Abstract:
OBJECTIVE:To evaluate the content of inorganic particles and the flexural strength of new condensable composites for posterior teeth in comparison to hybrid conventional composites. METHOD:The determination of the content of inorganic particles was performed by mass weighing of a polymerized composite before and after the elimination of the organic phase. The volumetric particle content was determined by a practical method based on Archimedes' principle, which calculates the volume of the composite and their particles by differential mass measured in the air and in water. The flexural strength of three points was evaluated according to the norm ISO 4049:1988. RESULTS:The results showed the following filler content: Alert, 67.26%; Z-100, 65.27%; Filtek P 60, 62.34%; Ariston pHc, 64.07%; Tetric Ceram, 57.22%; Definite, 54.42%; Solitaire, 47.76%. In the flexural strength test, the materials presented the following decreasing order of resistance: Filtek P 60 (170.02 MPa)>Z-100 (151.34 MPa)>Tetric Ceram (126.14 MPa)=Alert (124.89 MPa)>Ariston pHc (102.00 MPa)=Definite (93.63 MPa)>Solitaire (56.71 MPa). CONCLUSION:New condensable composites for posterior teeth present a concentration of inorganic particles similar to those of hybrid composites but do not necessarily present higher flexural strength.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Adabo GL,dos Santos Cruz CA,Fonseca RG,Vaz LGdoi
10.1016/s0300-5712(03)00049-6keywords:
subject
Has Abstractpub_date
2003-07-01 00:00:00pages
353-9issue
5eissn
0300-5712issn
1879-176Xpii
S0300571203000496journal_volume
31pub_type
杂志文章abstract:OBJECTIVES:To investigate repairs of direct restorations by a group of Dutch general dental practitioners (GDPs) and its consequences on longevity of restorations. METHODS:Data set was based on dental records of patients attending 11 general dental practices (24 Dentists) in the Netherlands. Patients that received Cla...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2017.06.002
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVES:Methacrylic compounds such as 2-hydroxyethyl methacrylate (HEMA), triethylene glycol dimethacrylate (TEGDMA) and bisphenol A glycerolate (1 glycerol/phenol) dimethacrylate (Bis-GMA) are largely present in auto- or photopolymerizable composite resins. Since the polymerization reaction is never complete, these...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2006.07.008
更新日期:2007-03-01 00:00:00
abstract:OBJECTIVES:The aim of this in vivo study was to evaluate the effects of a home-bleaching agent on the color and surface properties of four tooth-colored restorative materials. METHODS:Two composite resins (a nano-hybrid and a packable), a polyacid-modified composite and a conventional glass-ionomer were tested. Specim...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2009.01.003
更新日期:2009-05-01 00:00:00
abstract::The Annual Conference of the British Association of Teachers of Conservative Dentistry (BATCD) was held in Sheffield on 16 and 17 September 1993. The main programme addressed educational issues in three areas: the undergraduate/vocational-trainee interface, the teaching of implants in the undergraduate curriculum, and...
journal_title:Journal of dentistry
pub_type:
doi:10.1016/0300-5712(94)90069-8
更新日期:1994-10-01 00:00:00
abstract:OBJECTIVES:To investigate the effect of impregnation of poly(ethyl methacrylate) and tetrahydro-furfuryl methacrylate (PEM/THFM) polymeric delivery system with chlorhexidine or fluconazole on its shear bond strength (SBS) and water sorption. METHODS:For SBS testing, 16 PEM/THFM discs impregnated with chlorhexidine (CH...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2012.04.027
更新日期:2012-08-01 00:00:00
abstract:OBJECTIVES:To examine if there is a difference in possible sleep bruxism activity (SB) in subjects with or without attrition-type tooth wear. METHODS:Sixteen individuals with pronounced attritional-type tooth wear were compared with sex and aged matched controls without tooth wear by means of measurement of electromyo...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2015.10.002
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:To investigate in vitro a range of differently characterised toothpastes with respect to their efficacy in an erosion/abrasion setting with special emphasis on the role of the particulate ingredients. METHODS:Human enamel samples were erosively demineralised with citric acid (2min, 6×/day; 0.5%, pH 2.5; 10 ...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2016.09.005
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVES:Reattachment of the avulsed enamel-dentine coronal fragment to the remaining tooth structure has become an accepted clinical alternative to a resin composite build-up for the restoration of crown fractured teeth. Since little knowledge exists as to the pulpal response to this procedure, this study was design...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/s0300-5712(98)00003-7
更新日期:1998-07-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to compare the behavior of two new, low-shrinkage hybrid composites (Aelite LS and Inten-S) with a microfilled (Heliomolar) and a hybrid composite (Filtek Z250), in terms of polymerization contraction stress and microleakage. METHODS:Maximum contraction stress after 10 min was recor...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2004.01.014
更新日期:2004-07-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to measure the satisfaction of patients with respect to the aesthetics of veneer restorations (VRs) and to identify potential factors influencing their satisfaction. MATERIALS AND METHODS:One hundred and eighty VRs of three different types (direct composite, indirect composite and ...
journal_title:Journal of dentistry
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0300-5712(96)00067-x
更新日期:1997-11-01 00:00:00
abstract:OBJECTIVES:Approximately 1.5 million panoramic radiographs are taken annually in the general dental service in England and Wales. The aim of this review was to assess the clinical role of panoramic radiology in the diagnosis of diseases associated with the teeth and to consider its value in routine screening of patient...
journal_title:Journal of dentistry
pub_type: 杂志文章,评审
doi:10.1016/0300-5712(95)00055-0
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVES:To measure the tooth whitening effects delivered immediately after brushing with silica-based toothpastes containing blue covarine in vitro and in vivo. METHODS:Salivary pellicle coated human extracted teeth were brushed with either a slurry of a toothpaste containing blue covarine (BC), a formulation conta...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2017.10.014
更新日期:2017-12-01 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:UNLABELLED:Silver diammine fluoride (SDF) is used as an anticaries agent; however, its mode of action is uncertain, whether chemical, physical, mechanical or antibacterial. As a preliminary study, the effect of SDF on hydroxyapatite (HAp) and gelatin (as a chemically-representative protein) was examined. METHODS:2.5mg...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2011.06.008
更新日期:2011-09-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to assess the prevalence of direct restorations in posterior teeth in children aged 12, from a birth cohort, and to test the association between the quality of the restorations and individual variables experienced in the life cycle. METHODS:All live-born children in Pelotas, in 200...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2019.103183
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVES:The tooth-resin bond is the weak link of restoration, with secondary caries as a main reason for failure. Calcium phosphate-containing resins are promising for remineralization; however, calcium (Ca) and phosphate (P) ion releases last only a couple of months. The objectives of this study were to develop the...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2015.06.009
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:Evaluate erosive potential of beverages, using exposure times from 3 to 30 min, and to analyse the relationship between erosion and several drink parameters. METHODS:pH, calcium, phosphate and fluoride concentration, saturation, titratable-acidity to pH 5.5 and the viscosity of sixteen beverages were measur...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2012.09.004
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to investigate the impact of moderate and severe hypodontia and amelogenesis imperfecta on the quality of life and self-esteem of affected adult patients. METHODS:Forty one adult patients (aged 18-45 years) with clinical and radiological diagnoses of moderate to severe hypodo...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2013.06.004
更新日期:2013-08-01 00:00:00
abstract:OBJECTIVES:Despite increasing evidence supporting selective caries tissue removal, the technique is not adopted by most dentists, one possible reason being that patients might reject it. We aimed to assess patients' preferences for selective versus complete excavation, and to identify predictors of this preference. ME...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2016.01.006
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVE:To study the combined effect of simulated occlusal loading and plaque-derived biofilm on the interfacial integrity of dental composite restorations, and to explore whether the effects are modulated by the incorporation of sucrose. METHODS:MOD-class-II restorations were prepared in third molars. Half of the s...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2017.08.009
更新日期:2017-11-01 00:00:00
abstract:OBJECTIVES:Full-ceramic systems can be produced by different techniques (layering, heatpressing, CAD/CAM) and have various compositions with different crystalline contents that may affect the optical properties of laminate restorations. METHODS:A total of 60 specimens were prepared from e.max Press, e.max CAD, Empress...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2012.11.013
更新日期:2013-08-01 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:OBJECTIVE:This study investigated the mechanism of action at the interface between a commercially available Y-TZP and its veneering ceramic after final firing. Particular attention was paid, from a microstructural point of view, to evaluating the effects of different surface treatments carried out on the zirconia. MET...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2014.07.019
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVES:To compare the accuracies of 4 laboratory scanners using a new custom-made block for complete-arch implant rehabilitation. MATERIALS AND METHODS:A block comprised 4 cylinders, with 2 in the anterior (0° angulation) and 2 in the posterior region (45° distal angulation) (Experimental group) and a standard blo...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2020.103476
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:An accurate evaluation of the extent of dental caries and possible progress of the lesion from enamel into dentin is very important in clinical dentistry. Dentists need an imaging technology that can noninvasively and reliably quantify the extent of caries. This study aimed to evaluate the effectiveness of no...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2012.10.007
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVES:Manufacturers are adding fluoride (F) to calcium-containing chewing gums to further promote enamel remineralization. The aim of this study was to assess the effect of a chewing gum containing phosphoryl oligosaccharides of calcium (POs-Ca) and fluoride on remineralization of enamel subsurface lesions, in a d...
journal_title:Journal of dentistry
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jdent.2011.08.009
更新日期:2011-11-01 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:This study concerned the temperature and linear dimensional change of heat-cured acrylic resin in the two-stage processing technique for complete dentures. METHODS:Thermocouples were incorporated in the acrylic resin for recording temperatures. Measurements between reference marks were made by a high-resolu...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/0300-5712(95)91190-x
更新日期:1995-08-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the effect of a zinc-based particle with ionic liquid as filler for an experimental adhesive resin. METHODS:The ionic liquid 1-n-butyl-3-methylimidazolium chloride (BMI.Cl) and zinc chloride (ZnCl2) were used to synthesize 1-n-butyl-3-methylimidazolium trichlorozincate ...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2020.103477
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVES:To evaluate the efficacy of different bleaching systems on artificially created stained-remineralized caries lesions; and to assess the susceptibility of the bleached lesions to further demineralization. METHODS:Human enamel specimens were sectioned, polished, demineralized, and randomly divided into six gr...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2018.12.008
更新日期:2019-02-01 00:00:00