Bacterial Plaque
Mostrando 13-24 de 273 artigos, teses e dissertações.
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13. Microbiological changes after periodontal therapy in diabetic patients with inadequate metabolic control
The present study investigated the effect of non-surgical periodontal treatment (SRP) on the composition of the subgingival microbiota of chronic periodontitis (CP) in individuals with type 2 diabetes (DM2) with inadequate metabolic control and in systemically healthy (SH) individuals. Forty individuals (20 DM2 and 20 SH) with CP underwent full-mouth periodo
Braz. oral res.. Publicado em: 16/05/2014
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14. Oral antibacterial effect of chlorhexidine treatments and professional prophylaxis in children
AIM: The primary aim of this longitudinal study was to evaluate additional effects of 4-week chlorhexidine digluconate (CHX) gel treatments to control Aggregatibacter actinomycetemcomitans counts in children after professional dental prophylaxis. Porphyromonas gingivalis and Streptococcus mutans counts were also determined to evaluate the secondary effects o
Braz. J. Oral Sci.. Publicado em: 2013-06
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15. Estudo da cinética de ligação de cálcio e fluoreto à superfície de estreptococos e sua importância como reservatórios de íons no biofilme dental / Kinetics of calcium and fluoride binding to the surface of streptococci and the importance of these ions as mineral reservoirs in dental biofilm
The study of the retention of mineral ions in dental biofilm and their release to the biofilm fluid is important to understand the role of these reservoirs to interfere with the dental caries process. It is known that fluoride (F) is bound to the biofilm by interaction with calcium (Ca) ions. One type of reservoir formed is Ca-F bridging in bacteria surface
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/06/2012
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16. Influence of lingual bracket position on microbial and periodontal parameters in vivo
OBJECTIVE: Lingual orthodontics is becoming more popular in dental practice. The purpose of the present investigation was to compare plaque formation on teeth bonded with the same bracket onto buccal or lingual surface, with non-bonded control teeth, via an in vivo growth experiment over a 30-day period. MATERIAL AND METHODS: A randomized controlled trial wi
Journal of Applied Oral Science. Publicado em: 2012-06
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17. Periodontitis-associated risk factors in pregnant women
OBJECTIVE: The main objective of this study was to investigate the risk factors associated with periodontitis in pregnant women. METHODS: This study was conducted in two stages. In Stage 1, a cross-sectional study was conducted to determine the prevalence of periodontitis among 810 women treated at the maternity ward of a university hospital. In Stage 2, the
Clinics. Publicado em: 2012
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18. Análise microbiológica comparativa da ação de diferentes agentes descontaminantes sobre superfícies de titânio / Microbiological comparison of different decontaminant agents on rough and smooth titanium surfaces: microbiological analysis
Actually, the titanium implants are a successful option of treatment in Dentistry. However, failures are possible to occur due to surface exposition to oral environment immediately or lately after its implantation. The titanium implants surfaces can be infected by bacteria and its products similarly to dental roots surfaces. The contaminants turn the inflamm
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/2011
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19. Análise da diversidade bacteriana associada ao biofilme dentário por polimorfismo de comprimento de fragmentos terminais de restrição (T-RFLP) / Analysis of bacterial diversity associated with dental biofilm by Terminals Restriction Fragment Length Polymorphism(T-RFLP
As comunidades bacterianas presentes na cavidade bucal desempenham papel importante no equilíbrio saúde/doença em seres humanos. Nesse sentido, o estudo da composição de microambientes orais pode contribuir para uma melhor precisão no diagnóstico de doenças infecciosas e, consequentemente, para o desenvolvimento de abordagens terapêuticas mais efica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/07/2011
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20. Scanning Electron Microscopic study of Piper betle L. leaves extract effect against Streptococcus mutans ATCC 25175
INTRODUCTION: Previous studies have shown that Piper betle L. leaves extract inhibits the adherence of Streptococcus mutans to glass surface, suggesting its potential role in controlling dental plaque development. OBJECTIVES: In this study, the effect of the Piper betle L. extract towards S. mutans (with/without sucrose) using scanning electron microscopy (S
Journal of Applied Oral Science. Publicado em: 2011-04
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21. Cromoblastomicose no Maranhão: uma abordagem microbiológica, ambiental e molecular
The chromoblastomycosis (CBM) is a chronic fungal infection of skin and subcutaneous tissue caused by several melanized fungi of Chaetotrhyales order. Fonsecaea pedrosoi is the major causative agent of the disease. This study aimed to evaluate the clinical and epidemiological aspects of patients with CBM and phenotypic and genotypic characterization of the a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/12/2010
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22. Detection of selected bacterial species in intraoral sites of patients with chronic periodontitis using multiplex polymerase chain reaction
OBJECTIVE: The aim of this study was to detect the prevalence of selected bacterial species in intraoral sites of patients with chronic periodontitis (CP) using multiplex polymerase chain reaction (PCR). METHODOLOGY: Samples were collected from the tongue dorsum, buccal mucosa, supragingival and subgingival plaque and saliva of 30 patients with untreated CP.
Journal of Applied Oral Science. Publicado em: 2010-08
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23. S. mutans biofilm model to evaluate antimicrobial substances and enamel demineralization
The aim of this study was to validate a model of S. mutans biofilm formation, which simulated 'feast-famine' episodes of exposure to sucrose that occur in the oral cavity, showed dose-response susceptibility to antimicrobials and allowed the evaluation of substances with anticaries potential. S. mutans UA159 biofilms were grown for 5 days on bovine enamel sl
Brazilian Oral Research. Publicado em: 2010-06
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24. Ocorrência de patógenos periodontais na cavidade bucal humana: relação com status periodontal, idade e tabagismo / Occurrence of periodontal pathogens in the human oral cavity: association with periodontal status, age and tobacco use
Study hypothesis: The current study hypothesized that age and personal and/or maternal periodontal status favor the occurrence of periodontal pathogens, whereas tobacco use does not. Aim: To evaluate the relation between age, periodontal status and smoking and the presence of A. actinomycetemcomitans, P. gingivalis, P. intermedia, T. forsythia and C. rectus.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/04/2009