Abstract：
:This study will introduce a new method for measuring the working time of elastomeric impression materials, taking into account the perceived shortcomings of existing systems for evaluating these times. The working times of various commercially available polysulfide, addition reaction silicones and polyethers were determined at room temperature (20 degrees C), following storage in a refrigerator (6 degrees C), and at mouth temperature (35 degrees C). At room temperature, the polysulfides demonstrated the longest working times and the silicones the shortest. Both the polysulfides and the silicones had longer working times following storage at 6 degrees C for 24 hours. However, the polyethers were found to be unusable at this temperature. All the impression materials had shorter working times when placed into the testing apparatus, which had been heated to mouth temperature.
journal_name
J Can Dent Assocjournal_title
Journal (Canadian Dental Association)authors
McConnell RJ,Johnson LN,Gratton DRsubject
Has Abstractpub_date
1994-01-01 00:00:00pages
49-50, 53-4issue
1eissn
0709-8936issn
1488-2159journal_volume
60pub_type
杂志文章abstract：:The history, methods, problems, errors, statistics and misidentification of disaster management in forensic dentistry are discussed. ...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：1990-07-01 00:00:00
abstract：:Chronic exposure to elevated ambient air levels of nitrous oxide during nitrous oxide/ oxygen (N2O/2) sedation can result in deleterious side effects to dentists and auxiliary staff. A sampling survey was done in the outpatient dental clinic at the Hospital for Sick Children to determine whether airborne nitrous oxide...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2007-09-01 00:00:00
abstract：:There exists a multitude of systemic diseases which exhibit consequential oral manifestations. Dermatologic disorders frequently involve intraoral and perioral tissues which dental practitioners should be familiar with. A compilation of disorders including; bullous diseases (such as Pemphigus Vulgaris, Erythema Multif...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章,评审
doi：
更新日期：1990-09-01 00:00:00
abstract：:Over the past 4 years, numerous cases of osteonecrosis of the jaw in patients treated with bisphosphonates have been reported. Since 1998, children and adolescents with osteogenesis imperfecta have received bisphosphonates to increase their bone density and reduce the incidence of bone fractures. The results have been...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2008-07-01 00:00:00
abstract：OBJECTIVE:To gain a better understanding of the extent to which rectangular collimation is being used in private practice and the barriers to adoption by practitioners. METHODS:Licensed dentists in private practice were asked to answer a survey composed of 17 multiple-choice questions and 1 open-ended question regardi...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2020-10-01 00:00:00
abstract：BACKGROUND:There is conflicting evidence regarding the association between vitamin D and periodontal disease. The purpose of this study was to explore that relation. METHODS:This cross-sectional study used data from the Canadian Health Measures Survey for respondents 13-79 years of age. Vitamin D status was determined...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2019-03-01 00:00:00
abstract：:As dentigerous cysts increase in size, the risk of postsurgical complications increases as well. Emphasis is usually placed on the risk of neurologic damage caused by trauma during and after surgical removal and of mandibular fracture resulting from the large residual bone defect. However, influence on the periodontal...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
abstract：:These consensus recommendations for the diagnosis and management of dentin hypersensitivity were developed by a broadly constituted board of dentists and dental hygienists drawn from general dental practice, specialist practice, academia and research from across Canada, joined by 2 international dentists with subject ...
journal_title：Journal (Canadian Dental Association)
pub_type： 共识发展会议,杂志文章,评审
doi：
更新日期：2003-04-01 00:00:00
abstract：:Squamous cell carcinoma (SCC) is the most prevalent malignant neoplasm of the oral cavity. The conventional tumour and several histologic subtypes of SCC present morphologic features and specific behaviour when they occur in the oral mucosa. For example, basaloid SCC is an aggressive tumour and verrucous carcinoma has...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章,评审
doi：
更新日期：2007-05-01 00:00:00
abstract：PURPOSE:The aim of this study was to evaluate the relationship between the width of 3 or 4 fingers of one hand and maximum mouth opening (MMO) in healthy subjects. METHODS:One hundred and forty dental students (age 21 to 42 years, mean 27.4 years) participated in the study. The ability of each subject to position 3 or...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2003-12-01 00:00:00
abstract：:Currently, part-time dental instructors do not receive formal training in education. According to the recent literature, some instructors may not be aware of all the options available to them in the clinic. It has been observed, for example, that instructors have demonstrated the greatest effectiveness while acting as...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：1998-05-01 00:00:00
abstract：:Some dental educational institutions in North America have incorporated community-oriented programs into their curriculum. The purpose of this study was to investigate the potential for the clinical placement of Ontario's dental and dental hygiene students in community-based settings. Key informant interviews were use...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:The antibacterial effects of chlorhexidine and sanguinarine on selected salivary microflora were evaluated in 15 healthy young adults. The experiment was performed in a cross-over manner enabling both mouthrinses and the saline control to be tested on all 15 subjects for periods of one week separated by three week int...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：1990-04-01 00:00:00
abstract：:The microflora associated with odontogenic infections are typically mixed and of indigenous origin. Streptococcus, peptostreptococcus, peptococcus, fusobacterium, bacteroides, and actinomyces species are the principle microflora isolated from these infections. Penicillin V (phenoxymethyl penicillin) remains the antimi...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章,评审
doi：
更新日期：1993-03-01 00:00:00
abstract：:The department of dentistry of the Hospital for Sick Children has actively maintained a quality assurance system since the early 1980s. In addition, members of the department have taught courses and published articles on risk management and quality assurance for over a decade. The decision to achieve ISO 9002 registra...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：1999-02-01 00:00:00
abstract：:Because of predisposing systemic disease, the frequent administration of medication, and the use of a complete denture, oral candidiasis is a common problem among older, chronically ill, institutionalized adults. This randomized clinical trial was designed to evaluate the effectiveness of an antifungal denture soaking...
journal_title：Journal (Canadian Dental Association)
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1995-03-01 00:00:00
abstract：OBJECTIVE:To document the profile of periodontists in private practice in Canada in terms of services provided and referral patterns. METHODS:An online survey consisted on 45 questions in 3 categories: demographics, referral patterns and periodontal procedures performed. The sampling frame consisted of all active memb...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2016-03-01 00:00:00
abstract：AIM:To estimate the quantity of dental amalgam that Ontario dentists release into waste water. METHODS:Information from a self-administered postal survey of Ontario dentists was combined with the results of other experiments on the weight of amalgam restorations and the quantity of amalgam waste that bypasses solids s...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2004-12-01 00:00:00
abstract：PURPOSE:In this 10-year longitudinal study we evaluated the amount of mandibular residual ridge resorption for 2 groups of subjects with complete dentures, one group with porcelain artificial teeth and the other with acrylic resin teeth. METHODS:One hundred and nine patients who had undergone ridge extension procedure...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2002-06-01 00:00:00
abstract：:A national sample of 1,775 Canadian dentists, representing 13.2 per cent of all Canadian dentists, were evaluated via a mailed questionnaire about their knowledge, awareness of, and experiences with victims of elder abuse and/or neglect. In all, 83.3 per cent of respondents were aware, to varying extents, of elder abu...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：:The aim of this study was to identify the parental factors associated with regular use of dental services by second year secondary school students in Quebec. Data were collected in 1996-97, as part of a provincial survey on the dental health of Quebec students. A stratified probabilistic sample of 1,351 students, repr...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2002-11-01 00:00:00
abstract：:Eighty patients who were culture-confirmed positive for recurrent herpes labialis were entered into a clinical trial. Sixty of these completed two episodes each in a randomized, double-blind, placebo-controlled clinical trial of 5 per cent acyclovir in a polyethylene glycol ointment base. The 5 per cent acyclovir oint...
journal_title：Journal (Canadian Dental Association)
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1989-02-01 00:00:00
abstract：:There have been many studies reporting on the prevalence of root surface caries in elderly populations, but there is little consistency in these reports concerning the associated risk factors. In the present study, intraoral examinations were carried out on adult patients (age range 22 to 91 years, mean age 57.9) on t...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：1991-06-01 00:00:00
abstract：:The ceramo-metallic crown has enjoyed increasing universal popularity as the full-coverage restoration of choice where long-term esthetics is desirable. The porcelain veneer is colour stable and relatively wear resistant. It has excellent compressive strength but poor tensile and shear strength, which unfortunately ca...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章,评审
doi：
更新日期：1990-11-01 00:00:00
abstract：:Dens evaginatus is a dental anomaly found predominantly in people of Mongoloid origin. Dentists practising in Western countries should also be aware of this condition because of the increasing migration of people from Asia. Supernumerary premolars are uncommon but may be found incidentally during radiographic examinat...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
abstract：:Osteopetrosis is one cause of osteosclerosis and may result in such serious oral complications as osteomyelitis and exposed necrotic bone. Dentists should be aware of patients with the disease because of its effect on osteoclast function, which results in impaired wound healing. The purpose of this paper is to review ...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章,评审
doi：
更新日期：2007-11-01 00:00:00
abstract：INTRODUCTION:People living in long-term care (LTC) facilities face many oral health challenges, often complicated by their medical conditions, use of medications and limited access to oral health care. OBJECTIVE:To determine Manitoba dentists' perspectives on the oral health of LTC residents and to identify the types ...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2019-09-01 00:00:00
abstract：:Dentistry and society have long recognized the benefits of using silver-based amalgams to restore and maintain the dental health of patients. However, recent studies by health and environment experts have shown that mercury is of great concern when it enters the biosphere as a contaminant. A rational approach to pollu...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2001-05-01 00:00:00
abstract：:Over the past several decades, latex hypersensitivity has become an increasingly common phenomenon in the dental setting. Exposure to latex via direct skin contact or inhalation of airborne allergens from powdered gloves poses the risk of sensitizing both clinicians and their patients. Adverse reactions to latex range...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章,评审
doi：
更新日期：2009-05-01 00:00:00
abstract：:Allergic contact stomatitis is a rare disorder that is unfamiliar to most clinicians. The vast majority of cases are associated with consumption of products containing cinnamaldehyde or cinnamon essential oil, which are used as flavourings because of their pleasant taste and sensation of freshness. We report here the ...
journal_title：Journal (Canadian Dental Association)
pub_type： 杂志文章
doi：
更新日期：2008-06-01 00:00:00
