Abstract：
:Streptococcus oligofermentans is a novel strain of oral streptococcus that can specifically inhibit the growth of Streptococcus mutans. The aims of this study were to assess the growth of S. oligofermentans and the ability of S. oligofermentans to inhibit growth of Streptococcus mutans at different pH values. Growth inhibition was investigated in vitro using an interspecies competition assay. The 4-aminoantipyine method was used to measure the initial production rate and the total yield of hydrogen peroxide in S. oligofermentans. S. oligofermentans grew best at pH 7.0 and showed the most pronounced inhibitory effect when it was inoculated earlier than S. mutans. In terms of the total yield and the initial production rate of hydrogen peroxide by S. oligofermentans, the effects of the different culture pH values were as follows: pH 7.0 > 6.5 > 6.0 > 7.5 > 5.5 = 8.0 (i.e. there was no significant difference between pH 5.5 and pH 8.0). Environmental pH and the sequence of inoculation significantly affected the ability of S. oligofermentans to inhibit the growth of S. mutans. The degree of inhibition may be attributed to the amount of hydrogen peroxide produced.
journal_name
Eur J Oral Scijournal_title
European journal of oral sciencesauthors
Liu Y,Chu L,Wu F,Guo L,Li M,Wang Y,Wu Ldoi
10.1111/eos.12102subject
Has Abstractpub_date
2014-02-01 00:00:00pages
57-61issue
1eissn
0909-8836issn
1600-0722journal_volume
122pub_type
杂志文章abstract：:The aim of this study was to investigate the relationship between dental fluorosis and dental caries among western Saharan refugee children. The western Saharan child population is characterized by adverse living conditions, an unbalanced diet, poor oral hygiene habits, and a concentration of fluoride in the drinking ...
journal_title：European journal of oral sciences
pub_type： 杂志文章,多中心研究
doi：10.1111/j.1600-0722.2008.00583.x
更新日期：2008-12-01 00:00:00
abstract：:The aim of this study was to explore a possible association between health status and self-reported adverse effects related to dental amalgam restorations. A group of 50 consecutive patients (index group), referred for complaints self-related to dental amalgam restorations, was compared with a control group of individ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1997.tb00206.x
更新日期：1997-06-01 00:00:00
abstract：:The purpose of this study was to investigate the efficacy of an etchant in titanium bonding. The aqueous etchant consisted of 0, 5, or 10 wt% ammonium hydrogen fluoride (AHF) in combination with 0, 0.03, 0.3, or 3 wt% cupric chloride (CC). The two primers used were a phosphate-methacrylate primer and a thiophosphate-m...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.0909-8836.2004.00090.x
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abstract：:Recent studies have shown that bone morphogenetic protein 9 (BMP-9) can induce osteogenic differentiation in human periodontal stem cells and human periodontal ligament fibroblasts (PDLFs). Bone morphogenetic protein 9 may be used in periodontal tissue regeneration because of its potent osteoinductive ability. Human p...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12336
更新日期：2017-04-01 00:00:00
abstract：:This study measured the polymerization contraction of a resin composite cured at three levels of energy density, each attained at six different levels of power density. The polymerization contraction of the composite was recorded by the method of the deflecting disc (n = 5) for 1 h following the start of irradiation. ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2005.00239.x
更新日期：2005-10-01 00:00:00
abstract：:Patients with cardiac implantable electrical devices should take precautions when exposed to electromagnetic fields. Possible interference as a result of proximity to electromagnets or electricity flow from electronic tools employed in clinical odontology remains controversial. The objective of this study was to exami...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12183
更新日期：2015-06-01 00:00:00
abstract：:Fluoride is associated with a decrease in the incidence of dental caries, but excessive fluoride intake during tooth enamel formation can result in enamel fluorosis. Fluorosed enamel has increased porosity, which has been related to a delay in the removal of amelogenin proteins as the enamel matures. This delay in pro...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2006.00303.x
更新日期：2006-05-01 00:00:00
abstract：:The Oral Impacts on Daily Performance (OIDP) instrument was translated into Norwegian and reviewed for cultural and conceptual equivalence by a group of bilingual academics. A sample of employees from the University of Bergen completed the Norwegian OIDP frequency questionnaire twice. A total of 173 and 108 subjects p...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2005.00225.x
更新日期：2005-08-01 00:00:00
abstract：:In order to explore the bony changes in the mandibular body during prefunctional intraosseous eruption of premolars, 18 dogs aged from 8 to 16 wk at the beginning of experimental period, were given two intraperitoneal injections of oxytetracycline (50 mg/kg and 35 mg/kg 2 wk later) and 2 wk later a final injection of ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1998.tb02210.x
更新日期：1998-01-01 00:00:00
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journal_title：European journal of oral sciences
pub_type： 杂志文章
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更新日期：2003-06-01 00:00:00
abstract：:Plasma arc light units for curing resin composites have been introduced with the claim of relatively short curing times. The purpose of the present study was to measure and compare elution of monomers from an experimental BisGMA-TEGDMA resin and a commercial resin composite when cured with a halogen unit and when cure...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1034/j.1600-0722.2000.108004341.x
更新日期：2000-08-01 00:00:00
abstract：:The aim of this study was to determine water sorption, water solubility, dimensional change caused by water storage, residual monomers, and possible cytotoxic effects of heat-polymerized carbon-graphite fibre-reinforced composites with different fibre loadings based on methyl methacrylate/poly(methyl methacrylate) (MM...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2011.00826.x
更新日期：2011-06-01 00:00:00
abstract：:Self-etching primers and adhesives contain very hydrophilic methacrylate monomers that result in high water sorptions by their polymers. Water sorption plasticizes the polymers and lowers their mechanical properties. The purpose of this work was to rank the hydrophilicity of a series of acidic primers by their Hoy's s...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2007.00452.x
更新日期：2007-06-01 00:00:00
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journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2009.00634.x
更新日期：2009-06-01 00:00:00
abstract：:Fast eating has been shown to increase the risk of overweight in both children and adults. The objectives of the present study were to investigate the correlation between chewing rate and the number of chews per mouthful and to evaluate if they were associated with the weight of meal intake. Thirty healthy subjects, a...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12583
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journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1046/j.0909-8836.1999.eos107612.x
更新日期：1999-12-01 00:00:00
abstract：:The purpose was to investigate if antigenic fragments of aggrecan and cartilage oligomeric matrix protein (COMP) are detectable by enzyme-linked immunosorbent assay in lavage fluids from the temporomandibular joint (TMJ) and to examine if the relative content of these cartilage markers changes during development of os...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1997.tb00254.x
更新日期：1997-08-01 00:00:00
abstract：:The expression of HLA Class II antigens on the surfaces of immunocompetent cells and the presence of CD1a+ cells (Langerhans cells) are important components of antigen presentation. Quantitative variations in HLA class II expression on antigen-presenting cells play a role in immune regulation. An indirect immunofluore...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1995.tb00161.x
更新日期：1995-08-01 00:00:00
abstract：:The present study evaluated the failure risks of an endodontically treated premolar with severely damaged coronal hard tissue and restored with either a computer-aided design/computer-aided manufacturing (CAD/CAM) ceramic endocrown or a classical crown configuration. Two, three-dimensional finite element maxillary pre...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2009.00704.x
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journal_title：European journal of oral sciences
pub_type： 杂志文章
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journal_title：European journal of oral sciences
pub_type： 杂志文章
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journal_title：European journal of oral sciences
pub_type： 临床试验,杂志文章,随机对照试验
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abstract：:The aim of this double-blind study was to enumerate the total number of living and dead bacteria on defined tooth areas during the application of antibacterial mouthrinses. After prophylaxis, 40 students refrained from all oral hygiene measures for 3 d, during which they rinsed with a phenolic compound (Listerine), an...
journal_title：European journal of oral sciences
pub_type： 临床试验,杂志文章
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abstract：:The levels of salivary mutans streptococci and caries experience were used as predictors for caries incidence in 3 groups of pre-school children from areas with different levels of natural and topical fluoride exposure. Altogether 1022 children, 4-5 years of age at baseline, were examined according to the WHO-criteria...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1996.tb00136.x
更新日期：1996-10-01 00:00:00
abstract：:Paraffin-stimulated saliva samples were collected from 140 children 3- and 4-yr old attending nine nursery schools in Latvia. The salivary levels of mutans streptococci were rated from zero to 3 after being cultured on a commercially available strip selective for these microorganisms. Of the children, 29.3% were rated...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1995.tb00171.x
更新日期：1995-08-01 00:00:00
abstract：:The effect of the addition 0.3% triclosan to a non-fluoride and fluoride toothpaste was tested in an in vitro demineralisation model. This model comprised bovine dentin specimens overlaid with acidogenic Streptococcus mutans suspensions in agarose at two different concentrations of cells. Before the experiments, subsu...
journal_title：European journal of oral sciences
pub_type： 杂志文章
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更新日期：1999-04-01 00:00:00
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pub_type： 杂志文章
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journal_title：European journal of oral sciences
pub_type： 杂志文章
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更新日期：2011-10-01 00:00:00
abstract：:To investigate change in oral health in relation to use of dental services, a random sample of 45- to 54-yr-old subjects from Adelaide, South Australia, was surveyed in 2004-2005 (n = 986, response rate = 44.4%). Service use and a global oral-health transition (GOHT) statement were collected over 2 yr. Worsening in or...
journal_title：European journal of oral sciences
pub_type： 杂志文章
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更新日期：2012-10-01 00:00:00
abstract：:The aim of this study was to investigate the effect of polymerization time and polymerization temperature on the residual methyl methacrylate (MMA) content of two heat-cured and two autopolymerized denture base polymers. Gas chromatography was used to determine the residual MMA content of three test specimens of each ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1046/j.0909-8836.1998.eos106109.x
更新日期：1998-02-01 00:00:00
