alta, moderada o baja. Los antimicrobianos analizados mediante su modo de actuación, presentación comercial, recomendaciones de uso, contraindicaciones y efectividad sobre el biofilm son: el alcohol, la clorhexidina, el hipoclorito sódico, la octenidina, la plata y los yodóforos. También los efectos de los llamados agentes antibiofilm, aunque la mayoría se han realizado in vitro. Para finalizar, se realizan una serie de recomendaciones dirigidas a los investigadores para generar nuevas evidencias relacionadas con los antimicrobianos y su aplicabilidad clínica