Abstract：
:This method was designed to quantify root resorption on human premolar root surfaces induced by orthodontic forces by volume. Light (25 g) or heavy (225 g) orthodontic forces were applied to 20 first maxillary premolars in 10 human subjects. The contralateral teeth of the subjects served as controls. All teeth were extracted after 28 d of experimentation and prepared for imaging. A pair of stereo scanning electron microscopy (SEM) images (+/-3 degrees ) of resorption craters was captured and imported into an image analysis software package. The images were aligned and grayscale depth maps of the craters were generated. Correction for errors due to residual tilt and curvature of the cementum surface using shading correction was performed. Thresholding was used to obtain a measure of both the cementum surface height and the average depth of the crater. The depth of the crater was the difference in these values. Crater volumes were obtained by multiplication of the average of this difference by area of the crater. Calibration of this volumetric measurement against standardized calculated known volumes on metallic rods showed good accuracy and reproducibility. In the experimental teeth, heavy forces caused threefold more resorption than light forces (P < 0.01). There was also more root resorption evident in the experimental teeth compared with the control teeth in both the light and heavy force groups.
journal_name
Eur J Oral Scijournal_title
European journal of oral sciencesauthors
Chan EK,Darendeliler MA,Petocz P,Jones ASdoi
10.1111/j.1600-0722.2004.00118.xsubject
Has Abstractpub_date
2004-04-01 00:00:00pages
134-9issue
2eissn
0909-8836issn
1600-0722pii
EOS118journal_volume
112pub_type
临床试验,杂志文章,随机对照试验abstract：:p21(WAF1/CIP1) is a cyclin-dependent kinase (Cdk) inhibitor. This protein may function during development as an inducible growth inhibitor that contributes to cell cycle exit and differentiation. The expression pattern of p21 during mouse embryogenesis was correlated with terminal differentiation of multiple cell line...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1998.tb02160.x
更新日期：1998-01-01 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：:We examined the effect of warm air-drying on the enamel bond strengths and the surface free-energy of three single-step self-etch adhesives. Bovine mandibular incisors were mounted in self-curing resin and then wet ground with #600 silicon carbide (SiC) paper. The adhesives were applied according to the instructions o...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12061
更新日期：2013-08-01 00:00:00
abstract：:Dentin bonding using the total-etch method has been claimed to be technique-sensitive. The aim of this study is to examine the effect of acid-etch variations on the dentin demineralization and interfacial structure of the adhesive-dentin bond using a differential staining technique. Single Bond adhesive with 35% phosp...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2004.00127.x
更新日期：2004-06-01 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：: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 aim of the present investigation was to map the presence of prophylactic measures in organized Swedish dental health care systems, focusing on personnel working with children and adolescents. The study was conducted by sending a questionnaire to all public dental clinics in Sweden (830 clinics in all). The results...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1996.tb00115.x
更新日期：1996-08-01 00:00:00
abstract：:Genetic factors underlie the susceptibility and the resistance to dental fluorosis (DF). The A/J (DF susceptible) and 129P3/J (DF resistant) mouse strains have previously been used to detect quantitative trait loci (QTLs) associated with DF on chromosome (Chr) 2 and Chr 11. In the present study, increased marker densi...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2011.00868.x
更新日期：2011-12-01 00:00:00
abstract：:The aim of this study was to assess post-trial treatment costs, clinical outcomes [decayed, missing or filled surfaces (DMFS) scores], and utilization of dental services among adolescents who had participated in a randomized clinical trial (RCT) in Pori, Finland, in 2001-2005. At baseline the children were 11-12 yr of...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2010.00726.x
更新日期：2010-06-01 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：:The aim of this study was to evaluate the postoperative consequences of chorda tympani reclining during middle ear surgery for otosclerosis. Electrogustometric taste thresholds were measured at 11 loci on the tongue and the soft palate in 14 patients before surgery, and 8 d, 1 month and (in some cases) 6 months after ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2008.00556.x
更新日期：2008-10-01 00:00:00
abstract：:The variability of gap formation due to different operators and bonding agents around dentin-bonded composites in cylindrical cavities (internal diameter, 3 mm; depth, 1 mm; n = 210) was evaluated in vitro. Seven dentists evaluated two experimental bonding systems (A & B) and one commercial product (C) by each treatin...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.0909-8836.2003.00076.x
更新日期：2003-12-01 00:00:00
abstract：:The aim of this investigation was to study the intraoral pH response on tooth surfaces in relation to dental erosion during and after drinking a sugar-free cola-type soft drink. Six different methods of drinking were tested in a randomized order: holding; short-sipping; long-sipping; gulping; nipping; and sucking. Two...
journal_title：European journal of oral sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1111/j.1600-0722.2004.00172.x
更新日期：2004-12-01 00:00:00
abstract：:The aim of this study was to compare the oral health-related behaviors of unemployed people with those of employed people and to assess whether they differ according to the length of unemployment. This study is part of the Health 2000 Survey in Finland. The cross-sectional data were based on interviews and questionnai...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12276
更新日期：2016-08-01 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：:Temporomandibular joint (TMJ) histology was investigated in 8 female Scandinavian moose. 5 were 1-year-old with a carcass weight (cw) of 125-140 kg, and 3 were 2-years-old (160-175 kg cw). The condylar articular surface consisted of a connective tissue lining with parallel collagen fibres. Numerous blood vessels were ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1996.tb00146.x
更新日期：1996-10-01 00:00:00
abstract：:The purpose of this study was to compare fluid flow rates across dentin surfaces treated with four conditioners. The effect of conditioning on the micro-shear bond strengths of glass ionomer cement (Fuji IX GP) and resin-based adhesives (Single Bond 2 or Clearfil SE Bond) were also investigated. Under a simulated pres...
journal_title：European journal of oral sciences
pub_type： 杂志文章,随机对照试验
doi：10.1111/j.1600-0722.2007.00483.x
更新日期：2007-12-01 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：:The aim of this study was to characterize the kinematics and masseter muscle activation in unilateral posterior crossbite. Eighty-two children (8.6 +/- 1.3 yr of age) with unilateral posterior crossbite and 12 children (8.9 +/- 0.6 yr of age) with normal occlusion were selected for the study. Electromyography (EMG) an...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2008.00601.x
更新日期：2009-04-01 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 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 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：:This study tested the fluoride-release rate and the root caries inhibitory effect of dental adhesives. In phase 1, the fluoride released from samples (n = 5) of the adhesives A (Optibond Solo), B (One-up Bond F), C (Prime & Bond NT), D (Tenure Quick), and also of the controls [+] (glass-ionomer cement) and [-] (non-fl...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2005.00214.x
更新日期：2005-06-01 00:00:00
abstract：:This study evaluated the effect of different concentrations of 2-hydroxyethyl methacrylate (HEMA) on the inhibition of matrix metalloproteinase-2 (MMP-2) in vitro. Mouse gingival explants were cultured overnight in Dulbecco's modified Eagle's minimal essential medium, following which the expression of secreted enzymes...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2008.00591.x
更新日期：2009-02-01 00:00:00
abstract：:The purposes of this survey were to describe dental health in a group of alcoholics and to analyze the influence of social background, dental health behavior and alcohol-related variables on dental health among alcoholics. The dental health in a group of consecutively admitted alcoholics (n = 195) was described with r...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1996.tb00099.x
更新日期：1996-08-01 00:00:00
abstract：:The potential problems of DNA extraction from formalin-fixed paraffin-embedded (FFPE) tissue samples and amplification efficiency of Human papilloma virus (HPV) may occur in the molecular studies of head and neck squamous carcinoma (HNSCC). The aim of this study was to compare HPV detection rate in FFPE tissues of ora...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12746
更新日期：2020-12-01 00:00:00
abstract：:As a result of their presence throughout the mouth in the submucosa or between muscle fibers, minor salivary glands secrete directly and continuously into the oral cavity, providing mucosal surfaces with highly glycosylated proteins that are active in bacterial aggregation and in oral tissue lubrication. In this study...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2009.00700.x
更新日期：2010-02-01 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：:Low concentrations of fluoride have a beneficial effect on enamel and dentin de- and remineralization. After fluoride treatments, such as topical applications, rinses or dentifrices, salivary fluoride concentrations decrease exponentially in a biphasic manner to very low concentrations within a few hours. For treatmen...
journal_title：European journal of oral sciences
pub_type： 杂志文章,评审
doi：10.1111/j.1600-0722.1997.tb00231.x
更新日期：1997-10-01 00:00:00
abstract：:Substantial evidence exists to suggest a role for T-cells in periodontal disease. As yet, however, the T-cell receptors remain to be characterised at the molecular level. The expression and the nucleotide sequence of genes from the T-cell receptor beta variable (TCRBV) gene families 2, 6 and 8 were analyzed in periodo...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1997.tb02136.x
更新日期：1997-10-01 00:00:00
