DISSERTATION APICAL PERIODONTITIS

Persistent and secondary infections are responsible for several problems in endodontic practice, including persistent exudation, persistent symptoms, flare-ups, and treatment failure. Second, most if not all root canal-treated teeth evincing persistent apical periodontitis lesions have been demonstrated to harbor an intraradicular infection 95 — Unfortunately, open-ended molecular approaches for identification of bacteria in polymicrobial infections are still time-consuming but further technological advances have the potential to expedite bacterial identification by these techniques. However, clear direct evidence is lacking as to whether or not apical actinomycosis actually comprises an independent form of extraradicular infection Clinical, radiographic, and histologic study of endodontic treatment failures. Novel microarray design strategy to study complex bacterial communities. Chavez de Paz LE.

Patients who self-reported statin use during the treatment and patients who reported never taking statins were included. Detection of bacteria in endodontic samples by polymerase chain reaction assays and association with defined clinical signs in Italian patients. Primary infections Primary infections are caused by microorganisms that colonize the necrotic pulp tissue. Fungi in endodontic infections. Different formats are available for download. This review paper focuses on the distinctive features of the microbiota associated with different types of endodontic infections and different forms of apical periodontitis.

Clone library analyses of primary endodontic infections reveal that a significant proportion of the detected taxa consist of phylotypes that remain to be cultivated and phenotypically characterized 26 Fusobacterium nucleatum Pseudoramibacter alactolyticus Filifactor alocis Fusobacterium nucleatum Prevotella spp. Subramanian K, Mickel AK.

Distinctive features of the microbiota associated with different forms of apical periodontitis

Identification of selected putative oral pathogens in primary root canal infections associated with symptoms. Alternatively, identification of pathogen patterns related to disease may allow development of tests for rapid diagnosis of selected target species. This concept is applicable to all three major oral infectious diseases — caries, marginal periodontitis, and apical periodontitis 13 — Investigation of bacterial communities associated with asymptomatic and symptomatic endodontic infections by denaturing gradient gel electrophoresis fingerprinting approach.

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dissertation apical periodontitis

Examples include Treponema species, P. Identification and potential mechanisms of resistance to antimicrobial measures. The microbiota involved with abscesses is mixed and dominated by anaerobic bacteria 19264669 Novel microarray design strategy to study complex bacterial communities.

Propionibacterium propionicum Pseudoramibacter alactolyticus Eikenella corrodens Pseudoramibacter alactolyticus Filifactor alocis Fusobacterium nucleatum Synergistes spp. Identification of bacteria in acute endodontic infections and their antimicrobial susceptibility.

: APICAL PERIODONTITIS

Actually, the structure of the microbiota may be responsible for the different clinical presentations of apical periodontitis. Primary infections are the cause of primary apical periodontitis, which can manifest itself as a chronic or acute disease. Collectively, more than different microbial taxa have been identified in endodontic samples from teeth with different forms of apical periodontitis. Virulence factors of oral treponemes.

In that case, bacteria were found in the associated lesion.

dissertation apical periodontitis

Different formats are available for download. Effects of instrumentation, irrigation and dressing with calcium hydroxide on infection in pulpless teeth with periapical bone lesions. In other words, while associations of any specific species with any form of apical periodontitis is seldom, if ever, observed, the bacterial community profiles seem to follow some patterns related to the dissertatlon presentations of apical periodontitis Bacteria colonizing the root canal are usually organized in communities similar to biofilm structures.

Table 1 Distinctive features of the microbiota associated with different types of endodontic infections. Chronic apical periodontitis Primary infections are conspicuously dominated by anaerobic bacteria organized in a mixed community. After making a selection, click one of the export format buttons.

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dissertation apical periodontitis

Products released from the bacterial biofilm in the canal accumulate and reach the periradicular tissues to give rise to an inflammatory response that ultimately leads to destruction of the periodontal ligament and bone. Unfortunately, open-ended molecular approaches for identification of bacteria in polymicrobial infections are still time-consuming but further technological advances have the potential to expedite bacterial identification by these techniques.

Overall, the bacterial density per canal varies from 10 3 to 10 8 22939 — Other bacteria found in root canal-treated teeth with apical periodontitis include Streptococcus species and some fastidious anaerobic species — P. So far, virtually all studies involved with phenotypic or genotypic identification of endodontic bacteria have followed a cross-sectional design, for obvious ethical reasons. Prevalence of yeasts in saliva and root canals of teeth associated with apical periodontitis.

Fungi are only occasionally found in primary infections, but Candida species, particularly C.

Polymerase chain reaction-based analysis of microorganisms associated with failed endodontic treatment. Bacteriologic investigation of the effects of sodium hypochlorite and chlorhexidine during the endodontic treatment of teeth with apical periodontitis. Clinical, radiographic, and histologic study of endodontic treatment failures. Showing result dissertarion – 5 of 10 swedish dissertations containing the words apical periodontitis.

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