Abstract：
OBJECTIVE:To analyse smear layers on human dentine using ac-impedance spectroscopy. METHODS:Dentine samples were prepared from extracted, sound, third molars. Impedance measurements were carried out on dentine samples before and after etching. After measuring, samples were examined under scanning electron microscope (SEM) to correlate electrical measurements with structure. RESULTS:Marked differences in impedance before and after etching were demonstrated. SEM investigation showed that a smear layer overlies dentine surfaces before etching, but completely disappeared after etching, leaving open dentinal tubules. CONCLUSIONS:The clinical removal of smear layers is still subjective. This objective method, based on combined ac-impedance and admittance measurement in vitro, has the potential to allow development of standardised techniques and if developed further may be of use in vivo.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Eldarrat AH,High AS,Kale GMdoi
10.1016/j.jdent.2004.05.003keywords:
subject
Has Abstractpub_date
2004-09-01 00:00:00pages
547-54issue
7eissn
0300-5712issn
1879-176Xpii
S0300571204000909journal_volume
32pub_type
杂志文章abstract：OBJECTIVES:To investigate the fatigue resistance and failure behaviour of cusp-replacing restorations in premolars using different types of adhesive restorative materials. METHODS:A class 2 cavity was prepared and the buccal cusp was removed in an extracted sound human upper premolar. By using a copy-milling machine t...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2005.02.010
更新日期：2006-01-01 00:00:00
abstract：OBJECTIVES:To carry out a systematic review and meta-analysis of studies that investigated changes in perceived quality of life following vital tooth bleaching. METHODS:Online searches (Medline, PubMed, the Cochrane database of systemic reviews and Google scholar), bibliographic, and manual searches were carried out. ...
journal_title：Journal of dentistry
pub_type： meta分析
doi：10.1016/j.jdent.2019.03.007
更新日期：2019-05-01 00:00:00
abstract：OBJECTIVES:The purpose of this study was to evaluate the in vitro effectiveness of a new bioglass-containing and two commercial desensitising toothpastes on dentinal tubule occlusion after citric acid challenge or artificial saliva (AS) immersion. METHODS:One hundred dentin discs from human third molars were used. Spe...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2010.01.007
更新日期：2010-05-01 00:00:00
abstract：OBJECTIVES:To evaluate the effect of the addition of epigallocatechin-3-gallate (EGCG) on the antibacterial and physical properties of glass ionomer cement (GIC). METHODS:A conventional GIC, Fuji IX, was used as a control. EGCG was incorporated into GIC at 0.1% (w/w) and used as the experimental group. Chlorhexidine (...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.07.014
更新日期：2013-10-01 00:00:00
abstract：UNLABELLED:Soy beverages are water extracts of whole soybeans and are often promoted as a healthy alternative to bovine milk. Little analysis has been carried out to determine the effects of soy beverages on oral health, especially their potential acidogenicity. OBJECTIVES:The aim of this study was to determine the po...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2012.05.004
更新日期：2012-09-01 00:00:00
abstract：:A dental source of infection remains the most common identifiable risk factor in infective endocarditis and this may be particularly important in patients at 'high risk'. We therefore performed a questionnaire survey of dental practitioners to assess acceptance of The British Society of Antimicrobial Chemotherapy (BSA...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(92)90032-8
更新日期：1992-12-01 00:00:00
abstract：OBJECTIVES:To measure the denaturation temperature (Td) of demineralised dentine matrix as a function of infiltration with water vs. polar solvents vs. adhesive resins. METHODS:Small discs of normal dentine were completely demineralised in 0.5M EDTA. Dried demineralised specimens were placed in water, methanol, ethano...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2007.10.003
更新日期：2008-01-01 00:00:00
abstract：OBJECTIVES:A low pH environment is created by cariogenic bacteria. This study was aimed to measure pH of carious lesions intraorally using a micro-pH sensor, and assess predominant acid-producing cariogens by qPCR to differentiate caries activities. METHODS:103 dentine lesions classified as active or arrested caries b...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2011.12.013
更新日期：2012-03-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to compare the fracture strength of three techniques used to re-attach tooth fragments in sound and endodontically treated fractured teeth with or without fiber post placement. MATERIAL AND METHODS:Ninety human lower incisors were randomly divided into three groups of 30 teeth each...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2008.01.001
更新日期：2008-04-01 00:00:00
abstract：OBJECTIVES:The objectives of this study were two-fold: (1) to determine (by surfometry) loss of deciduous and permanent enamel and dentine following 15days' exposure to a single low pH orange drink; and (2) to determine (by surfometry) loss of deciduous and permanent enamel and dentine following exposure to the product...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(99)00074-3
更新日期：2000-05-01 00:00:00
abstract：OBJECTIVES:The development of a micro plate assay for cytotoxicity testing of dental materials based on a bioassay using brine shrimp larvae (artemia salina) as sensitive organisms. METHODS:Brine shrimp larvae are commonly used for cytotoxicity assays in pharmacology. These larvae are sensitive to toxic substances. Th...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(00)00007-5
更新日期：2000-07-01 00:00:00
abstract：OBJECTIVES:The present study compared the efficacies of the self-etching Teeth Primer (TP: 4-META), and the etchants Red Activator (RA; 65% phosphoric acid) and Green Activator (GA; 10% citric acid with 3% ferric chloride), for bonding to enamel and dentine of human primary and permanent teeth, when used with 4-META/MM...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2014.01.007
更新日期：2014-04-01 00:00:00
abstract：OBJECTIVES:The main objective is the characterisation of the setting reaction in glass ionomer cements based on experimental ionomer glasses with different fluorine content and a commercial glass ionomer cement liquid by using 13C CP/MAS-NMR, 29Si, 27Al and 31P MAS-NMR spectroscopy in order to receive information speci...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2005.08.006
更新日期：2006-09-01 00:00:00
abstract：OBJECTIVE:This study aimed to assess the survival and success of glass fiber posts compared to cast metal posts in teeth without ferrule. MATERIAL AND METHODS:An equivalency, prospective, double-blind (patient and outcome evaluator) randomized controlled trial (RCT) with parallel groups was designed to compare the cli...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2020.103334
更新日期：2020-05-01 00:00:00
abstract：OBJECTIVES:The study evaluated the antibacterial effect of VIOlight (VL) Personal Travel Toothbrush Sanitizer on biofilms after toothbrush exposure to human saliva compared to Listerine Antiseptic (LA), 3% hydrogen peroxide (3%HP) and water. METHODS:Twenty toothbrush heads (n=5/Gp) were immersed in saliva and to allow...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2009.08.011
更新日期：2010-08-01 00:00:00
abstract：OBJECTIVES:Secondary caries at the tooth-restoration margins is a primary reason for restoration failure. Cracks at the margins lead to leakage which can trap bacteria, producing acids to cause caries. To date, there has been no report on developing an adhesive resin that has self-healing, antibacterial and remineraliz...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2018.05.009
更新日期：2018-08-01 00:00:00
abstract：OBJECTIVES:This study evaluated the immediate and 6-month resin-dentin micro-bond strength (microTBS) of one-step self-etch systems (Adper Prompt L-Pop [AD] 3M ESPE; Xeno III [XE] Dentsply De Trey; iBond [iB] Heraeus Kulzer) under different application modes. MATERIALS AND METHODS:Dentin oclusal surfaces were exposed ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2008.01.018
更新日期：2008-05-01 00:00:00
abstract：:OBJECTIVES.: To compare the safety and plaque removal efficacy of two oscillating/rotating/pulsating toothbrushes (Oral-B ProfessionalCaretrade mark 7000 [PC 7000] and Oral-B 3D Excel [3DE]) and a high-frequency toothbrush (Sonicare(R) Advance, Philips Oral Healthcare; SA) in a single-use, examiner-blind, three period...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
abstract：OBJECTIVES:To investigate the effectiveness of an indicator gel in revealing exposed dentine. METHODS:Teeth prepared into dentine and then stained with the indicator gel were sectioned for histological examination. RESULTS:The indicator gel was found to stain dentine and thin layers of enamel. CONCLUSION:The gel is ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(94)00010-d
更新日期：1995-12-01 00:00:00
abstract：INTRODUCTION:C. tropicalis and C. krusei have emerged as virulent species causing oral infections. Both have developed resistance to commonly prescribed azole antifungal agents. OBJECTIVE:The study aimed to determine the effect of mouth rinses containing chlorhexidine digluconate (CHX), cetylpyridinium chloride (CPC) ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2012.04.003
更新日期：2012-07-01 00:00:00
abstract：OBJECTIVES:To determine at 5 year follow-up the failure rate, wear rates and other aspects of clinical performance of direct composite inlays compared with conventional composite restorations placed incrementally. METHODS:100 matched pairs of restorations were originally entered into the trial. Each pair consisted of ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(00)00013-0
更新日期：2000-08-01 00:00:00
abstract：OBJECTIVES:Demineralized lesions in tooth enamel around orthodontic brackets are caused by acids from cariogenic biofilm. This study aimed to develop a novel antibacterial orthodontic cement by incorporating a quaternary ammonium monomer dimethylaminododecyl methacrylate (DMADDM) into a commercial orthodontic cement, a...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2014.07.006
更新日期：2014-09-01 00:00:00
abstract：OBJECTIVES:The reason for high water absorption by room temperature vulcanizing (RTV) silicone denture soft lining materials has not been demonstrated previously. An experimental room-temperature vulcanizing (RTV) silicone soft lining material which had been shown to have good mechanical properties had high water absor...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(95)00032-1
更新日期：1996-01-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to test the hypothesis that cross-polarization optical coherence tomography (CP-OCT) can be used to longitudinally monitor demineralization peripheral to orthodontic brackets in an extended clinical study. METHODS:A high-speed CP-OCT system was used to acquire 3D volumetric images ...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2014.02.011
更新日期：2014-05-01 00:00:00
abstract：OBJECTIVES:During laboratory fabrication procedures and/or clinical adjustments, pressable materials: IPS Empress and Empress 2, may be ground, polished or sandblasted. These treatments may affect their strength by introducing microscopic flaws and defects. This study investigates the effect of these procedures on the ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2003.08.006
更新日期：2004-02-01 00:00:00
abstract：OBJECTIVE:To explore the association between tooth wear and quality of life among adults in the United Kingdom, independently of sociodemographic factors and other common oral conditions. METHODS:We used data from 5654 dentate adults who participated in the 2009 Adult Dental Health Survey. Tooth wear was assessed duri...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2016.09.013
更新日期：2016-12-01 00:00:00
abstract：:This paper addresses three main themes: (1) oral health and frailty; (2) interprofessional healthcare teams; and (3) dental professionals on healthcare teams. Oral diseases exacerbate frailty, are rampant in most long-term care (LTC) facilities, and typically are not managed effectively by the medical and nursing staf...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2011.10.017
更新日期：2011-12-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to evaluate the alterations of etched deciduous dentin when submitted to different time and concentrations of sodium hypochlorite (NaOCl), using scanning electron microscopy (SEM). MATERIAL AND METHODS:Forty deciduous anterior teeth were selected, cleaned and ground until expose a f...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2005.10.003
更新日期：2006-08-01 00:00:00
abstract：:The effect of various surface treatments on the shear bond strength of composite resin to a glass-ionomer cement has been studied. Acid etching with phosphoric acid and polyacrylic acid, roughening by way of grinding or air drying, the use of a dentine bonding system and a silane coupling agent were the variables. Aci...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(89)90004-3
更新日期：1989-02-01 00:00:00
abstract：OBJECTIVES:To evaluate the influence of different surface treatments on the microtensile bond strength of a dual-cured resin composite to fiber posts. METHODS:Thirty-two glass methacrylate-based fiber posts (GC Corp.) were used in the study. Posts were divided into two groups, according to the surface pretreatment per...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2007.01.009
更新日期：2007-06-01 00:00:00
