Abstract:
BACKGROUND:Calcium hydroxide is a common endodontic medicament and has an antimicrobial effect by increasing the localized pH within the root canal. However, Enterococcus faecalis has shown some resistance to calcium hydroxide. METHODS:A flow cell apparatus was used to grow an E. faecalis biofilm on dentine discs. Following 4 weeks growth in Todd Hewitt Broth, flow cells were exposed to either a rapid or slow increase to pH 11.5 or 12.5. Cellular viability was determined using serial plating and the number of colony-forming units was normalized against the cellular protein content. Scanning electron microscopy was carried out to qualitatively observe the effects of the different rates of pH increase. RESULTS:A significant difference in viability between the pH rapid and slow groups was not shown in this study. Compared with pH 11.5 solutions, pH 12.5 solutions were more effective at killing bacteria although some E. faecalis still survived. CONCLUSIONS:Enterococcus faecalis did not adapt and develop a greater resistance to high pH following a slow rise in pH compared with a rapid rise in pH. As expected, pH 12.5 was more effective in reducing bacterial numbers compared with pH 11.5 although E. faecalis was not completely eliminated.
journal_name
Aust Dent Jjournal_title
Australian dental journalauthors
Stenhouse M,Zilm P,Ratnayake J,Cathro Pdoi
10.1111/adj.12582subject
Has Abstractpub_date
2018-06-01 00:00:00pages
224-230issue
2eissn
0045-0421issn
1834-7819journal_volume
63pub_type
杂志文章abstract:BACKGROUND:Periodontal infection may induce systemic vascular/endothelial dysfunction signifying a potential link between hypertension and periodontitis. METHODS:A convenience sample of 204 adults attending a university teaching hospital without (C: control) or with essential hypertension [EH; n = 102, duration (mean ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12784
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Dental problems presenting to general hospital emergency departments (GHEDs) may create difficulties as there may not be appropriate facilities or personnel to manage them. The incidence and demographics of dental presentations to GHEDs in Tasmania are currently unexamined. This knowledge may be relevant in ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12202
更新日期:2014-09-01 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::Apicoectomy is a frequently performed operation. In order to produce consistently good results the operation and its varieties are described, with stress being placed on correct assessment of each case prior to surgery. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1975.tb05048.x
更新日期:1975-08-01 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:BACKGROUND:Dentine hypersensitivity (DH) occurs on exposed dentine and is dependent on the patency of dentinal tubules. This study compared the effectiveness of red propolis extract (RPE), calcium sodium phosphosilicate (Novamin) and arginine-calcium carbonate (ACC) in occluding dentine tubules. METHODS:Eighty dentine...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12275
更新日期:2015-03-01 00:00:00
abstract::An electronic method of recording displacement was used to study mandibular movement during mastication. The technique enables the parameters of muscle activity, the sound of tooth contact, the force developed between opposing teeth, and the displacement of the mandible to be recorded at the same time on a single U/V ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1976.tb04413.x
更新日期:1976-02-01 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::A recent study investigated attitudes of selected Australian and British dental academics to aspects of educational management. This paper reviews that study and comments upon significant differences which were detected between the national samples. Analysis was by sub-programme CROSSTABS of the Statistical Package fo...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1982.tb04061.x
更新日期:1982-04-01 00:00:00
abstract::Glass ionomer (polyalkenoate) cements have proved to be superior to zinc phosphate cements as orthodontic luting agents. Setting behaviours at different temperatures were recorded by an oscillating rheometer under controlled conditions. The working time of these cements can be increased by mixing on a chilled glass sl...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1991.tb04711.x
更新日期:1991-06-01 00:00:00
abstract::In order to justify the time and expense involved in complex restorative treatment there is an expectation of a favourable result and long-term success. Longevity in fixed prosthodontics is not only dependent upon the precision and skill with which the work is carried out, but also to a large degree upon a proper asse...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.1994.tb03083.x
更新日期:1994-06-01 00:00:00
abstract::Mandibular and maxillary third molars are mostly consigned to 'waste bins' in dental practices because they are terminal in developmental timing and positioning in the dental arches, and regarded as functionally non-essential. Thus, many dental practitioners do not attach significance to the presence of third molars w...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.1999.tb00225.x
更新日期:1999-12-01 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::In this study, enamel surface roughness was investigated following the use of various combinations of bonding agents, burrs and polishing procedures. Orthodontic brackets were bonded to 135 premolar teeth extracted from adolescents. Subsequent to debonding and finishing, the enamel surface was gold coated and examined...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1990.tb05402.x
更新日期:1990-06-01 00:00:00
abstract::There was a 70 per cent response to a mail questionnaire to a 1:3 sample of Australian Dental Association members in private practices (n = 1931). Computers were used by 37 per cent of practices. Main computer applications used were for: accounting (84%); patient billing (80%); word processing (79%); and patient recal...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1993.tb03062.x
更新日期:1993-06-01 00:00:00
abstract::The delivery of effective information flow through self learning, critical thinking and problem solving is one of the objectives of current curriculum development within the Dental Faculty of the University of Hong Kong. These objectives reflect a desire to encourage skills related to 'comprehension learning' and 'mea...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1992.tb00828.x
更新日期:1992-02-01 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:BACKGROUND:This study compared the effects of three flavonoids, including proanthocyanidin, naringin and quercetin on remineralization of artificial root caries. METHODS:Demineralized root fragments (n = 75) were randomly divided into five groups for treatment with the remineralizing agents for 10 minutes: (1) 6.5% pr...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12367
更新日期:2016-06-01 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: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::The overlay denture concept may be used to postpone and in some cases avoid the atrophied mandibular ridge syndrome. The co-operation of the patient is a vital factor for success and the treatment regimen is divided into a series of self-contained stages to allow the patient to demonstrate his mastery of each before p...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1978.tb03534.x
更新日期:1978-08-01 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: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
abstract:BACKGROUND:Surgical extraction of third molars is one of the most common oral and maxillofacial surgical procedures performed and may have a number of associated complications. One of these complications is inferior alveolar nerve (IAN) dysaesthesia or impairment of sensory perception (including paraesthesia and/or ana...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2006.tb00403.x
更新日期:2006-03-01 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:BACKGROUND:There is limited literature regarding dental prescribing preferences for medicines other than antibiotics. This study aimed to describe the prescribing trends of dispensed prescription medicines by dentists in Australia from 2013 and 2016 and assess adherence to current guidelines. METHODS:Data were accesse...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12613
更新日期:2018-04-19 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::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::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::Neurilemmomas of the peripheral segment of the hypoglossal nerve are extremely uncommon neoplasms. A rare case of hypoglossal neurilemmoma located in the sublingual space is reported and the differential diagnosis of sublingual mass lesions is discussed. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1998.tb00179.x
更新日期:1998-10-01 00:00:00