Results 51 to 60 of about 4,342 (172)

Numerical Study of Thermal Effect on the Friction of Piston-cylinder Contact in an Internal Combustion Engine

Tribology in Industry, 2018
For the different operating regime of an internal combustion engine, the compartment ‘Piston-Ring-Liner’ represents the largest share of frictional power loss.
M. Belahcene, R. Mazouzi, M. Lounis
doaj   +1 more source

Periodontitis and Periodontal Conditions in Systemically Healthy Children and Adolescents

Journal of Clinical Periodontology, EarlyView.
ABSTRACT Objective To answer the PICoS question ‘in systemically healthy children and adolescents (Population), what are the main features of periodontitis, necrotising periodontal diseases (NPD) and other periodontal conditions (periodontal abscesses, endo‐periodontal lesions, traumatic occlusal forces, prosthesis‐ and tooth‐related factors ...
Inbar Eshkol‐Yogev, Nagore Ambrosio, Cheryl Somani, Elena Figuero, Lior Shapira, Janet Davies   +5 more
wiley   +1 more source

Quantitative detection ofPorphyromonas gingivalis fimAgenotypes in dental plaque [PDF]

FEMS Microbiology Letters, 2004
We developed quantitative fimA genotype assays and applied them in a pilot study investigating the fimbrial genotype distribution of Porphyromonas gingivalis in European subjects with or without chronic periodontitis. P. gingivalis was found in 71% and 9% of the samples from patients and healthy subjects, respectively.
van der Ploeg, J R, Giertsen, E, Lüdin, B, Mörgeli, C, Zinkernagel, A S, Gmür, R   +5 more
openaire   +3 more sources

Porphyromonas gingivalis: a clonal pathogen?

Journal of Oral Microbiology, 2011
The introduction of multilocus sequence typing (MLST) in infectious disease research has allowed standardized typing of bacterial clones. Through multiple markers around the genome, it is possible to determine the sequence type (ST) of bacterial isolates
Morten Enersen
doaj   +1 more source

Systemic, Lifestyle and Environmental Modifying Factors in the Pathogenesis of Periodontitis

Journal of Periodontal Research, EarlyView.
A variety of impacting factors in the pathogenesis of periodontitis exist, including systemic, lifestyle, and environmental factors. This review highlights the manifold mechanistic aspects of the link between the pathogenesis of periodontitis, addressing these numerous factors to supplement the long‐standing knowledge of the progression of the disease.
Groeger Sabine Elisabeth, Zhou Yuxi, Yong Jiawen, Wang Lei, Ruf Sabine, Meyle Joerg   +5 more
wiley   +1 more source

HA2-FimA DNA Vaccine Treats Experimental Periodontitis.

Oral health & preventive dentistry
To study the therapeutic effect of hemagglutinin-2 and fimbrial (HA2-FimA) vaccine on experimental periodontitis in rats.The first batch of rats was divided into two groups and immunised with pure water or pVAX1-HA2-FimA at the age of 6, 7, and 9 weeks.
Zhang, Huijie, Wang, Yueyue, Wang, Zhu, Fu, Nanqing, Wang, Xinrui, Bai, Guohui   +5 more
openaire   +2 more sources

Efficacy of FimA antibody and clindamycin in silkworm larvae stimulated with Porphyromonas gulae

Journal of Oral Microbiology, 2021
Objective: Porphyromonas gulae, a major periodontal pathogen in animals, possesses fimbriae that have been classified into three genotypes (A, B, C) based on the diversity of fimA genes encoding fimbrillin protein (FimA). P.
Sho Yoshida, Hiroaki Inaba, Ryota Nomura, Masaru Murakami, Hidemi Yasuda, Kazuhiko Nakano, Michiyo Matsumoto-Nakano   +6 more
doaj   +1 more source

The Keystone‐Pathogen Hypothesis Updated: The Role of Porphyromonas gingivalis in Periodontitis

Journal of Periodontal Research, EarlyView.
Porphyromonas gingivalis orchestrates a coordinated manipulation of immune and inflammatory responses in periodontal tissues which leads to the generation of a dysbiotic, subgingival biofilm community, and progression of periodontitis. The type 9 secretion system, lipid A modification, and the formation of outer membrane vesicles are important ...
Mike A. Curtis, James A. Garnett, Richard P. Darveau   +2 more
wiley   +1 more source

Periodontitis and rheumatoid arthritis—Global efforts to untangle two complex diseases

Periodontology 2000, EarlyView.
Abstract Understanding the impact of oral health on rheumatoid arthritis (RA) will inform how best to manage patients with both periodontitis and RA. This review seeks to provide an update on interventional and mechanistic investigations, including a brief summary of European Research programs investigating the link between periodontitis and RA. Recent
Isabel Lopez‐Oliva, Jennifer Malcolm, Shauna Culshaw   +2 more
wiley   +1 more source

Prevalence of Porphyromonas gingivalis fimA genotypes in Japanese children

Journal of Oral Science, 2012
Porphyromonas gingivalis FimA fimbriae have been classified into 6 genotypes (types I-V and Ib) based on the diversity of the fimA genes encoding the fimbrial subunits. We investigated the prevalence of fimA genotype in Japanese children. Dental plaque specimens were obtained from 400 subjects (age; 2 to 15 years), including 134 with healthy gingiva ...
Fumiko, Hayashi, Mitsugi, Okada, Yuki, Oda, Taro, Kojima, Katsuyuki, Kozai   +4 more
openaire   +3 more sources