| microbiologic and clinical findings of implants in healthy condition and with peri-implantitis. | to compare implants in healthy conditions and implants with peri-implantitis with regard to their clinical parameters and the microbiologic composition at the peri-implant sulcus, inside the implant connection, and the gingival sulcus of neighboring teeth. | 2016 | 26252036 |
| detection of subgingival periodontal pathogens--comparison of two sampling strategies. | the aim of the study is to compare detection frequency of periodontal pathogens in patients with aggressive/severe chronic periodontitis using pooled plaque samples from the deepest pockets per quadrant/per sextant. | 2016 | 26193958 |
| quantitation of biofilm and planktonic life forms of coexisting periodontal species. | complexity of oral polymicrobial communities has prompted a need for developing in vitro models to study behavior of coexisting bacteria. little knowledge is available of in vitro co-growth of several periodontitis-associated species without early colonizers of dental plaque. | 2015 | 25926392 |
| microbial leakage at the implant-abutment connection due to implant insertion maneuvers: cross-sectional study 5 years postloading in healthy patients. | the aim of this study was to test if stress on the prosthetic connection during insertion maneuvers can induce micro-warping at the implant connection. from september 2011 to july 2013, patients with implants loaded for at least 5 years that were placed with 2 different insertion implant mounters-mp (conventional) and me (mountless)-were selected from all of those who had received dental implant therapy in the past and were attending routine check-up or spontaneous visits during the study period ... | 2015 | 25536224 |
| clinical and microbiological characterization of localized aggressive periodontitis: a cohort study. | localized aggressive periodontitis (lagp) is an infectious periodontal disease which generally affects young people. recent data suggest the involvement of different bacterial species in different populations. the causative bacterial species in israel has never been identified despite a high prevalence of lagp in this population. the objectives of this study were to characterize the bacterial microbiota of periodontal pockets within an israeli lagp population who were also clinically assessed. | 2014 | 24861390 |
| microbiological assessment of the implant-abutment interface in different connections: cross-sectional study after 5 years of functional loading. | to evaluate the bacterial microflora present inside the implant connection and in the peri-implant sulcus fluid of healthy implants, and to analyze the relationships between these harboring sites for four different implant systems after at least 5 years of functional loading. | 2015 | 24665919 |
| comparative evaluation of subgingival plaque microflora in pregnant and non-pregnant women: a clinical and microbiologic study. | gingival changes in pregnancy have been attributed to changes in the subgingival biofilm related to hormonal variations. | 2013 | 23633772 |
| a double-blind randomized placebo-controlled study on the clinical and microbial effects of an essential oil mouth rinse used by patients in supportive periodontal care. | this 3-month double-blind randomized placebo-controlled study evaluated the clinical and microbial effects of an essential oil mouth rinse used as an adjunct to mechanical plaque control by patients in supportive periodontal care. | 2013 | 22998386 |
| do elderly edentulous patients with a history of periodontitis harbor periodontal pathogens? | the presence of periodontal pathogens in the oral cavity may impact implant survival. therefore, this study aimed to determine the prevalence of campylobacter rectus, porphyromonas gingivalis, aggregatibacter actinomycetemcomitans, prevotella intermedia, tannerella forsythia, treponema denticola, eikenella corrodens, and parvimonas micra in a specific elderly population with a history of periodontitis who have never worn dentures. | 2012 | 22988660 |
| empyema due to aggregatibacter aphrophilus and parvimonas micra coinfection. | | 2015 | 25138795 |
| antimicrobial activity of streptococcus salivarius k12 on bacteria involved in oral malodour. | to investigate the antimicrobial activity of the bacteriocin-producing strain streptococcus salivarius k12 against several bacteria involved in halitosis. | 2012 | 22405584 |
| [bacteria isolated from surgical infections and its susceptibilities to antimicrobial agents - special references to bacteria isolated between april 2011 and march 2012]. | bacteria isolated from surgical infections during the period from april 2011 to march 2012 were investigated in a multicenter study in japan, and the following results were obtained. in this series, 785 strains including 31 strains of candida spp. were isolated from 204 (78.8%) of 259 patients with surgical infections. five hundred and twenty three strains were isolated from primary infections, and 231 strains were isolated from surgical site infection. from primary infections, anaerobic gram-ne ... | 2014 | 25796741 |
| [bacteria isolated from surgical infections and its susceptibilities to antimicrobial agents--special references to bacteria isolated between april 2010 and march 2011]. | bacteria isolated from surgical infections during the period from april 2010 to march 2011 were investigated in a multicenter study in japan, and the following results were obtained. in this series, 631 strains including 25 strains of candida spp. were isolated from 170 (81.7%) of 208 patients with surgical infections. four hundred and twenty two strains were isolated from primary infections, and 184 strains were isolated from surgical site infection. from primary infections, anaerobic gram-nega ... | 2014 | 25549405 |
| antimicrobial susceptibility of clinical isolates of anaerobic bacteria in ontario, 2010-2011. | the local epidemiology of antimicrobial susceptibility patterns in anaerobic bacteria is important in guiding the empiric treatment of infections. however, susceptibility data are very limited on anaerobic organisms, particularly among non-bacteroides organisms. to determine susceptibility profiles of clinically-significant anaerobic bacteria in ontario canada, anaerobic isolates from sterile sites submitted to public health ontario laboratory (phol) for identification and susceptibility testing ... | 2014 | 24923267 |
| tlr4, nod1 and nod2 mediate immune recognition of putative newly identified periodontal pathogens. | periodontitis is a polymicrobial inflammatory disease that results from the interaction between the oral microbiota and the host immunity. although the innate immune response is important for disease initiation and progression, the innate immune receptors that recognize both classical and putative periodontal pathogens that elicit an immune response have not been elucidated. by using the human oral microbe identification microarray (homim), we identified multiple predominant oral bacterial speci ... | 2016 | 26177212 |
| subgingival microflora in inflammatory bowel disease patients with untreated periodontitis. | to analyze the subgingival microflora composition of inflammatory bowel disease (ibd) patients with untreated chronic periodontitis and compare them with systemically healthy controls also having untreated chronic periodontitis. | 2013 | 23060013 |
| microbiota at teeth and implants in partially edentulous patients. a 10-year retrospective study. | to determine the microbiota at implants and adjacent teeth 10 years after placement of implants with a sandblasted and acid-etched surface. | 2016 | 25827437 |
| antimicrobial activity of preparation bioaron c. | the antimicrobial activity of sirupus bioaron c, a preparation, whose main ingredient is an extract from the leaves of aloe arborescens, was tested against different microorganisms isolated from patients with upper respiratory tract infections. the experiments were performed on 40 strains: 20 strains of anaerobic bacteria, 13 strains of aerobic bacteria and 7 strains of yeast-like fungi from the genus candida and on 18 reference strains (atcc). the antimicrobial activity of bioaron c (mbc and mf ... | 2014 | 25362808 |
| microbial diversity in persistent root canal infections investigated by checkerboard dna-dna hybridization. | the aim of the present study was to investigate the composition of the root canal microbiota in endodontic failures in order to identify and quantify these microorganisms. | 2014 | 24935532 |
| n-substituted n'-(2-alkylthio-4-chloro-5-methylbenzenesulfonyl)guanidines--antibacterial, cytotoxic activities and some structure-activity relationships. | a series of n-substituted n'-(2-alkylthio-4-chloro-5-methylbenzenesulfonyl)guanidine derivatives bearing sulfonamide moiety have been screened in vitro for antibacterial activity against isolates from patients with infections of oral cavity, respiratory tract and intestinal tract. the majority of compounds exhibited good antibacterial potency. 1-[4-chloro-5-methyl-2-(4-trifluoromethylbenzylthio)benzenesulfonyl]-3-(3-sulfamoylphenyl)guanidine (13) showed very strong activity, with mic ≤ 6.2 μg/ml ... | 2015 | 26638540 |
| bacterial diversity of symptomatic primary endodontic infection by clonal analysis. | the aim of this study was to explore the bacterial diversity of 10 root canals with acute apical abscess using clonal analysis. samples were collected from 10 patients and submitted to bacterial dna isolation, 16s rrna gene amplification, cloning, and sequencing. a bacterial genomic library was constructed and bacterial diversity was estimated. the mean number of taxa per canal was 15, ranging from 11 to 21. a total of 689 clones were analyzed and 76 phylotypes identified, of which 47 (61.84%) w ... | 2016 | 27737357 |
| molecular identification of cultivable bacteria from infected root canals associated with acute apical abscess. | the objective of this study was to investigate the bacterial composition present in root canals of teeth associated with acute apical abscess by molecular identification (16s rrna) of cultivable bacteria. two hundred and twenty strains isolated by culture from 20 root canals were subjected to dna extraction and amplification of the 16s rrna gene (pcr), followed by sequencing. the resulting nucleotide sequences were compared to the genbank database from the national center of biotechnology inform ... | 2017 | 27224567 |
| advanced caries microbiota in teeth with irreversible pulpitis. | bacterial taxa in the forefront of caries biofilms are candidate pathogens for irreversible pulpitis and are possibly the first ones to invade the pulp and initiate endodontic infection. this study examined the microbiota of the most advanced layers of dentinal caries in teeth with irreversible pulpitis. | 2015 | 26187422 |
| microbial diversity in failed endodontic root-filled teeth. | persistent/secondary infections of human root canals play an important role in the failure of endodontic treatment. this study used 16s rrna sequencing to assess microbial diversity in root-filled teeth associated with failed endodontic treatment. | 2012 | 22613548 |
| macrophage cell activation with acute apical abscess contents determined by interleukin-1 beta and tumor necrosis factor alpha production. | this clinical study has investigated the antigenic activity of bacterial contents from exudates of acute apical abscesses (aaas) and their paired root canal contents regarding the stimulation capacity by levels of interleukin (il)-1 beta and tumor necrosis factor alpha (tnf-α) throughout the root canal treatment against macrophage cells. | 2014 | 25205261 |
| molecular methods for diagnosis of odontogenic infections. | historically, the identification of microorganisms has been limited to species that could be cultured in the microbiology laboratory. the purpose of the present study was to apply molecular techniques to identify microorganisms in orofacial odontogenic infections (ois). | 2012 | 22326175 |
| brain abscess potentially resulting from odontogenic focus: report of three cases and a literature review. | odontogenic foci can rarely cause intracranial infection. hematogenous spread is considered to be the most important pathophysiological mechanism of intracranial infection of odontogenic origin. to investigate the oral origin of intracranial infections, oral surgeons should understand the underlying mechanisms by which oral bacteria spread to the central nervous system. however, there have been very few reports of intracranial infection resulting from odontogenic infection. | 2017 | 28286386 |
| the use of different irrigation techniques to decrease bacterial loads in healthy and diabetic patients with asymptomatic apical periodontitis. | diabetes mellitus is a multisystem disease which weakens the human's immunity. subsequently, it worsens the sequelae of apical periodontitis by raising a fierce bacterial trait due to the impaired host response. | 2016 | 28028421 |
| microbiomes of endodontic-periodontal lesions before and after chemomechanical preparation. | this study was conducted to evaluate the microbiomes of endodontic-periodontal lesions before and after chemomechanical preparation (cmp). | 2015 | 26521147 |
| [study of association between parvimonas micra and pulp dominant pathogens in the infected root canals with chronic periradicular periodontitis]. | to study the prevalence of parvimonas micra (pm) and the associations between pm and pulp dominant pathogens in order to reflect the colonization of pm in the infected root canals with chronic periradicular periodontitis. | 2014 | 25351224 |
| effect of smokeless tobacco products on human oral bacteria growth and viability. | to evaluate the toxicity of smokeless tobacco products (stps) on oral bacteria, seven smokeless tobacco aqueous extracts (staes) from major brands of stps and three tobacco-specific n-nitrosamines (tsnas) were used in a growth and viability test against 38 oral bacterial species or subspecies. all seven staes showed concentration-dependent effects on the growth and viability of tested oral bacteria under anaerobic culture conditions, although there were strain-to-strain variations. in the presen ... | 2016 | 27756619 |
| subgingival bacterial recolonization after scaling and root planing in smokers with chronic periodontitis. | the aim of this study was to compare subgingival bacterial recolonization patterns after scaling and root planing in current smokers and non-smokers. | 2015 | 25283721 |
| evaluation of bacteriological profile in the apical root segment of the patients with primary apical periodontitis. | apical periodontitis usually results from bacterial accumulation and contamination occurring in the root-canal system, and extending beyond the apical foramen to involve the periapical tissues. literature has a paucity of the studies that stress on the division and analysis of the pulp canal segments. the reason for this disparity might be the technique used for collecting the samples from the pulp canals. hence, we carried out the present study to evaluate the microbial flora in the apical part ... | 2017 | 28050984 |
| hydrogen sulfide production from subgingival plaque samples. | periodontitis is a polymicrobial anaerobe infection. little is known about the dysbiotic microbiota and the role of bacterial metabolites in the disease process. it is suggested that the production of certain waste products in the proteolytic metabolism may work as markers for disease severity. hydrogen sulfide (h2s) is a gas produced by degradation of proteins in the subgingival pocket. it is highly toxic and believed to have pro-inflammatory properties. we aimed to study h2s production from su ... | 2015 | 25280920 |
| quantitative analysis of classical and new putative periodontal pathogens in subgingival biofilm: a case-control study. | a number of species/phylotypes have been newly implicated as putative periopathogens. the objective of this study was to explore associations among classical and new pathogens in subgingival biofilm and to assess their relative importance to chronic periodontitis. | 2015 | 25040261 |
| bacteria community study of combined periodontal-endodontic lesions using denaturing gradient gel electrophoresis and sequencing analysis. | the entire microbial population and predominant microflora of root canals (rcs) and adjacent periodontal pockets (pps) from teeth with combined periodontal-endodontic lesions were determined and compared. | 2014 | 24579762 |
| differences in bacterial saliva profile between periodontitis patients and a control cohort. | periodontitis is a multifactorial disease in which subgingival bacteria play an important role in the pathogenesis of the disease. the objective of this study was to determine if periodontitis is associated with a characteristic salivary bacterial profile. this was accomplished by comparing the bacterial profile of saliva from subjects with chronic periodontitis with that of saliva from a control cohort. | 2014 | 24303924 |
| an investigation of the presence of specific anaerobic species in necrotic primary teeth. | different microbial identification methods have shown that the microbial community profiles in endodontic infections are diverse and assorted. the aim of this study was to evaluate the frequency of selected endodontic pathogens in the pulp chambers (pcs) and root canals (rcs) of infected primary teeth using pcr methods. paired pc and rc samples were collected from 15 subjects and analyzed by pcr for the presence of filifactor alocis, fusobacterium nucleatum, parvimonas micra, porphyromonas endod ... | 2013 | 23538426 |
| evaluation of antibiotic susceptibility of gram-positive anaerobic cocci isolated from cancer patients of the n. n. blokhin russian cancer research center. | in total, 81 nonduplicate gram-positive anaerobic cocci (gpac) were involved in this study. the gpac were isolated from samples collected from cancer patients between 2004 and 2014. species identification was carried out by matrix-assisted laser desorption ionization time of flight mass spectrometry (maldi-tof ms). the majority of isolates were identified as finegoldia magna (47%) and peptoniphilus harei (28%). the susceptibility of six species of gpac was determined for eight antibiotics accord ... | 2015 | 26798518 |
| microbiological profile and antimicrobial susceptibility pattern of infected root canals associated with periapical abscesses. | the aim of this investigation was to identify microorganisms from root canals with periapical abscesses and assess the susceptibility of specific anaerobic bacteria to selected antimicrobials and their β-lactamase production. sixty root canals were microbiologically investigated. the susceptibility of anaerococcus prevotii, fusobacterium necrophorum, f. nucleatum, parvimonas micra, and prevotella intermedia/nigrescens to antimicrobials was evaluated with the etest, whereas β-lactamase production ... | 2013 | 23224675 |
| quantitation of faecal fusobacterium improves faecal immunochemical test in detecting advanced colorectal neoplasia. | there is a need for an improved biomarker for colorectal cancer (crc) and advanced adenoma. we evaluated faecal microbial markers for clinical use in detecting crc and advanced adenoma. | 2016 | 27797940 |
| bacterial colonization of the peri-implant sulcus in dentate patients: a prospective observational study. | the aim of the present study was to compare the composition of the periodontal microflora at baseline (t0) with the submucosal microflora at least 1 year after implant placement (t1) in periodontally healthy patients. | 2017 | 27558381 |
| [intramedullary abscess of the cervical spinal cord caused by advanced periodontitis:case report]. | we describe the case of a 60-year-old man with an intramedullary abscess of the cervical spinal cord caused by advanced periodontitis. he suddenly developed severe neck pain and rapidly progressive palsy of the left upper arm. t2-weighted sagittal magnetic resonance imaging(mri)revealed a hyperintense area extending from c1 to c6. gadolinium-enhanced t1-weighted mri showed a ring-enhanced lesion at the c3-4 level that was hyperintense on diffusion-weighted mri. the patient underwent drainage of ... | 2016 | 27506846 |
| microbial colonization of the peri-implant sulcus and implant connection of implants restored with cemented versus screw-retained superstructures: a cross-sectional study. | the aim of this study is to investigate peri-implant and intraconnection microflora of healthy implants restored with cemented and screwed superstructures. | 2016 | 27153291 |
| microbiota-based model improves the sensitivity of fecal immunochemical test for detecting colonic lesions. | colorectal cancer (crc) is the second leading cause of death among cancers in the united states. although individuals diagnosed early have a greater than 90% chance of survival, more than one-third of individuals do not adhere to screening recommendations partly because the standard diagnostics, colonoscopy and sigmoidoscopy, are expensive and invasive. thus, there is a great need to improve the sensitivity of non-invasive tests to detect early stage cancers and adenomas. numerous studies have i ... | 2016 | 27056827 |
| metagenomic analysis of faecal microbiome as a tool towards targeted non-invasive biomarkers for colorectal cancer. | to evaluate the potential for diagnosing colorectal cancer (crc) from faecal metagenomes. | 2017 | 26408641 |
| short-chain fatty acids in infected root canals of teeth with apical periodontitis before and after treatment. | short-chain fatty acids (scfas) are bacterial metabolic end products that may function as virulence factors. this study evaluated the occurrence of scfas in infected root canals before and after treatment. | 2015 | 25799538 |
| microbial diversity of the supra- and subgingival biofilm of healthy individuals after brushing with chlorhexidine- or silver-coated toothbrush bristles. | nanoparticulate silver has recently been reported as an effective antimicrobial agent. the aim of this clinical study was to investigate the potential changes on the oral microbiota of healthy individuals after controlled brushing with chlorhexidine- or silver-coated toothbrush bristles. twenty-four healthy participants were enrolled in this investigation and randomly submitted to 3 interventions. all the participants received, in a crossover format, the following toothbrushing interventions: (i ... | 2015 | 25581046 |
| pathogenic bacterial species associated with endodontic infection evade innate immune control by disabling neutrophils. | endodontic infections, in which oral bacteria access the tooth pulp chamber, are common and do not resolve once established. to investigate the effects of these infections on the innate immune response, we established a mouse subcutaneous chamber model, where a mixture of four oral pathogens commonly associated with these infections (endodontic pathogens [ep]), i.e., fusobacterium nucleatum, streptococcus intermedius, parvimonas micra, and prevotella intermedia, was inoculated into subcutaneousl ... | 2014 | 25024367 |
| oral cavity anaerobic pathogens in biofilm formation on voice prostheses. | a polymerase chain reaction (pcr)-based method has been used to identify oral anaerobic pathogens in biofilms on voice prostheses. the purpose of the present study was to determine the location of those pathogens inside the biofilms. | 2015 | 24677258 |
| signaling pathways activation by primary endodontic infectious contents and production of inflammatory mediators. | this study investigated the bacterial community involved in primary endodontic diseases, evaluated its ability to activate the macrophage toll-like receptor 4 receptor through p38 mitogen-activated protein kinase (mapk) and nuclear factor kappa b (nf-κb) signaling pathways, and determined the levels of endotoxins and interleukins (interleukin [il]-6 and -10) produced by endodontic content-stimulated macrophages. | 2014 | 24666896 |
| preservation of bacterial dna by human dentin. | the capacity of dentin and collagen to bind dna and protect against spontaneous and nuclease-induced degradation was evaluated individually and by the incubation of dna with nuclease-producing bacteria in a mixed culture. | 2014 | 24461411 |
| clinical and microbiological results following nonsurgical periodontal therapy with or without local administration of piperacillin/tazobactam. | we assessed if adjunct administration of piperacillin/tazobactam added clinical and microbiological treatment benefits. | 2013 | 23334268 |
| presence of oral bacterial species in primary endodontic infections of primary teeth. | knowledge of the microbial composition of deciduous endodontic infections is limited. this study aimed to evaluate the presence of the 10 oral bacterial species in samples from primary tooth root canals by using microarray technology and to determine the association of these organisms with clinical conditions. | 2013 | 24683780 |
| antibacterial activity of calcium hydroxide and chlorhexidine containing points against fusobacterium nucleatum and parvimonas micra. | up to 90% of the flora of an infected root canal consists of obligate anaerobic bacteria. however, most studies have centred on microaerophiles. this quantitative assay investigated the antibacterial effects against fusobacterium nucleatum and parvimonas micra of gutta-percha (gp) points containing either calcium hydroxide (ca(oh)(2)) or chlorhexidine (chx) compared to those of conventional gp points. | 2012 | 23077425 |
| complications of adenotonsillectomy: a case report of meningitis due to dual infection with nontypeable haemophilus influenzae and streptococcus pneumoniae, and a prospective study of the rate of postoperative bacteremia. | bacterial meningitis is a rare complication of adenotonsillectomy. we present a case of meningitis due to nontypeable haemophilus influenzae and streptococcus pneumoniae after adenotonsillectomy. pulsed-field gel electrophoresis patterns indicated that the oral cavity was the source of h. influenzae and s. pneumoniae isolated from the cerebrospinal fluid. blood culture study: as bacteremia is thought to be one of the etiologies of meningitis, we prospectively investigated the rate of bacteremia ... | 2013 | 24396981 |
| performance evaluation and bacteria analysis of afb-mfc enriched with high-strength synthetic wastewater. | in order to study the performance and bacterial communities of an anaerobic fluidized bed microbial fuel cell (afb-mfc) system, the 16s rdna gene sequencing was applied, and high-strength synthetic wastewater was treated by the afb-mfc system. the high-strength synthetic wastewater, in which the concentrations of chemical oxygen demand (cod), nitrite nitrogen, and nitrate nitrogen were above 19,000, 2,516-3,871 and 927-1,427 mg/l, was treated by the afb-mfc system. the removal efficiency of cod, ... | 2014 | 24434962 |
| gingival fluid cytokine expression and subgingival bacterial counts during pregnancy and postpartum: a case series. | the aim of this study was to assess gingival fluid (gcf) cytokine messenger rna (mrna) levels, subgingival bacteria, and clinical periodontal conditions during a normal pregnancy to postpartum. | 2013 | 22249562 |
| leveraging sequence-based faecal microbial community survey data to identify a composite biomarker for colorectal cancer. | colorectal cancer (crc) is the second leading cause of cancer-associated mortality in the usa. the faecal microbiome may provide non-invasive biomarkers of crc and indicate transition in the adenoma-carcinoma sequence. re-analysing raw sequence and metadata from several studies uniformly, we sought to identify a composite and generalisable microbial marker for crc. | 2017 | 28341746 |
| low antibiotic resistance among anaerobic gram-negative bacteria in periodontitis 5 years following metronidazole therapy. | the objective of this study was to assess antibiotic susceptibility among predominant gram-negative anaerobic bacteria isolated from periodontitis patients who 5 years prior had been subject to mechanical therapy with or without adjunctive metronidazole. one pooled sample was taken from the 5 deepest sites of each of 161 patients that completed the 5 year follow-up after therapy. the samples were analyzed by culture. a total number of 85 anaerobic strains were isolated from the predominant subgi ... | 2017 | 27988390 |
| bacteraemia due to parvimonas micra, a commensal pathogen, in a patient with an oesophageal tumour. | a man aged 53 years was admitted to our hospital due to general malaise, fever and chills for the past 24 hours. he had a history of chronic alcoholic liver disease. the blood tests showed leucocytosis with neutrophilia, lactic acidosis and acute-phase reactants. the blood cultures were positive for parvimonas micra, an anaerobic pathogen which is part of the flora of the oral cavity. there was no evidence of abscess formation in either the examination or the imaging tests, but in the work-up th ... | 2016 | 27864301 |
| in-vitro activity of sodium-hypochlorite gel on bacteria associated with periodontitis. | the aim of the present study was to assess the antimicrobial activity of a sodium hypochlorite formulation including its components against bacteria associated with periodontal disease. | 2016 | 26759339 |
| the prevalence of oral flora in the biofilm microbiota of the endotracheal tube. | the endotracheal tube (ett) is recognized as an independent factor for infection in intubated patients. the presence of biofilm contributes to the development of pneumonia. standard culturing techniques are inadequate to detect many of the bacteria present in a biofilm. delineation of the microbiota in the ett is needed to further understand infections in ventilated patients. a prospective, observational study was performed at a university, level i trauma center. twenty ett were collected at ext ... | 2016 | 27215719 |
| association of clinical parameters with periodontal bacterial haemolytic activity. | to determine whether haemolytic activity of subgingival bacteria is associated with periodontitis clinical parameters and to identify which bacteria produce the haemolysins. | 2016 | 27105613 |
| the predictive value of microbiological findings on teeth, internal and external implant portions in clinical decision making. | the primary aim of this study was to evaluate 23 pathogens associated with peri-implantitis at inner part of implant connections, in peri-implant and periodontal pockets between patients suffering peri-implantitis and participants with healthy peri-implant tissues; the secondary aim was to estimate the predictive value of microbiological profile in patients wearing dental implants using data mining methods. | 2016 | 27079924 |
| parvimonas micra: a rare cause of native joint septic arthritis. | parvimonas micra is a fastidious, anaerobic, gram positive coccus, which is found in normal human oral and gastrointestinal flora. it has also been known as peptostreptococcus micros and micromonas micros with its most recent re-classification in 2006. it has been described in association with hematogenous seeding of prosthetic joints [1,2]. several cases of discitis and osteomyelitis have been described in association with dental procedures and periodontal disease often with a subacute presenta ... | 2016 | 26911898 |
| first case of infectious endocarditis caused by parvimonas micra. | p. micra is an anaerobic gram-positive cocci, and a known commensal organism of the human oral cavity and gastrointestinal tract. although it has been classically described in association with endodontic disease and peritonsillar infection, recent reports have highlighted the role of p. micra as the primary pathogen in the setting of invasive infections. in its most recent taxonomic classification, p. micra has never been reported causing infectious endocarditis in humans. here, we describe a 71 ... | 2015 | 26485192 |
| two cases of spondylodiscitis caused by parvimonas micra. | | 2015 | 26429222 |
| delayed infection with parvimonas micra following spinal instrumentation. | delayed-onset surgical site infections following spinal instrumentation are uncommon and often present with chronic pain and implant failure. anaerobic organisms are rarely implicated and identified with difficulty in these infections. | 2015 | 26359730 |
| spinal infections caused by parvimonas micra. | | 2015 | 26344818 |
| first confirmed case of spondylodiscitis with epidural abscess caused by parvimonas micra. | parvimonas micra was renamed species as within gram-positive anaerobic cocci and rarely causes severe infections in healthy people. we report the first confirmed case of spondylodiscitis with epidural abscess caused by p. micra in a healthy women. the patient has a pain in low back and anterior left thigh. magnetic resonance imaging and computed tomography detected the affected lesion at the l2 and l3 vertebral bodies. all isolates from the surgical and needle biopsy specimens were identified as ... | 2015 | 26188420 |
| lemierre's syndrome: an unusual presentation. | | 2015 | 26117663 |
| spondylodiscitis due to anaerobic bacteria about a case of parvimonas micra infection. | parvimonas micra is a rare isolate in clinical specimens. we report a case of spondylodiscitis caused by p. micra, a rarely reported gram positive cocci. the case was an elderly patient with joint surgery and ischaemic heart disease history. infection resolved after adequate antibiotic therapy. | 2015 | 26067839 |
| bacteremic meningitis caused by parvimonas micra in an immunocompetent host. | a 61-year-old man with chronic hepatitis b and dyslipidemia visited the emergency department with a fever and severe headache. he was diagnosed with bacterial meningitis after a lumbar puncture, and blood culture revealed parvimonas micra bacteremia. although he had a history of extraction of a molar two weeks before symptom onset, there was no evidence of abscess formation on physical examination or imaging studies. he was successfully treated with oral metronidazole for 12 days after 9 days of ... | 2015 | 25977161 |
| morbidly obese patient with non-alcoholic steatohepatitis-related cirrhosis who died from sepsis caused by dental infection of porphyromonas gingivalis: a case report. | non-alcoholic steatohepatitis (nash) is associated with increased risks of developing lifestyle-related diseases including type 2 diabetes, cardiovascular disease and cerebral vessel disease. while the two-hit hypothesis and, recently, multiple parallel hits hypothesis of nash pathogenesis were proposed, further details have not emerged. recently, dental infection of porphyromonas gingivalis (p. gingivalis) has been reported as a critical risk factor for nash progression, which acts as multiple ... | 2016 | 25943712 |
| combinations of bacterial species associated with symptomatic endodontic infections in a chinese population. | to use microarrays to detect 11 selected bacteria in infected root canals, revealing bacterial combinations that are associated with clinical symptoms and signs of primary endodontic infections in a chinese population. | 2016 | 25565631 |
| parvimonas micra chest wall abscess following transthoracic lung needle biopsy. | | 2014 | 25378986 |
| hiding behind confusion: pleural empyema caused by parvimonas micra. | | 2014 | 24796229 |
| effects of systemic administration of sitafloxacin on subgingival microflora and antimicrobial susceptibility profile in acute periodontal lesions. | the aim of this study was to assess the effect(s) of systemic administration of sitafloxacin on subgingival microbial profiles of acute periodontal lesions. antimicrobial susceptibility of clinical isolates was also investigated. patients with acute phases of chronic periodontitis were subjected to clinical examination and microbiological assessment of their subgingival plaque samples by culture technique. sitafloxacin was then administered (100 mg/day for 5 days) systemically. the clinical and ... | 2014 | 24747615 |
| parvimonas micra as a causative organism of spondylodiscitis: a report of two cases and a literature review. | spondylodiscitis caused by parvimonas micra, a rarely reported infection, might be under-detected using conventional methods. this report of the detection and treatment of two cases of spondylodiscitis due to p. micra and review of the literature indicates that the use of gene sequencing methods might improve the accuracy of diagnosing this infection. | 2014 | 24680818 |
| beta-lactamic resistance profiles in porphyromonas, prevotella, and parvimonas species isolated from acute endodontic infections. | susceptibility to beta-lactamic agents has changed among anaerobic isolates from acute endodontic infections. the aim of the present study was to determine the prevalence of the cfxa/cfxa2 gene in prevotella spp., porphyromonas spp., and parviomonas micra strains and show its phenotypic expression. | 2014 | 24565649 |
| multifocal hematogenous vertebral osteomyelitis due to parvimonas micra and a subsequent pleural effusion in a diabetic patient. | | 2014 | 24315516 |
| genome sequence of parvimonas micra strain a293, isolated from an abdominal abscess from a patient in the united kingdom. | parvimonas micra is an important oral microbe that has the ability to grow and proliferate within oral biofilms and is involved in periodontal disease, leading to gingival bleeding, gingival recession, alveolar bone loss, and tooth mobility. however, occasionally these normally oral pathogens can cause infections at other sites in the body. we present the genome sequence of parvimonas micra strain a293, a smooth parvimonas micra strain isolated from an abdominal abscess from a patient at barts h ... | 2013 | 24309744 |
| effectiveness of three antimicrobial mouthrinses on the disinfection of toothbrushes stored in closed containers: a randomized clinical investigation by dna checkerboard and culture. | the aim of this in vivo study was to evaluate the efficacy of three antimicrobial solutions on the disinfection of toothbrushes after storage in closed containers. | 2014 | 23316683 |
| comprehensive microbiological findings in peri-implantitis and periodontitis. | the microbial differences between peri-implantitis and periodontitis in the same subjects were examined using 16s rrna gene clone library analysis and real-time polymerase chain reaction. | 2013 | 23294017 |
| long-term follow-up of turned single implants placed in periodontally healthy patients after 16 to 22 years: microbiologic outcome. | survival rates in implant dentistry today are high, although late failures do occur for many reasons, including peri-implant infections. the primary objective of this study is to investigate microbiota around single turned implants after 16 to 22 years. secondary objectives are to compare teeth and implants and to correlate microbiologic, radiographic, and clinical parameters. | 2013 | 22934839 |
| complication of etanercept treatment for rheumatoid arthritis--purulent pericarditis caused by a commensal organism. | the patient presented with increasing fatigue and dyspnoea. the patient had medical history of rheumatoid arthritis for which she had been taking methotrexate for the past 15 years and etanercept for the past 6 years. initial diagnosis was cardiac failure but further investigation by echocardiogram revealed a large pericardial effusion. empirical piperacillin-tazobactam was started due to moderately raised inflammatory markers. four hundred millilitre of frank pus was aspirated from the pericard ... | 2012 | 22605835 |
| 16s rrna region based pcr protocol for identification and subtyping of parvimonas micra. | the present study established a pcr protocol in order to identify parvimonas micra and to evaluate the intra-species diversity by pcr-rflp of 16s rrna partial sequence. the data indicated that the protocol was able to identify this species which could be clustered in five genotypes. | 2008 | 24031274 |
| assessment of the antibacterial, cytotoxic and mutagenic potential of the phenolic-rich hydroalcoholic extract from copaifera trapezifolia hayne leaves. | copaifera trapezifolia hayne occurs in the atlantic rainforest, which is considered one of the most important and endangered tropical forests on the planet. although literature works have described many copaifera spp., their biological activities remain little known. in the present study, we aimed to evaluate (1) the potential of the hydroalcoholic extract from c. trapezifolia leaves (cte) to act against the causative agents of tooth decay and apical periodontitis and (2) the cytotoxicity and mu ... | 2016 | 27452156 |
| herpes simplex 1 and periopathogen role in peri-implantitis. | the objectives of this study were to compare the qualitative and quantitative profiles of herpes simplex virus type i (hsv-1) in implant surfaces between participants with peri-implantitis (pi) and healthy peri-implant tissues and to quantitatively assess the relation between hsv-1 and periopathogens inside the microbiological profile associated with pi. | 2017 | 28512280 |
| emerging role of actinomyces meyeri in brain abscesses: a case report and literature review. | we describe a case of a 29-year-old man from pakistan who presented with progressive neurologic symptoms over 1 week and was found to have a right parietal cerebral abscess. neurosurgical drainage cultures showed growth of actinomyces meyeri, streptococcus intermedius, and parvimonas micra. an abscessed molar was identified as the likely port of entry and was extracted. the patient was treated with metronidazole, vancomycin, and doxycycline because of prior anaphylaxis to penicillin. at 6-month ... | 2017 | 28831384 |
| quantification by qpcr of pathobionts in chronic periodontitis: development of predictive models of disease severity at site-specific level. | currently, there is little evidence available on the development of predictive models for the diagnosis or prognosis of chronic periodontitis based on the qpcr quantification of subgingival pathobionts. our objectives were to: (1) analyze and internally validate pathobiont-based models that could be used to distinguish different periodontal conditions at site-specific level within the same patient with chronic periodontitis; (2) develop nomograms derived from predictive models. subgingival plaqu ... | 2017 | 28848499 |
| microbiological response to periodontal therapy and multivariable prediction of clinical outcome. | this study assessed the microbiological effects of a 2-phase antimicrobial periodontal therapy and tested microbiological, clinical, and biological markers as prognostic indicators for clinical success. | 2017 | 28844191 |
| mucosal microbiome dysbiosis in gastric carcinogenesis. | we aimed to characterise the microbial changes associated with histological stages of gastric tumourigenesis. | 2017 | 28765474 |
| effect of preparation method and storage period on the stability of saliva dna. | saliva is an attractive source for oral microbial detection and quantification since sampling is non-invasive and rapid. | 2017 | 28460249 |
| spondylodiscitis due to parvimonas micra diagnosed by the melting temperature mapping method: a case report. | it has been suggested that more than 100 bacterial species can be identified using only seven universal bacterial primer sets in the melting temperature (tm) mapping method and that these findings can be obtained within 3 h of sterile site collection. | 2017 | 28835212 |
| oesophageal pleural fistula presenting with parvimonas micra infection causing cervical and brain abscesses. | parvimonas micra (p. micra) infections causing spinal cord compression are extremely rare. we report an occult oesophageal pleural fistula presenting with spinal epidural and brain abscesses resulting in severe neurological deficits caused by p. micra. molecular detection proved to be instrumental in identifying the causative pathogen. essential management with decompression, drainage, antibiotics and fistula repair lead to a good outcome. | 2017 | 28648472 |
| pleural effusion due to parvimonas micra. a case report and a literature review of 30 cases. | the clinical and microbiological characteristics of infections caused by parvimonas micra is described, including 30 cases in the literature and a new case handled at the present centre. out of the 31 patients, 18 were male; mean age at diagnosis was 65.1 ± 13.0 years. infection site was the vertebral spine in 14 patients and joints and heart valves in 5 each one; pain was present in all patients with articular localization and in almost all patients with vertebral involvement. the diagnosis was ... | 2017 | 28537064 |
| acute mono-arthritis of the knee: a case report of infection with parvimonas micra and concomitant pseudogout. | parvimonas micra is a rare pathogen for septic arthritis and is known for its subacute onset. we report a case of acute arthritis of the knee caused by p. micra and pseudogout. initially, calcium pyrophosphate crystals were found in the knee, which were successfully treated with a steroid injection. only anaerobic cultures became positive. a 16s rrna pcr-analysis was necessary to identify p. micra as causative agent, a method which is never described before in similar cases. the infection was tr ... | 2016 | 28529856 |
| trends in the susceptibility of commonly encountered clinically significant anaerobes and susceptibilities of blood isolates of anaerobes to 16 antimicrobial agents, including fidaxomicin and rifaximin, 2008-2012, northern taiwan. | we investigated the antimicrobial resistance trends and profiles of clinical anaerobic isolates in northern taiwan. trends in the susceptibility of five commonly encountered clinical anaerobic isolates to seven agents from 2008 to 2012 were measured using the cochran-armitage trend test. the minimum inhibitory concentrations (mics) of 16 antimicrobial agents, including fidaxomicin and rifaximin, against anaerobic blood isolates from two medical centers were determined using the agar dilution met ... | 2014 | 24930042 |