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Search Results: 1 - 10 of 177391 matches for " Flaviana Bombarda de Andrade "
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Pain and disease according to integral anthroposophical dentistry
Célia Regina Lulo Galitesi,Flaviana Bombarda de Andrade,Ana Flávia Sanches Borges
Brazilian Oral Research , 2012, DOI: 10.1590/s1806-83242012000700009
Abstract: From an academic standpoint, the university format, in general, has been nurturing a "paradigm of expertise" and, consequently, the relationship between specialties has declined. The upshot is that recent college dental graduates have adopted a clinical performance focusing on system parts and their specificities, in detriment to a more comprehensive view of the mouth and of the patient as a whole, with his/her vital, emotional and individual attributes. An interaction between the several different areas of human knowledge is needed imminently to decrease the dichotomy in professional behavior, because the demand for professionals and dental patients interested in a more comprehensive approach are increasing day by day. Patients want to know: "What, in fact, is behind the etiological extrinsic and intrinsic factors that maintain neuropathic pain, recurrent thrush, or persistent halitosis," among other questions, "even under the care of a dentist?" or "Why is this disease affecting me?" There are several issues composing the paradigm of salutogenesis: What are the essential aspects that constitute a healthy individual, overlapping the usual investigation: How to destroy, avoid and quell the pathological agents? A proposed approach is based on salutogenesis, which examines such issues. According to this approach, anthroposophical dentistry includes determinant factors, determinants of health, basic research and the development of oral health promotion, thus connecting dental academia with integrative thinking, while also complementing and gathering information that subsidizes basic research with the primordial concepts on laws governing the parameters involved in the vital processes of nature.
In vitro assessment of solvent evaporation from commercial adhesive systems compared to experimental systems
Nihi, Fabio Mitugui;Fabre, Hebert Samuel Carafa;Garcia, Georges;Fernandes, Karen Barros Parron;Ferreira, Flaviana Bombarda de Andrade;Wang, Linda;
Brazilian Dental Journal , 2009, DOI: 10.1590/S0103-64402009000500007
Abstract: solvents should be properly evaporated after application to dental substrates. the aim of this study was to assess the evaporation of commercial, experimental and neat solvents. the tested null hypotheses were that there are no differences in solvent evaporation regardless of its formulation and over time. evaporation from commercial adhesive systems (scotchbond multipurpose primer, scotchbond multipurpose adhesive, prime & bond nt, multi bond, excite, single bond 2, adhese primer, adhese bond, xeno iii a and xeno iii b) and experimental primers (35% hema plus 65% acetone or ethanol or water v/v) were compared to neat solvents (acetone, ethanol and water). samples (10 μl) of these products were dripped into glass containers placed on a digital precision balance. evaporation was assessed at 0, 5, 10, 15, 30, 60, 120, 300 and 600 s times to calculate mass loss. data were analyzed statistically by anova and bonferroni's correction (a=0.05). acetone-based products exhibited a remarkable capacity to evaporate spontaneously over time. neat acetone evaporated significantly more than the hema-mixtures and the commercial formulations (p<0.05). the incorporation of monomers and other ingredients in the commercial formulations seem to reduce the evaporation capacity. solvent evaporation was time and material-dependent.
Activity of endodontic antibacterial agents against selected anaerobic bacteria
Ferreira, Cláudio Maniglia;Rosa, Odila Pereira da Silva;Torres, Sérgio Aparecido;Ferreira, Flaviana Bombarda de Andrade;Bernardinelli, Norberti;
Brazilian Dental Journal , 2002, DOI: 10.1590/S0103-64402002000200008
Abstract: the antimicrobial activity of substances used as antibacterial agents (solutions of 10% calcium hydroxide, camphorated paramonochlorophenol - pmcc, 2% chlorhexidine digluconate and 10% castor oil plant detergent) on anaerobic bacteria (fusobacterium nucleatum atcc 25586, prevotella nigrescens atcc 33563, clostridium perfringens atcc 13124 and bacteroides fragilis atcc 25285), using a broth dilution technique, was evaluated in vitro. for determination of minimum inhibitory and minimum bactericide concentrations (mic and mbc), two culture broths, reinforced clostridial medium (rcm) and supplemented brucella, standardized inoculum and serially diluted solutions were used. all antibacterial agents presented antimicrobial activity that varied for different bacteria. there were no differences in the performance of the two broths. chlorhexidine digluconate was the most effective, with the lowest mics, followed by castor oil detergent, pmcc and calcium hydroxide. c. perfringens and b. fragilis were the most resistant bacteria to all agents.
In vitro effect of intracanal medicaments on strict anaerobes by means of the broth dilution method
ROSA, Odila Pereira da Silva;TORRES, Sérgio Aparecido;FERREIRA, Claudio Maniglia;FERREIRA, Flaviana Bombarda de Andrade;
Pesquisa Odontológica Brasileira , 2002, DOI: 10.1590/S1517-74912002000100006
Abstract: the determination of bacterial susceptibility to intracanal medicaments is a necessity. nevertheless, few studies utilize the proper methodology to carry out that evaluation with anaerobes. in this study, the steps of a broth dilution method, carried out in microplates (microdilution) and tubes (macrodilution), to test the effect of traditional intracanal medicaments on anaerobic bacteria are described. the results are presented as values of minimal inhibitory and bactericidal concentrations (mic and mbc). standardized inocula of the anaerobic bacteria prevotella nigrescens (atcc 33563), fusobacterium nucleatum (atcc 25586) and clostridium perfringens (atcc 13124), in reinforced clostridium medium (rcm) and supplemented brucella broth, were submitted to different concentrations of calcium hydroxide, chlorhexidine digluconate, camphorated paramonochlorophenol and formocresol solutions. the drugs were diluted in the same culture broths, in microplates and tubes, and were then incubated in anaerobiosis jars at 37oc for 48 or 96 hours. the determination of mics was carried out through visual and spectrophotometric readings, and the determination of mbcs, through the plating of aliquots on rcm-blood agar. for that kind of study, the macromethod with spectrophotometric reading should be the natural choice. mics and mbcs obtained with the macromethod were compatible with the known clinical performance of the studied medications, and the values varied according to the bacteria and culture media employed. rcm was the most effective medium and c. perfringens, the most resistant microorganism.
In vitro effect of intracanal medicaments on strict anaerobes by means of the broth dilution method
ROSA Odila Pereira da Silva,TORRES Sérgio Aparecido,FERREIRA Claudio Maniglia,FERREIRA Flaviana Bombarda de Andrade
Pesquisa Odontológica Brasileira , 2002,
Abstract: The determination of bacterial susceptibility to intracanal medicaments is a necessity. Nevertheless, few studies utilize the proper methodology to carry out that evaluation with anaerobes. In this study, the steps of a broth dilution method, carried out in microplates (microdilution) and tubes (macrodilution), to test the effect of traditional intracanal medicaments on anaerobic bacteria are described. The results are presented as values of minimal inhibitory and bactericidal concentrations (MIC and MBC). Standardized inocula of the anaerobic bacteria Prevotella nigrescens (ATCC 33563), Fusobacterium nucleatum (ATCC 25586) and Clostridium perfringens (ATCC 13124), in reinforced Clostridium medium (RCM) and supplemented Brucella broth, were submitted to different concentrations of calcium hydroxide, chlorhexidine digluconate, camphorated paramonochlorophenol and formocresol solutions. The drugs were diluted in the same culture broths, in microplates and tubes, and were then incubated in anaerobiosis jars at 37oC for 48 or 96 hours. The determination of MICs was carried out through visual and spectrophotometric readings, and the determination of MBCs, through the plating of aliquots on RCM-blood agar. For that kind of study, the macromethod with spectrophotometric reading should be the natural choice. MICs and MBCs obtained with the macromethod were compatible with the known clinical performance of the studied medications, and the values varied according to the bacteria and culture media employed. RCM was the most effective medium and C. perfringens, the most resistant microorganism.
Activity of endodontic antibacterial agents against selected anaerobic bacteria
Ferreira Cláudio Maniglia,Rosa Odila Pereira da Silva,Torres Sérgio Aparecido,Ferreira Flaviana Bombarda de Andrade
Brazilian Dental Journal , 2002,
Abstract: The antimicrobial activity of substances used as antibacterial agents (solutions of 10% calcium hydroxide, camphorated paramonochlorophenol - PMCC, 2% chlorhexidine digluconate and 10% castor oil plant detergent) on anaerobic bacteria (Fusobacterium nucleatum ATCC 25586, Prevotella nigrescens ATCC 33563, Clostridium perfringens ATCC 13124 and Bacteroides fragilis ATCC 25285), using a broth dilution technique, was evaluated in vitro. For determination of minimum inhibitory and minimum bactericide concentrations (MIC and MBC), two culture broths, Reinforced Clostridial Medium (RCM) and supplemented Brucella, standardized inoculum and serially diluted solutions were used. All antibacterial agents presented antimicrobial activity that varied for different bacteria. There were no differences in the performance of the two broths. Chlorhexidine digluconate was the most effective, with the lowest MICs, followed by castor oil detergent, PMCC and calcium hydroxide. C. perfringens and B. fragilis were the most resistant bacteria to all agents.
The influence of asthma onset and severity on malocclusion prevalence in children and adolescents
Tanaka, Luiz Sekio;Dezan, Cássia Cilene;Fernandes, Karen Barros Parron;Ferreira, Flaviana Bombarda de Andrade;Walter, Luiz Reynaldo de Figueiredo;Cerci Neto, Alcindo;Chadi, Silvia Fernandes;
Dental Press Journal of Orthodontics , 2012, DOI: 10.1590/S2176-94512012000100007
Abstract: objective: the influence of asthma, its severity levels and onset time on malocclusion occurrence were investigated. methods: the sample was composed by 176 children/adolescents, of both genders, aged 3 to 15 years, that were divided in two groups. the asthma group (ag) enrolled 88 children/adolescents that were seen at the breathe londrina program. the asthma-free group (afg) enrolled 88 preschool and school children recruited in 2 public schools. malocclusion diagnosis was made according to who criteria (oms, 1999). results: a higher prevalence in malocclusions in asthmatic patients in mixed dentition was observed when compared to controls (p<0.05). on the other hand, these results were not observed for deciduous (p>0.05) and permanent dentition (p>0.05). a significant association was seen between asthma onset time and marked maxillary overjet (p<0.05), and open bite (p<0.05) in the mixed dentition, being both conditions more common among those that have presented the symptoms of asthma prior to 12 months of age. conclusion: the results of this study indicate that the early manifestation of asthma at first year of life can cause dentofacial changes. therefore, the prompt diagnostic of the illness, as well as the establishment of a proper therapy could improve the symptoms and chronic complications of asthma and also reduce its impact on craniofacial development.
Prevalence of developmental defects of enamel in children and adolescents with asthma
Guergolette, Rodrigho Pelisson;Dezan, Cássia Cilene;Frossard, Wanda Terezinha Garbelini;Ferreira, Flaviana Bombarda de Andrade;Cerci Neto, Alcindo;Fernandes, Karen Barros Parron;
Jornal Brasileiro de Pneumologia , 2009, DOI: 10.1590/S1806-37132009000400002
Abstract: objective: this study aimed to evaluate the prevalence of developmental defects of enamel (ddes) in relation to asthma severity, symptom onset and pharmacological treatment in pediatric asthma patients. methods: children and adolescents (68 asthma patients and 68 controls), 5-15 years of age and residents of the city of londrina, brazil, were enrolled in the study. medical and dental histories were collected through the use of a structured questionnaire. each participant underwent a dental examination in which the examiner employed the dde index. results: of the 68 asthma group subjects, 61 (89.7%) presented dental enamel defects, compared with only 26 (38.2%) of those in the control group. using multivariate logistic regression analysis, we estimated the risk of ddes in permanent dentition to be 11 times higher in pediatric subjects with asthma than in those without (or = 11.88, p = 0.0001). the occurrence of dental enamel defects correlated with greater asthma severity (p = 0.0001) and earlier symptom onset (p = 0.0001). however, dental enamel defects did not correlate with the initiation of treatment (p = 0.08) or the frequency of medication use (p = 0.93). conclusions: pediatric patients with severe, early-onset asthma are at increased risk of dental enamel defects and therefore require priority dental care.
Effect of green propolis addition to physical mechanical properties of glass ionomer cements
Troca, Valéria Barros Pereira Barbosa;Fernandes, Karen Barros Parron;Terrile, Amélia Elena;Marcucci, Maria Cristina;Andrade, Flaviana Bombarda de;Wang, Linda;
Journal of Applied Oral Science , 2011, DOI: 10.1590/S1678-77572011000200004
Abstract: objective: this study investigated the mechanical properties of glass ionomer cements (gics) combined with propolis as a natural antimicrobial substance. material and methods: typifed green propolis, as an ethanolic extract (eep) or in the lyophilized form (powder), was incorporated to specimens of ketac fil plus, chemflex and ketac molar easymix gics. for each test, 8 specimens of each material were prepared. for water sorption and solubility tests, specimens were subjected to dehydration, hydration and redehydration cycles until a constant mass was obtained for each step. measurements were recorded using a digital balance of 10-4 g precision. for the diametral tensile strength test, specimens were tested in a universal test machine at 0.5 mm/min crosshead speed after 24 h storage in deionized water. data were evaluated by one-way anova and tukey's tests (p<0.05). results: the addition of propolis to gic clearly increased water sorption compared to pure material. solubility was material-dependent and was not clearly evident. for the diametral tensile strength test, association with propolis altered negatively only chemfex. conclusion: it may be concluded that incorporation of propolis to gics alters some properties in a material-dependent condition.
An evaluation of the expression profiles of salivary proteins lactoferrin and lysozyme and their association with caries experience and activity
Felizardo, Klíssia Romero;Gon?alves, Rafael Braga;Schwarcz, Waleska Dias;Poli-Frederico, Regina Célia;Maciel, Sandra Mara;Andrade, Flaviana Bombarda de;
Revista Odonto Ciência , 2010, DOI: 10.1590/S1980-65232010000400004
Abstract: purpose: saliva contains both specific and non-specific protective factors of the immune system, such as antimicrobial proteins, which can inhibit the adhesion and viability of cariogenic microorganisms. the association between caries experience/activity and the electrophoretic profiles of salivary proteins lactoferrin and lysozyme was evaluated. methods: eighty 12-year-old students from public schools in londrina, pr, brazil, were selected and divided into two groups: group a - with decayed teeth and group b - with caries-free teeth. the parent/guardian of each child signed a consent form and filled out a questionnaire regarding the oral and systemic health of his/her child. a clinical examination to diagnose the presence or absence of dental caries, by means of the dmft index, was conducted. a total of 1 ml of saliva was collected for protein analysis using a polyacrylamide gel electrophoresis (sds-page). results: a total of 58.8% of the children were caries-inactive; in contrast, 63.3% showed caries experience. there was a slight association between lysozyme concentrations and dmft. lactoferrin was positively correlated with both dmft and restored teeth. conclusion: the quantification of lactoferrin and lysozyme enabled an assessment of possible associations with caries status, thus improving the understanding of the biological and etiological aspects of caries.
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