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 following groups: dentists, dental auxiliaries, and fixed prosthodontic technicians) and four dental patients served as subjects. Responses to tooth color differences (DeltaE) were measured on each of the three principal axes of CIELAB color space (L*, a*, and b*). As a control, responses to DeltaE=0 (the false alarm rate) were also measured in the same experimental session. RESULTS:No group differences among subjects were found. All gave 50% match or acceptance points that averaged about 1.0 DeltaE units in the L* and a* directions, and 2.6 units in the b* direction. False alarm rates across all subjects averaged 27% (4-55%) and 28% (0.4-61%), respectively, for perceptibility and acceptability. A reanalysis of the data based on SDT, which takes subjects' false alarm rates into account, gave somewhat larger color difference thresholds. CONCLUSIONS:Color difference thresholds for our simulated teeth are generally in line with and extend results obtained with studies using "real" dental materials. No differences between thresholds for acceptability versus perceptibility were found. Furthermore, subjects often reported color differences when none existed, and this behavior needs to be factored into any determination of quality control standards for the fabrication of dental prostheses.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Lindsey DT,Wee AGdoi
10.1016/j.jdent.2007.03.006subject
Has Abstractpub_date
2007-07-01 00:00:00pages
593-9issue
7eissn
0300-5712issn
1879-176Xpii
S0300-5712(07)00072-3journal_volume
35pub_type
杂志文章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:The aim of the current study was to evaluate the effect of 2% CHX and 2% CHX-methacrylate compared to the resin-dentin bonds created by a two-step etch-and-rinse adhesive system after 24h, 6min and 12min. METHODS:Microtensile bond strengths and interfacial nanoleakage within resin-dentin interfaces created ...
journal_title：Journal of dentistry
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doi：10.1016/j.jdent.2015.11.002
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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...
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doi：10.1016/j.jdent.2010.01.007
更新日期：2010-05-01 00:00:00
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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：UNLABELLED:Dental products containing calcium phosphate and fluoride are claimed to enhance enamel remineralization over fluoride products. OBJECTIVES:To compare remineralization of enamel subsurface lesions by dental products with added calcium phosphate in a double-blind, randomized, cross-over in situ study. METHO...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2011.05.002
更新日期：2011-07-01 00:00:00
abstract：OBJECTIVES:To assess whether the bonding potential to dentin of self-adhesive resin cements was affected by their pre-cure temperature. METHODS:Composite overlays (Paradigm MZ100, 3M ESPE) were luted on 100 extracted molars with G-Cem (GC Corp.), BisCem (Bisco), Multilink Sprint (Ivoclar Vivadent), SAC-A (Kuraray Co.)...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2009.02.006
更新日期：2009-06-01 00:00:00
abstract：OBJECTIVES:To investigate the influence of pre-heating of high-viscosity bulk-fill composite materials on their degree of conversion and shrinkage force formation. METHODS:Four bulk-fill composite materials (Tetric EvoCeram Bulk Fill-TECBF, x-tra fil-XF, QuixFil-QF, SonicFill-SF) and one conventional nano-hybrid resin...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2015.07.014
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVES:The purpose of this study was to evaluate the capacity of six contemporary self-etch primers/adhesives to demineralize ground enamel by means of ultrastructural analysis of the etching surface under SEM and by spectroscopic measurement of the percentage of calcium and phosphate ions dissolved. METHODS:Seven...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2006.11.003
更新日期：2007-05-01 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:Following tooth pulp exposure, pulpal repair is accomplished by dentine bridge secretion by odontoblast-like cells. However, little information is available about the hierarchy of variables, which influence odontoblast-like cell numbers. The purpose of this study was to examine correlations between pulp capp...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(02)00024-6
更新日期：2002-09-01 00:00:00
abstract：OBJECTIVES:To detect any differences in the propensity of unstimulated and stimulated, individual whole saliva to cause in vitro staining by chlorhexidine and tea. METHODS:Unstimulated and stimulated human saliva was collected on a daily basis and used to coat optically clear acrylic specimens. Specimens were subjecte...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(02)00053-2
更新日期：2002-09-01 00:00:00
abstract：OBJECTIVES:The purpose of this study was to determine the longevity and quality of Class I and Class II resin composite (Herculite XR) restorations placed in private practice. METHODS:One thousand two hundred and nine Class I and Class II composite restorations with margins in enamel were evaluated clinically after pe...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(96)00027-9
更新日期：1997-05-01 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 evaluate the effect of application method on immediate and 6-month resin-dentin microtensile bond strength (microTBS) and nanoleakage (NL) of three one-step self-etch adhesives systems (Clearfil S(3) Bond (S3), Xeno III (XE) and Adper Prompt L-Pop (AD)). METHODS:The oclusal enamel of 30 human molar was r...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2008.09.010
更新日期：2009-01-01 00:00:00
abstract：OBJECTIVE:Cytokine networks regulate innate and adaptive immune responses, which in turn are recognised to direct the progression or arrest of periodontal disease. This study aimed to compare the profile of seven cytokines, implicated in regulating T-cell networks, in gingival crevicular fluid (GCF) samples with differ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2019.04.009
更新日期：2019-06-01 00:00:00
abstract：OBJECTIVES:To evaluate the correlation between the shark fin test and the dimensional accuracy of impressions, surface detail reproduction of impressions and rheological properties of impression materials within the manufacturer's recommended working time. METHODS:Four chemically different types of impression material...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2006.11.009
更新日期：2007-05-01 00:00:00
abstract：OBJECTIVE:To compare near infrared transillumination device, DIAGNOcam (DC) and bitewing radiography (BW) for the detection of proximal caries. MATERIALS AND METHODS:This retrospective analysis of DC and BW images of 18 students in dental medicine who had consented to the anonymous use of their dental record. The data...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.12.008
更新日期：2018-03-01 00:00:00
abstract：UNLABELLED:Three types of fiber-reinforced composite (FRC) molar crowns were tested on their fracture resistance and marginal adaptation under simulated oral stress conditions. Two glass fiber systems, one processed with a vacuum/pressure system, the other by manual fiber adaptation, and a polyethylene fiber system wer...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(01)00007-0
更新日期：2001-03-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2020.103566
更新日期：2020-12-28 00:00:00
abstract：OBJECTIVES:To evaluate the effect of using a bulk-fill flowable base material on fracture strength and fracture patterns of root-filled maxillary premolars with MOD preparations restored with laminate restorations. METHODS:Fifty extracted maxillary premolars were selected for the study. Standardized MOD cavities with ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.05.016
更新日期：2017-08-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(02)00067-2
更新日期：2003-01-01 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:Three activated organofunctional silane coupling agents alone and blended with a non-functional cross-linker silane were evaluated as adhesion promoters in an experiment where a bis-GMA (bis-phenol-A-diglycidyldimethacrylate) resin was bonded to silicatized titanium. The adhesive performances of the silanes ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2006.01.008
更新日期：2006-11-01 00:00:00
abstract：:In the present study Class II resin composite restorations were placed under in vivo and in vitro conditions. For the in vivo part. Class II preparations were cut in teeth destined for extraction for orthodontic reasons. The preparations were completed with the gingival margin in enamel and restored using six differen...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(93)90026-m
更新日期：1993-06-01 00:00:00
abstract：OBJECTIVE:The present study tested the central hypothesis that selective demineralisation of dentine extrafibrillar minerals by lowering the phosphoric acid concentration improves the quality of the resin-dentine interface. METHODS:Dentine surfaces were etched with different concentrations of phosphoric acid (1, 5, 10...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2016.07.008
更新日期：2016-09-01 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：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：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: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：OBJECTIVE:This study evaluated whether Quantitative Light-induced Fluorescence-Digital (QLF-D) can detect the levels of cariogenicity of dental microcosm biofilms by assessing the red fluorescence intensity. METHODS:Dental microcosm biofilms were initiated from human saliva on bovine enamel discs. Biofilms with variou...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.08.021
更新日期：2013-12-01 00:00:00
