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| 1 | Residual activity of cetrimide and chlorhexidine on Enterococcus faecalis-infected root canals显示文摘Effective final irrigation regimen is an important step in order to achieve better disinfection and ensure residual antimicrobial effects after root canal preparation. The aim of this study was to compare the residual antimicrobial activity of 0.2% cetrimide, and 0.2% and 2% chlorhexidine in root canals infected with Enterococcus faecalis. Biofilms of E. faecalis were grown on uniradicular roots for 4 weeks. After root canal preparation, root canals were irrigated with 17% ethylenediaminetetraacetic acid(EDTA) to remove the smear layer. The roots were randomly divided into three experimental groups(n526) according to the final irrigating solution: Group I, 5 mL 0.2% cetrimide; Group II, 5 mL 0.2% chlorhexidine; and Group III, 5 mL 2% chlorhexidine. Samples were collected for 50 days to denote the presence of bacterial growth. The proportion of ungrown specimens over 50 days was evaluated using the nonparametric Kaplan–Meier survival analysis. Differences among groups were tested using the log-rank test and the level of statistical significance was set at P,0.05. The highest survival value was found with 2% chlorhexidine, showing statistically significant differences from the other two groups. At 50 days, E. faecalis growth was detected in 69.23% specimens in Groups I and II, and in 34.61% specimens of Group III. There were no significant differences between 0.2% cetrimide and 0.2% chlorhexidine. Final irrigation with 2% chlorhexidine showed greater residual activity than 0.2% chlorhexidine and 0.2% cetrimide in root canals infected with E. faecalis. | Carmen María Ferrer-Luque María Teresa Arias-Moliz Matilde Ruíz-Linares María Elena Martínez García Pilar Baca | 2014 | International Journal of Oral Science2014，6，1： | 5 |
| 2 | Electron-hole plasmas in semiconductors显示文摘 | Zutavem F J Baca A G Chow W W | 2001 | IEEE Pulsed Power Plasma Science2001，，1： | 1 |
| 3 | Stress relaxation and thermal evolution of film properties in amorphous carbon显示文摘 | SULLIVAN J P FRIEDMANN T A BACA A G | 1997 | Journal of Electronic Materials1997，26，9： | 1 |
| 4 | Semiconductor wiresand ribbons for high-performance flexible electronics显示文摘 | BACA A J AHN J H SUN Y G | 2008 | Ange-wandte Chemie International Edition2008，47，30： | 1 |
| 5 | Social loafing and swimming:Effects of identifiability on individual and relay performance of intercollegiate swimmers显示文摘 | William K D Nida S A Baca L D & Latane B | 1991 | Basic and Applied Social Psychology1991，10，： | 1 |
| 6 | Fourier transform infrared spectroscopic study of surface acidity by pyridine adsorption on the M1 active phase of the MoVTe(Sb)NbO catalysts used in propane oxidation 显示文摘 | BACA M PIGAMO A DUBOIS J L | 2005 | Catalysis Communications2005，6，3： | 1 |
| 7 | Refinement of the structures of Sr3Al2O6 and the hydrogarnet Sr3 Al2 (O4 D4 )3 by Rietveld analysis of neutron powder diffraction data 显示文摘 | Chakoumakos B C Lager G A Fernandez - Baca J A | 1992 | Acta Crystallographica C1992，48，： | 1 |
| 8 | Wavelet transform for structural health monitoring: A compendium of uses and features 显示文摘 | Reda Taha M M Noureldin A Lucero J L Baca T J | 2006 | Structural Health Monitoring2006，5，3： | 1 |
| 9 | Quantification of dopant ions in polypyrrole films with electrochemical ICP-atom- ic emission spectrometry and comparison to electrochemical quartz crystal microbalance studies 显示文摘 | BRISENO A L BACA A ZHOU Q | 2001 | Anal Chim Acta2001，441，1： | 1 |
| 10 | Variability in the Echinococcus granulosus Cytochrome C oxidase mitochondrial gene sequence from livestock in Turkey and a re-appraisal of the GI-3 genotype cluster显示文摘 | Vural G Baca A U Gauci C G | 2008 | Vet Parasitol2008，154，34： | 1 |
| 11 | Predictive value of C-reac- tive protein after drug-eluting stent implantation 显示文摘 | Montone R A Fen'ante G Baca M | 2010 | Future Cardiol2010，6，2： | 1 |
| 12 | Antimicrobial activity of alexidine alone and associated with N-acetylcysteine against Enterococcus faecalis biofilm显示文摘The purpose of this study was to assess the efficacy of alexidine(ALX),alone and combined with N-acetylcysteine(NAC),in eradicating two Enterococcus faecalis strain biofilms.The biofilms of E.faecalis ATCC 29212 and the clinical isolate E.faecalis D1 were grown in the MBEC-high-throughput device for 24 h and were exposed to five twofold dilutions of ALX(2%–0.007 8%)alone and combined with100 mg?mL21NAC,for 1 and 5 min.Eradication was defined as 100%kill of biofilm bacteria.The Student’s t-test was used to compare the efficacy of the associations of the two irrigants.After 1-min contact time,ALX eradicated the biofilms at all concentrations except for 0.007 8%and 0.015 6%–0.007 8%with E.faecalis ATCC 29212 and E.faecalis D1,respectively.Similar results for eradication and concentration were obtained when it was combined with 100 mg?mL21NAC.After 5 min of contact time,ALX alone and combined with NAC eradicated all enterococci biofilms.ALX showed antimicrobial properties against the two E.faecalis strain biofilms tested at very low concentrations,and its combined use with NAC was not seen to enhance its activity. | Luiz Fernando Machado Silveira Pilar Baca María Teresa Arias-Moliz Alberto Rodríguez-Archilla Carmen María Ferrer-Luque | 2013 | International Journal of Oral Science2013，5，3： | 1 |
| 13 | Ultrathin sili- con solar microcells for semitransparent,mechanically flexible and microconcentrator module designs显示文摘 | Yoon J Baca A J Park S I Elvikis P Geddes J B Li L Kim H R Xiao J Wang S Kim T H Motala M J Ahn B Y Duoss E B Lewis J A Nuzzo R G Ferreira P M Huang Y Rockett A Rogers J A | 2008 | Nature Materials2008，7，11： | 1 |
| 14 | Wavelet transform for structural health mo-nitoring :a compendium of uses and features显示文摘 | Taha M M R Noureldin A Lucero J L Baca T J | 2006 | Structural Health Monitoring2006，5，3： | 1 |
| 15 | Characterization of Mesoporous Alumina Prepared by Surface Alumina-tion of SBA-15显示文摘 | Baca M Rochefoucaulde L A Ambroise E | 2008 | Microporous Mesoporous Mater2008，110，23： | 1 |
| 16 | Electronic Self-Organi- zation in the Single-Layer Manganite Pr1-xCa1+xMnO4 显示文摘 | Ye F Chi S Fernandez Baca J A | 2009 | Phys Rev Lett2009，103，16： | 1 |
| 17 | Transform infrared spectroscopic study of surface acidity by pyridine adsorption on the M1 active phase of the MoVTe(Sb)NbO catalysts used in propane oxidation显示文摘 | Pigamo A Dubois J L | 2005 | Catalysis Communications2005，6，3： | 1 |
| 18 | Propane oxidation on MoVTeNbO mixed oxide catalysts: study of the phase composition of active and selective catalysts显示文摘 | Baca M Pigamo A Dubois J L | 2003 | Topics in Catalysis2003，23，14： | 1 |
| 19 | Operational Experience Rolling Ultra Light Hot Strip显示文摘 | J M Munoz Baca | 1998 | Iron and Steelmaker1998，，2： | 1 |
| 20 | Photoconductive semiconductor switches显示文摘 | Loubriel G M Zutavern F J Baca A G | | 0，，02： | 1 |
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