[PDF] Top 20 Volatilidad de la tasa de cambio nominal en Colombia y su relación con algunas variables

... a self-etching primer (Transbond™ Plus) Metal lower incisor brackets were bonded directly to each tooth with two different color- change adhesives (TransbondPlus and Grengloo™) ... See full document

... two-step self-etching bonding agent with a hydrophilic aqueous primer that should be air-dried for elimination of water and solvent contents before adhesive ...one-step ... See full document

... study, using the caries infiltrant (ICON) before bonding did not significantly change the bond strength compared to the other groups, although the bond strength was lower ... See full document

... shear bond strength/SBS testing, ...face using 600-grit silicon carbide (SiC) paper in order to standardize the smear layer ...sile bond strength/ μ TBS testing, ...wet-ground ... See full document

... the bond strength to an existing composite resin ...chemically bond to the inorganic silica filler particles of the composite resin restoration, while the other functional group would polymerize with ... See full document

... tooth color has always been prob- lematic in ...tooth color in vivo: visual determination and in- strumental measurement ...visual color selection and specification ...objective color matching ... See full document

... no change in shear bond strength of brackets after one month ...shear bond strength of the groups containing QAS and the control ...bracket bond strength to tooth ... See full document

... Contamination with saliva and blood can reduce the dentin bond strength of total- and self-etching adhe- sive systems. [4-7] A thin film formed by blood proteins and macromolecules such as ... See full document

... the primer of Scotchbond Multi-Purpose adhesive. They noted that this primer had esthetics/color similar to those of the control ...on color and mechanical ...on color or flexural ... See full document

... of bonding is clinically favorable ...enamel- etching and decrease its efficacy ...acid- etching or Er:YAG laser irradiation showed a higher frequency of adhesive fractures at the resin-bracket ... See full document

... acid, etching with hydrofluoric acid, silanation, and application of a variety of bonding resins or adhesion ...acid etching has no effect on composite restoration surfaces; therefore, creating ... See full document

... Optibond bonding agent was applied to the prepared buccal surface of the specimens in group 2 (Tetric Flow) and cured for 20 ...seconds using an LED curing ... See full document

... to avoid leaking of the cement. The respective cement was filled into the cylinder opening. A steel screw (BN 617, Bossard; Zug, Switzerland) with a diameter match- ing the inner diameter of the acrylic cylinder was ... See full document

... total bond failure rate between direct and indirect techniques, also when comparing the upper and lower ...indirect bonding were found when evaluating crowding ... See full document

... by using one specific sample type; thus, deciduous mandibular incisors were excluded from the ...in bond strength between bovine deciduous inci- sors (21%) and permanent incisors (35%) ...that ... See full document

... that Orthodontic brackets bonded to teeth with an ACP containing composite material failed at significantly lower forces than brackets bonded to teeth with conventional resin-based composite Ortho- dontic ...low ... See full document

... 'self-etch' adhesives viz 'Strong', ‘Mild’, ‘Ultra mild’ 53 . 'Strong' self-etch adhesives have a very low pH (< 1) and exhibit a bonding mechanism and interfacial ultra-morphology ... See full document

... by bonding brackets with composite resin Transbond XT (3 M Unitek), to unetched and slightly wet tooth ...Excess bonding material was removed carefully, and the brackets were light-cured for 40 seconds (10 ... See full document

... The specimens were tested for shear bond strength using an INSTRON UNIVERSAL TESTING MACHINE (No 3382). The acrylic block was fixed to the lower fixed jaw with the brackets perpendicular to the floor ... See full document

... sile bond strength value decreased in the total-etching groups (G2 and ...to etching technique, the results showed that for the groups without air-abrasion (G1 e G2) the total-etching ... See full document