Abstract:
OBJECTIVES:A priority research area in minimal intervention dentistry is the characterization of the early stages of dental erosion. The aim of this in vitro study was to assess the effect of short, repetitive erosive challenges to human enamel over 2 min at pH 1.5 and 3.0 under conditions simulating gastric regurgitation. METHODS:Enamel surfaces were subjected to erosive challenges at pH 1.5 (Group 1, n=10) and pH 3.0 (Group 2, n=9) for periods of 30s (stage 1), 60s (stage 2) and 120 s (stage 3). Quantitative changes were assessed longitudinally by measuring the 3D average surface roughness (Sa) values using 3D confocal microscopy. Qualitative micrographic assessment of surface changes was also conducted by using environmental scanning electron microscopy. RESULTS:Linear mixed model analysis showed significant effects of the pH values (p<0.001) and the stages (p<0.001) on the observed Sa values. Post hoc tests showed significant increases in the Sa values between baseline and other stages in both groups (p<0.01). The mean Sa values also increased significantly from stage 1 to stage 2 in Group 1 (p<0.05). Micrographic analysis displayed severely etched enamel rods in Group 1, but only subtle changes in Group 2. CONCLUSIONS:The complexity of the enamel surface is influenced by both acid concentration (pH value) and duration of acid exposure during early stages of erosion. Erosion occurring under conditions simulating GORD can be detected in its initial stages, opening up the possibilities of early diagnosis and management of this condition. CLINICAL SIGNIFICANCE:Erosive tooth wear occurs progressively and insidiously, often creating complex treatment challenges. This emphasizes the need for early diagnosis and management in accordance with minimal intervention philosophy. Our findings provide a foundation for further research that could lead to the development of highly-sensitive clinical diagnostic tools and preventive strategies.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Mann C,Ranjitkar S,Lekkas D,Hall C,Kaidonis JA,Townsend GC,Brook AHdoi
10.1016/j.jdent.2014.06.011subject
Has Abstractpub_date
2014-11-01 00:00:00pages
1411-21issue
11eissn
0300-5712issn
1879-176Xpii
S0300-5712(14)00193-6journal_volume
42pub_type
杂志文章abstract:AIM:The aim of this study is to report the subsequent treatment provided, over the 11 years' data available, when a re-intervention was considered clinically necessary on a glass ionomer (GI) restoration. METHODS:A detailed sample of treatment records of patients has been established at the Dental Practice Division of...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2008.07.008
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:This in vitro study examined the resistance to displacement offered by guide planes and the displacement mechanics of a bilateral bounded saddle cast cobalt chrome alloy removable partial denture framework under conditions simulating an average initial fit. METHODS:A specially designed model mouth jig fitte...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/s0300-5712(01)00016-1
更新日期:2001-05-01 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::This paper addresses three main themes: (1) oral health and frailty; (2) interprofessional healthcare teams; and (3) dental professionals on healthcare teams. Oral diseases exacerbate frailty, are rampant in most long-term care (LTC) facilities, and typically are not managed effectively by the medical and nursing staf...
journal_title:Journal of dentistry
pub_type: 杂志文章,评审
doi:10.1016/j.jdent.2011.10.017
更新日期:2011-12-01 00:00:00
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 Org...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/0300-5712(92)90057-j
更新日期:1992-10-01 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: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: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::The effects of gamma radiation at therapeutic dosage levels on the physical properties of three anterior (two light-cured and one autocure) composites and a light-cured posterior composite were studied. Gamma radiation had no effect on the autocured composite but had varied effects on the light-cured systems. The diam...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/0300-5712(89)90071-7
更新日期:1989-08-01 00:00:00
abstract::An even fitting surface is essential to obtain and maintain a healthy oral mucosa in denture wearers. The present study was designed to clarify the relationship between the surface roughness of oral mucosa and its reproduction in the corresponding fitting surface of acrylic dentures. A silicone elastomer/epoxy replica...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/0300-5712(94)90201-1
更新日期:1994-06-01 00:00:00
abstract:OBJECTIVES:Sleep bruxism (SB), characterized by repetitive jaw-muscle activity during sleep, is often suggested as a cause of temporomandibular disorders (TMD), orofacial pain, and headache. This study aimed to challenge the relationship between jaw-muscle electromyographic (EMG) activity during sleep and jaw muscle sy...
journal_title:Journal of dentistry
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jdent.2019.01.013
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:The goal of this study was to evaluate influence of different shade guides and respective shade matching methods on shade matching results and to analyze user satisfaction with these products and methods. METHODS:Eighty-eight pre-doctoral dental students completed the study. The color of four target shade t...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2009.02.005
更新日期:2009-01-01 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:OBJECTIVES:This study evaluated the effect of a chromium interlayer deposited by electroplating on the adhesion between titanium and porcelain by means of strain energy release rate (G-value (J/m(2)) or interfacial toughness). METHODS:Seventy rectangular specimens of commercially pure titanium (CP Ti) plates grade II ...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2010.05.003
更新日期:2010-08-01 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:The aim of the present study was to review the current literature relating to the impact of dental implants on oral health-related quality of life (OHRQoL) in edentulous or partially dentate patients. DATA/SOURCES:Systematic literature searches were performed in the PubMed, EMBASE, and Cochrane Library data...
journal_title:Journal of dentistry
pub_type: 杂志文章,评审
doi:10.1016/j.jdent.2017.08.003
更新日期:2017-10-01 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::Some laboratory tests of impression material accuracy mimic the clinical situation (simulatory) while others attempt to quantify a material's individual properties. This review concentrates on simulatory testing and aims to give a classification of the numerous tests available. Measurements can be made of the impressi...
journal_title:Journal of dentistry
pub_type: 杂志文章,评审
doi:10.1016/0300-5712(92)90117-u
更新日期:1992-04-01 00:00:00
abstract:OBJECTIVE:Erosive tooth wear (ETW) is an irreversible loss of dental hard tissue. This pilot study examined dentists' ability to diagnose and manage ETW relative to sound and caries-affected teeth. METHODS:Dentists recruited through the Indiana Dental Association (N = 36) participated in an internet-based survey, cont...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2020.103424
更新日期:2020-09-01 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:The aim of this study was to determine the effect on tooth colour (after 1 and 2 weeks use) of a self-applied tooth-whitening gel containing 6% hydrogen peroxide using a novel applicator, compared to a standard fluoride toothpaste. METHODS:A 2-week, examiner-blind, stratified, parallel design clinical trial...
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.2003.10.008
更新日期:2004-01-01 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:To evaluate the changes in oral health-related quality of life (OHRQoL) reported by subjects treated with conventional prostheses. METHODS:A consecutive sample of 153 patients seeking prosthodontic rehabilitation was recruited. Socio-demographic and prosthetic-related factors (Eichner Index; number of occlu...
journal_title:Journal of dentistry
pub_type: 临床试验,杂志文章
doi:10.1016/j.jdent.2013.01.006
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVES:Dentine modifies pulpward diffusion of monomers leaching from restorative materials. Thus, remaining dentine thickness must be taken into account during in vitro cytotoxicity tests. This in vitro study was designed to determine the influence of dentine permeability on the outcome of a cytotoxicity test. MET...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/s0300-5712(98)00019-0
更新日期:1998-07-01 00:00:00
abstract:OBJECTIVE:To evaluate the content of inorganic particles and the flexural strength of new condensable composites for posterior teeth in comparison to hybrid conventional composites. METHOD:The determination of the content of inorganic particles was performed by mass weighing of a polymerized composite before and after...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/s0300-5712(03)00049-6
更新日期:2003-07-01 00:00:00
abstract:OBJECTIVES:To measure the shear bond strengths of various luting cements to a sandblasted zirconia ceramic and to determine the surface energy parameters of the luting cements. METHODS:Two conventional glass ionomer cements, two resin-modified glass ionomer cements, two compomer cements, and two adhesive resin cements...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2011.08.012
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVE:To analyse smear layers on human dentine using ac-impedance spectroscopy. METHODS:Dentine samples were prepared from extracted, sound, third molars. Impedance measurements were carried out on dentine samples before and after etching. After measuring, samples were examined under scanning electron microscope (...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2004.05.003
更新日期:2004-09-01 00:00:00
abstract:OBJECTIVES:To determine the caries-removal effectiveness (CRE) and minimal-invasiveness potential (MIP) of contemporary caries-removal techniques. METHODS:Carious molars were scanned using micro-CT, after which dentine caries was removed by 9 contemporary caries-removal techniques. The micro-CT was repeated and CRE wa...
journal_title:Journal of dentistry
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jdent.2010.11.006
更新日期:2011-02-01 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::In a previous study concerning oral function with shortened dental arches, it was found that approximately 10 per cent of the patients investigated complained of impaired masticatory ability despite a substantial reduction in arch length and, as a consequence, food platform area. This finding differs from those of stu...
journal_title:Journal of dentistry
pub_type: 杂志文章,评审
doi:10.1016/0300-5712(90)90107-p
更新日期:1990-08-01 00:00:00