the major objective in endodontic therapy is to disinfect the entire root canal system. this requires that the pulpal content be eliminated as sources of infection. this goal may be accomplished by mechanical instrumentation and chemical irrigation, in conjunction with medication of the root canal between treatment sessions. microorganisms and their by-products are considered to be the major ca...

Introduction: The aim of this in vitro study was to compare the antimicrobial activity and substantivity of three concentrations of doxycycline on bovine root dentin infections. Methods and Materials: Seventy dentin tubes prepared from intact bovine incisors were infected in vitro for 14 days with Enterococcus faecalis. The specimens were divided into five groups according to the used intracana...

OBJECTIVE To evaluate the in situ antibacterial activity of a mouthrinse with 0.2% Chlorhexidine (M-0.2% CHX) on undisturbed de novo plaque-like biofilm (PL-biofilm) and on salivary flora up to 7 hours after its application. METHODS A special acrylic appliance was designed, with 3 inserted glass disks on each buccal side, allowing for PL-biofilm growth. Fifteen healthy volunteers wore the app...

OBJECTIVE The purpose of the study was to examine the substantivity of a new disinfectant against biofilm formation in the dental unit waterlines. MATERIALS AND METHODS Twenty dental units were selected for the study and divided into two groups: Group A (dental unit waterlines treated with the disinfectant) and Group B (untreated dental unit waterlines). Biofilm formation was monitored in bot...

Resumen: La producción lírica de María Victoria Atencia se eleva como un todo orgánico atravesado por unos mismos componentes poéticos y técnicos. importancia lo cotidiano, la sustantividad intertextos referentes artísticos el alcance los entornos del paisanaje vital conforman algunos ejes discursivos centrales su obra. El presente trabajo indaga en trascendencia sensoriales, especial sentido v...

Uptake of chloroform into hairless rat stratum corneum from dilute aqueous solutions was studied using tape-stripping to determine amounts deposited in the skin under various environmental exposure scenarios. The length of exposure of sedated animals to the chloroform-containing medium, the frequency and duration of tape-stripping, and the number of tape-strips per location were varied to map t...