The relationship ofBacteroides melaninogenicus to symptoms associated with pulpal necrosis

Griffee, Michael B.; Patterson, Samuel S; Miller, Chris H.; Kafrawy, Abdel H.; Newton, Carl W.

doi:10.1016/s0030-4220(80)80015-6

Cited by 149 publications

(72 citation statements)

References 13 publications

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“…This group of organisms has long been associated with the presence of endodontic symptoms (5,25,28,53). However, our analysis of this sample revealed no association of black-pigmented gram-negative rods with symptoms (OR ϭ 0.75).…”

Section: Discussioncontrasting

confidence: 56%

“…Our selection of the bacteria was based on the following criteria: organisms that are highly prevalent in root canals with necrotic pulp (black-pigmented bacteria, Fusobacterium nucleatum, Peptostreptococcus micros, and Streptococcus spp.) (51), organisms that are frequently found in patients with symptomatic endodontic infections (P. intermedia, P. nigrescens, Porphyromonas gingivalis, and Porphyromonas endodontalis) (5,20,25,28,47,57), organisms that have been detected in root canals from patients who have failed endodontic treatment (Enterococcus spp.) (36,52), and organisms that are prevalent in patients with severe periodontitis (48) and that have recently been identified in root canals by PCR (T. denticola and B. forsythus) (11,31,42).…”

Section: Methodsmentioning

confidence: 99%

“…Several studies have shown an association between painful exacerbation of periapical lesions and the presence in the root canal of specific bacteria. Black-pigmented bacteria belonging to the genera Porphyromonas, Prevotella, and Bacteroides have been cultured from root canals in a significant proportion of cases in those studies (25,53,57) and are frequently present in the same canals as members of the genera Peptostreptococcus and Fusobacterium (20,21,26). However, the findings of different studies based on culturing of canal contents vary significantly.…”

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confidence: 99%

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PCR-Based Identification of Bacteria Associated with Endodontic Infections

Fouad

Barry

Caimano³

et al. 2002

J Clin Microbiol

230

189

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PCR primers that target the bacterial 16S rRNA genes (or the tuf gene for the genus Enterococcus) were used to identify 10 putative bacterial pathogens in root canals with necrotic pulp. In addition, the associations of these microorganisms with symptoms and a history of diabetes mellitus were investigated. Microbial samples from the root canals of 24 teeth with necrotic pulp were included in the study. PCR with universal bacterial primers identified bacterial DNA in 22 specimens; the remaining 2 specimens were from intact teeth that had been traumatized 6 months prior to treatment. PCR with specific primers showed that preoperative symptoms were significantly associated with the presence of Streptococcus spp. (P < 0.001 by chi-square analysis). There was also a nonsignificant trend for symptoms to be associated with Fusobacterium nucleatum and Porphyromonas gingivalis (odds ratio, >2) and for diabetes mellitus to be associated with P. gingivalis and Porphyromonas endodontalis (odds ratio, >2). Cloning and sequencing of the universal PCR product in one specimen revealed the presence of an organism related to the genus Olsenella, which has not previously been described in endodontic infections.

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Section: Discussioncontrasting

confidence: 56%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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PCR-Based Identification of Bacteria Associated with Endodontic Infections

Fouad

Barry

Caimano³

et al. 2002

J Clin Microbiol

230

189

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“…Sundqvist 6) 는 흑색집락형성 Gram음성 혐기성 간균은 동 통을 동반하는 근관감염과 관련성이 있다고 최초로 보고하 였다. 이후 많은 연구들이 P. gingivalis와 P. endodontalis는 근관감염과 치근단 치주염의 동통과 깊은 연관성이 있 음을 입증하였다 5,9,[15][16][17] . 또한 이 두 세균은 급성감염과도 관 련해서 나타나는 것으로 알려지고 있다 5,9,14) .…”

unclassified

“…이번 연구에서 T. denticola와 P. 와 일치하고 있다. 흑색집락형성 Gram음성 혐기성 간균 중에서도 P. endodontalis와 P. gingivalis는 동통, 종창, 농 등과 같은 임상증상, 급성감염과 관련이 깊은 세균종이라고 보고되어 왔다 5,[8][9][10][12][13][14][15][16][17] . 그러나 최근 16S rDNA(RNA)gene-directed PCR의 결과에 따르면 이들 세균의 관련성에 관한 의미 가 축소되고 있는 경향이 나타나고 있다 34,38,[42][43][44][45] .…”

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Distribution of oral pathogens in infections of endodontic origin

Kim

Choi

Park

et al. 2003

J Korean Acad Conserv Dent

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It has been documented that periodontopathic bacteria are also implicated in endodontic infections. 16S rDNA gene-directed PCR was to examine the prevalence of periodontopathic bacteria including Actinobacillus actinomycetemcomitans (Aa), Prevotella intermedia (Pi), Prevotella nigrescens (Pn), Porphyromonas gingivalis (Pg), Porphyromonas endodontalis (Pe), and Treponema denticola (Td) in the root canals of 36 endodontically infected teeth having apical lesions with or without clinical symptoms like pain, swelling, and fistula.1. In 36 infected root canals, most frequently detected bacterial species was Pg (61.1%), followed by Td (52.8%) and Pe (38.9%). 2. Of 36 infected root canals, Aa was detected in 6 canals (16.7%) of the teeth, all of which showed clinical symptoms. 3. Of 36 infected root canals, Pi and Pn were found in 4 (13.9%) and 5 (33.3%), respectively. Notably, prevalence of Pn in the symptomatic teeth was 50.0%. 4. One of black-pigmented anaerobic bacteria (BPB) including Pi, Pn, Pe, and Pg was detected in all of the teeth that showed pain or especially swelling but not fistula. It was, however, found that prevalence of BPB in the asymptomatic teeth or the teeth with fistula was only 40%. 5. Pe and Pg were detected in the teeth regardless of the presence or absence of symptoms. 6. Td was detected in the teeth regardless of the presence or absence of symptoms. High prevalence of BPB in the symptomatic teeth but low in the asymptomatic teeth suggests that BPB may play an important role in the pathogenesis of periapical lesions.K Ke ey y w wo or rd ds s : PCR, BPB, infection, clinical symptom, periapical lesion, root canal ABSTRACT 치료의 성공을 좌우한다

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Culture‐Based Analysis of Endodontic Infections

Dahlén¹

2017

Endodontic Microbiology

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The relationship ofBacteroides melaninogenicus to symptoms associated with pulpal necrosis

Cited by 149 publications

References 13 publications

PCR-Based Identification of Bacteria Associated with Endodontic Infections

PCR-Based Identification of Bacteria Associated with Endodontic Infections

Distribution of oral pathogens in infections of endodontic origin

Culture‐Based Analysis of Endodontic Infections

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