Abstract:
BACKGROUND:Titanium is generally considered a safe metal to use in implantation but some studies have suggested that particulate titanium may cause health problems either at the site overlying the implant or in distant organs, particularly after frictional wear of a medical prosthesis. It was the purpose of this investigation to study the levels of dissemination of titanium from threaded screw type implants following placement of single implants in sheep mandibles. METHOD:Twelve sheep were implanted with a single 10x3.75mm self-tapping implant for time intervals of one, four and eight to 12 weeks. Four unoperated sheep served as controls. Regional lymph nodes, lungs, spleens and livers were dissected, frozen and subsequently analysed by Graphite Furnace Atomic Absorption Spectroscopy. RESULTS:Results associated with successful implants showed no statistically significant different levels of titanium in any organ compared to controls, although some minor elevations in titanium levels within the lungs and regional lymph nodes were noted. Two implants failed to integrate and these showed higher levels of titanium in the lungs (2.2-3.8 times the mean of the controls) and regional lymph nodes (7-9.4 times the levels in controls). CONCLUSIONS:Debris from a single implant insertion is at such a low level that it is unlikely to pose a health problem. Even though the number of failed implants was low, multiple failed implants may result in considerably more titanium release which can track through the regional lymph nodes. Results suggest that sheep would be an excellent model for following biological changes associated with successful and failed implants and the effect this may have on titanium release.
journal_name
Aust Dent Jjournal_title
Australian dental journalauthors
Frisken KW,Dandie GW,Lugowski S,Jordan Gdoi
10.1111/j.1834-7819.2002.tb00331.xsubject
Has Abstractpub_date
2002-09-01 00:00:00pages
214-7issue
3eissn
0045-0421issn
1834-7819journal_volume
47pub_type
杂志文章abstract::A case of central fibroma involving the mandible in a 58 year old woman is described. There was slight swelling of the left cheek and bone-hard bulging was detected on palpation but the patient had not complained of the swelling. The lesion was removed under general anaesthesia and then examined histopathologically. T...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1999.tb00214.x
更新日期:1999-06-01 00:00:00
abstract::This case report describes an approach to treatment for a patient with severe bone loss resulting from advanced periodontal diseae. A provisional splint was constructed in conjunction with suitable periodontal therapy. The purpose was to allow time for evaluation prior to deciding whether to commit the patient to perm...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1977.tb05117.x
更新日期:1977-10-01 00:00:00
abstract::The original design of a semi-precision extra-coronal attachment for partial dentures is illustrated, and its fabrication in a cast non-precious bondable alloy is described. A step-by-step method is also described of bonding multiple attachments in parallel for the retention and support of removable partial dentures. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1992.tb05895.x
更新日期:1992-12-01 00:00:00
abstract:BACKGROUND:There is evidence of a possible relationship between Archaea and periodontal disease; however, to date few studies have assessed the changes in prevalence of this domain after periodontal therapy. The aim of this randomized double-blind and placebo-controlled study was to assess if periodontal treatment with...
journal_title:Australian dental journal
pub_type: 杂志文章,随机对照试验
doi:10.1111/adj.12123
更新日期:2013-12-01 00:00:00
abstract::A recently discovered alloy of cobalt and samarium (CO5Sm) has exceptional magnetic properties. A laboratory evaluation was made of the grip force of samples of this alloy of a size suitable for dental use. A review of both dental and general literature points to the need for establishing, prior to widespread usage, t...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1978.tb02393.x
更新日期:1978-10-01 00:00:00
abstract::This final article in a series of three covering general practice aspects of erosion-abrasion presents a three-phase system for clinical management of erosive-abrasive damage. The first phase comprises pre-restorative case evaluation, initial measures to control factors predisposing to continued erosion-abrasion and w...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.1994.tb05537.x
更新日期:1994-02-01 00:00:00
abstract::A case of progressive anaphylactoid reaction complicating a local anaesthetic agent administered to a dental patient is described. The management of the condition is discussed. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1998.tb00159.x
更新日期:1998-06-01 00:00:00
abstract:BACKGROUND:Although community water fluoridation has been one of the cornerstone strategies for the prevention and control of dental caries, questions are still raised regarding its cost-effectiveness. This study assessed the impact of changing dental needs on the cost savings from community water fluoridation in Austr...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2010.01173.x
更新日期:2010-03-01 00:00:00
abstract::It is observed clinically that some years after MOD restoration of molar and premolar teeth, cuspal failures commonly occur. The period between restoration and failure is usually from eight to fifteen years. Evidence has been found, both from observations of fractured cusps and from a mathematical model of an idealize...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1982.tb05247.x
更新日期:1982-10-01 00:00:00
abstract::This laboratory study compared the retention of prefabricated posts in well-fitting and loose-fitting post canals using different cement materials. Eighty-three human teeth were prepared for post placement. One of zinc phosphate cement, polycarboxylate cement, glass ionomer cement or resin cement was used to cement ea...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1993.tb05449.x
更新日期:1993-02-01 00:00:00
abstract:BACKGROUND:This study aimed to evaluate microhardness and chemical analysis of carious and caries-affected dentine. The hypothesis tested was that calcium:phosphorous (Ca:P) ratios correlate with microhardness values. METHODS:Four carious human third molars were sectioned through the caries lesion in the mesiodistal l...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2005.tb00368.x
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND:Easily applied, age-specific standards are useful in assisting clinicians to decide whether the extent of tooth wear observed in a given patient at a specific age is acceptable or whether intervention is indicated. METHOD:A simple method of scoring tooth wear and previously established mathematical relation...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2003.tb00041.x
更新日期:2003-12-01 00:00:00
abstract::In this the second of a series of life cycles of dental trauma victims, the short and particularly long-term responses of four survivors of either multiple luxation injuries or avulsions have been documented over periods varying up to 41 years. The development of ankylosis, either in the short or longer term post trau...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12430
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Social determinants of oral health are complex and have been described by conceptual frameworks. A widely embraced model of children's oral health was published by Fisher-Owens et al. (2007), identifying theoretical constructs influencing oral health. The current study aimed to investigate community-level co...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12706
更新日期:2019-09-01 00:00:00
abstract::Previous studies have shown the ability for bone to grow under occlusive membranes. This study was undertaken to determine the time required for bone to form in the space created under the membrane and to determine the amount of bone that may be grown under the membrane. Thirty-two New Zealand white rabbits were divid...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1998.tb06094.x
更新日期:1998-04-01 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 effect of increasing cement thickness on the fracture strength of aluminous porcelain jacket crowns was investigated in this study. Thirty-three aluminous porcelain jacket crowns were divided into three groups. In Group 1, only platinum foil was used to provide cement space. In Group 2 two layers and Group 3 four ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1995.tb05607.x
更新日期:1995-02-01 00:00:00
abstract::Failure to treat the soft tissue component of dento-alveolar wounds may complicate wound healing mechanisms, retarding the rate of healing and increasing the risk of infection. A case is presented of a five-year-old with an intra-oral wound which, left untreated for eleven days, failed to resolve. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1993.tb05515.x
更新日期:1993-10-01 00:00:00
abstract::The response of the periodontal ligament to orthodontic extrusion of the incisor of a beagle was examined with light microscope and scanning electron microscope techniques. The ligament morphology was slightly altered by the procedure but was essentially normal. Teeth that were extruded and retained for 12 weeks exhib...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1995.tb03126.x
更新日期:1995-04-01 00:00:00
abstract::The objectives of this Malaysian study were to investigate the relationship between severity of trauma and interval before treatment, and the effect of delayed treatment on prognosis. A total of 123 traumatized permanent incisors were observed over a 24-month period. Results of this study suggest that the interval bet...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1990.tb05425.x
更新日期:1990-10-01 00:00:00
abstract::This paper reports a case of two separate dentigerous cysts in the mandible of one patient. An unusual feature was the relationship of one of the cysts to an unerupted lateral incisor. The prudence of accounting for any missing teeth in patients and the value of panoramic radiographic screening is illustrated. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1996.tb03135.x
更新日期:1996-10-01 00:00:00
abstract::With the increased popularity of contact sports and encouragement to participate at an early age, the role of the dental profession in relation to prevention of dental and other orofacial sporting injuries has become more important. Provision of professionally-fitted (custom) mouthguards for persons involved in contac...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.1989.tb03003.x
更新日期:1989-02-01 00:00:00
abstract::The National Study of Adult Oral Health (NSAOH) 2017-18 collected information from a sample of the Australian population aged 15 years and over. The Study comprised an interview questionnaire, completed by telephone or online, and an oral epidemiological examination among dentate participants. Participation in the Stu...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12759
更新日期:2020-06-01 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: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:Periodontal treatment may be a useful adjunct to medical management of diabetes; however, oral health has not been integrated into multidisciplinary diabetes care in Australia. This study aimed to understand the needs of patients and staff at a diabetes clinic to inform a prototype of integrated dental and d...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12804
更新日期:2020-11-06 00:00:00
abstract::In the past decade, the utility of cone beam computed tomography (CBCT) images in oral and maxillofacial surgery has seen continuous increase. However, CBCT images are not always able to replace other imaging modalities. Based on the current published knowledge, this paper discusses advantages and limitations of CBCT ...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.2011.01661.x
更新日期:2012-03-01 00:00:00
abstract::In some countries the use of amalgam has been restricted, and the dental profession may be forced into using alternatives to amalgam by a combination of public opinion and legislation, including the proposal that the material be 'phased-down'. The limited research that exists as to restorative decision-making is quant...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12212
更新日期:2014-12-01 00:00:00
abstract::Most research on dental erosion has focused on erosion in enamel. However, the increasing retention of teeth into old age has increased the potential for root surface erosion. The nature and kinetics of root surface erosion have not yet been adequately explored. The objective of this project was to develop an in vitro...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2001.tb00283.x
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:The aim of this study was to document the three main indicators of severe periodontal destruction and to evaluate factors associated with those indicators in an urban Indigenous population in Australia. METHODS:A cross-sectional survey of a convenience sample of Aboriginal adults from an Australian urban ar...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12138
更新日期:2014-03-01 00:00:00