Abstract：
:The aims were to test the hypotheses that experimental masseter muscle pain leads to recruitment and/or derecruitment of motor units at different sites within the masseter and that the patterns of change in motor unit activity differ between sites. Single motor unit (SMU) activity was recorded at two sites within the right masseter [superior/anterior, inferior/posterior (IP)] during isometric biting tasks (ramp, step level) on an intraoral force transducer in 17 participants during three experimental blocks comprising no infusion (baseline), 5% hypertonic saline infusion (pain), or isotonic saline infusion (control). A visual analog scale (VAS) was used to score pain intensity. The VAS scores were statistically significantly greater during infusion of hypertonic saline than during infusion of isotonic saline. No significant differences in force levels and rates of force change were found between experimental blocks. In comparison with isotonic saline infusion, SMUs could be recruited and derecruited at both sites during hypertonic saline infusion. The frequency of recruitment or derecruitment, in comparison with no change, was statistically significantly greater at the IP site than at the superior/anterior site. Experimental noxious masseter stimulation results in a reorganization of motor unit activity throughout the muscle, and the pattern of reorganization may be different in different regions of the muscle.
journal_name
Eur J Oral Scijournal_title
European journal of oral sciencesauthors
Malik B,Whittle T,Ogawa T,Murray GMdoi
10.1111/eos.12561subject
Has Abstractpub_date
2018-10-01 00:00:00pages
400-410issue
5eissn
0909-8836issn
1600-0722journal_volume
126pub_type
杂志文章abstract：:The aim of the present study was to examine pulp in amalgam-restored teeth of guinea pigs with respect to the presence of mercury, and to evaluate whether lining of cavities with resin modified glass ionomer cements had any effect on the penetration of mercury. Class V cavities were prepared in 63 incisor teeth of 21 ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1034/j.1600-0722.2002.21367.x
更新日期：2002-12-01 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
更新日期：2019-02-01 00:00:00
abstract：:Although interproximal attrition is considered to be limited in modern populations, it has important clinical implications. However, in contrast to occlusal attrition, proximal attrition receives limited scientific attention. The main purpose of the current study was to fill this void. Seven-hundred and sixty-five tee...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12135
更新日期：2014-08-01 00:00:00
abstract：:To explore the intrafamilial homology and longitudinal stability of colonization by early acquired mutans streptococci, genomic fingerprinting was performed on 254 strains (192 Streptococcus mutans and 62 Streptococcus sobrinus strains) collected from 16 families (16 mother-child pairs, seven fathers and four siblings...
journal_title：European journal of oral sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1034/j.1600-0722.2003.00068.x
更新日期：2003-10-01 00:00:00
abstract：:Originally identified as the active components within osteoinductive extracts derived from bone, the BMPs now are known to include a large family of proteins within the TGF-beta superfamily of growth and differentiation factors. Members of the BMP family have been determined to be key signaling molecules in embryogene...
journal_title：European journal of oral sciences
pub_type： 杂志文章,评审
doi：10.1111/j.1600-0722.1998.tb02170.x
更新日期：1998-01-01 00:00:00
abstract：:Dental plaque fluid is normally supersaturated with respect to enamel mineral but this may change to a state of undersaturation when plaque pH falls following sugar exposure, placing the adjacent enamel at risk of caries. We have determined the saturation status of the fluid in both resting and fermenting plaque follo...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1046/j.0909-8836.1999.eos107404.x
更新日期：1999-08-01 00:00:00
abstract：:The objective of this clinical study was to assess the internal and marginal accuracy of computer-aided design/computer-aided manufacturing (CAD/CAM)-generated four-unit all-ceramic posterior fixed dental prostheses (FDPs). The data were compared with the results of three-unit metal-ceramic and all-ceramic FDPs that w...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2008.00580.x
更新日期：2008-12-01 00:00:00
abstract：:The aim of this study was to visualize fluid movement through dental enamel in vivo. Fifty permanent upper central incisors, from subjects aged 10-70 yr, and 5 permanent central just-erupted incisors, from subjects aged 6-7 yr, were included in the study. An impression was obtained by vinyl polyxiloxane, and replicas ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2007.00445.x
更新日期：2007-06-01 00:00:00
abstract：:Clinical studies have shown conflicting results for the reduction of approximal caries when chlorhexidine gel has been applied either in trays or by flossing. To investigate whether these modes of treatment affect the colonization of mutans streptococci (MS) differently, we quantified MS in saliva and on various tooth...
journal_title：European journal of oral sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1046/j.0909-8836.1999.eos1070303.x
更新日期：1999-06-01 00:00:00
abstract：:The objective of this study was to investigate differences in self-perceived and dentist-determined treatment need in Australian-born and migrant residents of Australia. Participants in the National Survey of Adult Oral Health 2004-06 were categorized into six groups according to country of birth. Interview and examin...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12373
更新日期：2017-12-01 00:00:00
abstract：:The aim of this study was to determine the effect of interleukin-10 (IL-10) on the gene expression of osteoclastogenic regulatory molecules in rat dental follicle cells. Interleukin-10 is an anti-inflammatory cytokine that inhibits alveolar bone resorption, but the molecular basis for this is unknown. Alveolar bone re...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2006.00283.x
更新日期：2006-02-01 00:00:00
abstract：:Prostaglandins, especially prostaglandin E2 (PGE2), play a crucial role in the pathogenesis of periodontal disease. We have previously reported that inflammatory mediators interleukin-1 (IL-1) and tumor necrosis factor alpha (TNFalpha) increase the production of PGE2 in human gingival fibroblasts. In this study, we in...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1034/j.1600-0722.2001.00999.x
更新日期：2001-06-01 00:00:00
abstract：:The objective of this study was twofold, namely to evaluate the effectiveness of a dental clinical practice guideline on the management of asymptomatic impacted lower third molars (i) on referral rates and (ii) on dentists' change in knowledge. A two-arm cluster randomized controlled trial, with pre- and post-test ass...
journal_title：European journal of oral sciences
pub_type： 杂志文章,随机对照试验
doi：10.1111/j.1600-0722.2005.00232.x
更新日期：2005-10-01 00:00:00
abstract：:This study investigated the effect of low-power, non-thermal atmospheric pressure plasma (NT-APP) treatments, in pulsed and conventional modes, on the adhesion of resin composite to dentin and on the durability of the bond between resin composite and dentin. A pencil-type NT-APP jet was applied in pulsed and conventio...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12153
更新日期：2014-12-01 00:00:00
abstract：:Fluid and ion secretion from the submandibular gland (SMG) is mainly regulated by parasympathetic nerves. This study evaluated the effect of parasympathectomy on salivary secretion from normal and irradiated rat SMGs from 1 to 24 wk after denervation. Although stimulated salivary secretion was significantly lower in d...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12330
更新日期：2017-04-01 00:00:00
abstract：:The aim of the present study was to determine the nature of the cells associated with the formation of reparative acellular extrinsic fiber cementum (AEFC). Calcifying collagen membranes, hydroxyapatite particles and/or non-resorbable ePTFE membranes were implanted in lesions made in the periodontium of the rat mandib...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1998.tb02200.x
更新日期：1998-01-01 00:00:00
abstract：:The amelogenin proteins are required for normal enamel development, and the most abundant amelogenins expressed from alternatively spliced mRNAs are M180 and leucine-rich amelogenin protein (LRAP). The X-Chromosomal Amelogenin (Amelx) null [knockout (KO)] mouse has an enamel defect similar to human X-linked amelogenes...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2011.00882.x
更新日期：2011-12-01 00:00:00
abstract：:A derivative (EMD) of enamel matrix proteins (EMPs) is used for periodontal regeneration because EMPs are believed to induce the formation of acellular extrinsic fiber cementum (AEFC). Other reports, however, indicate that EMPs have osteogenic potential. The aim of this study was to characterize the nature of the tiss...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2006.00300.x
更新日期：2006-05-01 00:00:00
abstract：:Saliva contacting with solid surfaces in the oral cavity forms a coat termed the pellicle. However, its formation is not fully understood. Although indications for the existence of supramolecular pellicle precursors have been reported, the possible relationship between them and pellicle formation is unclear. This stud...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2004.00138.x
更新日期：2004-08-01 00:00:00
abstract：:Attention deficit hyperactivity disorder (ADHD) is a common developmental disorder. The present study tested the hypotheses that children with ADHD, particularly those exhibiting severe hyperactivity and impulsivity, have a different stress reaction (measured by salivary cortisol) during a dental recall visit and are ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2007.00423.x
更新日期：2007-02-01 00:00:00
abstract：:Human dentin mineral has been investigated by using micro-Raman spectroscopy. Fluorescence and thermal problems were largely avoided by preparing dentin samples by grinding and ultrasonic agitation in acetone. The Raman spectral features were consistent with those of impure hydroxyapatite containing CO3 and HPO4. Whil...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1996.tb00056.x
更新日期：1996-04-01 00:00:00
abstract：:It has been suggested that occlusal interferences may lead to pain and tenderness of the masticatory muscles. Tender jaw muscles are more sensitive to pressure pain, as assessed by means of pressure algometry. We tested the effects of occlusal interferences on the pressure pain threshold of the jaw muscles by means of...
journal_title：European journal of oral sciences
pub_type： 杂志文章,随机对照试验
doi：10.1111/j.1600-0722.2006.00298.x
更新日期：2006-04-01 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
doi：10.1111/j.1600-0722.2012.00985.x
更新日期：2012-10-01 00:00:00
abstract：:Tooth development is regulated through a series of reciprocal interactions between the dental epithelium and mesenchyme and requires protein products of a number of genes. It has been reported that selective tooth agenesis is associated with mutations in human MSX and PAX9 genes. Mutational analysis of the two genes w...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1034/j.1600-0722.2003.00036.x
更新日期：2003-06-01 00:00:00
abstract：:Viridans streptococci possess a family of immunologically and structurally related cell-surface proteins, termed antigen I/II, which may function as adhesins and enable oral streptococci to adhere to saliva-coated surfaces and matrix proteins. Here we used atomic force microscopy in the molecular force mode to measure...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2010.00785.x
更新日期：2010-12-01 00:00:00
abstract：:The effect of the dentifrice ingredient triclosan (2,4,4'-trichloro-2'-hydroxyldiphenyl ether) on the production of interleukin (IL)-1beta and IL-6 was studied in human gingival fibroblasts challenged with tumor necrosis factor alpha (TNFalpha) in vitro. When gingival fibroblasts were treated simultaneously with tricl...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1046/j.0909-8836.1998.eos106205.x
更新日期：1998-04-01 00:00:00
abstract：:The aim was to investigate risk indicators associated with dental erosive wear among 18-yr-old subjects in Oslo, Norway. Of 3,206 adolescents invited to participate in a screening examination for erosive wear, 1,456 were examined (giving a response rate of 45%). As part of the examination all participants completed a ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2012.00997.x
更新日期：2012-12-01 00:00:00
abstract：:Outcomes of hypnotherapy (HT), group therapy (GT) and individual systematic desensitization (SD) on extreme dental anxiety in adults aged 19-65 yr were compared by regular attendance behaviors, changes in dental anxiety and changes in beliefs about dentists and treatment after 3 yr. Treatment groups were comparable wi...
journal_title：European journal of oral sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1034/j.1600-0722.2002.21234.x
更新日期：2002-08-01 00:00:00
abstract：:Formation of crystals in the enamel space releases protons that need to be buffered to sustain mineral accretion. We hypothesized that apical cystic fibrosis transmembrane conductance regulator (CFTR) in maturation ameloblasts transduces chloride into forming enamel as a critical step to secrete bicarbonates. We teste...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12163
更新日期：2015-02-01 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
