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. Specimens were inserted into custom-fabricated trays, and underwent a routine home-bleaching treatment. CIE Lab* color coordinates of the specimens were obtained using a spectrophotometer. Ultra-structural effects were investigated by SEM and ATR-FTIR. The color data were analyzed with ANOVA and Tukey's post hoc analysis. RESULTS:Significant color changes were found among all the materials after bleaching. However, the color differences decreased and fell into the clinically acceptable range (except for the compomer) after withdrawal of the bleaching treatment. Surface dissolution was detected in the polyacid-modified composite and glass-ionomer cement. ATR-FTIR analyses found chemical composition alterations in the polyacid-modified composite. SIGNIFICANCE:A 15% carbamide peroxide home-bleaching gel did not cause color changes in the composites and glass-ionomer cement. However, significant color and chemical composition alterations were found in the polyacid-modified composite.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Li Q,Yu H,Wang Ydoi
10.1016/j.jdent.2009.01.003subject
Has Abstractpub_date
2009-05-01 00:00:00pages
348-56issue
5eissn
0300-5712issn
1879-176Xpii
S0300-5712(09)00006-2journal_volume
37pub_type
杂志文章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:Three strength tests (compressive, three point flexure and biaxial) were performed on three glass ionomer (GI) restoratives to assess the most appropriate methodology in terms of validity and reliability. The influence of mixing induced variability on the data sets generated were eliminated by using encapsul...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2011.12.002
更新日期：2012-03-01 00:00:00
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 servohydra...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2006.10.003
更新日期：2007-04-01 00:00:00
abstract：OBJECTIVES:The purpose of this study was to evaluate the effects of a home bleaching gel containing 15% carbamide peroxide on the surface microhardness of four tooth-colored restorative materials in situ. METHODS:Four types of tooth-colored restorative materials, including a nanocomposite resin (Filtek Z350), a packab...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2008.01.008
更新日期：2008-04-01 00:00:00
abstract：OBJECTIVES:To evaluate bone reconstruction and soft tissue reactions at immediate implants placed into intact sockets and those with buccal bone dehiscence defects. METHODS:Fifty-nine internal connection implants from four different manufacturers were immediately placed in intact sockets(non-dehiscence group, n=40), a...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.07.010
更新日期：2017-10-01 00:00:00
abstract：OBJECTIVES:To investigate the effectiveness of an indicator gel in revealing exposed dentine. METHODS:Teeth prepared into dentine and then stained with the indicator gel were sectioned for histological examination. RESULTS:The indicator gel was found to stain dentine and thin layers of enamel. CONCLUSION:The gel is ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(94)00010-d
更新日期：1995-12-01 00:00:00
abstract：OBJECTIVES:To evaluate the effect of hydrothermal aging (H), mechanical cycling (M), and the combination of hydrothermal plus mechanical cycling (H+M) on biaxial flexural strength (BFS) and microstructure of two monolithic zirconias, indicated for anterior (AMZ) or posterior restorations (PMZ) and a conventional zircon...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.05.021
更新日期：2017-08-01 00:00:00
abstract：OBJECTIVES:Health condition of the gingival tissues contacting the surfaces of fixed prostheses is a result of multiple etiologic factors. The aim of the investigation discussed here was to evaluate the attachment and proliferation rate of cultured human epithelial cells on three commonly used restorative materials und...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.11.008
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVES:A meta-analysis was conducted to assess the relationship between parental age and the occurrence of non-syndromic oral clefts. The questions addressed if younger or older mothers and fathers have an increased risk of having a child with non-syndromic oral clefts. DATA:Data from cohort studies, case-control,...
journal_title：Journal of dentistry
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jdent.2011.10.002
更新日期：2012-01-01 00:00:00
abstract：OBJECTIVE:The shear bond strengths of an autopolymerizing denture base resin to cast Ti-6Al-7Nb and Co-Cr alloys using three metal conditioners were investigated. METHODS:Ti-6Al-7Nb alloy and Co-Cr alloy discs were cast. The disc surfaces were air-abraded with 50 microm alumina particles and treated with three metal c...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2005.05.002
更新日期：2006-02-01 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：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：OBJECTIVE:The purpose of this study was to compare microleakage of glass ionomer materials (GIC) using two different modes of cavity preparation: a high-speed hand piece and an erbium/yttrium-aluminum-garnet (Er/YAG) laser. METHODS:Eighty caries free permanent molar teeth had class V preparations cut on both the bucca...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(02)00011-8
更新日期：2002-05-01 00:00:00
abstract：OBJECTIVE:Following a successful 2005-2012 phase with three regional practice-based research networks (PBRNs), a single, unified national network called "The National Dental PBRN" was created in 2012 in the United States to improve oral health by conducting practice-based research and serving dental professionals throu...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.04.002
更新日期：2013-11-01 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:The objective of the study was to determine the perceptibility and acceptability thresholds for dental ceramics using CIEDE2000 (ΔE(00)) and CIELAB (ΔE(ab)(*)) color difference formulas and a novel TSK Fuzzy Approximation. METHODS:A 13-observer panel performed independent observations of perceptibility and ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2010.07.008
更新日期：2010-01-01 00:00:00
abstract：OBJECTIVES:A low pH environment is created by cariogenic bacteria. This study was aimed to measure pH of carious lesions intraorally using a micro-pH sensor, and assess predominant acid-producing cariogens by qPCR to differentiate caries activities. METHODS:103 dentine lesions classified as active or arrested caries b...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2011.12.013
更新日期：2012-03-01 00:00:00
abstract：OBJECTIVES:This study investigated the effects of the surface conditioning of nano-zirconia fillers with 10-methacryloyloxydecyl dihydrogen phosphate (MDP) and dipentaerythritol penta-acrylate phosphate (PENTA) on the degree of conversion and mechanical properties of Bis-GMA- and UDMA-based resin composites containing ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2020.103306
更新日期：2020-03-01 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:The aim of this study was to investigate the kinetics of protein interactions with a novel hydroxyapatite-polylactide (HA-PLA) composite membrane material. METHODS:Trilayer PLA and HA-PLA composite membranes reinforced with PLA fibres were used to absorb and release protein which was measured by a BioRad as...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2009.06.014
更新日期：2009-11-01 00:00:00
abstract：OBJECTIVES:To examine the effect of incorporating arginine in a 5% sodium fluoride (NaF) varnish on its remineralization potential and HGF-1 cytotoxicity. METHODS:Experimental varnishes were prepared using two arginine variants: l-arginine (Arg) and l-arginine monohydrochloride (Arg.HCl) at 2%, 4%, & 8% w/v. with cont...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2020.103411
更新日期：2020-08-01 00:00:00
abstract：OBJECTIVES:The demand for restoration of root dentine defects such as cervical erosion and root caries has significantly increased recently, but there is limited information on the performance of the adhesive resins to radicular dentine. The purpose of this study was to measure the regional tensile bond strength (TBS) ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(95)00102-6
更新日期：1996-11-01 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
abstract：OBJECTIVES:This clinical study evaluated the long-term outcome and survival rate of all-ceramic cantilever resin-bonded fixed dental prostheses (RBFDPs) made of zirconia-ceramic with a single-retainer design to replace missing incisors. In addition, whether the reason for missing incisors has an influence on the longev...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.07.003
更新日期：2017-10-01 00:00:00
abstract：OBJECTIVE:This study compared the antibacterial activities of two dentin bonding systems (ABF, Kuraray and Reactmer Bond, Shofu) by a conventional agar well technique and a newly designed in vitro test using tooth model. METHODS:In the agar well technique, the test materials were filled in the wells of Muller Hinton a...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(03)00006-x
更新日期：2003-02-01 00:00:00
abstract：OBJECTIVE:To evaluate the efficacy of EDDY, a new sonic-powered irrigation system, in reducing intracanal bacteria load. METHODS:Thirty-eight instrumented, autoclaved single-rooted human premolars were inoculated with Enterococcus faecalis (ATCC-29212) for 21 days. Two teeth were used as negative control without bacte...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2018.06.003
更新日期：2018-08-01 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: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：OBJECTIVES:This systematic review aimed to verify if there is difference in the longevity of minimally invasive techniques compared to the complete replacement for the treatment of defective direct restorations in permanent teeth. DATA:The data included randomized controlled clinical trials comparing the clinical perf...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2018.09.001
更新日期：2018-11-01 00:00:00
abstract：OBJECTIVES:The purpose of this study was to characterize changes in surface topography associated with different surface treatments and their effect on tensile bond strength (TBS) of repaired water-aged anterior restorative micro-fine hybrid resin composite. METHODS:The TBS of repaired resin-based composite slabs eith...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2008.07.014
更新日期：2008-12-01 00:00:00
