Abstract：
:The use of nickel-containing alloys in dentistry has been questioned because of the biological liabilities of nickel and the release of nickel ions from dental appliances into the oral cavity. The uptake of nickel by cells in the oral tissues is a critical factor in assessing the biological liabilities of nickel. Nickel uptake by macrophages may be particularly important because of the central role of macrophages in the inflammatory process and the known role of the macrophage in orchestrating the response to biomaterials. The aims of the current study were to assess the reversibility of the uptake of nickel from human macrophages and determine the portion of the nickel which reaches the nuclei as a function of time. Cellular nickel content was measured by means of atomic absorption spectrometry. Nuclear nickel content was assessed after fractionating cells. The results showed that nickel was rapidly taken up by macrophages and that the nickel accumulated in the nucleus in as little as 8 h. After 48 h, over 60% of the cellular nickel was in the nucleus. Once taken up, the nickel was lost at a lower rate. The rate of loss decreased as the initial exposure time to the nickel increased. Thus, the results indicated that macrophages may accumulate nickel if the time between exposures is insufficient to reverse the uptake. Further studies are necessary to correlate the retention of nickel with impaired function of macrophages and to further define the biological risks of using nickel in dental alloys.
journal_name
J Oral Rehabiljournal_title
Journal of oral rehabilitationauthors
Edwards DL,Wataha JC,Hanks CTdoi
10.1046/j.1365-2842.1998.00197.xsubject
Has Abstractpub_date
1998-01-01 00:00:00pages
2-7issue
1eissn
0305-182Xissn
1365-2842journal_volume
25pub_type
杂志文章abstract：:Physiological tooth movements during mandibular excursions with and without occlusion have been considered. Using electronic and pantographic techniques, anterior guidance and tooth movements during simulated mastication (without a bolus) were investigated. Investigations in the absence of occlusion showed that elasti...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.1981.tb00523.x
更新日期：1981-11-01 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：:This study examined properties of four composite veneering materials polymerized with two different photo-curing units for the purpose of evaluating curing performance of the combination of composite material and curing unit. Two microfilled (Dentacolor and Thermoresin LC II) and two hybrid (Cesead II and Solidex) com...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1046/j.1365-2842.1998.00241.x
更新日期：1998-05-01 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 mechanical model (link quadrilateral bell crank) is used to demonstrate the equilibrium of normal force vectors transmitted to the masticatory system and maxillary occlusal biteplane splints with different designs. Occlusal contacts were imposed on the proposed models under the action of a masticatory force vector w...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.1995.tb00090.x
更新日期：1995-04-01 00:00:00
abstract：:Mandibular jaw opening was related with general joint mobility in a non-patient adolescent group. The angular rotation of the mandible at maximum jaw opening was slightly larger in females than in males and significantly larger in hypermobile individuals. No significant relationship between linear measuring of maximal...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.1992.tb01112.x
更新日期：1992-09-01 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：:Surface electromyography was used to study the function of the anterior temporal, surface masseter, deep masseter and anterior digastric muscles of 14 patients after complete rehabilitation of occlusion with fixed prostheses and/or removable partial prostheses. All patients had a balanced occlusion with protection by ...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.1995.tb00211.x
更新日期：1995-01-01 00:00:00
abstract：:Mechanical cleaning of dentures is effective in preventing infections such as aspiration pneumonia and denture stomatitis. For denture wearers with a physical handicap and the elderly, however, mechanical cleaning can present problems. The aim of this study was to investigate the effect of coating denture base acrylic...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.2009.02012.x
更新日期：2009-12-01 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：:Obstructive sleep apnoea syndrome (OSAS) is associated with several sleep disorders and sleep-related problems. Therefore, the aim of this study was to compare the effects of a mandibular advancement device (MAD) with those of nasal continuous positive airway pressure (nCPAP) on self-reported symptoms of common sleep ...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章,随机对照试验
doi：10.1111/joor.12505
更新日期：2017-06-01 00:00:00
abstract：:It is considered that the information of chewed food, such as size and texture, is important for smooth mastication. In this study, we analysed aspects of the control of occlusal force, by experimentally reproducing situations in which the hardness of food changed unpredictably during mastication, using a device that ...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.2007.01746.x
更新日期：2008-01-01 00:00:00
abstract：:We aimed to investigate mastication predominance in healthy dentate individuals and patients with unilateral posterior missing teeth using objective and subjective methods. The sample comprised 50 healthy dentate individuals (healthy dentate group) and 30 patients with unilateral posterior missing teeth (partially ede...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/joor.12403
更新日期：2016-08-01 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：:Resonance frequency (RF) analysis is a non-invasive, objective and sensitive technique developed for implantology where it measures the stability of the implant in osteotomy site. Although many studies were performed by the previous electronic version of RF analyzer, a very limited number of studies were carried out w...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.2009.01990.x
更新日期：2009-10-01 00:00:00
abstract：:The patient's satisfaction with removable partial denture (RPD) therapy has become an increasingly important factor in prosthetic treatment. This study examined patients' satisfaction with RPDs in relation to some socio-economic variables, patients' habits of wearing and cleaning RPDs, comfort of wearing RPDs and diff...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1046/j.1365-2842.2003.01039.x
更新日期：2003-08-01 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：: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：:Contracture of jaw-closing muscles is one of the causes of limitations of jaw opening. In contracture patients who have no history of trauma or infection, it is not easy to distinguish contracture from temporomandibular joint (TMJ) closed lock (TCL). The purpose of this study was to clarify whether there is any differ...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1046/j.1365-2842.2002.00965.x
更新日期：2002-11-01 00:00:00
abstract：:This study aimed to examine the association between the degree of recovery from dysphagia and changes in functional independence measure (FIM) items in stroke patients after acute phase by conducting a historical cohort study, because none explains the effects of activities of daily living (ADL) on recovery of swallow...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/joor.12212
更新日期：2014-12-01 00:00:00
abstract：:The fracture strengths of stylized all-ceramic crowns manufactured using an yttrium-oxide-partially-stabilized (Y-TZP) zirconia ceramic core (Denzir) veneered with lithium disilicate glass-ceramics (IPS Empress 2 or IPS Eris) were evaluated. The Denzir cores were manufactured in two ways: either with different thickne...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.2004.01284.x
更新日期：2004-07-01 00:00:00
abstract：:Frontal chewing patterns have been classified in a manual and visual way on recorded movement tracks. The main aim of this study was to use a chain code method to extract the direction and curvature features of the tracks in the frontal plane. The test results indicate that the chain code can stand for the direction a...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.1995.tb01570.x
更新日期：1995-03-01 00:00:00
abstract：:In this study, the experimental denture base on the hard palate of the molar region of osteoporotic rats was designed to cover without any mechanical pressure or to load continuous pressure (0.5, 1.5 or 3.4 kPa). Experimental osteoporosis was induced by ovariectomy and feeding on a low calcium diet. Histopathological ...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1046/j.1365-2842.2002.00863.x
更新日期：2002-06-01 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：:The bonding of resin-modified glass ionomer cements to dentin remains a challenge in clinical routine. In an attempt to improve this property, different materials and techniques have been proposed. This study investigated the shear bond strength of resin-modified glass ionomer cements (Vitremer, 3M/ESPE and Fuji II LC...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.2006.01536.x
更新日期：2006-02-01 00:00:00
abstract：:This study aimed to assess possible fluoride uptake by cavity walls following a single application of Duraphat around class V or I amalgam restorations which were inserted in seventeen human premolars in vitro and in vivo. Six cavities were lined with one layer of Copalite before insertion of the restorations. After a...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.1980.tb00433.x
更新日期：1980-03-01 00:00:00
abstract：:In-office products containing oxalates have been claimed to be clinically effective in reducing dentine sensitivity, although there has been limited supporting clinical data. The rationale for their use appears to be based on their potential to act as occluding and/or nerve desensitizing agents. Four commercially avai...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1046/j.1365-2842.2001.00775.x
更新日期：2001-11-01 00:00:00
abstract：:Low intensity lasers have been used by clinicians to improve healing and reduce pain in humans. Lasing also results in new bone formation around hydroxyapatite implants and a significant increase in the total bone area. However, the exact mechanism of cell biostimulation by laser is still unclear. This study biochemic...
journal_title：Journal of oral rehabilitation
pub_type： 杂志文章
doi：10.1111/j.1365-2842.2006.01601.x
更新日期：2006-08-01 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
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
