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 scanning electron microscopy. Age-hardening was generated by the coherency strain resulting from the transformation of the alpha single phase to the Ag-rich alpha 1 phase and the AuCu I type ordered phase. The coherency strain seemed to be associated with the nucleation of the AuCu ordered structure initially, and then was brought about with the simultaneous formation of the Ag-rich alpha 1 phase and the AuCu I type ordered phase. Hardening was attributed mainly to the very fine coherent precipitates of a lamellar structure composed of the Ag-rich alpha 1 phase and the AuCu I type ordered phase at grain boundaries, and softening, which occurred following prolonged ageing, was due to the coarsening of the fine lamellar structure by releasing the strain at the interfaces of the adjacent lamellae.
journal_name
J Oral Rehabiljournal_title
Journal of oral rehabilitationauthors
Kim HI,Jang MI,Kim MSdoi
10.1046/j.1365-2842.1999.00371.xkeywords:
subject
Has Abstractpub_date
1999-03-01 00:00:00pages
215-22issue
3eissn
0305-182Xissn
1365-2842journal_volume
26pub_type
杂志文章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::The purpose of this study was to evaluate the surface micromorphology of resin modified glass-ionomer cements and flowable compomers. In the study two resin modified glass-ionomers and two flowable compomers were used to prepare standardized 20 cylinderic samples. Samples were divided into four groups. Surface treatme...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2005.01484.x
更新日期:2005-09-01 00:00:00
abstract::An electron microprobe was used to investigate the composition and microstructure of regions in the reaction zones around particles of approximately Ag-Cu eutectic composition in commercially available and experimental dispersion modified amalgams. Two distinct regions were identified. Techniques of phase composition ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1985.tb00619.x
更新日期:1985-01-01 00:00:00
abstract::Putty form graft materials may have additional favourable effects when compared with particulate ones in periodontal bone defects. The purpose of this study was to assess clinical and also radiographic changes following application of (i) putty form demineralized bone matrix (DBM), (ii) particulate form DBM and (iii) ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2842.2009.01958.x
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Tenofovir disoproxil fumarate (TDF), a primary antiretroviral agent used to treat AIDS, triggers systematic bone loss. However, the effect of TDF on osteopenia or osteoporosis in the jaw remains unclear. TDF-induced bone loss in the jaw, if any, likely involves mandible-derived mesenchymal stem cells (MMSCs)...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.12840
更新日期:2020-11-01 00:00:00
abstract::Restorative dental materials are considered biocompatible without exhibiting any bioactive behaviour. The aim of this study was the investigation of surface structure changes on conventional dental ceramics used in metal-ceramic restorations modified by a bioactive glass, after immersion in SBF for various time period...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2003.01072.x
更新日期:2003-09-01 00:00:00
abstract::The present study evaluated the incidence and causes of failure of conventional bridgework provided in the Prince Philip Dental Hospital, Hong Kong. Any bridge that utilized resin-bonded (Maryland) retainers was excluded from this study. All patients with bridges fitted between 1981 and 1987 were recalled for review, ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1990.tb01401.x
更新日期:1990-03-01 00:00:00
abstract::The purpose of this study was to evaluate the relationship between balancing-side occlusal contact patterns and the prevalence of the internal derangement of the temporomandibular joint (TMJ). Forty-one patients were used for the magnetic resonance image (MRI) analysis of TMJ and occlusal examination. Balancing-side o...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2003.01000.x
更新日期:2003-01-01 00:00:00
abstract::The aim of this study was to examine the effectiveness of single-step self-etching adhesives in preventing nanoleakage over a 90-day water-storage period, and analyse the ultramorphological characteristics of resin-dentin interfaces. Three single-step self-etching adhesives were evaluated: Adper Prompt L-Pop - LP (3M ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2006.01656.x
更新日期:2007-03-01 00:00:00
abstract::This study examined the differences in the masticatory function of patients with temporomandibular disorder (TMD) in Korea. The experimental groups were as follows: 23 patients with painful arthralgia classified as pain group according to the research diagnostic criteria for temporomandibular disorder (RDC/TMC) and 28...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2010.02179.x
更新日期:2011-07-01 00:00:00
abstract::Biofilms accumulate on hard and soft surface in the oral cavity. Accumulation of biofilms on orthodontic appliance bear scientific and clinical interest. The objection of this study was to examine the formation of dental biofilm by Streptococcus sobrinus on different types of orthodontics appliances, using a model con...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2004.01350.x
更新日期:2004-11-01 00:00:00
abstract::The purpose of this study was to investigate the relationship between temporomandibular joint (TMJ) dysfunction, bruxism and oral parafunctions in the permanent and mixed dentition of Turkish children. Examinations were performed on 59 children (26 girls and 33 boys) without TMJ dysfunction and 123 children (54 boys a...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2002.00781.x
更新日期:2002-01-01 00:00:00
abstract::Given increased tooth retention into later years of life, dentists face increasing challenges in maintaining teeth with extensive composite restorations. Accompanying the increase in placement of composite restorations in general practice, there has also been increased evidence that repair, rather than replacement, of...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2011.02260.x
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVES:Intra-articular analgesics are increasingly being used after temporomandibular joint (TMJ) arthrocentesis but without clear evidence on its efficacy. The aim of this study was to review the role of intra-articular analgesic injected after TMJ arthrocentesis in improving post-operative outcomes. METHODS:PubM...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,meta分析
doi:10.1111/joor.13105
更新日期:2021-01-01 00:00:00
abstract::Bilateral coronoid hyperplasia requires surgery (coronoidectomy) to improve mouth opening. An intra-oral approach is preferred with direct fibre-optic anaesthetic intubation. Myotomy of the masseter muscle is recommended in cases where fibrotic and calcifying effects have occurred. Pre-operative physiotherapy counsell...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1997.00561.x
更新日期:1997-10-01 00:00:00
abstract::The aims were to determine whether individuals with a past history of pain exhibit (i) altered jaw movement (e.g. reduced amplitude, increased jaw movement variability) in comparison with matched asymptomatic controls, and (ii) correlations between psychological measures (e.g. catastrophising) and altered jaw movement...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.12220
更新日期:2015-01-01 00:00:00
abstract::Combined electrophysiological and psychophysical experiments were performed on 15 human subjects to investigate the possible effects of perceived stress or mental occupation on jaw reflexes. Electromyographic recordings were made from the masseter and anterior temporalis muscles, of the series of excitatory and inhibi...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1999.00457.x
更新日期:1999-12-01 00:00:00
abstract::The objective of this clinical study was to compare the survival rates of early loaded implants placed using flapless and flapped surgical techniques and to determine the bone density in the implant recipient sites using computerized tomography (CT). The study population consisted of 12 patients who were referred impl...
journal_title:Journal of oral rehabilitation
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1111/j.1365-2842.2007.01772.x
更新日期:2007-11-01 00:00:00
abstract::Temperatures were recorded in thirty-two gingival crevices adjacent to proximal surfaces of abutment teeth fitted with minor connectors of an open space design, and in thirty gingival crevices adjacent to proximal surfaces fitted with minor connectors of a closed design. During the 2 week experimental period, the twen...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1980.tb00431.x
更新日期:1980-03-01 00:00:00
abstract::An extensive search for randomised controlled clinical trials was accomplished to compare dental prostheses and occlusal splints constructed with or without face-bow transfer, and question whether face-bow transfer may present better clinical results than simpler approaches. Studies were identified by searching electr...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,评审
doi:10.1111/joor.12081
更新日期:2013-09-01 00:00:00
abstract::The first purpose of this study was to translate the Oral Behaviours Checklist (OBC) into Dutch and to examine its psychometric properties. The second purpose was to examine the correlations between scores on the OBC and facial pain, while controlling for the possible confounding effects of psychosocial factors, such ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.12114
更新日期:2014-02-01 00:00:00
abstract::To investigate whether there are differences in patients' denture satisfaction when an implant placed in the midline of the edentulous mandible is loaded either immediately or three months later, after second-stage surgery. One hundred and fifty-eight edentulous patients received a single implant in the midline of the...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/joor.12473
更新日期:2017-03-01 00:00:00
abstract::The cytotoxicity of six dentin bonding agents (Syntac, Solobond, Bond 1, Scotchbond 1, Heliobond and F-2000) was tested against an established cell line, L929. Under aseptic conditions 3, 5 and 10 microL dentin bonding agents were placed in the centre of Petri dishes. Each dish was covered with a 5-mL suspension of fi...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2001.00769.x
更新日期:2001-10-01 00:00:00
abstract::The suitability of the soft tissue over the chin as a reference point in studies of mandibular performance during chewing was investigated. The movements of reference diodes (LEDs), one on the chin and the other attached to the lower front tooth, were registered simultaneously using the Selspot system and analysed in ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1982.tb01015.x
更新日期:1982-05-01 00:00:00
abstract::The effect on healthy dental pulp of thermal increases ranging from 8.9 to 14.7 degrees C was evaluated. These temperature increases correspond approximately to those caused by certain restorative procedures, such as tooth preparation with high-speed instruments and the fabrication of direct provisional crowns. Two cr...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1997.00566.x
更新日期:1997-11-01 00:00:00
abstract::The purpose of this study was to develop standardized reproducible testing methods for evaluating physical properties of periodontal dressing materials. Three commercial compositions (Coe-Pak, Coe-Pak Hard & Fast Set and WondrPak) were studied. Working and setting times were determined by observing the continuous chan...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1986.tb00681.x
更新日期:1986-11-01 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::The objective of this study is to compare the effects of canine guidance (CG) and bilateral balanced occlusion (BBO) on denture satisfaction and kinesiographic parameters of complete denture wearers, by means of a cross-over trial. Fifty edentulous patients received new maxillary and mandibular complete dentures. Afte...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2842.2012.02299.x
更新日期:2012-08-01 00:00:00
abstract::The placement of dental implants in the molar region of the maxilla is often difficult because of insufficient bone volume and the inferior bone quality. In order to avoid these limitations, the pillar of bone, which is composed of the maxillary tuberosity, the pyramidal process of the palatine bone and the pterygoid ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2001.00741.x
更新日期:2001-02-01 00:00:00
abstract::Oral Function, Orofacial Pain, Orofacial Appearance, and Psychosocial Impact-the dimensions of oral health-related quality of life-capture dental patients' oral health problems worldwide and regardless of whether the patient currently suffers from oral diseases or intends to prevent them in the future. Using scores fo...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.13133
更新日期:2020-12-10 00:00:00