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 alloy more thoroughly. After specimen preparation, the nineteen different amalgams were aged at 37 degrees C for either one day or one week. Then creep was determined at a temperature of 22.5 degrees C and a compressive stress of 117 MN/m2. F0 turns out to depend upon both the ageing time as well as on the choice of the alloy. As expected, t0 shows up substantial differences between the respective amalgams, whereas the differences between the two ageing are absent or relatively small. The factor alloy significantly influences m. However, the ageing time exerts no significant influence upon m.
journal_name
J Oral Rehabiljournal_title
Journal of oral rehabilitationauthors
Vrijhoef MM,Lourens FL,Leijdekkersgovers AFdoi
10.1111/j.1365-2842.1983.tb00129.xsubject
Has Abstractpub_date
1983-07-01 00:00:00pages
343-7issue
4eissn
0305-182Xissn
1365-2842journal_volume
10pub_type
杂志文章abstract::The following review of the literature considers various clinical methods for evaluating dental materials. The first section looks at studies that have considered the general handling properties of dental materials in clinical practice (the pragmatic trial). The second section considers studies that have used retrospe...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2842.1997.00437.x
更新日期:1997-02-01 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::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::Fluorinated Bis-GMA was synthesized and used with other commercially available fluorinated monomers and diluents to prepare hydrophobic composites. The composites were formulated as one-paste systems and were polymerized using blue light. Mechanical properties and water-related qualities were determined. Fluorination ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1996.tb01227.x
更新日期:1996-03-01 00:00:00
abstract::Nocturnal bite force during sleep associated bruxism was measured in 10 subjects. Hard acrylic dental appliances were fabricated for the upper and lower dentitions of each subject. Miniature strain-gauge transducers were mounted to the upper dental appliance at the right and left first molar regions. In addition, thin...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2001.00692.x
更新日期:2001-05-01 00:00:00
abstract::Forces required by complete dentures for penetrating some commonly used food items were measured experimentally. These forces were compared with the maximal bite forces of twenty-seven complete denture wearers. Food items that required the greatest forces in direct closure were rye bread (167 N), raw carrot (118 N), b...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1987.tb00757.x
更新日期:1987-11-01 00:00:00
abstract:BACKGROUND:Masticatory movement occurs complicatedly and bilaterally. Although the tongue plays an important role in mastication, bilateral tongue function during mastication has not been clarified yet. OBJECTIVE:To investigate the effect of food properties on posterior tongue activity and coordination of muscles bila...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.13135
更新日期:2020-12-15 00:00:00
abstract::Two chemically different glass ionomer cements (Ketac Fil and ChemFil II Caps) and three different methods of conditioning the surface for repair were evaluated. Specimens of each material were prepared, aged and sectioned. The cut surfaces were treated with either phosphoric acid, polyacrylic acid or a combination of...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1994.tb01180.x
更新日期:1994-11-01 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::Epidemiological investigations have shown that nickel is a potent sensitivity producing agent. However, it is not known if intra-oral use of nickel-chrome alloys can cause any sensitization reaction. The purpose of this study was to determine if nickel-chrome alloys used in dentistry influence nickel levels in saliva ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1992.tb01576.x
更新日期:1992-07-01 00:00:00
abstract::A group of 248 randomly selected high school girls, aged 15-16 years, completed a questionnaire and were examined clinically with regard to various oral habits and signs and symptoms of temporomandibular disorders (TMD). Common habits reported in the literature, such as gum chewing, nail biting, biting foreign objects...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2000.00484.x
更新日期:2000-01-01 00:00:00
abstract::Food texture affects chewing movement but it is not known if it also affects the chewing-side pattern. This study determined the chewing sides of three test foods with different textures during habitual chewing. Twenty healthy dental students (aged 20-24 years) chewed pieces of pork jerky, fresh asparagus and almonds ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2006.01535.x
更新日期:2006-01-01 00:00:00
abstract::The relationship between isotonic jaw-opening and jaw-closing muscle function was studied using a newly developed apparatus which enables load and velocity to be detected simultaneously. The following results were obtained from 17 male adults (age range 22-32 years) without any occlusal dysfunction. (i) The force-velo...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1991.tb00045.x
更新日期:1991-03-01 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::Titanium (Ti) is thought to be a highly biocompatible material, and its clinical applications are becoming increasingly frequent. However, there have recently been some clinical papers reporting hypersensitivity and allergic reactions to Ti. The purpose of this study was to assess the corrosive properties of Ti in the...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2001.00690.x
更新日期:2001-06-01 00:00:00
abstract::Qualitative somatosensory testing (QualST) is a simple chairside test. It can be used to roughly assess the presence or absence of altered somatosensory function. To use QualST clinically, it is important to assess its agreement with quantitative sensory testing (QST). The aims of this study were to assess the agreeme...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1111/joor.12455
更新日期:2017-01-01 00:00:00
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 present study investigated the asymmetry of masticatory muscle activity during maximal intercuspal clenching in healthy subjects and subjects with stomatognathic dysfunction syndrome. Stomatognathic dysfunction syndrome, unilateral mastication and the asymmetry of masticatory muscle activity appear to be related t...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1995.tb01069.x
更新日期:1995-09-01 00:00:00
abstract::This review evaluates the evidence for the diagnostic efficacy of cone beam computed tomography (CBCT) for impacted teeth and associated features. PubMed, Embase and the Cochrane Library were searched using specific indexing terms and reference lists were hand searched. Two reviewers selected relevant publications on ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2842.2010.02141.x
更新日期:2011-03-01 00:00:00
abstract::The present study was designed to analyse the average depth of the microporosity of a nickel-chromium (Ni-Cr) system alloy (Verabond II). The metal surface was subject to one of the following surface treatment: (i) Electrolytic etching in nitric acid 0.5 N at a current density of 250 mA cm(-2); (ii) chemical etching w...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2003.01102.x
更新日期:2003-05-01 00:00:00
abstract::The activity of anterior temporal muscle, the number of tooth contacts, and total duration of closure during maximal and habitual clenching were studied in varied chair positions. Fifteen subjects were evaluated. The means for the muscle activity of anterior temporal muscle during habitual clenching were 63.5-73.5% of...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:
更新日期:1997-03-01 00:00:00
abstract::One important mechanical property of dental ceramics is fracture toughness, KIC, which represents the serviceability in the oral cavity, such as the resistance to marginal fracture. KIC values of several dental ceramics, natural tooth enamel and industrial ceramics were examined by use of the indentation microfracture...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1990.tb01426.x
更新日期:1990-11-01 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:BACKGROUND:In the past few years, growing interest was given to the relationship between the dental occlusion and the body balance. While most research focused on this relationship at static conditions, it is evident that the contribution of the sensory information for balance control is different depending on the envi...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,评审
doi:10.1111/joor.12767
更新日期:2019-04-01 00:00:00
abstract::The aim of this study was to measure the colour stability and viscoelastic properties of three commercially available soft lining materials in vitro, by exposing them to 3% erythrosine, tartrazine and sunset yellow solutions. The colour changes were determined using a computer controlled spectrophotometer. The colour ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1999.00477.x
更新日期:1999-10-01 00:00:00
abstract::Experimental tooth clenching was performed by fourteen human subjects in order to determine the onset of the subjective sensations of jaw muscle fatigue and jaw muscle pains, the ability to endure jaw muscle pains, and other discomforts. During production of maximal voluntary isometric tension by the elevator jaw musc...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1979.tb01272.x
更新日期:1979-04-01 00:00:00
abstract::Head flexion and extension movements near the natural head position (NHP) were analysed for the location of the mean instantaneous centre of rotation (ICR). Forty-six healthy young adults (30 women and 16 men) with sound dentitions, free from cranio-cervical disorders, performed habitual movements that were automatica...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.1997.d01-300.x
更新日期:1997-05-01 00:00:00
abstract::A total of 969 proximal contacts in forty volunteer subjects was examined for proximal contact integrity with shim stock. It passed uninhibited through 88% of the contacts. Neither sex nor age affected the evaluation; however, shim stock was more likely to pass through contacts with enamel surfaces than those which we...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1987.tb00697.x
更新日期:1987-01-01 00:00:00
abstract::A survey of 233 elderly subjects living in the district served by the Halton Health Authority (Cheshire, England) investigated the relationship between the age of dentures, their need for replacement and the presence of any oral pathological lesions. The retention, stability, occlusion and cleanliness of the dentures ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1989.tb01320.x
更新日期:1989-01-01 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