Abstract：
:The doughing and manipulation times of a range of acrylic resin denture base polymers are presented in this study. The methods evaluated were: (i) probing following American Society for testing materials specification, F451-76; (ii) hole penetration following British Standard, 2487: 1989 and International Standard Organisation, 1567: 1988; (iii) probing using a penetrometer employing a 20 g load and 1 mm diameter needle; (iv) oscillating rheometer apparatus used at a fixed frequency of 1 Hz by sweeping through a programmed linear increase in strain. The results indicate that each of the methods is capable of evaluating the doughing and manipulation times of the unprocessed polymers. It is concluded that the Bohlin VOR Oscillating Rheometer is excellent for investigating the flow properties of denture base polymers but it cannot be recommended for a standards specification test because of the high cost. The penetrometer method has been shown to be superior to the current standards specification test and would be ideal for a packing plasticity standards test.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Mutlu G,Huggett R,Harrison Adoi
10.1016/0300-5712(92)90057-jkeywords:
subject
Has Abstractpub_date
1992-10-01 00:00:00pages
311-7issue
5eissn
0300-5712issn
1879-176Xpii
0300-5712(92)90057-Jjournal_volume
20pub_type
杂志文章abstract：OBJECTIVE:This study aimed to evaluate the addition of copper nanoparticles (CuNp) on the clinical performance of a universal adhesive system used as etch-and-rinse (ER) and self-etch (SE). METHODS:216 restorations were randomly placed in 36 subjects according to the following groups: ERcu = etch-and-rinse with 0.1% C...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2019.103219
更新日期：2019-11-01 00:00:00
abstract：OBJECTIVES:Males and females differ in their responses to many health conditions and treatments. The aim of this randomized clinical trial was to determine whether there are differences in the way that male and female edentulous elders rate their satisfaction with new mandibular implant overdentures (IODs) and conventi...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2008.02.009
更新日期：2008-05-01 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：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:This in vivo study compared the antibacterial effect of a self-etch adhesive with and without the brominated monomer 12-methacryloyloxydodecyl-pyridinium bromide (MDPB) on carious dentin after selective caries removal. METHODS:10 patients showing deep primary carious lesions at two posterior teeth without p...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2020.103555
更新日期：2020-12-17 00:00:00
abstract：OBJECTIVES:This study evaluated the quality and the remodeling of bone around commercially pure titanium implants after 3, 6, 12 and 18 month implantation periods in the sheep. METHODS:Twelve animals were implanted in the cortico-trabecular areas of both femurs. Each femur received four implants with a rough surface (...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(02)00018-0
更新日期：2002-07-01 00:00:00
abstract：:This paper reviews the effect of dentine permeability on the bond strength of dentinal bonding systems and its relationship with the morphology of dentine. Deep dentine is more permeable than superficial dentine. Demineralization of dentine surfaces with acidic conditioners significantly increases permeability with re...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/0300-5712(94)90005-1
更新日期：1994-04-01 00:00:00
abstract：OBJECTIVES:Acrylic resins, used in the manufacturing of different types of intra-oral prostheses, are vulnerable to colonisation by microorganisms which potentially endanger the general health of the prostheses, wearers. The aim of this study was to investigate the influence of a novel coating (Parylene) on surface rou...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.06.011
更新日期：2013-09-01 00:00:00
abstract：OBJECTIVE:To evaluate the effect of shading technique and thickness on the color stability and translucency of translucent zirconia after coffee thermocycling. METHODS:Specimens in different thicknesses (1; 1.5; 2 mm) (n = 4 for each thickness) were sectioned from translucent preshaded zirconia (Pre) and externally sh...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2018.03.011
更新日期：2018-06-01 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：OBJECTIVES:Proanthocyanidins (PACs) are biocompounds mimicking native collagen cross-links. The effective and practical delivery of any biocompound is pivotal for clinical usage. The aim was to investigate the dentin biomodification and effective formation of dentin-resin biointerfaces of two highly bioactive PAC-rich ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2020.103354
更新日期：2020-08-01 00:00:00
abstract：:The purpose of this study was to compare the microleakage around direct composite inlays bonded with a dual cure luting composite into Class V type inlay cavities in extracted molar teeth. Bonding methods which included two cavity cleansing regimes and three bonding treatments were used. Either pumice and rinse or rin...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(91)90080-i
更新日期：1991-10-01 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:To evaluate the effect of addition of zinc oxide and copper nanoparticles (ZnO/CuNp) into universal adhesives, on antimicrobial activity (AMA), cytotoxicity (CTX), water sorption (WS) and solubility (SO), microhardness (MH) and in vitro degree of conversion (DC), as well as resin-dentin microtensile bond str...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2019.01.012
更新日期：2019-03-01 00:00:00
abstract：OBJECTIVES:Newer tricalcium silicate cements (TSC) may offer biocompatibility with improved working properties. This study aimed to evaluate: (1) the occurrence of mineral deposition at the interface between dentine and two TSC (ProRoot(®) MTA and Biodentine(®)) in simulated body fluid, and (2) to investigate the natur...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2014.11.004
更新日期：2015-02-01 00:00:00
abstract：:Clinical experience suggests that severe alveolar bone resorption can limit the success of complete denture wearing. The loss of bone mineral with age occurs throughout the skeleton, which contributes to the high incidence of bone fractures later in life. Women are more commonly affected by some of these fractures. Th...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(89)90141-3
更新日期：1989-04-01 00:00:00
abstract：OBJECTIVE:To compare the mechanical behavior, and infer differences in fracture resistance, of mandibular molars with amalgam and composite MOD restorations to that of an unrestored molar. METHOD:Finite element models were developed for an unrestored molar and molars with MOD amalgam and composite restorations. The lo...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(00)00036-1
更新日期：2001-01-01 00:00:00
abstract：OBJECTIVE:This randomized controlled trial compared the survival of glass fibre and cast metal dental posts used to restore endodontically treated teeth with no remaining coronal wall. METHODS:Fifty-four participants (45 women) and 72 teeth were evaluated during a follow-up period of up to 3 years. Teeth were randomly...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2014.02.003
更新日期：2014-05-01 00:00:00
abstract：:The polymeric materials currently used in GIC are based on poly(acrylic acid), poly(acrylic acid-co-itaconic acid), or poly(acrylic acid-co-maleic acid). For the visible light cured (VLC) type GIC, the polymeric material is chemically modified to have pendant free-radical polymerizable double bonds, with the aqueous f...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2005.08.008
更新日期：2006-09-01 00:00:00
abstract：OBJECTIVE:The main aim of this in vitro study was to evaluate the influence of Streptococcus mutans on the corrosion of titanium. METHODS:S. mutans biofilms were formed on commercially pure titanium (CP-Ti) square samples (10mm×10mm×1mm) using a culture medium enriched with sucrose. Open circuit potential (OCP) and el...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.03.008
更新日期：2013-06-01 00:00:00
abstract：OBJECTIVES:This paper reports the findings of a study on the roles of dental nurses in cross-infection control in general dental practices and who were undergoing training for their initial certificate. The research aimed to find out what factors in their vocation gave them satisfaction, what caused stress and the bear...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(95)00094-1
更新日期：1996-09-01 00:00:00
abstract：OBJECTIVES:To evaluate the ability of a Near Infrared Light Transillumination (NILT) device to detect non-cavitated approximal caries lesions; and to compare its performance to Digital Radiography (DR). METHODS:Thirty human extracted premolars (sound to lesions into the outer one-third of dentin) were selected. Lesion...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.05.018
更新日期：2017-08-01 00:00:00
abstract：OBJECTIVES:Effective delivery of active agents to dental hard tissues is critical to product performance and pertinent to biofilm control, caries, erosion, hypersensitivity and tooth bleaching. The aim of this study was to investigate in vitro the bioadhesion and retention behaviour of non-aqueous delivery systems (NAD...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2010.06.005
更新日期：2010-09-01 00:00:00
abstract：UNLABELLED:The dentistry literature shows consensus to use the Garvie and Nicholson equation modified by Toraya to quantify the Y-TZP phase transformation. However, this method does not include the possibility of cubic phase transformation and crystallographic texture after artificial ageing, and in this case, it is po...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2014.08.010
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:The aim of this study was to characterize the surface of Y-TZP after abrasion with various airborne particles. METHODS:The Y-TZP blanks were cut into 44 discs and sintered according to the manufacturer's instructions. The specimens were treated as follows: (a) control specimens, (b) abraded with 50μm alumina...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2012.05.003
更新日期：2012-09-01 00:00:00
abstract：:Replacement of pin-retained amalgam restorations is complicated by the loss of prime pin sites and remaining pin sites posing anatomical problems. Self-threading dentine pins can be removed with an ultrasonic handpiece, and the pin site reused with a large pin. Retention of replacement pins is similar to original pins...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(93)90109-4
更新日期：1993-10-01 00:00:00
abstract：BACKGROUND:Untreated dental caries in children remains a public health challenge in poor communities. OBJECTIVES:This prospective controlled clinical trial investigated the effectiveness of a new anti-caries agent, Nano Silver Fluoride (NSF), applied once a year to arrest caries in children. METHODS:One hundred thirt...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2014.05.017
更新日期：2014-08-01 00:00:00
abstract：:Glass-ionomer cements (GIC) have been extensively used in dentistry for over 30 years. Due to their excellent biocompatibility in dental applications GIC have been formulated for medical applications. The past decade has seen some impressive advances in the development of medical GICs, however these advances have been...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2004.10.027
更新日期：2006-09-01 00:00:00
abstract：OBJECTIVES:This study investigated the in-vitro performance and fracture force of anterior implant-supported tooth-coloured fixed dental prosthesis (FDPs). Different material types with varying flexural strength and modulus of elasticity were compared with screw-retained or bonded application. MATERIALS AND METHODS:Id...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2020.103326
更新日期：2020-05-01 00:00:00
