Masticatory function and mortality among older adults living in long-term care facilities in Brazil.

OBJECTIVE: To investigate the association between mortality and masticatory function in older adults living in long-term care facilities (LTCFs), controlling for demographic and health covariates. BACKGROUND: Poor oral health has been associated with mortality; however, no previous study investigated whether objective and self-reported poor masticatory function is a predictor of early mortality in LTCFs. MATERIALS AND METHODS: Baseline characteristics of 295 participants were collected, including age, sex, polypharmacy, mobility, activities of daily living, frailty, nutritional status, and objective (masticatory performance - chewing gum) and self-reported masticatory function. The participants were followed-up with for 4 years to record the mortality data. Cox regression models were run to analyse the data (α = .05). RESULTS: During the 4-year follow-up, 124 (42.0%) participants died. Older adults with poor masticatory performance (hazard ratio [HR] = 1.59, 95% confidence interval [95% CI] = 1.07-2.36) and those who self-reported masticatory dysfunction (HR = 1.48, 95% CI = 1.01-2.16) were at higher risk of early death than those with good mastication. However, in a multivariate model including both objective and self-reported masticatory function, only the objective measurement remained associated with early death (HR = 1.52, 95% CI = 1.02-2.27). CONCLUSION: Poor masticatory performance seems to be associated with early death in older adults living in LTCFs, but they may have shared risk factors accumulated throughout life that were not covered by the study period.

Reporter's communicative performance, while wearing face masks, during the COVID-19 pandemic / Performance comunicativa dos repórteres com o uso de máscara facial durante a pandemia da COVID-19

ABSTRACT Purpose: to identify the impact of wearing protective face masks on reporters' communicative performance during the COVID-19 pandemic and verify whether there was an association between these aspects. Methods: a quantitative, descriptive, cross-sectional study with a sample of 32 reporters (16 females and 16 males) who worked, during the pandemic. Most participants had a bachelor's degree (n = 28; 87.5%). The sample's mean age was 35.09 years (SD = 9.41), and they had been working in the area for a mean of 10.09 years (SD = 7.62). Reporters answered an online form with 26 questions, developed by the researchers, on their self-perception of voice and communicative performance when wearing a mask, during the pandemic. Data were descriptively analyzed, and the chi-square test was applied with the Statistical Package for the Social Sciences 20 (SPSS). Results: most reporters (n = 20; 62.5%) classified their voices and speech articulation as good (n = 19; 59.4%) and reported difficulties hearing and/or being heard by interviewees in noisy places and perceived their voices were lower, muffled, or with a low volume (n = 28; 87.5%). Also, 22 (68.8%) reported having to speak louder than usually to be heard. Lastly, the questions on reporters' communicative performance were associated with wearing masks while reporting. Conclusion: wearing protective face masks, during reportage, negatively impacted reporters and was associated with their communicative performance.

RESUMO Objetivo: identificar o impacto do uso de máscara de proteção facial na performance comunicativa dos repórteres durante a pandemia da COVID-19, bem como verificar se existe associação entre esses aspectos. Métodos: trata-se de um estudo transversal, de caráter descritivo, com abordagem quantitativa. Participaram 32 repórteres que atuaram durante a pandemia, sendo 16 do sexo feminino e 16 do sexo masculino. A maioria dos participantes tinha ensino superior (n = 28; 87,5%). A amostra apresentou média de idade de 35,09 anos (DP = 9,41) e tempo de atuação na área de 10,09 anos (DP = 7,62). Os repórteres responderam a um formulário online composto por 26 questões, elaborado pelos próprios pesquisadores, sobre a autopercepção vocal e performance comunicativa do repórter com o uso de máscara durante a pandemia. Foi realizada análise descritiva dos dados e aplicado o teste Qui-quadrado por meio do software Statistical Package for Social Sciences 20 (SPSS). Resultados: a maioria dos repórteres (n = 20; 62,5%) classificou sua voz e articulação de fala como boas (n = 19; 59,4%). A maioria dos participantes relatou sentir dificuldade de ouvir e/ou ser ouvido pelo entrevistado em locais com ruído e perceber a sua voz mais baixa, com pouco volume ou abafada (n= 28; 87,5%), bem como 22 (68,8%) relataram ter que falar mais alto do que o normal para ser ouvido. Por fim, verificou-se a presença de associações entre as questões sobre a performance comunicativa dos repórteres e o uso de máscaras durante as reportagens. Conclusão: os repórteres apresentaram impactos negativos com uso das máscaras de proteção facial durante as reportagens, bem como verificou-se associação entre o uso destas com a performance comunicativa.

Hormones and Auditory Perception: Study of Dichotic Listening in Women during the Menstrual Cycle

Abstract Introduction Dichotic listening refers to the ability to hear different sounds presented to each ear simultaneously. Objective The aim of the present study was to assess dichotic listening in women throughout the menstrual cycle. Methods The volunteers who met the eligibility criteria participated in a dichotic listening assessment composed of three tests: 1) staggered spondaic word test; 2) dichotic digits test; and 3) consonant-vowel test. The female participants were tested during two different phases of the menstrual cycle: the follicular (days 11 to 13) and luteal (days 23 to 26) phases. The phases were confirmed by measuring serum levels of the hormone estradiol. Results A total of 20 volunteers aged 18 to 49 years participated in the study (9 females and 11 males). In test 1, only the right ear of females showed better performance during the follicular phase (high estrogen levels), compared with the luteal phase (low estrogen levels); in test 2, there were no significant differences for any of the groups; and in test 3, both males and females showed significantly better performance in their right ear compared with their left ear. Conclusion The better performance of females during the follicular phase of the cycle may indicate that estrogen levels might have an influence on dichotic listening in women. (AU)

Hormones and Auditory Perception: Study of Dichotic Listening in Women during the Menstrual Cycle.

Introduction Dichotic listening refers to the ability to hear different sounds presented to each ear simultaneously. Objective The aim of the present study was to assess dichotic listening in women throughout the menstrual cycle. Methods The volunteers who met the eligibility criteria participated in a dichotic listening assessment composed of three tests: 1) staggered spondaic word test; 2) dichotic digits test; and 3) consonant-vowel test. The female participants were tested during two different phases of the menstrual cycle: the follicular (days 11 to 13) and luteal (days 23 to 26) phases. The phases were confirmed by measuring serum levels of the hormone estradiol. Results A total of 20 volunteers aged 18 to 49 years participated in the study (9 females and 11 males). In test 1, only the right ear of females showed better performance during the follicular phase (high estrogen levels), compared with the luteal phase (low estrogen levels); in test 2, there were no significant differences for any of the groups; and in test 3, both males and females showed significantly better performance in their right ear compared with their left ear. Conclusion The better performance of females during the follicular phase of the cycle may indicate that estrogen levels might have an influence on dichotic listening in women.

High Amount of Organic Matter during Caries Formation Reduces Remineralization and Resin Infiltration of Enamel Caries.

The amount of organic material in the cariogenic environment correlates with the amount of organic material incorporated in carious enamel. The incorporated organic material may be expected to reduce the pore volumes available for remineralization and resin infiltration, but these expected outcomes have not yet been quantified. We tested the effect of the amount of organic content in the cariogenic agent on remineralization and the resin-occluded pore volume in artificial subsurface enamel caries. An acid gel (organic-rich; G1) and an aqueous solution (organic-poor; G2) were used to induce subsurface lesions in human enamel. Undemineralized histological sections were prepared, microradiographed, and then submitted to resin infiltration in vitro. The enamel component volumes (mineral, organic, remineralizable [total water volume], loosely and firmly bound water volumes, and resin-occluded volume) were measured (by microradiography and polarizing microscopy) at histological sites (n = 38, G1; n = 34, G2). The main outcomes were the differences between the experimental and the predicted volumes (Δremineralizable and Δresin-occluded volumes). Resin infiltration was confirmed by confocal scanning laser microscopy. Compared to G2, G1 presented more incorporated organic volume and lower Δremineralizable volume (p = 0.003; Hedges g = 0.66; power = 0.87), a lower increase in loosely bound water volume (p = 0.0013; Hedges g = 0.74; power = 0.93), a lower remineralization volume in the surface layer (p = 0.017; Hedges g = 0.68; power = 0.8), and a lower Δresin-occluded volume (p = 0.0015; Hedges g = 0.73; power = 0.92). In conclusion, the higher amount of organic matter in the cariogenic gel negatively affected remineralization and the resin-occluded volume in subsurface lesions.

Avaliação da percepção auditiva em mulheres durante ciclo menstrual: revisão sistemática / Evaluation of auditory perception in women during menstrual cycle: a systematic review / Percepción de evaluación de audiencia sobre la mujer durante el ciclo menstrual: revisión sistemática

Introdução: As flutuações hormonais que ocorrem normalmente durante o ciclo menstrual podem interferir no sistema auditivo. A alteração mais encontrada neste período é a diminuição da acuidade auditiva, que parece estar mais associada à flutuação dos níveis de estrogênio, quando este se encontra reduzido na fase lútea final do período menstrual. Objetivo: Investigar por meio de uma revisão sistemática a percepção auditiva de mulheres durante as fases do ciclo menstrual. Método: Foi realizada uma busca nas bases de dados eletrônicas, nacionais e internacionais, LILACS, MEDLINE, PubMed e SciELO, através da consulta pelos seguintes descritores: "percepção auditiva" AND "ciclo menstrual", "percepção de fala" AND "ciclo menstrual", "percepção de fala" AND "hormônios" e seus correspondentes na língua inglesa. Resultados: Dos 293 artigos encontrados, foram selecionados apenas 7 artigos, após os critérios de inclusão e exclusão. A caracterização da amostra dos artigos selecionados variou entre 15 a 39 mulheres, com idade variando entre 17 e 46 anos. Na maioria dos artigos, nenhum tipo de procedimento clínico para estimar as fases do ciclo menstrual foi utilizado. Foi observada a realização de testes de percepção auditiva nos sete artigos selecionados, tendo destaque os testes dicóticos. Conclusão: Há necessidade da realização de mais pesquisas sobre o assunto, exigindo-se também maior rigor metodológico na elaboração desses estudos, através de procedimentos clínicos seguros e padronizados para mensuração dos níveis hormonais.

Introduction: Hormonal fluctuations that normally occur during the menstrual cycle can interfere with the audio system. The change most found in this period is the reduction of auditory acuity, which seems to be more related to fluctuating estrogen levels, when it is reduced in the luteal phase of the menstrual period end. Objective: Investigate through a systematic review hearing in women during the menstrual cycle phases. Method: A search was made in the electronic databases, national and international, LILACS, MEDLINE, PubMed and SciELO, by consulting the following descriptors: "auditory perception" and "menstrual cycle", "speech perception" and "menstrual cycle", "speech perception" and "hormones" and their corresponding in Portuguese. Results: Twenty-two articles were found, but only 7 articles were chosen after the criteria for inclusion and exclusion. The amount of the sample of selected articles ranged between 15 and 39 women, aged between 17 and 46 years old. In most articles, any type of medical procedure to estimate the phases of the menstrual cycle was used. The performance of auditory perception tests in the seven selected articles was observed, highlighted with the dichotic tests. Conclusion: There is a need of further research on the subject, demanding a greater methodological rigor in the preparation of these studies, through clinical safe and standardized to measure hormone levels procedures.

Introducción: Las fluctuaciones hormonales que ocurren normalmente durante el ciclo menstrual puede interferir con el sistema de audio. El hallazgo más frecuente en este periodo es la reducción de la agudeza auditiva, lo que parece estar más relacionado con la fluctuación de los niveles de estrógenos, cuando se reduce en la fase lútea del final del periodo menstrual. Objetivos: Investigar a través de una revisión sistemática de la percepción auditiva de la mujer durante las fases del ciclo menstrual. Métodos: Se realizó una búsqueda en bases de datos electrónicas, nacionales e internacionales, LILACS, MEDLINE, PubMed y SciELO, mediante la consulta de los siguientes descriptores: "la percepción auditiva" Y "ciclo menstrual", "la percepción del habla" Y "ciclo menstrual", "la percepción del habla" y "hormonas" y sus homólogos en el idioma Inglés. Resultados: De los 293 artículos encontrados, se seleccionaron sólo 7 artículos, después de que los criterios de inclusión y exclusión. La caracterización de la muestra de los artículos seleccionados osciló entre 15 y 39 mujeres, con edades comprendidas entre los 17 y 46 años. En la mayoría de los artículos, cualquier tipo de procedimiento médico para estimación se utilizan las fases del ciclo menstrual. el rendimiento de la prueba de percepción auditiva se observó en los siete elementos seleccionados, resalte que tiene dicóticos. Conclusión: Existe la necesidad de más investigación sobre el tema, lo que requiere también mayor rigor metodológico en la elaboración de estos estudios, através de procedimientos clínicos segura y estandarizada para medir los niveles hormonales.

Eugenia uniflora Dentifrice for Treating Gingivitis in Children: Antibacterial Assay and Randomized Clinical Trial.

School-age children are frequently at high risk for the onset of biofilm-dependent conditions, including dental caries and periodontal diseases. The objective of this study was to evaluate the clinical efficacy of a dentifrice containing Eugenia uniflora Linn. (Surinam cherry) extract versus a triclosan-based comparator in treating gingivitis in children aged 10-12 years. The in vitro antibacterial potential of the dentifrice was tested against oral pathogens (Streptococcus mutans, Streptococcus oralis and Lactobacillus casei). Then a phase-II clinical trial was conducted with 50 subjects aged 10-12 years, with clinical signs of gingivitis. The subjects were randomly assigned to the experimental group (n=25) and control group (n=25), in which participants used the experimental dentifrice and a triclosan-based fluoridated dentifrice (Colgate Total 12(r)), respectively. Clinical examinations assessed the presence of gingivitis (primary outcome) and biofilm accumulation (secondary outcome) using the Gingival-Bleeding Index (GBI) and Simplified Oral Hygiene Index (OHI-S), respectively, at baseline and after seven days of tooth brushing 3x/day. The data were analyzed using paired and unpaired t-test (GBI) and Wilcoxon and Mann-Whitney (OHI-S), with p≤0.05. The experimental dentifrice showed efficient antibacterial activity in vitro. In the clinical trial, a significant reduction in gingival bleeding was observed in both experimental and control groups (p<0.0001), with no statistical difference between them (p=0.178), although a small size effect was observed. Biofilm accumulation was only reduced in the control group (p=0.0039). In conclusion, E. uniflora dentifrice showed anti-gingivitis properties in children aged 10-12 years. Thus, it may be a potentially efficient and safe product to be used alternatively in preventive dental practice.

Eugenia uniflora Dentifrice for Treating Gingivitis in Children: Antibacterial Assay and Randomized Clinical Trial

Abstract School-age children are frequently at high risk for the onset of biofilm-dependent conditions, including dental caries and periodontal diseases. The objective of this study was to evaluate the clinical efficacy of a dentifrice containing Eugenia uniflora Linn. (Surinam cherry) extract versus a triclosan-based comparator in treating gingivitis in children aged 10-12 years. The in vitro antibacterial potential of the dentifrice was tested against oral pathogens (Streptococcus mutans, Streptococcus oralis and Lactobacillus casei). Then a phase-II clinical trial was conducted with 50 subjects aged 10-12 years, with clinical signs of gingivitis. The subjects were randomly assigned to the experimental group (n=25) and control group (n=25), in which participants used the experimental dentifrice and a triclosan-based fluoridated dentifrice (Colgate Total 12(r)), respectively. Clinical examinations assessed the presence of gingivitis (primary outcome) and biofilm accumulation (secondary outcome) using the Gingival-Bleeding Index (GBI) and Simplified Oral Hygiene Index (OHI-S), respectively, at baseline and after seven days of tooth brushing 3x/day. The data were analyzed using paired and unpaired t-test (GBI) and Wilcoxon and Mann-Whitney (OHI-S), with p≤0.05. The experimental dentifrice showed efficient antibacterial activity in vitro. In the clinical trial, a significant reduction in gingival bleeding was observed in both experimental and control groups (p<0.0001), with no statistical difference between them (p=0.178), although a small size effect was observed. Biofilm accumulation was only reduced in the control group (p=0.0039). In conclusion, E. uniflora dentifrice showed anti-gingivitis properties in children aged 10-12 years. Thus, it may be a potentially efficient and safe product to be used alternatively in preventive dental practice.

Resumo Crianças em idade escolar apresentam, com frequência, alto risco para o desenvolvimento de doenças biofilme-dependentes, incluindo cárie e doenças periodontais. Este estudo investigou a eficácia clínica de um dentifrício contendo o extrato de Eugenia uniflora Linn. (pitanga) comparado a um dentifrício com triclosan no combate à gengivite em crianças de 10 a 12 anos. Foi avaliado o potencial antibacteriano in vitro do dentifrício sobre microorganismos da cavidade oral (S. mutans S. oralis and L. casei) e realizado um estudo clínico fase II incluindo 50 sujeitos, com sinais clínicos de gengivite, divididos aleatoriamente em dois grupos: Experimental - 25 sujeitos usaram o dentifrício contendo extrato de pitanga; e Controle - 25 sujeitos que usaram um dentifrício fluoretado contendo triclosan (Colgate Total 12(r)). Na baseline e após sete dias consecutivos de escovação, foi realizado o exame clínico para diagnóstico de gengivite (desfecho primário) e acúmulo de biofilme (desfecho secundário), utilizando o Índice de Sangramento Gengival (ISG) e Índice de Higiene Oral Simplificado (IHO-S). Os dados foram analisados utilizando o teste t pareado e não pareado (ISG) e teste de Wilcoxon e Mann-Whitney (IHO-S), com nível de significância de p≤0,05. Observou-se uma efetiva atividade antibacteriana do dentifrício experimental. No estudo clínico, observou-se redução de sangramento gengival em ambos os grupos experimental e controle (p<0,0001), não havendo diferença entre eles (p 0,178), embora com uma pequena magnitude de efeito. Apenas o grupo controle reduziu significantemente o acúmulo de biofilme (p=0,0039). Concluiu-se que o dentifrício experimental de E. uniflora mostrou-se eficaz na redução de gengivite em crianças de 10 a 12 anos. Assim, este dentifrício apresenta potencial para ser utilizado de forma eficaz e segura em odontologia preventiva.

Uso do forno de micro-ondas na descontaminação de escovas dentais: estudo in vitro / Use the microwave oven in the decontamination of toothbrushes: an in vitro study

Objetivou-se avaliar a descontaminação de escovas dentais por meio da utilização de forno de micro-ondas caseiro. Utilizaram-se 20 escovas dentais, divididas equitativamente em 2 grupos, sendo o grupo A contaminado in vitro com Candida albicans e o grupo B por Streptococcus mutans. As cerdas das escovas foram inseridas durante 30 segundos em meio de cultura líquido contendo uma proporção de 108 microrganismos por mL e, em seguida, acondicionadas em tubo de ensaio estéril. Os grupos foram, então, divididos em cinco subgrupos de duas escovas cada, os quais foram submetidos a cinco diferentes tempos de exposição à radiação do forno de micro-ondas: T1-zero (controle negativo), T2-dois, T3-cinco, T4-sete e T5-dez minutos. As escovas foram retiradas dos tubos de ensaio e foram colocadas no forno de micro-ondas em um recipiente com água e sem rotação, estando as cerdas para cima e sem contato com a água. Após a exposição, as escovas foram introduzidas em tubos de ensaio com caldo Brain Heart Infusion e incubadas em estufa bacteriológica a 37o por 24 horas. A leitura dos resultados foi realizada através da observação da turvação do meio. Para a C. albicans, não se observou turvação do meio líquido a partir de sete minutos de exposição; da mesma forma para o S. mutans aos dez minutos. A descontaminação das escovas dentais por meio do uso do micro-ondas caseiro foi efetivo para C. albicans e S. mutans.

It was aimed to evaluate the decontamination of toothbrushes by means of home microwave oven. A total of 20 toothbrushes, divided equally into 2 groups, group A, infected in vitro with Candida albicans, and group B with Streptococcus mutans. The brushes’ bristles were inserted for 30 seconds in liquid culture médium containing a proportion of 108 micro-organisms per mL and then placed in sterile test tube. The groups were then divided into Five groups of two toothbrushes each, which were submitted to Five different times of exposure to radiation from the microwave oven: T1-zero (negative control), T2-two, T3-five, T4-seven and T5-ten minutes. The brushes were removed from the test tubes and placed inside a microwave oven in a container with water and without rotation, with the bristles up and without contact with water. After exposure, the brushes were made in test tubes with Brain Heart Infusion broth and incubated in a bacteriological incubator at 37o for 24 hours. The reading of the results was performed by observing the turbidity of the médium. For C. albicans, there was no turbidity of the net from seven minutes of exposure, similarly to the S. mutans on ten minutes. The decontamination of toothbrushes by the use of home microwave oven was effective for C. albicans and S. mutans.

Avaliação in vivo de dentifrício contendo extrato da Eugenia uniflora L. (Pitanga) sobre indicadores de saúde bucal / In vivo evaluation of a dentifrice containing Eugenia uniflora L. extract, on the oral health indicators

Objetivo: Avaliar in vivo o efeito do uso de um dentifrício contendo o extrato hidroalcoólico do fruto maduro da Eugenia uniflora L. (Pitanga) sobre indicadores de saúde bucal. Método: Foi realizado um ensaio clínico aleatório, com uma amostra de 40 universitários de 21 a 24 anos de idade, de ambos os gêneros. Os participantes foram divididos em dois grupos: G1- 20 universitários que utilizaram o dentifrício a base do extrato hidroalcoólico do fruto maduro da Eugenia uniflora L. (Pitanga) a 3%; e G2 - 20 universitários que utilizaram dentifrício da Colgate Total 12® (grupo controle). Os participantes usaram os dentifrícios durante 22 dias consecutivos, tendo sido mensurados os índices de acúmulo de biofilme (IHO-S), doença gengival (ISG) e contagem de S. mutans salivar, nos tempos (t1) antes do uso, (t2) 15 dias de uso e (t3) 22 dias de uso dos produtos. Os dados foram analisados através do teste estatístico de t de Student. Resultados: As médias encontradas em t1, t2 e t3 para o G1 foram, respectivamente, IHO-S: 0,75/ 0,55/ 0,47; ISG: 2,96/ 1,86/ 1,35; UFC/mL: 1,69 x 104 / 1,45 x 104 / 1,33 x 104; para G2: IHO-S: 0,61/ 0,52/ 0,42; ISG: 1,94/ 1,62/ 1,20; UFC/mL: 1,84 x 104 / 1,47 x 104 / 1,36 x 104. Observou-se redução estatisticamente significante entre os tempos t1 e t3 em ambos os grupo para os índices IHO-S, ISG e UFC/mL pelo teste t Student (p<0,01). Ao comparar os grupos G1 e G2, constatou-se diferença estatística apenas para o ISG (p<0,01). Conclusão: O dentifrício contendo o extrato hidroalcoólico do fruto maduro da Eugenia uniflora L. (Pitanga) possui eficácia semelhante ao dentifrício da Colgate Total 12® (grupo controle).

Objective: To assess in vivo the effect of using a dentifrice containing hydroalcoholic extract of the ripe fruit of Eugenia uniflora L. on the oral health indicators. Method: A random clinical trial was performed with 40 male and female undergraduate dental students aged 21 to 24 years. The students were assigned to two groups: G1 - 20 students that used the dentifrice containing 3% hydroalcoholic extract of the ripe fruit of Eugenia uniflora L., and G2 - 20 students that used Colgate Total 12® dentifrice (control group). The participants used the dentifrices during 22 consecutive days and the following indicators were measured at t1 (before the use of dentifrice), t2 (after 15 days of use) and t3 (after 22 days of use): biofilm accumulation (OHI-S), gingival disease (GBI) and salivary S. mutans count (cfu/mL). Data were analyzed by the Student's t-test. Results: Means at t1, t2 and t3 for G1 were, respectively: OHI-S: 0.75/ 0.55/ 0.47; GBI: 2.96/ 1.86/ 1.35; cfu/mL: 1.69 x 104 / 1.45 x 104 / 1.33 x 104; for G2 were: OHI-S: 0.61/ 0.52/ 0.42; GBI: 1.94/ 1.62/ 1.20; cfu/mL: 1.84 x 104 / 1.47 x 104 / 1.36 x 104. There was a statistically significant decrease of OHI-S, GBI and cfu/mL from t1 to t3 for both groups (p<0.01). Comparing the groups, there was statistically significant difference only for GBI (p<0.01). Conclusion: The dentifrice containing hydroalcoholic extract of the ripe fruit of Eugenia uniflora L. presented similar efficacy to that of Colgate Total 12® dentifrice (control group).

Avaliação in vitro do potencial antibacteriano de cimentos de ionômericos de vidro / In vitro evaluation of antibacterial effects of glass ionomers cements

Objetivo: Avaliar in vitro a atividade antibacteriana de Cimentos de Ionômeros de Vidro (CIV) convencionais sobre as cepas de Streptococcus salivarius (ATCC 7073), Streptococcus oralis (ATCC 10557) e Lactobacillus casei (ATCC 7469). Material e Métodos: Manipularam-se os CIVs: G1: Vitro Fil® (DFL); G2: Vidrion R® (SSWhite) e G3: Magic Glass® (Vigodent), para preparar 6 corpos-de-prova de cada material, com 6mm de diâmetro por 3mm de altura, utilizando tubetes anestésicos. A análise antimicrobiana foi realizada pela técnica da difusão em Ágar Sangue. As placas foram semeadas pelo inoculo à 108 UFC/mL, e os corpos-de-prova foram inseridos no meio de cultura em poços de 6mm de diâmetro. Cada placa bacteriana recebeu 1 corpos-de-prova de cada grupo e foram incubadas em estufa bacteriológica a 37º por 24 horas, para posterior mensuração dos halos de inibição. Resultados: Os dados foram submetidos aos testes estatísticos ANOVA e Tukey (α=5 por cento). Na placa de S. salivarius, as médias dos halos foram para G1 e G3: 11,5mm e G2: 13,5mm, não apresentando diferenças estatisticamente significantes (p>0,05). Já para S. oralis, apenas o G3 obteve ação, com média de halos em 13mm. Frente ao L. casei, nenhum CIV provocou inibição bacteriana. Conclusão: Os resultados demonstraram que as cepas apresentaram diferente sensibilidade sobre os ionômeros testados, tendo o Magic Glass® os maiores halos de inibição de crescimento.