Abstract：
OBJECTIVES:Verify the influence of curing methods on contraction stress, stress rate, and degree of conversion (DC) of a restorative composite and on bond strength of composite restoratives. METHODS:For the stress test, composite (0.84 mm thick) was applied between two 5-mm diameter glass rods, mounted in a servohydraulic machine. Stress rate was taken by the value of stress/time at each second. DC was measured by micro-FTIR. Bond strength testing was performed using a push-out test. The C-factor in all tests was 3.0. Four curing methods were tested: continuous light (CL), soft-start (SS), and two pulse delay methods using different initial irradiances--150 mW/cm(2) (PD150) and 80 mW/cm(2) (PD80). Results were analyzed by ANOVA and Tukey's test (alpha=0.05). RESULTS:Stress values ranged from 7.9 MPa (PD80) to 10.3 MPa (CL). No statistical difference was verified among CL, SS, and PD150. PD80 presented statistically lower stress values compared to CL and SS. CL presented the highest maximum stress rate, followed by SS, PD150 and PD80. Mean DC values ranged from 54.2% (PD150) to 55.9% (PD80), with no difference observed among the methods. For the bond strength test, values ranged from 26.4 MPa (CL) to 35.5 MPa (PD150). PD150 and PD80 were both statistically superior to SS and CL. SS presented statistically higher bond strength compared to CL. CONCLUSIONS:Modulated curing methods were shown to be effective in reducing contraction stress rate and improving the strength of the bonded interface, and without compromising the DC of the restorative composite.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Cunha LG,Alonso RC,Pfeifer CS,Correr-Sobrinho L,Ferracane JL,Sinhoreti MAdoi
10.1016/j.jdent.2006.10.003subject
Has Abstractpub_date
2007-04-01 00:00:00pages
318-24issue
4eissn
0300-5712issn
1879-176Xpii
S0300-5712(06)00197-7journal_volume
35pub_type
杂志文章abstract：OBJECTIVE:Silver compounds have been used for their medical properties for centuries and in dentistry for more than a century. The aim of this review is to examine the evidence supporting the therapeutic use of silver in dentistry and the outcomes from the clinical trials, as well as mode of action and biocompatibility...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2012.03.009
更新日期：2012-07-01 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：OBJECTIVE:The aim of this study was to examine the behavior of posterior teeth restored with single-tooth restorations with intentionally high occlusal contacts. METHODS:Consent was obtained from 17 patients who were seen a total of 5 times over 3.5 years. The restorations placed were all full occlusal coverage gold r...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2015.11.006
更新日期：2016-02-01 00:00:00
abstract：OBJECTIVES:Functionalised silica sub-micron particles are being investigated as a method of delivering antimicrobials and remineralisation agents into dentinal tubules. However, their methods of application are not optimised, resulting in shallow penetration and aggregation. The aim of this study is to investigate the ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2016.11.006
更新日期：2017-01-01 00:00:00
abstract：:Twenty healthy volunteers entered a study to assess cardiopulmonary responses, as measured by pulse oximetry, following changes in posture in the dental chair and the administration of Diazemuls (diazepam) in doses sufficient to instill sedation (up to a maximum dose of 20 mg) in the volunteers to a degree such that p...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(92)90080-v
更新日期：1992-08-01 00:00:00
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:To determine the influence of two enamel conditioning techniques on buccal and lingual tooth surfaces at two different times on debonding strength and tooth damage. METHODS:The study included 50 premolars. Buccal and lingual surfaces of 10 teeth were scanned using SEM before (N=4) and after enamel condition...
journal_title：Journal of dentistry
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.jdent.2004.08.005
更新日期：2005-02-01 00:00:00
abstract：OBJECTIVES:To evaluate the incidence of prosthetic complications in implant-retained crowns made with UCLA castable abutments and to identify possible risk factors with a view to establishing recommendations to help predict the success of such restorations. METHODS:A cohort follow-up study was carried out in 71 partia...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2012.09.001
更新日期：2012-12-01 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 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: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：OBJECTIVES:To assess sustainability of shortened dental arches (SDA) by determining time to 'first restorative intervention' of teeth and time to 'tooth loss' and comparing these outcomes with complete dental arches (CDA) and SDA plus removable dental prostheses (RDP). METHODS:Data (follow-up time ranged from 27.4 (SD...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.05.013
更新日期：2013-08-01 00:00:00
abstract：OBJECTIVES:The failure of the bond between acrylic resin denture base material and resin teeth remains a significant problem. This study evaluated the tensile bond strength of specimens produced by commonly employed tooth preparation and processing methods as used in dental laboratories. METHODS:Twenty-two experimenta...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(98)00034-7
更新日期：1999-02-01 00:00:00
abstract：OBJECTIVES:An optimisation of the mixing ratio of an encapsulated glass-ionomer restorative in terms of compressive strength, working characteristics and pore distribution following mechanical mixing with different mixing machines was undertaken. METHODS:Mean compressive fracture strengths, standard deviations and ass...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2005.05.008
更新日期：2006-02-01 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：AIM:To evaluate the effect of fluoride iontophoresis on the microtensile bond strength (MTBS) between coronal dentin and two resin-based adhesive systems, and to measure quantitatively dentinal tubule occlusion. METHODS:Twelve freshly extracted intact human mandibular third molars were divided randomly into four group...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2008.04.018
更新日期：2008-09-01 00:00:00
abstract：OBJECTIVES:The purpose of this study was to determine the dentine fluoride uptake from three fluoride-containing composites (FluorEver, FluoroCore and Pertac-Hybrid) and to investigate their ability to affect the resistance of dentine to an artificial caries challenge. METHODS:Three dentine slabs were prepared from ea...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(96)00045-0
更新日期：1997-05-01 00:00:00
abstract：OBJECTIVES:The objectives of this study were to: (1) develop a novel multifunctional composite with nanoparticles of silver (NAg), 2-methacryloyloxyethyl phosphorylcholine (MPC), dimethylaminohexadecyl methacrylate (DMAHDM) and nanoparticles of amorphous calcium phosphate (NACP); and (2) investigate biofilm-inhibition ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2018.12.001
更新日期：2019-02-01 00:00:00
abstract：:A 99.5 per cent pure aluminium step-wedge served as reference for evaluating the radiopacity of 55 anterior and posterior composites. The radiopacity of all materials evaluated was compared with the radiopacity of human enamel and human dentine of equivalent sample thickness. Seventeen composites exhibited a radiopaci...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(91)90056-5
更新日期：1991-12-01 00:00:00
abstract：OBJECTIVE:This study evaluated the inhibitory effect of proanthocyanidin (PA), a natural collagen cross-linker, on soluble and matrix-bound proteases, which are responsible for progressive degradation of exposed collagen fibrils within the hybrid layer and resin-dentine bond failure over time. METHODS:The inhibitory e...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.06.002
更新日期：2013-09-01 00:00:00
abstract：OBJECTIVE:To analyse the DIAGNOdent's performance to longitudinally monitor the arrestment of non-cavitated carious lesions in occlusal surfaces. METHODS:The sample consisted of 15 children (12-13 years old) with 40 active non-cavitated lesions. The protocol for the examinations was: prophylaxis, drying teeth for 30s;...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2007.05.005
更新日期：2007-08-01 00:00:00
abstract：OBJECTIVES:Recently, a novel device to generate dental plaque in situ on a removable human enamel surface was described. The device permitted the recovery of plaque intact and undisturbed on its enamel substrate. The aim of this investigation was to determine the utility and robustness of this model for analysis of the...
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(01)00033-1
更新日期：2001-08-01 00:00:00
abstract：OBJECTIVE:The fracture of bonded ceramic to metal restorations remains a problem in clinical dental practice. The use of resin based composites to repair such fractures is generally unsatisfactory. Tribochemical technology creates a surface layer of small silica particles fused to the surface substrate. Such a layer po...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(00)00006-3
更新日期：2000-08-01 00:00:00
abstract：OBJECTIVE:The aim of this article was to assess the clinical evidence for or against acupuncture and acupuncture-like therapies as treatments for temporomandibular joint disorder (TMD). DATA:This systematic review includes randomized clinical trials (RCTs) of acupuncture as a treatment for TMD compared to sham acupunc...
journal_title：Journal of dentistry
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jdent.2011.02.006
更新日期：2011-05-01 00:00:00
abstract：OBJECTIVES:The purpose of the study was to investigate denture satisfaction related to treatment modality, age, gender, denture quality, chewing ability, denture experience and patients' attitude towards denture wearing. METHODS:In a randomized controlled clinical trial 74 patients who required immediate denture thera...
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)00012-7
更新日期：1997-03-01 00:00:00
abstract：OBJECTIVES:This study aimed to evaluate the effect of low-fluoride toothpastes with calcium glycerophosphate (CaGP) on enamel remineralization in situ. METHODS:Volunteers (n=10) wore palatal devices holding four bovine enamel blocks. The treatments involved 5 experimental phases of 3 days each according to the followi...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2014.09.001
更新日期：2014-12-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to clarify the positional relationship between the crown contour and the pulp chamber using micro-CT system for restorations of maxillary second deciduous molar. METHODS:Five maxillary second deciduous molar teeth each from the deciduous dentition and the mixed dentition periods...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2005.12.001
更新日期：2006-08-01 00:00:00
abstract：PURPOSE:Evaluate the dentine bond strength using different methods of application of opaque resins to mask dentine discoloration. MATERIALS AND METHODS:Dentine was exposed on 21 extracted molars which were assigned to 3 groups: G1: immediate dentine sealing (IDS). G2: IDS+opaque. G3: IDS with adhesive resin mixed with...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2011.07.005
更新日期：2011-10-01 00:00:00
abstract：OBJECTIVES:To validate a new questionnaire for evaluating the 'Oral aesthetic-related quality of life (OARQoL)' of prosthetically restored patients. 'OARQoL' assesses the impact of the self-perceived dental aesthetics on patients' well-being. METHODS:The 'Quality of Life associated with Dental Aesthetic Satisfaction (...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2015.08.010
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVE:Several studies have made comparisons in the dimensional accuracy of different elastomeric impression materials. Most have used two-dimensional measuring devices, which neglect to account for the dimensional changes that exist along a three-dimensional surface. PURPOSE:The aim of this study was to compare th...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2004.07.005
更新日期：2004-11-01 00:00:00
