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1.
Br Dent J ; 236(6): 492, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38519692
2.
BMC Oral Health ; 23(1): 867, 2023 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-37968643

RESUMO

OBJECTIVES: This retrospective study examined the dental unit waterline (DUWL) testing practices of Saskatchewan dental clinics over a period of 11 years, with an emphasis on their responses after identification of high microbial levels. MATERIALS AND METHODS: Dental clinics (n = 137) aseptically collected samples of output water from their air/water syringes, handpieces, and ultrasonic scaler lines using Sigma-Aldrich® waterline test kits and delivered them to a quality assurance laboratory. Tests were incubated for seven days at room temperature, and those with heterotrophic plate counts > 500 CFU/mL were reported as failures. Statistical analyses were performed on a database containing 4,093 test results. RESULTS: Participating clinics submitted an average of 11 DUWL tests per year. Overall, 21% of tests failed, and a moderate positive association (rs=.52, p < 0.001) was found between clinics' DUWL testing frequency and failure rate. Only 7% of failed DUWL tests were followed up by collection of a subsequent test within two weeks, of which 47% still exceeded the 500 CFU/mL threshold. CONCLUSIONS: Our findings demonstrate an association between DUWL testing frequency and detection of unacceptable microbial levels, along with infrequent retesting and often-inadequate intervention after a failed test. This suggests the need for further efforts at the regulatory and educational levels to maintain adequate water quality during dental treatment. CLINICAL RELEVANCE: Procedural water can become contaminated in DUWLs and endanger patients. Regular DUWL monitoring and evidence-based interventions to treat contaminated systems are necessary to safeguard patient health.


Assuntos
Biofilmes , Equipamentos Odontológicos , Humanos , Estudos Retrospectivos , Contagem de Colônia Microbiana , Contaminação de Equipamentos
3.
BMC Oral Health ; 23(1): 865, 2023 11 14.
Artigo em Inglês | MEDLINE | ID: mdl-37964280

RESUMO

BACKGROUND: In dentistry, nosocomial infection poses a great challenge to clinicians. The microbial contamination of water in dental unit waterlines (DUWLs) is ubiquitous. Such infected DUWLs can transmit oral microbes in the form of aerosols. Previous studies have suggested treating DUWLs with various disinfectants to reduce cross-contamination. The literature lacks a comparative evaluation of the effect of the use of 0.2% chlorhexidine (CHX) and 0.1% sodium hypochlorite (NaOCl) in DUWLs on aerosolized bacteria generated during dental procedures. OBJECTIVE: To compare the effect of NaOCl and CHX in DUWLs on aerosolized bacteria generated during restorative and endodontic procedures. MATERIALS AND METHODS: A total of 132 patients were equally divided into three groups (n = 44 in each group) according to the content of DUWL as follows. Group I-0.1% NaOCl Group II-0.2% CHX Group III-distilled water (Positive control) One-way ANOVA was performed and the Kruskal-Wallis test was used for intergroup comparison. RESULTS: For the restorative procedure, inter-group comparison of mean colony-forming units (CFU) scores showed a statistically significant difference between the groups (p - .001) with the score of group 3 higher than group 2 followed by group 1. For the endodontics, an inter-group comparison of CFU scores showed a statistically significant difference between the groups (p - .003) with the mean score in group 1 being the lowest and group 3 being the highest. CONCLUSION: The addition of NaOCl or CHX in DUWLs shows an effective reduction in aerosolized bacteria compared to distilled water.


Assuntos
Clorexidina , Hipoclorito de Sódio , Humanos , Bactérias , Clorexidina/farmacologia , Clorexidina/uso terapêutico , Contagem de Colônia Microbiana , Assistência Odontológica , Equipamentos Odontológicos/microbiologia , Hipoclorito de Sódio/farmacologia , Água/farmacologia
4.
Rev. ADM ; 80(5): 267-273, sept.-oct. 2023.
Artigo em Espanhol | LILACS | ID: biblio-1531449

RESUMO

El propósito del presente trabajo está orientado a generar una reflexión entre el gremio odontológico profesional y los estudiantes de las licenciaturas en Odontología respecto a la contaminación global que estamos generando y a la crítica situación del planeta, así como sus consecuencias ambientales y climatológicas, sobre lo importante que es educar bajo la perspectiva de una Odontología Verde y Sostenible a través de la ambientalización curricular en las escuelas y facultades de Odontología para generar un tipo de cultura y conciencia proambiental. De igual forma para señalar lo sencillo que es ambientalizar agradable y relajantemente nuestro entorno educativo y laboral, así como realizar algunas prácticas odontológicas ecológicas y ambientales en la práctica privada que cuestan poco o nada y que, por el contrario, el gran efecto positivo que éstas tendrán en el medio ambiente y la reducción de los niveles de contaminación actuales. Si realmente logramos generar una nueva cultura y conciencia que se preocupe por el medio ambiente en el campo de la Odontología, los resultados para todos se verán reflejados en un mejor ambiente social, educativo de trabajo y de salud (AU)


The purpose of this work is aimed at generating a reflection between the professional dental guild and the students of the Bachelor's Degrees in Dentistry regarding the global pollution that we are generating and the critical situation of the planet and its environmental and climatological consequences, on how important it is educate under the perspective of a Green and Sustainable Dentistry through the greening of the curriculum in the Schools and Faculties of Dentistry to generate a type of culture and pro-environmental awareness. Likewise, point out how simple it is to pleasantly and relaxingly green our educational and work environment, as well as perform some ecological and environment, as well perform some ecological and environment, dental practices in private practice that cost little or nothing and that, on the contrary, the great positive effect that these will have on the environment and the reduction of current pollution levels. If we truly manage to generate a new culture and awareness that cares about the environment in the field of Dentistry, the results for all will be reflected in a better social, educational, work and health environment (AU)


Assuntos
Odontologia/tendências , Meio Ambiente , Poluição Ambiental/prevenção & controle , Conscientização , Mudança Climática , Equipamentos Odontológicos/tendências , Indicadores de Desenvolvimento Sustentável
6.
Salud mil ; 42(2): e402, 20230929. tab
Artigo em Espanhol | LILACS, UY-BNMED, BNUY | ID: biblio-1531709

RESUMO

A partir de la declaración de la Organización Mundial de la Salud del comienzo de la pandemia COVID-19 causada por el virus SARS-CoV-2 en marzo de 2020, los profesionales de la salud se vieron expuestos a esta enfermedad altamente contagiosa y potencialmente mortal que generó múltiples desafíos a toda la comunidad científica. Provocando cambios de paradigmas en la atención de los pacientes y en el uso de las barreras de protección personal. A nivel mundial se crearon múltiples protocolos para la atención odontológica a medida que se iba desarrollando e investigando el comportamiento del virus. Esta revisión bibliográfica resume las indicaciones y recomendaciones basadas en las evidencias disponibles para disminuir las posibilidades de contaminación ante la exposición a este virus, incluyendo medidas a utilizar desde el ingreso del paciente, los métodos de protección personal, la descontaminación y esterilización del material, así como también la desinfección del área de trabajo. Aunque se ha hecho un gran esfuerzo por mejorar los procesos de bioseguridad a nivel científico tecnológico, hay evidencias de que el factor humano sigue siendo el eslabón más débil de esta cadena.


Since the declaration by the World Health Organization of the beginning of the COVID-19 pandemic caused by the SARS-CoV-2 virus in March 2020, health professionals were exposed to this highly contagious and potentially fatal disease that generated multiple challenges to the entire scientific community. It caused paradigm shifts in patient care and in the use of personal protective barriers. Multiple protocols for dental care were created worldwide as the behavior of the virus was developed and investigated. This bibliographic review summarizes the indications and recommendations based on the available evidence to reduce the possibilities of contamination when exposed to this virus, including measures to be used from patient admission, personal protection methods, decontamination and sterilization of material, as well as disinfection of the work area. Although a great effort has been made to improve biosafety processes at the scientific and technological level, there is evidence that the human factor continues to be the weakest link in this chain.


Desde a declaração pela Organização Mundial da Saúde do início da pandemia de COVID-19 causada pelo vírus SARS-CoV-2 em março de 2020, os profissionais de saúde foram expostos a essa doença altamente contagiosa e potencialmente fatal, que criou vários desafios para toda a comunidade científica. Ela causou mudanças de paradigma no atendimento ao paciente e no uso de barreiras de proteção individual. Em todo o mundo, vários protocolos para atendimento odontológico foram criados à medida que o comportamento do vírus foi desenvolvido e pesquisado. Esta revisão da literatura resume as indicações e recomendações baseadas em evidências para reduzir a probabilidade de contaminação por exposição a esse vírus, incluindo medidas a serem usadas desde a admissão do paciente, métodos de proteção individual, descontaminação e esterilização de equipamentos, bem como desinfecção da área de trabalho. Embora muitos esforços tenham sido feitos para melhorar os processos de biossegurança em nível científico e tecnológico, há evidências de que o fator humano continua sendo o elo mais fraco dessa cadeia.


Assuntos
Humanos , Esterilização/instrumentação , Desinfecção/instrumentação , Equipamentos Odontológicos , Consultórios Odontológicos , COVID-19/prevenção & controle
7.
PeerJ ; 11: e15830, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37576504

RESUMO

Background: This study compared the ability of thermally treated files in shaping simulated canals with double curvature. Fifty-six canals were enlarged to a final size of 25 with ProTaper Next (PTN) or ZenFlex (ZF). Materials: Half of the samples were shaped with cooled files (n = 14 each). The amount of removed resin was measured and canal deviation was determined at eight levels. Shaping time and maximum shaping torque values were also recorded. Data were statistically analyzed using analysis of variance and LSD, Kruskal-Wallis, and chi-square tests at a 0.05 significance level. Results: Compared to PTN and cooled PTN, ZF and cooled ZF required lesser time to shape the canals. The maximum torques were found comparable between the groups. All the groups generated negligible deviations at every canal level evaluated and maintained the canal geometry. Although not significant, the cooled PTN and ZF files exhibited lesser canal deviations than their counterparts. Conclusion: All groups demonstrated similar shaping ability whilst maintaining the original curvature of the canal in simulated canals with double curvature. However, ZF groups were able to shape the canals faster than PTN groups. There was a trend that cooled files made lesser canal deviations compared to their counterparts.


Assuntos
Temperatura Baixa , Equipamentos Odontológicos , Preparo de Canal Radicular , Desenho de Equipamento , Preparo de Canal Radicular/instrumentação , Preparo de Canal Radicular/métodos , Preparo de Canal Radicular/normas , Torque , Análise de Variância , Equipamentos Odontológicos/normas
8.
Rev. ADM ; 80(4): 204-208, jul.-ago. 2023. ilus, tab
Artigo em Espanhol | LILACS | ID: biblio-1526314

RESUMO

Objetivo: disminuir el efecto de artefacto que generan objetos de alta densidad mediante la utilización de filtros de distintos materiales y espesores, ubicados en lugares estratégicos del tomógrafo. Material y métodos: se utilizaron filtros de aluminio y de cobre ubicados en lugares estratégicos en el equipo tomográfico. Se realizaron cortes oblicuos en piezas dentarias con restauraciones metálicas y en implantes; se midió la extensión del artefacto en ancho y alto en cada adquisición tomográfica. Resultados: se hallaron diferencias significativas respecto a la disminución de la dispersión de acuerdo con cada filtro con respecto a la no utilización de estos elementos. Conclusión: la utilización de filtros logró disminuir el efecto de artefacto en estructuras de alta densidad, obteniendo una mejor calidad de imagen para el diagnóstico, permitiendo que el software pueda reconstruir una imagen real (AU)


Objective: to diminish the artifact effect generated by high density objects by using filters of different materials and thickness, located in strategic places of the tomograph. Material and methods: aluminum and copper filters located in strategic places in the tomographic equipment were used. Oblique cuts were made on dental pieces with metal restorations and implants; the extension of the artifact in width and height was measured in each tomographic acquisition. Results: significant differences were found regarding the decrease of the dispersion according to each filter with respect to the non-use of these elements. Conclusion: the use of filters achieves to diminish the artifact effect in structures of high density, obtaining a better image quality for the diagnosis, allowing the software to reconstruct a real image (AU)


Assuntos
Artefatos , Equipamentos Odontológicos , Tomografia Computadorizada de Feixe Cônico , Implantes Dentários , Filtros , Alumínio
9.
BMC Oral Health ; 23(1): 158, 2023 03 18.
Artigo em Inglês | MEDLINE | ID: mdl-36934281

RESUMO

BACKGROUNDS: Numerous studies have shown that dental unit water lines (DUWLs) are often contaminated by a wide range of micro-organisms (bacteria, fungi, protozoa) and various prevalence have been reported for it in previous studies. Therefore, this review study aims to describe the prevalence of bacterial biofilm contamination of DUWLs. METHODS: This is a systematic review and meta-analysis in which the related keywords in different international databases, including Medline (via PubMed) and Scopus were searched. The retrieved studies were screened and the required data were extracted from the included studies. Three standard methods including American Dental Association (ADA), The Center for Disease Control and Prevention (CDC) and contaminated > 100 CFU/ml(C-100) standards were used to assess the bacterial biofilm contamination of DUWLs. All studies that calculated the prevalence of bacterial biofilm contamination of DUWLs, and English full-text studies were included in the meta-analysis. Studies that did not have relevant data or used unusual laboratory methods were excluded. Methodological risk of bias was assessed by a related checklist and finally, the data were pooled by fixed or random-effect models. RESULTS: Seven hundred and thirty-six studies were identified and screened and 26 related studies were included in the meta-analysis. The oldest included study was published in 1976 and the most recent study was published in 2020. According to the ADA, CDC and C-100 standards, the prevalence of bacterial contamination was estimated to be 85.0% (95% confidence interval (CI): 66.0-94.0%), 77.0% (95%CI: 66.0-85.0%) and 69.0% (95%CI: 67.0-71.0%), respectively. The prevalence of Legionella Pneumophila and Pseudomonas Aeruginosa in DUWLs was estimated to be 12.0% (95%CI: 10.0-14.0%) and 8.0% (95%CI: 2.0-24.0%), respectively. CONCLUSION: The results of this review study suggested a high prevalence of bacterial biofilm in DUWLs; therefore, the use of appropriate disinfecting protocol is recommended to reduce the prevalence of contamination and reduce the probable cross-infection.


Assuntos
Bactérias , Equipamentos Odontológicos , Humanos , Equipamentos Odontológicos/microbiologia , Prevalência , Biofilmes , Contaminação de Equipamentos/prevenção & controle , Contagem de Colônia Microbiana
10.
Indian J Dent Res ; 34(3): 266-269, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38197344

RESUMO

Aim: : The aim of this study was to measure the amount of material extruded in the periapical area using three irrigation needles (Max-I-Probe, NaviTip Fx and IrriFlex flexible needle). Materials and Methods: : Mandibular premolars were selected for this study and glass vials were used to gather the extruded debris and they were preweighed. The samples were divided into two groups: Group A (1 mm penetration of needle from working length), which was subdivided into three subgroups: Subgroup A1: Irrigation was made by Max-I-Probe. Subgroup A2: Irrigation was made by NaviTip Fx. Subgroup A3: Irrigation was made by IrriFlex flexible needle. Group B (3 mm penetration of needle), which was subdivided into three subgroups: Subgroup B1: Irrigation was made by Max-I-Probe. Subgroup B2: Irrigation was made by NaviTip Fx. Subgroup B3: Irrigation was made by IrriFlex flexible needle. XP-endo Shaper was used for chemomechanical preparation. After removal from vials, the teeth were incubated and then removed from the incubator and weighed again three times. The average of the readings was taken. Analysis of variance (ANOVA) and least significance difference tests were applied to analyse data. Results: : All of the needles caused debris extrusion. There was a significant difference between groups (P ≤ 0.001) according to the depth of penetration. The lowest value for debris was observed in subgroup B3 while subgroup A2 had shown the highest mean. Conclusion: Results revealed that the design and depth of needles significantly affected the debris extrusion. Using more flexible needles and shorter penetration depth for irrigation so that we don't need to push the needles so far apically.


Assuntos
Equipamentos Odontológicos , Desenho de Equipamento , Agulhas , Análise de Variância , Irrigação Terapêutica
11.
Arq. odontol ; 59: 106-113, 2023. ilus
Artigo em Inglês | LILACS, BBO - Odontologia | ID: biblio-1518971

RESUMO

Aim: The purpose of this study was to evaluate the efficacy to determine the root canal length, in vitro,of both the electronic apex locator (M2) and the autostop (AS - M3) functions of the Endus Duo Gnatus endodontic motor (Gnatus, São Paulo, SP, Brazil). Methods: Thirty extracted human single-rooted premolars had their root canal lengths (TLs) up to the apical foramen determined using the Endus Duo Gnatus in two ways: (1) In the stainless steel (SS) control group, the measurement was obtained using a stainless steel hand instrument with the electronic locator mode (M2 function) connected to a stainless-steel hand instrument (K-file #15). In the NiTi rotary instrument (NiTi RI) intervention group, the measurement was obtained during the instrumentation (M3 function) of the root canals with a nickel-titanium rotary instrument (Hyflex CM: Coltene Whaledent, Cuyahoga Falls, OH, USA), size 25/.06. The NiTi manually used instrument (NiTi MUI) Intervention group performed the measurement in locator mode using a Hyflex instrument, placed to true length manually. Statistical analysis was performed using ANOVA followed by the Tukey post-hoc test with a significance level of p < 0.05. Results: The true mean length and standard deviation (SD) of the standardized root canals were 18.40 ± 2.14mm, while the mean lengths and standard deviations (SD) were 18.29 ± 1.89mm, 18.22 ± 1.85mm, and 17.24 ± 2.09mm for the SS, NiTi RI, and NiTi MUI groups, respectively. However, data from the NiTi MUI Intervention group indicated shorter root canal lengths when compared to the SS control group and the NiTi RI Intervention group values, and were significantly shorter than the true canal length (p < 0.001). Conclusions:The use of the motor in NiTi RI Intervention group showed acceptable results. However, the NiTi MUI Intervention group resulted in unacceptable short measurements.


Objetivo: O objetivo deste estudo foi avaliar a eficácia na determinação do comprimento do canal radicular, in vitro, das funções localizador eletrônico foraminal (M2) e auto-parada durante a instrumentação (M3) do motor endodôntico Endus Duo Gnatus ( Gnatus, São Paulo, SP, Brasil). Métodos: Trinta pré-molares humanos uniradiculares extraídos tiveram seus comprimentos de canais radiculares (CRTs) até o forame apical determinados usando o Endus Duo Gnatus de duas maneiras: (1) No grupo controle de aço inoxidável (SS), a medida foi obtida usando um instrumento manual de aço inoxidável com modo de localização eletrônica foraminal (função M2) conectado a um instrumento manual de aço inoxidável (lima tipo K #15). No grupo intervenção instrumento rotatório NiTi (NiTi RI), a medida foi obtida durante a instrumentação (função M3) dos canais radiculares com instrumento rotatório de níquel-titânio (Hyflex CM: Coltene Whaledent, Cuyahoga Falls, OH, EUA), tamanho 25/.06. O grupo de intervenção NiTi instrumento usado manualmente (NiTi MUI) realizou a medição no modo localizador foraminal usando um instrumento Hyflex, colocado manualmente no comprimento real do dente. A análise estatística foi realizada por meio de ANOVA seguida do teste post-hoc de Tukey com nível de significância de p < 0,05. Resultados: Os comprimentos reais médios dos dentes e desvios-padrão (DP) dos canais radiculares padronizados foram 18,40 ± 2,14 mm, enquanto os comprimentos médios e desvios- padrão (DP) foram 18,29 ± 1,89 mm, 18,22 ± 1,85 mm e 17,24 ± 2,09 mm para os grupos SS, NiTi RI e NiTi MUI, respectivamente. No entanto, os dados do grupo de intervenção NiTi MUI indicaram comprimentos de canais radiculares mais curtos quando comparados aos valores do grupo controle SS e do grupo de intervenção NiTi RI, e foram significativamente mais curtos que o comprimento real do canal (p < 0,001). Conclusões: A utilização do motor no grupo Intervenção NiTi RI apresentou resultados aceitáveis. No entanto, o grupo de intervenção NiTi MUI resultou em medições curtas inaceitáveis.


Assuntos
Pesos e Medidas , Equipamentos Odontológicos , Cavidade Pulpar , Endodontia
12.
Artigo em Inglês | MEDLINE | ID: mdl-36078275

RESUMO

In dental clinics, the infections may be acquired through contaminated devices, air, and water. Aerosolized water may contain bacteria, grown into the biofilm of dental unit waterlines (DUWLs). We evaluated a disinfection method based on water osmosis and chlorination with chlorine dioxide (O-CD), applied to DUWL of five dental clinics. Municipal water was chlorinated with O-CD device before feeding all DUWLs. Samplings were performed on water/air samples in order to research total microbial counts at 22-37 °C, Pseudomonas aeruginosa, Legionella spp., and chlorine values. Water was collected from the taps, spittoons, and air/water syringes. Air was sampled before, during, and after 15 min of aerosolizing procedure. Legionella and P. aeruginosa resulted as absent in all water samples, which presented total microbial counts almost always at 0 CFU/mL. Mean values of total chlorine ranged from 0.18-0.23 mg/L. Air samples resulted as free from Legionella spp. and Pseudomonas aeruginosa. Total microbial counts decreased from the pre-aerosolizing (mean 2.1 × 102 CFU/m3) to the post-aerosolizing samples (mean 1.5 × 10 CFU/m3), while chlorine values increased from 0 to 0.06 mg/L. O-CD resulted as effective against the biofilm formation in DUWLs. The presence of residual activity of chlorine dioxide also allowed the bacteria reduction from air, at least at one meter from the aerosolizing source.


Assuntos
Desinfecção , Legionella , Bactérias , Biofilmes , Cloro/farmacologia , Compostos Clorados , Contagem de Colônia Microbiana , Equipamentos Odontológicos , Desinfecção/métodos , Contaminação de Equipamentos/prevenção & controle , Osmose , Óxidos , Pseudomonas aeruginosa , Água , Microbiologia da Água
13.
Biofouling ; 38(6): 628-642, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35924695

RESUMO

Biosafety in dentistry aims to combat cross-contamination and biofilm in dental unit waterlines. The aim was to investigate from a physical, chemical, mechanical and biological perspective, a protocol for using chemical products (citric acid, sodium bicarbonate and sodium chloride) to improve and maintain water quality in dental unit waterlines. Change in microhardness and corrosion tendency were observed in stainless steel samples. On the polyurethane surfaces, there were changes in color, microhardness and roughness. Anti-biofilm evaluations revealed a significant reduction in the biofilm biomass, metabolic activity and residual biofilm. These findings suggest that the protocol analyzed in this study showed an innovative potential against biofilm in dental unit waterlines, preserving the physical, chemical and mechanical properties of the materials.


Assuntos
Biofilmes , Contaminação de Equipamentos , Contagem de Colônia Microbiana , Corrosão , Equipamentos Odontológicos , Microbiologia da Água
14.
J Dent Res ; 101(10): 1198-1204, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35492016

RESUMO

Oral microbes are dispersed during dental treatment and reduction methods have been proposed, but dental unit waterline (DUWL) disinfectants have received little attention; specifically, the effect on viruses has not been studied. This study aims to 1) investigate the effect of DUWL disinfectants on viral dispersion in dental bioaerosols and 2) establish a dual-tracer system using live bacteriophage and fluorescein supported by optical particle measurement. Bacteriophage MS2 was used as a viral tracer and fluorescein as a fluorescent tracer. Validation experiments were conducted to exclude interference of one tracer with the other or of DUWL disinfectants on detection methods. Simulated "saliva" containing the tracers was infused into the mouth of a dental mannequin during 10-min dental procedures with an air turbine handpiece (n = 3 replicates). Aerosols and droplets were sampled in an enclosed dental operatory using air samplers and settlement onto sterile filter papers. Bacteriophage was quantified using plaque assays and reverse transcription quantitative polymerase chain reaction (RT-qPCR). Fluorescein was quantified fluorometrically. The effect of DUWL disinfectants on total aerosol concentration was assessed in separate experiments using an optical particle counter. DUWL disinfectants reduced bacteriophage viability, and interference between tracers was not observed. In simulated clinical procedures, the disinfectant ICX reduced bacteriophage detection substantially (P < 0.001; 2-way analysis of variance). MS2 RNA was detected in all experimental samples but not negative controls. Samples positive on RT-qPCR but not plaque assays may indicate that virions at distant sites are nonviable. Fluorescein tracer showed good agreement with the bacteriophage tracer. DUWL disinfectants designed for continuous presence in irrigants reduce the dispersion of viable virus in dental bioaerosols during simulated procedures. Their use may therefore be important for routine infection control and as a mitigation factor during infectious disease outbreaks. Future studies should explore this using a range of viruses and other microbes.


Assuntos
Desinfetantes , Aerossóis/análise , Desinfetantes de Equipamento Odontológico/farmacologia , Desinfetantes de Equipamento Odontológico/uso terapêutico , Equipamentos Odontológicos , Desinfetantes/farmacologia , Fluoresceínas
15.
Ned Tijdschr Tandheelkd ; 129(2): 63-65, 2022 Feb.
Artigo em Holandês | MEDLINE | ID: mdl-35133735

RESUMO

An implantable cardioverter defibrillator (ICD) is often placed in patients at high risk of ventricular tachycardia and ventricular fibrillation. An ICD is potentially sensitive to electromagnetic interference (EMI) from dental equipment. Between 2000 to 2020, this was investigated in 7 in vitro studies and 4 in vivo studies. Most dental equipment appears to be safe for routine use in patients with an ICD. However, caution seems appropriate with regard to the use of piezoelectic and magnetostrictive scalers as some can cause EMI up to a distance of 20 to 45 centimeter. Use of an electrotome appears to be contraindicated in ICD wearers.


Assuntos
Desfibriladores Implantáveis , Equipamentos Odontológicos , Campos Eletromagnéticos , Humanos
16.
Oral Health Prev Dent ; 20(1): 61-68, 2022 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-35049253

RESUMO

PURPOSE: A number of disinfectants and sanitisers are used in dentistry, and there are numerous commercial solutions available. Nonetheless, because each cleaning solution has its own set of indications and limits, there is no one-size-fits-all approach for processing all types of dental equipment. Functional water, such as electrolysed hypochlorite microbubbled water, efficiently eliminates and sterilises biofilms. The objective of the study was to evaluate whether ozonated water could be used to sterilise and disinfect dental-unit water pipelines (DUWP) that had been contaminated with micro-organisms, including Gram-positive and Gram-negative bacilli and cocci. MATERIALS AND METHODS: Three different groups were formed: group A - ozonated water (Cantoosh); group B - 1% povidine iodine; and group C: conventional distilled water. Group A was the test group, group B the control group, and group C was the positive control group. The water sterilising system was replaced with the appropriate sterilising agent as per the allocated group classification, with 2 min of purging, so that the complete DUWP was filled with the water sterilising system. Samples were collected and analysed, along with a 2-min purge after 24 h, 7 days and 21 days, at the 3 outlet (OL) points: the 3-way syringe at the dental tray(OL1), the cup filler (OL2), and the 3-way syringe of the assistant zone (OL3). Repeated measures ANOVA was used to test for statistical significance between colony-forming units of control and experimental groups (p < 0.05). RESULTS: The cup filler yielded higher counts than did the 3-way syringe at the dental tray (OL1) (6.40 and 8.05 on the log scale, respectively). A statistically significant difference in the CFUs was also observed between samples taken after 24 h vs 21 days between groups A, B and C. CONCLUSION: The findings showed that exposing DUWP tube systems to ozonated water for an extended length of time drastically lowered the number of microorganisms adhering to their surfaces.


Assuntos
Equipamentos Odontológicos , Água , Biofilmes , Contagem de Colônia Microbiana , Humanos , Microbiologia da Água
17.
São José dos Campos; s.n; 2022. 36 p. tab, ilus.
Tese em Português | BBO - Odontologia | ID: biblio-1371448

RESUMO

A pandemia provocada pelo novo coronavírus, responsável pela COVID-19, alertou a comunidade odontológica, quanto ao risco de contaminação cruzada do cirurgião dentista, sua equipe e pacientes, principalmente devido à grande quantidade de bioaerossóis gerado pelos equipamentos odontológicos de uso rotineiro. Esse estudo teve como objetivo comparar a dispersão do aerossol gerado por diferentes equipamentos odontológicos, bem como verificar a eficácia do uso de um dispositivo desenvolvido para o controle da dissipação do aerossol gerado pelo aparelho piezo-eletro. Como objetivo secundário, verificou-se a efetividade da refrigeração dos equipamentos utilizados. Para a verificação da dissipação de aerossóis, foi utilizado um manequim de estudo em Odontologia, acoplado a uma cadeira odontológica em um consultório de 2,40 x 2,60 de tamanho. Foram testados 2 aparelhos divididos em três grupos: GRUPO AR - alta rotação, GRUPO PE - piezo-eletro e GRUPO PESC - piezo-eletro com Spray control®. Os resultados mostraram uma menor dispersão no grupo PESC, seguido pelo grupo AR. Em relação à temperatura, observou-se que todos os grupos controlaram de forma eficaz o aumento de temperatura, sendo a AR a mais eficiente, seguida pelos dois grupos do Piezo, levando a conclusão que o Spray Control além de não gerar dispersão de aerossol, mantém a refrigeração adequada ao dente durante seu uso. (AU)


The pandemic caused by the new coronavirus, responsible for COVID-19, alerted the dental community to the risk of cross-contamination of the dental surgeon, his team and patients, mainly due to the large amount of bioaerosols generated by routine dental equipment. This study aimed to compare the dispersion of aerosol generated by different dental equipment, as well as to verify the effectiveness of using a device developed to control that dispersion generated by the piezo-electro device (CVDENTUS LTDA). As a secondary objective, was verify the effectiveness of refrigeration of the equipment used. For that dissipation of aerosols, a dental study mannequin was used, attached to a dental chair in a 2.40 x 2.60 office. Two devices were tested, divided into three groups: GROUP AR - high speed, GROUP PE - piezo-electro and GROUP PESC - piezo-electro with Spray control®. So The results have shown a lower dispersion in the PESC group, followed by the AR group. Regarding temperature, it was observed that all groups effectively controlled the temperature increase, with AR being the most efficient, followed by the two groups of Piezo, leading to the conclusion that the Spray Control device, in addition to not generating aerosol dispersion, maintains adequate cooling to the tooth during procedures. (AU)


Assuntos
Controle de Infecções , Aerossóis , Equipamentos Odontológicos , COVID-19
18.
Medicine (Baltimore) ; 100(47): e28019, 2021 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-34964798

RESUMO

ABSTRACT: The water quality of dental unit waterlines (DUWLs) is associated with patient safety. No program for DUWL water quality improvement has been formulated since the time they were established 20 years ago. This study provides an improvement program for the quality of dental unit water. The improvement program was implemented step by step: discharge of DUWLs for 5 minutes in the morning before clinical service to flush out the water left in the pipeline overnight; weekly disinfection of the handpiece connector with 75% alcohol and replacement of the old connector when the water quality of the same dental chair unit (DCU) was continuously found to be unqualified; monthly disinfection of the water supply system and pipeline; and establishment of DCU maintenance work standards and staff education and training. From 2016 to 2018, the water quality of 18 DCUs was tested by microorganism culture. The colonies >200 colony forming unit were categorized as unqualified. This program was divided into a pre-test phase, Phase 1, a maintenance phase, and Phase 2. A Chi-square test was used to calculate the difference of unqualified water quality numbers between each phase of the improvement program. In the pre-test phase, the water quality rate (high quality number/high-quality number + low-quality number) was 58.3%. In Phase 1, the quality rate before and after the intervention was 64.8% (35/54) and 92.2% (83/90) (P < .001), respectively. After Phase 1, the quality rate reached 100%. However, the quality rate dropped to 75% during the maintenance phase. Then, we proceeded into Phase 2 of the improvement program by further monthly disinfection to DUWLs. In Phase 2, the quality rate was 62/73 (84.9%) and improved to 142/144 (98.6%) after the intervention (P < .001). The quality rate reached 100% once again and was maintained at 100% thereafter. In conclusion, the 4 steps of the improvement program improved the water quality of the DUWL, which is important for patient safety.


Assuntos
Equipamentos Odontológicos/microbiologia , Desinfecção , Contaminação de Equipamentos/prevenção & controle , Microbiologia da Água , Qualidade da Água , Abastecimento de Água/normas , Biofilmes , Contagem de Colônia Microbiana , Desinfetantes/uso terapêutico , Hospitais , Humanos , Desenvolvimento de Programas , Melhoria de Qualidade
19.
San Salvador; MINSAL; dic. 08, 2021. 89 p. ilus.
Não convencional em Espanhol | BISSAL, LILACS | ID: biblio-1362387

RESUMO

La revisión y actualización del Listado Oficial de material, instrumental y equipo odontológico del Ministerio de Salud (MINSAL), ha sido coordinada por la Oficina de Salud Oral, de la Dirección de Políticas y Gestión de Salud, con el apoyo de la Dirección de Regulación y la Dirección de Cadena de Suministros, así como también con odontólogos de las diferentes Regiones de Salud y Nivel Local. La actualización del documento, permite la inclusión de nuevos insumos, materiales, instrumental y equipo odontológico; con el fin de utilizarlos en base a los avances tecnológicos de la industria odontológica, eliminar aquellos que ya no se utilizan y que pueden ser reemplazados por otros de mejor calidad


The review and updating of the Official List of dental material, instruments and equipment of the Ministry of Health (MINSAL), has been coordinated by the Office of Oral Health, of the Directorate of Health Policies and Management, with the support of the Directorate of Regulation and the Supply Chain Department, as well as with dentists from the different Health Regions and the Local Level. Updating the document allows the inclusion of new supplies, materials, instruments and dental equipment; in order to use them based on technological advances in the dental industry, eliminate those that are no longer used and that can be replaced by others of better quality


Assuntos
Equipamentos Odontológicos , Materiais Dentários , Saúde Bucal , El Salvador , Equipamentos e Provisões
20.
Viruses ; 13(10)2021 09 25.
Artigo em Inglês | MEDLINE | ID: mdl-34696357

RESUMO

Oral health care workers (OHCW) are exposed to pathogenic microorganisms during dental aerosol-generating procedures. Technologies aimed at the reduction of aerosol, droplets and splatter are essential. This in vivo study assessed aerosol, droplet and splatter contamination in a simulated clinical scenario. The coolant of the high-speed air turbine was colored with red concentrate. The red aerosol, droplets and splatter contamination on the wrists of the OHCW and chests of the OHCW/volunteer protective gowns, were assessed and quantified in cm2. The efficacy of various evacuation strategies was assessed: low-volume saliva ejector (LV) alone, high-volume evacuator (HV) plus LV and an extra-oral dental aerosol suction device (DASD) plus LV. The Kruskal-Wallis rank-sum test for multiple independent samples with a post-hoc test was used. No significant difference between the LV alone compared to the HV plus LV was demonstrated (p = 0.372059). The DASD combined with LV resulted in a 62% reduction of contamination of the OHCW. The HV plus LV reduced contamination by 53% compared to LV alone (p = 0.019945). The DASD demonstrated a 50% reduction in the contamination of the OHCWs wrists and a 30% reduction in chest contamination compared to HV plus LV. The DASD in conjunction with LV was more effective in reducing aerosol, droplets and splatter than HV plus LV.


Assuntos
Aerossóis/análise , Odontologia/métodos , Transmissão de Doença Infecciosa/prevenção & controle , Equipamentos Odontológicos/efeitos adversos , Equipamentos Odontológicos/microbiologia , Humanos , Sucção
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