Abstract:
BACKGROUND:Candida biofilm is a major cause of denture stomatitis. We aimed to compare the efficacy of low-molecular-weight chitosan solutions against Candida albicans biofilm on polymethyl methacrylate (PMMA) resin. METHODS:Various types of chitosan were tested for anti-Candida activity by broth dilution. Two types were selected for further testing on 24-hour C.albicans biofilm formed on PMMA specimens. Specimens were randomly distributed among experimental groups, including 0.1% and 0.2% acetic acid, 3 and 6 mg/ml of oligomer chitosan and 30 kDa chitosan solutions, effervescent tablet (Polident), and 0.2% chlorhexidine, and immersed for 5 min to 12 h. The viability of C. albicans after cleansing were determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays. Remaining viability was calculated into percentage relative to respective controls and analyzed using ANOVA with Tukey post-hoc tests. Live/dead fluorescence microscopy was also performed. RESULTS:Chitosan solutions had high efficacy against C. albicans biofilm on PMMA. The mean relative viability compared to control after 12-h immersion was 6.60±4.75% and 12.72±6.96% for 3 and 6 mg/ml oligomer, respectively, and 11.68±4.81% and 18.08±6.20% for 3 and 6 mg/ml 30 kDa chitosan, respectively. CONCLUSIONS:Low-molecular-weight chitosan solution is an effective antifungal denture cleanser that can significantly reduce C.albicans viability in biofilm on PMMA.
journal_name
Aust Dent Jjournal_title
Australian dental journalauthors
Srimaneepong V,Thanamee T,Wattanasirmkit K,Muangsawat S,Matangkasombut Odoi
10.1111/adj.12826subject
Has Abstractpub_date
2021-01-23 00:00:00eissn
0045-0421issn
1834-7819pub_type
杂志文章abstract::The history of denture base materials and the accompanying development of impression techniques are traced from the earliest times to the present day (Part 1) as a prelude to a study (Part 2-4) of the various theories that have been advanced to explain retention of the base without mechanical support. These theories a...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.1993.tb04760.x
更新日期:1993-12-01 00:00:00
abstract::Dental patients are often aware that radiation has the potential to harm them but they do not usually understand how or why and what potential harmful effects may arise from dental radiographs. The potential for undesirable effects must be balanced against the benefits obtained from radiographs. Dentists should addres...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2000.tb00559.x
更新日期:2000-09-01 00:00:00
abstract:BACKGROUND:Workforce development is acritical factor allowing delivery on government health priorities. Against a backdrop of increasingdemand for dental therapists being significantly higher than the levels of recruitment, it is widely acknowledged that rural and remote areas (having greater recruitment and retention ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2007.tb00461.x
更新日期:2007-03-01 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::Three series of standard tensile test specimens were produced using the nickel-base Ticonium Premium 100 alloy cast into a gypsum-bonded investment. For the first series an average weight metal ingot was used and cast at the temperature determined by the sensing head of the casting machine. For the second series a la...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1976.tb02845.x
更新日期:1976-04-01 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::Two sizes of tensile test specimens were produced, the smaller of them by several techniques each incorporating a particular casting variable. All castings were subsequently subjected to radiographic evaluation and mechanical testing. An attempt has been made to relate the application of each variable to the degree of...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1978.tb05180.x
更新日期:1978-06-01 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:BACKGROUND:The aim of this study was to evaluate the dentinal tubule occluding ability of tricalcium silicate (Ca(3) SiO(5) or C(3) S) in vitro. METHODS:Dentine discs were prepared from extracted caries-free human third molars and etched with 0.02 M citric acid (pH 4) for 3 minutes in order to produce patent dentinal ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2011.01321.x
更新日期:2011-06-01 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:Previous studies by the authors have looked at the nature of the fissure system of human permanent molars and premolars, and has provided evidence for the presence of a prismless layer of enamel. It was noted during these studies that the fissure spaces were often occupied by material other than the fissure ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2003.tb00028.x
更新日期:2003-09-01 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::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::Patients often present with intraoral pathology in the general dental practice setting. Therefore, it is important that dental practitioners are aware of how to deal with pathology when this occurs and have an understanding of investigative techniques that might assist in making a diagnosis. Biopsy and subsequent hist...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2010.01194.x
更新日期:2010-06-01 00:00:00
abstract::With many composite resins operators may notice a change in colour after light curing the restoration. Three types of specimen--a disc, a simulated Class III and a veneer--were made using a series of composite resins. Generally, resins became lighter or more translucent on irradiation. This was not only true for a ran...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1989.tb04625.x
更新日期:1989-04-01 00:00:00
abstract::The patient in this report is a young boy with hypohydrotic ectodermal dysplasia. His case is exceptional in that anodontia was complete in both deciduous and permanent dentitions. A brief review of this condition is presented along with the prosthetic management of the case which emphasizes the need for regular modif...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1990.tb05873.x
更新日期:1990-04-01 00:00:00
abstract:BACKGROUND:A Caries Management Clinic was established for patients at high risk of caries aiming to reduce caries incidence to close to zero. That is, to prevent new lesions on existing sound surfaces, along the susceptible restoration margins, and to remineralize existing cavitated and non-cavitated lesions. Twenty pa...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2008.00076.x
更新日期:2008-12-01 00:00:00
abstract::A brain abscess that originates from an odontogenic infection, although rare, can at times be difficult to diagnose, especially in the context of pain and trismus. We report a rare case of odontogenic infection as a result of an infected maxillary third molar, causing an infratemporal and temporalis collection, result...
journal_title:Australian dental journal
pub_type:
doi:10.1111/adj.12266
更新日期:2015-12-01 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 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::This article is a review of the recent literature pertaining to the oral sequelae of eating disorders (EDs). Dentists are recognized as being some of the first health care professionals to whom a previously undiagnosed eating disorder patient (EDP) may present. However, despite the prevalence (up to 4 per cent) of suc...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.2005.tb00079.x
更新日期:2005-03-01 00:00:00
abstract::A prospective study was undertaken in a dental teaching hospital to compare the clinical performance of cantilever resin-bonded bridges with a fixed-fixed design for the replacement of a maxillary permanent incisor. A total of 25 anterior resin-bonded bridges was placed in 24 patients. The prostheses were evaluated ov...
journal_title:Australian dental journal
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1834-7819.2000.tb00239.x
更新日期:2000-03-01 00:00:00
abstract::This review illustrates, through a series of case histories, how oral medicine insights aid the diagnosis and management of patients with excessive tooth wear. The cases reviewed are drawn from the records of 500 southeast Queensland patients referred to the author over a 12 year period. Patients most at risk of denta...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/j.1834-7819.2001.tb00288.x
更新日期:2001-12-01 00:00:00
abstract::Malposed mandibular and maxillary premolars and canines often cause great difficulties in removal. The ways in which these procedures are accomplished are described in detail. ...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1975.tb04356.x
更新日期:1975-06-01 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:BACKGROUND:To report the dental caries experience of preschool children within the north Brisbane region and to investigate the association between selected social and demographic variables and disease presence. METHODS:A cross-sectional sample of 2515 children aged four to six years was examined in a preschool settin...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.2002.tb00547.x
更新日期:2002-12-01 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:BACKGROUND:This study aimed to fabricate a denture base resin (DBR) containing phytoncide microcapsules (PTMCs) and determine the mechanical properties of the resin and antifungal activity. METHODS:Fifty-four heat-cured rectangular DBR specimens (64 × 10 × 3.3 ± 0.2 mm) containing nine concentrations of PTMC between 0...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/adj.12640
更新日期:2018-06-20 00:00:00
abstract::Various methods, with a variety of materials, exist for restoring carious primary teeth. Successful restoration of primary teeth is dependent on accurate diagnosis, knowledge of the caries process, knowledge of dental materials, and treatment choice. The purpose of this evidence-based review is to present evidence tha...
journal_title:Australian dental journal
pub_type: 杂志文章,评审
doi:10.1111/adj.12682
更新日期:2019-06-01 00:00:00
abstract::This paper presents some information, derived by questionnaire, on the social characteristics and background of 1148 first-year dental students at the University of Sydney for the years 1976-1985. Student entry age was 19.4 years; 27 per cent were female; 36 per cent of fathers and 24 per cent of mothers were professi...
journal_title:Australian dental journal
pub_type: 杂志文章
doi:10.1111/j.1834-7819.1992.tb00764.x
更新日期:1992-10-01 00:00:00