| CONTENIDO GENERAL DEL CURSO | CONTENIDO DE LA UNIDAD | BIBLIOGRAFÍA DE ESTA SECCIÓN | ARTÍCULOS REVISADOS | PALABRAS CLAVE | SECCIONES: 1ª 2ª 3ª 4ª |
CONTENIDO
DE LA UNIDAD 14:
13.1. Estado actual de la microbiología endodóntica 13.1.1. Flora microbiana 13.2. Control microbiológico 13.2.1. Frotis 13.2.2. Cultivos 13.2.2.1. Medios 13.2.2.2. Técnica 13.2.2.3. Limitaciones del cultivo 13.2.2.4. Usos del cultivo en endodoncia
13.3. Asepsia y antisepsia en endodoncia 13.3.1. Protocolo Aséptico. 13.3.2. Esterilización 13.4. Utilización del control microbiológico en clínica e investigación 13.4.1. Desinfectantes 13.4.2.1. Categorías de utilización 13.4.2.2. Desinfectante ideal
13.4.2.3. Medicamentos intraconductos 13.4.2.4. Curación provisional
13.4.3. Antimicrobianos específicos en endodoncia 13.4.3.1. Pacientes de alto riesgo 13.4.3.2. Antibióticos de elección 13.4.4. Investigación en endodoncia
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1 Gnobiótico: Técnica por la cual se obtienen animales estériles, libres de microbios. 2 Patogenicidad: Capacidad de causar una enfermedad 3 Virulencia: Capacidad de causar síntomas agudos (dolor, sensibilidad a la percusión, hinchazón y/o trayecto fistuloso. 4 Sinergismo: Concurso activo y concertado de varios elementos para realizar una función: syn (gr.) [con, unión] + érgon (gr.) [trabajo, función (órganon órgano)] + -ia (gr.)
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REGRESAR A LA SECCIÓN DE GENERALIDADES DE MICROBIOLOGÍA EN ENDODONCIA
RESUMEN DEL ARTÍCULO CITADO:
ABSTRACT
Positive and Negative Bacterial Associations Involving Dialister pneumosintes in Primary Endodontic Infections
José F. Siqueira, Jr., DDS, MSc, PhD, and Isabela N. Rocas, DDS, MSc
Dialister pneumosintes is an anaerobic Gram-negative rod that has been recently implicated as a candidate endodóntico pathogen. In this study, samples taken from abscessed teeth and infected root canals associated with asymptomatic or symptomatic periradicular lesions were examined for the occurrence of bacterial associations involving D. pneumosintes. DNA was extracted from the samples, and the presence of D. pneumosintes and 16 other bacterial species was determined by means of species- specific nested polymerase chain reaction. Positive and negative associations involving D. pneumosintes being found in a sample from endodóntico infection inco-infection with one of the other target species. The association between the pairs containing D. pneumosintes and the occurrence of pain also was evaluated. D pneumosintes was always detected in mixed infections with at least two of the other target species. D. pneumosintes was positively as associated with Treponema detiocola, Porphyromonas endodontalis, Fusobacterium nucleatum, Peptostreptococcus micros, Campylobacter rectus, Prevotella intermedia, T. pectinovorum, and Actinomyces israelii. No pair containing D pneumosintesis was found to be significantly associated with symptomatic case (p>0.01). The findings of this study lend considerable support to the notin of D. pneumosintes being and important endodóntico pathogen, usually in a mixed infection. Positive associations of this species with other highly prevalent species, such as T. denticola and P. endodontalis, suggest that bacterial synergism can occur and there by play an important role in the pathogenesis of different forms of periradicular lesions.
Siqueira, J.F. et al. POSITIVE AND NEGATIVE BACTERIAL ASSOCIATIONS INVOLVING DIALISTER PNEUMOSINTES IN PRIMARY ENDODONTIC INFECTIONS. JOE. Jul 2003;29(7):438-441 (Biblioteca FES Iztacala)
Investigado por Rita Vanessa Quintana Santiago, Alumna del grupo 2622 (2008) FES Iztacala, UNAM
| CONTENIDO GENERAL DEL CURSO | CONTENIDO DE LA UNIDAD | BIBLIOGRAFÍA DE ESTA SECCIÓN | ARTÍCULOS REVISADOS | PALABRAS CLAVE | SECCIONES: 1ª 2ª 3ª 4ª |