Abstract:
:The purpose of the study was to explore the fundamental wear behaviour of a dental composite with different filler loadings under two-body wear conditions. The parent resin and filler components were mixed according to different weight ratios to produce experimental composites with filler loadings ranging from 20 to 87.5% by weight. A two-body wear test was conducted on the experimental composites using a wear-testing machine. The machine was designed to simulate the impact of the direct cyclic masticatory loading that occurs in the occlusal contact area in vivo. The results showed that there was little increase in the rate of wear with filler loadings below 60 wt%, but a sharp increase between 80 and 87.5 wt% in filler loading. Wide striations and bulk loss of material were apparent on the wear surfaces at higher filler loadings. Coefficients of friction increased with filler loading and followed the increase in rate of wear loss closely. It was concluded that, under two-body wear conditions, addition of high levels of filler particles into the resin matrix could reduce the wear resistance of dental composites. This finding may help when designing future dental composites for use in particular clinical settings.
journal_name
J Oral Rehabiljournal_title
Journal of oral rehabilitationauthors
Hu X,Marquis PM,Shortall ACdoi
10.1046/j.1365-2842.2003.01068.xkeywords:
subject
Has Abstractpub_date
2003-07-01 00:00:00pages
729-37issue
7eissn
0305-182Xissn
1365-2842pii
1068journal_volume
30pub_type
杂志文章abstract::Thermal diffusivity values for glass ionomer and polycarboxylate cements have been determined for varying proportions of cement powder and liquid. Diffusivity is observed to be an increasing function of powder/liquid ratio. This is discussed in relation to the application of these cements as cavity bases. ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1984.tb00578.x
更新日期:1984-05-01 00:00:00
abstract::The aim of the study was to compare treatment with diclofenac sodium (Voltaren 3 x 50 mg) to occlusal splint therapy in a randomized, single-blind controlled trial of patients with a diagnosis of temporomandibular joint (TMJ) osteoarthritis (OA) in accordance with Research Diagnostic Criteria for temporomandibular dis...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2842.2008.01863.x
更新日期:2008-10-01 00:00:00
abstract::The tensile bond strengths of composites to enamel etched with various concentrations of phosphoric acid have been shown to correlate closely with the phase diagram for the system Ca(OH)2/H3PO4/H2O. Bond strengths were independent of the adhesive used and were a maximum when using approximately 20% phosphoric acid as ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1978.tb00393.x
更新日期:1978-01-01 00:00:00
abstract::The aim of this study was to evaluate the correlation between patients' and dentist's assessment of dentures and to correlate these variables with objective measures of masticatory function. A sample of 28 edentulous individuals was selected, all wearing both complete dentures for at least 6 months and with no signs o...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2010.02174.x
更新日期:2011-06-01 00:00:00
abstract::Problems related to leakage have been observed with direct-filled composite restorations. The development of indirect system of fabrication followed by cementation should theoretically reduce this phenomenon. The present study compares the leakage around directly placed composites with composite inlays prepared by a s...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1992.tb01101.x
更新日期:1992-05-01 00:00:00
abstract::The aim of the present study was to evaluate two different methods for the assessment of the positional stability of occlusion. The time taken from first contact on closure to full intercuspation was measured by the T-scan(R), and the length of the slide between centric relation (CR) and maximum intercuspation was cli...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1999.00483.x
更新日期:1999-10-01 00:00:00
abstract::The aim of this study was to make clear the age-hardening mechanism in a dental high carat gold alloy. For this purpose, age-hardening behaviour of a commercial dental high carat gold alloy, 65.5 wt% Au-14.0 wt% Ag-10.0 wt% Cu-8.9 wt% Pt, was investigated by means of hardness testing, X-ray diffraction study and scann...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1999.00371.x
更新日期:1999-03-01 00:00:00
abstract::Longitudinally documented benefits for edentulous patients of treatment outcomes of the osseointegration technique demonstrate compelling therapeutic results. Heterogeneous population groups, treated in different centres by various dental specialists, have provided impressive evidence of a minimal burden of illness as...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2842.1995.tb01064.x
更新日期:1995-08-01 00:00:00
abstract::Masticatory muscle contraction causes both jaw movement and tissue deformation during function. Natural chewing data from 25 adult miniature pigs were studied by means of time series analysis. The data set included simultaneous recordings of electromyography (EMG) from bilateral masseter (MA), zygomaticomandibularis (...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2004.01156.x
更新日期:2004-01-01 00:00:00
abstract::Experimental loss of occlusal support caused by the extraction or grinding of molar teeth has been reported to foment the impairment of learning and memory in laboratory animals. The purpose of this study was to examine the effect of occlusal reconstruction after long-term loss of molars on spatial memory by using 8-a...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.12198
更新日期:2014-10-01 00:00:00
abstract::A large-scale, multi-site study has been performed to examine the reliability and validity of the research diagnostic criteria for temporomandibular disorders (RDC/TMD) and to suggest revisions of the current RDC/TMD. During an International Association for Dental Research (IADR) Workshop in July 2008, preliminary res...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2842.2010.02091.x
更新日期:2010-10-01 00:00:00
abstract::The aim of this study was to examine whether sectioning of the lateral branches of the hypoglossal nerves (l-XII) in young male rats affects regulation of body weight, food intake and water intake in their period of growth by using a linear fixed effects model or not. Three groups of the rats were prepared according t...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2009.01986.x
更新日期:2009-09-01 00:00:00
abstract::This study characterizes the mandibular protrusive and lateral excursions of children with primary dentition. With use of a Selspot system, the protrusive and lateral excursions of nine children with the primary dentition and nine adults with the permanent dentition were measured and compared. This system was able to ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1998.00236.x
更新日期:1998-04-01 00:00:00
abstract::Idiopathic trigeminal neuralgia (ITN) is a chronic neuropathic pain that affects the masticatory system. The objective of this study was to identify orofacial pain and temporomandibular characteristics, including temporomandibular disorder (TMD), in a sample of 105 ITN patients treated with compression of the trigemin...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2006.01680.x
更新日期:2007-02-01 00:00:00
abstract::Earlier work revealed that creep of a particular dental amalgam can be described by the model F(t) = F0 exp (t/t0)m. Here F(t) is the creep compliance at time t, whereas F0, t0 and m are constants of the model. In the previous study only three alloys were used. It was the aim of this study to investigate the factor al...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1983.tb00129.x
更新日期:1983-07-01 00:00:00
abstract::Using a cast measuring technique, the change in contour of the residual maxillary alveolar ridge of patients who have worn dentures for a number of years and are then fitted with new dentures, has been investigated. The study confirmed that even after 30 years of denture wearing, further bone resorption may occur bene...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1980.tb00441.x
更新日期:1980-05-01 00:00:00
abstract::Nineteen patients with definite and suspected temporomandibular joint (TMJ) osteoarthritis participated in this study. All patients were treated by dental care including bite plane therapy. By comparing the pre-treatment clinical symptoms and TMJ tomograms with those post-treatment, efficacy of the dental treatment ap...
journal_title:Journal of oral rehabilitation
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2842.1994.tb01153.x
更新日期:1994-07-01 00:00:00
abstract::This study consists of 147 subjects treated with fixed prostheses 4 years previously. Occlusal analyses were made, and the fillings, crowns, and pontics on the occlusal surfaces were recorded. Occlusal interferences were found in 42.6% of the fillings, in 34.9% of the crowns, in 27.0% of the pontics, and in 24.6% of t...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1986.tb01301.x
更新日期:1986-09-01 00:00:00
abstract:OBJECTIVES:Women with temporomandibular disorder (TMD) pain from three cultures were assessed for type of treatment received and core illness beliefs. METHODS:In a clinical setting, 122 women patients with chronic TMD pain (39 Saudis, 41 Swedes and 42 Italians) were evaluated for patient characteristics, type of pract...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,多中心研究
doi:10.1111/joor.12683
更新日期:2018-09-01 00:00:00
abstract::An I-bar clasp is one of the most popular direct retainers for distal-extension removable partial dentures. However, no adequate information is available on preferable shape as determined by biomechanics. This study aimed (1) to investigate, by finite element analysis (FEA), the dimensions and stress of I-bar clasps h...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2001.00673.x
更新日期:2001-05-01 00:00:00
abstract::Previous studies support the view that the oral medium is a dynamic system composed of several elements, among which are restorations in teeth. The author believes that the evolution in time of a restoration can be non-lineal and that it has an irregular and chaotic behaviour. To investigate the theory, the author stu...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1997.00457.x
更新日期:1997-01-01 00:00:00
abstract::A particulate BGC (bioactive glass ceramics), has been developed as a new bone graft biomaterial for alveolar ridge augmentation and has been evaluated by simulated animal models. Five beagle dogs were used in this investigation. Prior to augmentation the mandibular posterior teeth of the animals were extracted. Three...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1989.tb01337.x
更新日期:1989-05-01 00:00:00
abstract::To determine whether maximum bite force (MBF), an objective measure of oral function, is associated with development of frailty in community-dwelling older adults. This prospective cohort study included community-dwelling Japanese adults aged 75 years at baseline (n = 322). Baseline MBF was measured using an electroni...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.12578
更新日期:2018-01-01 00:00:00
abstract::This study evaluated the shear strength resistance of endodontically treated roots that were restored by two different techniques. Twenty-seven recently extracted single-rooted teeth with similar anatomic characteristics were sectioned to obtain the same length for all specimens. Group I (GI) consisted of 14 roots res...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1998.00327.x
更新日期:1998-11-01 00:00:00
abstract::This paper describes the application of a hydraulic intraoral jig to the establishment of the vertical dimension of occlusion for full denture construction. The device enables the patient to establish an occlusal height which is most comfortable without the intervention or guidance of the dentist. Six patients for who...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1988.tb00174.x
更新日期:1988-07-01 00:00:00
abstract::Regarding declining resources epidemiological data on needs for oral rehabilitation are required. Within the framework of an oral health survey a non-stratified two-stage random sample was taken to represent the over 14-year-old population of Saxony/Germany. The participation rate was 55%. Normative need was determine...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2001.00773.x
更新日期:2001-08-01 00:00:00
abstract::The periodontal regeneration of interproximal bone defects of the posterior teeth produced by guided tissue regeneration (GTR), with expanded Polytetrafluoroethylene barrier membranes and conventional therapy, was clinically evaluated in 20 intrabony periodontal defects in 10 patients. The material included the presen...
journal_title:Journal of oral rehabilitation
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2842.1996.d01-206.x
更新日期:1996-09-01 00:00:00
abstract::A sample of 16 rats was used as experimental material to evaluate the effect of surgical repositioning of the disc of the temporomandibular joint according to the technique described by McCarty and Farrar (1979) and its variation according to Leopard (1984). The animals were killed 6 weeks postoperatively. Macroscopic...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1990.tb00006.x
更新日期:1990-05-01 00:00:00
abstract::Although tooth loss with age has been extensively investigated, there appears to be no literature on the relationship of age to remaining mandibular third molars. The study showed that as age increases so does the frequency of absent vertically erupted mandibular third molars. However, no correlation was found between...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1997.00195.x
更新日期:1997-12-01 00:00:00
abstract::The purpose of this study was to assess the knowledge diabetic patients have of their risk for periodontal disease, their attitude towards oral health and their oral health-related quality of life (OHRQL). One hundred and one consecutive patients (age range 31-79 years) recruited from a diabetic outpatient clinic part...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2007.01760.x
更新日期:2008-03-01 00:00:00