Abstract：
PURPOSE:Develop a methodology to correlate microtensile bond strength (microTBS) and leakage within the same site of a specimen and evaluate the predominate debond and leakage pathways. MATERIALS AND METHODS:A Class II (MO) slot cavity was prepared in 37 extracted human molars and restored with indirect resin composite restorations. The restored teeth were thermocycled 300X between 5 and 55 degrees C and then stained with silver. Two specimens per tooth were obtained by diamond saw sectioning for measurement of leakage (microm) and microtensile bond strength (MPa) at the gingival wall and then tested for association with regression analysis. Scanning electron microscopy techniques and energy dispersive spectroscopy (EDS) were used to evaluate the debond and leakage pathways. RESULTS:Association between leakage and bond strength was not significant (t=1.31, p=0.198). All 74 samples debonded within the joint, predominantly at the hybrid layer-adhesive resin region with only one specimen including a small portion of resin cement in the debond pathway. Secondary and backscatter imaging and EDS analysis showed leakage in all samples that involved the hybrid layer. CONCLUSION:This study demonstrates a feasible method for evaluating leakage and bond strength at the joint interface within the same specimen.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Guzmán-Ruiz S,Armstrong SR,Cobb DS,Vargas MAdoi
10.1016/s0300-5712(00)00065-8keywords:
subject
Has Abstractpub_date
2001-02-01 00:00:00pages
145-53issue
2eissn
0300-5712issn
1879-176Xpii
S0300-5712(00)00065-8journal_volume
29pub_type
杂志文章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：OBJECTIVE:This study evaluated the effects of surface preparation and the application time of adhesives on the resin-dentine bond strengths with universal adhesives. METHODS:Sixty molars were cut to exposed mid-coronal dentine and divided into 12 groups (n=5) based on three factors; (1) adhesive: G-Premio Bond (GP, GC...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2016.02.001
更新日期：2016-04-01 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：OBJECTIVES:The dysbiotic oral microbiome plays a key role in the pathogenesis of caries in children. Topical application of casein phosphopeptide-amorphous calcium phosphate containing fluoride (CPP-ACP/F) is an effective treatment modality for children with caries (CC). Hitherto the mechanism by which CPP-ACP/F module...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2021.103582
更新日期：2021-01-12 00:00:00
abstract：OBJECTIVES:To determine the visual 50:50% acceptability thresholds for lightness, chroma and hue for dental ceramics using CIEDE2000(K(L):K(C):K(H)) formula, and to evaluate the formula performance using different parametric factors. METHODS:A 30-observer panel evaluated three subsets of ceramic samples: lightness sub...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2011.09.007
更新日期：2011-12-01 00:00:00
abstract：BACKGROUND:There is no consensus on whether incisal coverage is a risk or a protective factor in preparations for ceramic veneers. OBJECTIVE:The aim of this systematic review and meta-analysis was to evaluate the survival rates of preparation designs for ceramic veneers with and without incisal coverage. METHODS:Prim...
journal_title：Journal of dentistry
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jdent.2016.06.004
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVES:Ultrasound may offer a possible alternative to rotary instruments for removing bone. This study was undertaken to analyse in vitro the various factors that influence the cutting of bone by an ultrasonic chisel. STUDY DESIGN:A block of bovine femur was moved in a longitudinal direction under a stationary ult...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(99)00044-5
更新日期：2000-01-01 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: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:To investigate the prevalence of Combination Syndrome, and to investigate if provision of a mandibular removable partial denture has any influence on the prevalence of Combination Syndrome. METHOD:Patients attending Kings College London Dental Institute, Guys Hospital who wore maxillary conventional complet...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2019.01.016
更新日期：2019-03-01 00:00:00
abstract：OBJECTIVES:After removal of dentine caries lesions, cavity lining has been advocated. Non-clinical data support this approach, but clinical data are sparse and ambiguous. We aimed at evaluating the benefits and harms of cavity lining using meta-analysis and Trial Sequential Analysis. DATA:We included randomized clinic...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2015.07.017
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVES:To investigate, in a sample of probable sleep bruxers with and without temporomandibular disorder (TMD) pain, the presence and relationships between clinical jaw-muscle symptoms, and test their associations with jaw-muscle electromyographic (EMG) activity during sleep. METHODS:Pain, unpleasantness, tirednes...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2019.05.016
更新日期：2019-06-01 00:00:00
abstract：OBJECTIVES:This study investigated whether novel liposome formulations loaded with transforming growth factor β1 (TGF-β1) could promote the odontogenic differentiation of human dental pulp stem cells (hDPSCs) for dentine-pulp regeneration. METHODS:0-100 ng/mL of liposomal TGF-β1 was prepared using the thin-film hydrat...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2020.103501
更新日期：2020-12-01 00:00:00
abstract：OBJECTIVE:The aim of this long-term follow-up was to collect up to 17-year survival data of different metal post-and-core restorations with a covering crown. METHODS:At initiation of the study, a controlled clinical trial, single tooth was provided with an artificial covering crown, by 18 operators. Restorations under...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2007.07.006
更新日期：2007-10-01 00:00:00
abstract：OBJECTIVES:To determine the perceptibility and acceptability of tooth color differences using computer-generated pairs of teeth with simulated gingival displayed on a calibrated color monitor using appropriate signal detection theory methodology (SDT). METHODS:Twelve dental professionals (four from each of the followi...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2007.03.006
更新日期：2007-07-01 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:The purpose of this study was to investigate the effect of tooth age on colour adjustment potential of resin composite restorations in human teeth. METHODS:Twenty extracted human premolars with an A2 shade, extracted for orthodontic reasons from younger patients (20-28yrs) (younger teeth) and periodontal re...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2014.09.007
更新日期：2015-02-01 00:00:00
abstract：OBJECTIVES:To investigate the effect of saliva substitutes on enamel erosion in vitro. METHODS:A total of 204 bovine enamel samples were embedded in acrylic resin and allocated to 17 groups (n=12). The specimens were eroded in an artificial mouth (3 days; 6×30 s/days, flow rate: 2 ml/min) using citric acid (pH: 2.5). ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2014.03.012
更新日期：2014-06-01 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：:Tooth wear attributed to the physical wear of teeth by clenching and grinding (attrition) has been described previously in alcoholic patients. However, the pattern of wear seen in the series of cases reported here is more consistent with chemical damage (erosion) than attrition. A possible mechanism for this process i...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(89)90168-1
更新日期：1989-10-01 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：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:Astra Tech implants have been used to provide implant supported overdentures for 25 people, 13 with paired stud retention, 10 with paired magnetic retention and two with magnetic retention on three fixtures. RESULTS:The first case was completed in June 1990 and the last in May 1992. Of the 52 fixtures which...
journal_title：Journal of dentistry
pub_type： 临床试验,杂志文章
doi：10.1016/s0300-5712(97)87698-1
更新日期：1997-01-01 00:00:00
abstract：OBJECTIVES:This clinical follow-up evaluated the long-term outcome of full-mouth rehabilitations with adhesively bonded all-ceramic restorations in patients suffering from amelogenesis imperfecta (AI) or affected by extensive tooth wear including a loss of the vertical dimension of occlusion. MATERIALS AND METHODS:Inc...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.12.011
更新日期：2018-03-01 00:00:00
abstract：OBJECTIVES:This study was performed to determine the compositions of commercial temporary restorative resins and to evaluate the leachability of plasticizer and residual monomer from them. METHODS:The chemicals in four commercial temporary restorative resins (Dura Seal, Fit Seal, Plast Seal Quick, and Poly Seal) were ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2003.12.004
更新日期：2004-05-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to investigate the influence of a fiber post on the fracture mechanics of zirconia crowns inserted over endodontically treated teeth with different extent of coronal damage. METHODS:Endodontically treated human molars with three types of coronal damage received fiber posts before ce...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2008.03.014
更新日期：2008-07-01 00:00:00
abstract：OBJECTIVE:This study aims to analyze the addition of niobium silicate particles to dental adhesive resins and evaluate its physicomechanical and biological properties. METHODS:The SiNb particles were produced by the sol-gel route and presented a mean particle size of 2.1 μm and a specific surface area of 616,96m2/g. A...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2020.103449
更新日期：2020-10-01 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: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:To determine the phenotypic and molecular characteristics of Enterococcus faecalis recovered from primary endodontic infections in Brazilian patients. METHODS:Twenty isolates of E. faecalis recovered from 43 Brazilian patients with primary endodontic infections were identified by biochemical profiling (API2...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.07.004
更新日期：2013-09-01 00:00:00
