Abstract:
:Polymorphonuclear neutrophils (PMNs) comprise over 90 per cent of leukocytes in the oral cavity. Although these phagocytic cells have primary defence roles in the gingiva, their stimulation by micro-organisms may also cause substantial tissue damage due to the release of lysosomal enzymes and oxygen radicals. Adherence of PMNs to the endothelium and their subsequent diapedesis and egress to areas of infection are considered early vital events in the inflammatory process. In this study, oral bacteria were screened to determine their direct effects on PMN activation using an in vitro method of measuring PMN adherence to Dacron fibres. Most of the bacteria investigated increased PMN adherence, indicating their potential to cause tissue damage through the release of PMN lysosomal enzymes and other products. In contrast, Bacteroides species suppressed PMNs, indicating their ability to circumvent the phagocytic cells, thus gaining a potential advantage in dental colonization. The modulatory effects of oral bacteria on PMN activation may have significant roles in the immunopathogenesis of oral disease.
journal_name
Aust Dent Jjournal_title
Australian dental journalauthors
Seow WK,Whitman LM,Bird PS,Thong YHdoi
10.1111/j.1834-7819.1992.tb03049.xsubject
Has Abstractpub_date
1992-04-01 00:00:00pages
121-5issue
2eissn
0045-0421issn
1834-7819journal_volume
37pub_type
杂志文章abstract::This study was conducted on 48 impacted and 51 erupted maxillary permanent canine teeth extracted from healthy patients aged 13-73 years. Longitudinal buccolingual ground sections were prepared. The distance between the edges of cementum and enamel in each specimen was measured with an eyepiece micrometer. A correlati...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1997.tb00119.x
更新日期:1997-06-01 00:00:00
abstract:BACKGROUND:Continuing education (CE) is an essential professional activity. In the last decade, CE has been actively pursued by the medical profession in Australia and abroad. However, the uptake of CE in dentistry has been much slower and there is minimal Australian data on dental CE. METHODS:To determine the level o...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2001.tb00569.x
更新日期:2001-06-01 00:00:00
abstract::A study of 4,278 country and city kindergarten children living in South Australia showed 63 and 59 per cent received fluoride tablets at some time and 17 per cent received daily doses. Lower dmf scores were found in those taking fluoride tablets but of decreasing value in the older children. Where no fluoride was take...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1975.tb03507.x
更新日期:1975-02-01 00:00:00
abstract:BACKGROUND:The aim of this study was to identify the nature and causes of deterioration and failure in dental handpiece ball bearings and thus provide guidance for clinical handling for service longevity. METHODS:The bearings of 36 turbine assemblies were dismantled for visual inspection, documented using a digital ca...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12112
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND:The cleaning of endodontic and all dental instruments prior to sterilization is a prerequisite for their processing for re-use. This study aimed to develop a clinically practical cleaning protocol for rotary nickel-titanium (NiTi) endodontic files prior to sterilization. METHODS:Cleaning experiments were co...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2004.tb00045.x
更新日期:2004-03-01 00:00:00
abstract::Surgical repositioning of the dento-skeletal components of the middle-third of the face, combined with appropriate orthodontic treatment, can be used to improve function and aesthetics. However, the attainment of three-dimensional stability following corrective jaw surgery continues to be a major problem in the postsu...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1996.tb05650.x
更新日期:1996-02-01 00:00:00
abstract::The first year of a new Bachelor of Dental Surgery curriculum was introduced at the University of Adelaide in 1993. Four integrated streams replaced the previous large number of separate subjects, with an overall reduction in formal contact hours, more exposure to clinical practise, and an emphasis on problem-based le...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1996.tb03145.x
更新日期:1996-10-01 00:00:00
abstract::The emphasis of Australian Government policy is on the promotion of good health in later life and positive experiences with ageing. Conceptually, a new gerontology framework has replaced the study of disease, decline, loss and disability. Within this framework, health promotion offers a mechanism by which individuals ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12292
更新日期:2015-03-01 00:00:00
abstract:BACKGROUND:Homeless people experience a much higher burden of general health conditions and have much poorer oral health than the rest of the population. The aim of this study was to determine the oral health impacts and general quality of life of an urban homeless population. METHODS:A convenience sample of 58 adults...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12167
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:Psychosomatic factors and their association with dermatological disorders are well recognized, yet their importance in oral lichen planus (OLP) is still debated. This study was done to determine the importance of psychosocial stressors in patients with OLP. METHODS:An analytical age-sex matched double contr...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2004.tb00072.x
更新日期:2004-12-01 00:00:00
abstract::A poor appreciation of the role of surgery in the management of temporomandibular disorders (TMD) may result in some patients being denied access to appropriate care. While surgery is often considered as an option of last resort, there are instances where surgery is the definitive and sometimes the only treatment opti...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.2011.01351.x
更新日期:2011-09-01 00:00:00
abstract::Dental implants have been a routine part of dental practice for many years and are performed by a variety of practitioners with different backgrounds and training. This paper will outline the principles and practical surgical aspects of 'simple' implant placement against a background of our current understanding of th...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12588
更新日期:2018-03-01 00:00:00
abstract:BACKGROUND:Information on the timing and sequence of human tooth emergence is valuable when analysing human growth and development, predicting the age of individuals, and for understanding the effects of genetic and environmental influences on growth processes. This paper provides updated data on the timing and sequenc...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2010.01230.x
更新日期:2010-09-01 00:00:00
abstract::Comment is made regarding the cost, related to working properties, of non-precious metal alloys compared to precious metal alloys for ceramics and their possible potential for the production of allergic response. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1977.tb04435.x
更新日期:1977-02-01 00:00:00
abstract::Haemophilia A, the most common of bleeding disorders is characterized by bruising and spontaneous bleeding into the joints but may remain undiagnosed if present in the mild form. A case is discussed where episodes of bruising and joint swelling as a child were misdiagnosed as rheumatic fever and the bleeding disorder ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1998.tb00171.x
更新日期:1998-08-01 00:00:00
abstract::The radiopacity of 33 commercially available composite materials was measured in terms of their equivalent thickness of an aluminum alloy per unit thickness of material. The theoretical significance of this definition was discussed. The radiopacities were found to vary by more than an order of magnitude. Although near...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1981.tb02443.x
更新日期:1981-04-01 00:00:00
abstract::Accidental contact of various chemicals in dentistry may cause damage to the gingiva. A male patient presented for a full mouth rehabilitation with ceramic crowns. The patient underwent the steps of ceramic crown preparation uneventfully. At the time of crown delivery, cotton rolls were placed in several vestibular ar...
journal_title:Australian dental journal
pub_type:
doi:10.1111/adj.12820
更新日期:2021-01-12 00:00:00
abstract::Westmead Centre is a large teaching hospital of 925 acute treatment beds planned to provide a comprehensive range of general and specialist referral services to the rapidly expanding population of the western suburbs of Sydney. The hospital was conceived in 1968 and opened for patient treatment in 1978. The Dental Cli...
journal_title:Australian dental journal
pub_type: 历史文章,杂志文章
doi:10.1111/j.1834-7819.1981.tb05230.x
更新日期:1981-10-01 00:00:00
abstract::The nature and the diagnosis and prognosis of the two forms of viral hepatitis is discussed. The possibility of transmission of these diseases during dental treatment to other patients or to dentists or their staff is considered and measures to reduce this risk are suggested. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1977.tb05154.x
更新日期:1977-12-01 00:00:00
abstract::Service-mix can reflect changes in demographic factors, oral health, patient demand and treatment philosophies. The aim of this study was to compare service-mix by patient age in 1988 with baseline data from 1983. A weighted, stratified random sample of dentists in Australia was surveyed by mailed questionnaire in 198...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1994.tb05569.x
更新日期:1994-10-01 00:00:00
abstract::The ageing Australian population living in the new millennium has dental needs that are very different and more complex than those experienced by previous older adult cohorts during the twentieth century. A summary of the oral health status of older Australians is presented, together with a review of the important rel...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.2003.tb00001.x
更新日期:2003-03-01 00:00:00
abstract::The necessary improvement of the bonding of denture teeth to the base resin has been hampered by inconsistent results and the consequent lack of clear guidance as to the best procedure to use. This state of affairs is in part due to poor experimental design. The tensile strength of notched planar interfaces between ac...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1995.tb04804.x
更新日期:1995-08-01 00:00:00
abstract::Periostitis ossificans is a rare condition which has not been previously reported arising from an infected dentigerous cyst. This paper reports such a case in a twelve-year-old boy, and reviews the literature concerning periostitis ossificans. ...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.1991.tb00722.x
更新日期:1991-08-01 00:00:00
abstract::In this, the second of two papers on the relationships between dental treatment and dental health, the philosophical basis of Minimum Intervention Dentistry is presented. This approach to patient care has several distinct treatment modalities. These range from preventive measures and fissure sealants, through monitori...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1992.tb00744.x
更新日期:1992-06-01 00:00:00
abstract::Syphilis is a sexually transmitted infectious disease caused by Treponema pallidum. Cases of syphilis have increased in frequency and are challenging when affecting the elderly. The main causes of increased prevalence of syphilis are sexual promiscuity, lack of knowledge about the disease and decreasing use of barrier...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12085
更新日期:2013-09-01 00:00:00
abstract::The presence of supernumerary teeth, although not uncommon, occurs usually in the premaxillary region. Furthermore, examples of multiple supernumerary teeth in one patient are rare. A case involving the presence of multiple supernumerary teeth in all quadrants in described. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1998.tb00146.x
更新日期:1998-02-01 00:00:00
abstract::The F concentrations in plaque and in underlying enamel were determined in a sample of 99 schoolchildren aged 8.4 years (S.D. = 0.37), comprising four groups, exposed life-long to contrasting concentrations of F in the water (range less than or equal to 0.12 ppm to 2.8 ppm) and to supplements of 350 mg F/kg domestic s...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1982.tb02465.x
更新日期:1982-12-01 00:00:00
abstract:BACKGROUND:Enamel etching for brackets is usually done with phosphoric acid. Er:YAG lasers have been recently used for this purpose with conflicting results. The effects of lasers on tooth demineralization and the effects of different combinations of laser treatments and bonding agents were evaluated in this study. ME...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2012.01679.x
更新日期:2012-06-01 00:00:00
abstract::The aim of this study was to investigate the current published work relating to the clinical benefits of the use of systemic azithromycin as an adjunct to non-surgical periodontal therapy. A published work search of PubMed, EMBASE and Cochrane Register of Controlled Trials up to 27 April 2016 was undertaken. The large...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/adj.12448
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:This study aimed to investigate the effect of silver and fluoride ions on demineralization of enamel. METHODS:The coronal parts of 40 extracted sound premolars were prepared into tooth blocks. An unvarnished occlusal surface window (OW) and a flat buccal/lingual surface window (FW) were created for each too...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2011.01641.x
更新日期:2012-03-01 00:00:00