Abstract:
OBJECTIVES:To assess the accuracy of a novel, non-invasive method for determining the axis of rotation of articulated dental study casts. METHOD:A 3D structured light scanner was constructed using a projector and two CMOS cameras. Dental stone casts were arbitrarily mounted on an average value articulator. With the teeth together, sets of 10 scans were taken from three different viewpoints. Each scan captured approximately six upper teeth and six lower teeth. The teeth were then propped open, creating 10mm of incisal separation, and the three sets of 10 scans were repeated. From each pair of scans an axis of rotation was calculated using custom software. A total of 900 axes were created this way. The locations of these axes were plotted in sagittal planes located 57.5mm left and right of the midline to represent the position of the temporo-mandibular joints (TMJs). The accuracy of axis location was then assessed. RESULTS:The average radius of error of the individual axes, compared to the real axis, was 2.65 ± 1.01 mm. 61.3% of the axes lay within 3mm of the true axis, and 99.2% of the axes lay within 5mm of the true axis. CONCLUSIONS:The accuracy of this method is clinically acceptable. Further studies are required to confirm the accuracy of the virtual inter-occlusal records at the level of the dentition. Clinical studies are then indicated to determine whether the transverse horizontal axis on a patient can similarly be determined.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Keeling AJ,Brunton PA,Holt RJdoi
10.1016/j.jdent.2013.11.019subject
Has Abstractpub_date
2014-02-01 00:00:00pages
122-8issue
2eissn
0300-5712issn
1879-176Xpii
S0300-5712(13)00319-9journal_volume
42pub_type
杂志文章abstract:OBJECTIVES:Understanding the mechanical properties of dentine is of importance as adhesive restorative materials mainly achieve their bonding to the tooth structure through dentine. The current study measures the hardness and modulus of elasticity of primary molar dentine using an Ultra-Micro-Indentation System (UMIS),...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/s0300-5712(03)00045-9
更新日期:2003-05-01 00:00:00
abstract:OBJECTIVES:to explain the practice of wish-fulfilling medicine and how it relates to dentistry. SOURCES:Relevant papers, and reports from authoritative institutions were identified in Pubmed and Google Scholar. RESULTS:Wish-fulfilling medicine refers to services provided by professionals using medical methods in a me...
journal_title:Journal of dentistry
pub_type: 杂志文章,评审
doi:10.1016/j.jdent.2020.103302
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVES:To compare the effect of bioavailable gluconate-chelated stannous fluoride (SnF2) toothpaste with control toothpastes for treatment of dentine hypersensitivity (DH) and enamel erosion. DATA AND SOURCES:A Procter & Gamble Oral Care archive of clinical studies was reviewed from 2000 to 2020. Eligible studies ...
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: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
pub_type: 杂志文章
doi:10.1016/j.jdent.2015.11.002
更新日期:2016-02-01 00:00:00
abstract:OBJECTIVES:The purpose of the current study was to examine whether alumina abrasion regime influenced the necessary surface roughness conducive to mechanical interlocking prior to composite resin bonding. The impact of alumina abrasion and cement lute on the bi-axial flexure strength and associated Weibull Moduli (m) o...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2003.08.004
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine the microtensile bond strengths of total etching adhesive systems to pulpal chamber wall dentine after treated with various irrigants. METHODS:Thirty extracted human third molars were cut horizontally to expose the pulp horn. The roof of the pulp chamber and pulp ti...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2005.01.008
更新日期:2005-09-01 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:OBJECTIVE:To compare the effect of QMix (Dentsply Sirona), 7% maleic acid (MA), and 17% ethylenediaminetetraacetic acid (EDTA) on the microhardness, flexural strength and microstructure of mineral trioxide aggregate (MTA; ProRoot MTA, Dentsply Sirona). METHODS:Forty MTA specimens were divided into four groups: [I] QMi...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2017.08.018
更新日期:2017-11-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to investigate the corrosion resistance of the prototype iron-platinum (FePt) magnets and non-encapsulated neodymium-iron-boron (NdFeB) magnets in three different pH environments. METHODS:The corrosion resistance of the magnets was studied using a corrosion indicator, the bre...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2004.02.007
更新日期:2004-08-01 00:00:00
abstract:OBJECTIVES:this study aimed to synthesize AgNPs from green tea (GT) extract, forming GT-AgNPs, and to coat their surfaces with silica, resulting in light-colored Ag@SiO2 nanoparticles. MATERIALS AND METHODS:particles were characterized and tested for minimal inhibitory concentration (MIC), biofilm formation against St...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2020.103327
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVES:Toothbrushing and interdental cleaning are critical to maintaining good oral health. Literature is beginning to suggest that these behaviours may be conducted automatically, although the instigation ('deciding to do') and execution ('doing') of these behaviours has never been examined separately. The objecti...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2020.103470
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVES:To investigate the fatigue resistance and failure behaviour of cusp-replacing restorations in premolars using different types of adhesive restorative materials. METHODS:A class 2 cavity was prepared and the buccal cusp was removed in an extracted sound human upper premolar. By using a copy-milling machine t...
journal_title:Journal of dentistry
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jdent.2005.02.010
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVE:This study aimed to assess the survival and success of glass fiber posts compared to cast metal posts in teeth without ferrule. MATERIAL AND METHODS:An equivalency, prospective, double-blind (patient and outcome evaluator) randomized controlled trial (RCT) with parallel groups was designed to compare the cli...
journal_title:Journal of dentistry
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jdent.2020.103334
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:The study evaluated the clinical performance and marginal adaptation of direct and semi-direct class II composite restorations in a split-mouth design over 3.5 years. DESIGN:44 upper posterior teeth in 11 adults with primary carious lesions were treated with 22 direct and 22 semi-direct restorations. Convent...
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.2004.11.009
更新日期:2005-07-01 00:00:00
abstract::The effect of various surface treatments on the shear bond strength of composite resin to a glass-ionomer cement has been studied. Acid etching with phosphoric acid and polyacrylic acid, roughening by way of grinding or air drying, the use of a dentine bonding system and a silane coupling agent were the variables. Aci...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/0300-5712(89)90004-3
更新日期:1989-02-01 00:00:00
abstract:INTRODUCTION:Tooth surface loss (TSL) is an increasingly recognised problem. We are therefore seeing an increase in the number and complexity of in vitro studies investigating factors that modify effects at the tooth surface. AIM:The aim of this paper is to provide a narrative review that illustrates the more commonly...
journal_title:Journal of dentistry
pub_type: 杂志文章,评审
doi:10.1016/j.jdent.2010.01.002
更新日期:2010-03-01 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:OBJECTIVE:The aim of this study was to identify factors influencing the selection of restorative materials. METHODS:In 1992, a random sample of Finnish dentists working in the public and private health care sectors were asked to provide information on restorative treatments during a given period. The study material co...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/0300-5712(95)00070-4
更新日期:1996-07-01 00:00:00
abstract:OBJECTIVES:To measure aspects of fizzy drink consumption in a social environment to inform the development of a laboratory testing regime. METHODS:This was an observational study in which participants were invited to attend one of four pizza and soft drink parties. All such foods and drinks were served in an air condi...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2015.08.008
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVES:To investigate differentially expressed salivary peptides in the development of early childhood caries (ECC) in 3-4 year-old children. MATERIALS AND METHODS:Eighty-two caries-free children at baseline were followed-up for 1year, during which period 15 of them had developed ECC (Group C), whilst another 15 c...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2017.04.006
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the effect of sealant placement on the detection of caries by a fluorescent camera (FC), the Spectra caries detector. MATERIALS AND METHODS:In a laboratory study, FC images and readings were obtained from 31 extracted teeth, before and following application of clear seal...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2013.05.005
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVES:To analyse the effect of first and second premolar extractions on eruption space for upper and lower third molars and on third molar position and angulation during orthodontic treatment. METHODS:The sample consisted of 296 patients of which 218 patients were orthodontically treated without extraction and 78...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2017.03.007
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVES:The bonding of resin to dentine is dependent largely on surface modifications. The purpose of the present study was to test the hypothesis that a role of the metal chlorides used as primers is to initiate polymerization of resin at the resin-dentine interface, thereby affecting bond strength. METHODS:Nine p...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/s0300-5712(97)00030-4
更新日期:1998-09-01 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:Tooth shade is crucial to patient satisfaction in aesthetic dentistry. Two-dimensional (2D) clinical photographs have been widely used to record patients' tooth shade for creation of beautiful smile. However, in the digital workflow, 3D virtual teeth models in open file format contain only mesh information w...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/j.jdent.2018.09.009
更新日期:2018-12-01 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::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: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: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 aetiology of orofacial pain (OFP) is not well understood. We aimed to determine the relationship between OFP and local mechanical factors in an unselected general population sample. METHODS:A cross-sectional population-based survey was conducted in the United Kingdom, involving 2504 participants (adjust...
journal_title:Journal of dentistry
pub_type: 杂志文章
doi:10.1016/s0300-5712(03)00108-8
更新日期:2003-11-01 00:00:00