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 analysis were further developed in order to identify and quantify the component phases present in the two regions. The outer, somewhat clumped region contained principally a network of strands and particles of eta 1 (Cu6Sn5) composition and some gamma 1 phase. After phase composition analysis, the inner region was found to contain eta 1 phase and substantial quantities of gamma 1 phase, a Cu-Hg phase (probably Cu4Hg3 formulation) and unreacted Ag-Cu. The two regions may be best described as eta 1-rich and eta 1-sparse, respectively.
journal_name
J Oral Rehabiljournal_title
Journal of oral rehabilitationauthors
Bryant RWdoi
10.1111/j.1365-2842.1985.tb00619.xsubject
Has Abstractpub_date
1985-01-01 00:00:00pages
37-48issue
1eissn
0305-182Xissn
1365-2842journal_volume
12pub_type
杂志文章abstract::This study investigated the prevalence of a preferred chewing side (PCS) and associations between a PCS and signs of temporomandibular disorders (TMD), antagonist contact and prosthetic restoration. A population representative sample of 4086 adults of the cross-sectional epidemiologic 'Study of Health in Pomerania' (S...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2842.2007.01790.x
更新日期:2008-08-01 00:00:00
abstract::Confusion about the relationship between dental occlusion and the temporomandibular disorders (TMD) has been evident in the literature for many years. Previous studies have supported the concept of a multifactorial aetiology of TMD, the occlusal factor in general being of minor importance. The purpose of the study was...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2004.01309.x
更新日期:2004-08-01 00:00:00
abstract::Three experimental inhomogeneous microfilled composites (IMC) containing spherical prepolymerized particles with an interpenetrating network (IPN) were compared with the reference materials Estic MF, Adaptic and the amalgam Dispersalloy in vitro. With surface roughness tests, different polishing procedures were invest...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1984.tb00602.x
更新日期:1984-09-01 00:00:00
abstract::The occlusal contact area wear resistance of two new composite restoratives (Z250 and P60) was investigated and compared with two existing materials (Silux and Z100) using a reciprocal compression-sliding test apparatus. Six wear specimens were made for each material and subjected to wear testing at 20 MPa with artifi...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2002.00814.x
更新日期:2002-02-01 00:00:00
abstract::Intermaxillary elastics are commonly used in orthodontic treatment, yet the exact mechanism by which they effect tooth movement has been unclear. A photoelastic model was produced to stimulate this type of therapy in examples of Class II and III malocclusions. In the open situation, inter-arch activity precipitated oc...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1978.tb01209.x
更新日期:1978-04-01 00:00:00
abstract::During maximum clenching in the intercuspal position, surface electromyograms of left masseter and anterior temporal muscles were sampled in 16 healthy subjects with natural dentitions to establish a four-order, autoregressive (AR) moving-average (MA) model of the myoelectrical signals. The correlation coefficients an...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1994.tb01170.x
更新日期:1994-09-01 00:00:00
abstract::The aims of this study were to develop a device for measuring the tightness of proximal tooth contact and to evaluate the proximal contact tightness using this device at rest and during clenching. Twenty young adult volunteers with healthy dentition participated in this experiment. The tightness of proximal tooth cont...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2004.01181.x
更新日期:2004-06-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to analyse morphological changes in the upper airways in patients with anterior open bite treated with temporary anchorage devices for intrusion of upper posterior teeth. MATERIALS AND METHODS:Twelve nonobese (body mass index: <25) anterior open bite patients between the ages of 19 ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.12712
更新日期:2018-12-01 00:00:00
abstract::Some alginate impression materials produce rough, chalky, soft surfaces on gypsum casts. This is recognized by various standards, which include tests for an alginate's compatibility with gypsum, and its capacity to record details and impart these to a gypsum cast. These qualities were looked at in this study. The meth...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1986.tb01559.x
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:Limitation of mouth opening is a common complaint following orthognathic surgery. OBJECTIVES:This investigation reports on the progress of maximum incisal opening following orthognathic surgery and compares the impact of two different osteosynthesis methods on mouth opening in female patients with Class III...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.13059
更新日期:2020-10-01 00:00:00
abstract::This in vitro study compared marginal gap formation in class II resin composite restorations. Forty caries-free extracted molars were prepared in a standardized manner for class II restoration by one of four methods: bulk- or incrementally-placed light-activated resin composite (Amelogen), and bulk- or incrementally-p...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2003.01082.x
更新日期:2003-10-01 00:00:00
abstract:BACKGROUND:The most common non-dental pain in the orofacial region is pain associated with temporomandibular disorders (TMD), and jaw exercises are a common treatment in these cases. Since masticatory myofascial pain has components of an affective and cognitive nature, knowledge about the patients' experiences of the c...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.12816
更新日期:2019-09-01 00:00:00
abstract::In this study we investigated the effect of metal wire bonding to acrylic resin on the fracture resistance of an acrylic denture base material construction. Two different bonding methods were tested, and after measuring the resistance, the surface of the wires were examined by a scanning electron microscope. The effec...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1993.tb01606.x
更新日期:1993-05-01 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::Full-arch immediate loading implant rehabilitations provide patients with compromised dentition an effective treatment to improve their aesthetic and function. Aim of this prospective cohort study was to investigate the correlation between masticatory ability and gastric emptying rates among these patients. Ten subjec...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/joor.12301
更新日期:2015-09-01 00:00:00
abstract::The aim of this study was to identify and characterize aetiological and predisposing factors in denture-related stomatitis (DRS), by means of a case-control, transversal study, in a large cohort of 140 persons wearing removable maxillary polymethylamethacrylate prostheses. Data were obtained by (1) a questionnaire tha...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2007.01709.x
更新日期:2007-06-01 00:00:00
abstract::Magnetically retained sectional obturator prostheses, consisting of a hollow obturator portion made of thin silicone layer over a resin frame and a denture portion, were fabricated to alleviate some of the limitations of silicone materials, and applied to two edentulous patients with maxillectomy defects. The silicone...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2000.00584.x
更新日期:2000-09-01 00:00:00
abstract::From a group of consecutive patients referred for diagnosis and treatment of functional disturbances of the masticatory system, two groups, a young group (16-30 years, 113 subjects) and an older group (55-80 years, sixty-three subjects) were selected for a follow-up study. A self-administered questionnaire was mailed ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1986.tb00643.x
更新日期:1986-03-01 00:00:00
abstract::summary Ceramic inserts are reported to possibly reduce polymerization shrinkage for posterior resin composite fillings. The aim of the present investigation was to evaluate the effect of different insert systems before and after thermomechanical loading. Sixty sound human third molars received occlusomesial Class II ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2842.2005.01459.x
更新日期:2005-08-01 00:00:00
abstract::There is a consensus on treatment strategies for temporomandibular disorders (TMDs) being reversible. Among reversible therapies, physiotherapy is often chosen for the treatment of TMD pain and dysfunction because it is simple and non-invasive, it has a low cost as compared with other treatments, it allows an easy sel...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2842.2005.01513.x
更新日期:2005-11-01 00:00:00
abstract::The aim of this study was to develop a three-dimensional (3D) finite element model (FEM) of the first maxillary premolar in order to compare the stress profiles in the buccal and palatal cervical regions. The 3D geometry of the tooth was reconstructed, the solid model was transferred into a finite element program wher...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.2005.01455.x
更新日期:2005-07-01 00:00:00
abstract::The aim of this investigation was to evaluate the immunohistochemical expression of cyclooxygenase-2 (COX-2) in the temporomandibular joint (TMJ) and to compare it with that control specimens. Expression of COX-2 in the TMJ disc and the synovial membrane in 26 human TMJ samples (internal derangement of TMJ; n=16, and ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2002.00969.x
更新日期:2002-12-01 00:00:00
abstract::The viscoelastic properties of denture base polymers, such as poly(methylmethacrylate) (PMMA), polycarbonate (PC), polysulfone (PSF) and polyethersulfone (PES) which have been used in current clinical dentistry were investigated. In addition, water absorption, diffusion coefficient of water into material, cubical expa...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.1365-2842.2000.00545.x
更新日期:2000-06-01 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::The purpose of this study was to evaluate the microleakage characteristics of laminate veneers with different incisal edge preparation. Two groups of 20 extracted human maxillary central incisors were used for fabricating laminate veneers. The cervical margin of all veneers were placed 1 mm above the cementoenamel jun...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1046/j.0305-182X.2003.01220.x
更新日期:2004-03-01 00:00:00
abstract::The goals of an international taskforce on somatosensory testing established by the Special Interest Group of Oro-facial Pain (SIG-OFP) under the International Association for the Study of Pain (IASP) were to (i) review the literature concerning assessment of somatosensory function in the oro-facial region in terms of...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章,实务指引,评审
doi:10.1111/j.1365-2842.2010.02196.x
更新日期:2011-05-01 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::Salivary flow rates were monitored in two patients, treated with acupuncture for post-radiotherapy xerostomia. The flow rates improved after acupuncture and the effect persisted during the 2-year observation period. ...
journal_title:Journal of oral rehabilitation
pub_type: 杂志文章
doi:10.1111/j.1365-2842.1993.tb01635.x
更新日期:1993-09-01 00:00:00
abstract::The purpose of this study was to evaluate effect of a calcium hydroxide suspension [Ca(OH)2] or glutaraldehyde based dentine primer (GDP) to reduce tooth sensitivity after full crown preparation. Thirty-six patients were treated with Ca(OH)(2) on one tooth and with GDP on another. Patients completed a questionnaire re...
journal_title:Journal of oral rehabilitation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2842.2003.01238.x
更新日期:2004-04-01 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