Abstract：
:The clinical durability of restorations made using water-based materials depends upon the type of material used. Current specification tests cannot predict durability, possibly because these are carried out on samples matured for 24 hours whereas longer maturation times may be more relevant. The lactic acid jet test was selected as a test method, being believed capable of ranking materials in the same order of erosion resistance in vitro as found in vivo. The powder/liquid interaction (glass or zinc oxide with polymeric or phosphoric acid) was investigated by selecting glass-ionomer, zinc polycarboxylate, silicate and zinc phosphate cements, with emphasis placed on glass ionomers. Two test times, 24 hours and 2 months, were chosen, with eight samples for each material tested at each time. All glass ionomers showed a significant reduction in erosion rate with time; two zinc polycarboxylates also showed some reduction but not to a significant degree. The silicate and zinc phosphate cements increased in erosion rate but not significantly. It was concluded that materials using polymeric acids had erosion rates which reduced with time, significantly so for glass ionomers. This might explain their longevity over silicate cements.
journal_name
Br Dent Jjournal_title
British dental journalauthors
Williams JA,Billington RW,Pearson GJdoi
10.1038/sj.bdj.4808049subject
Has Abstractpub_date
1992-12-05 00:00:00pages
340-2issue
10eissn
0007-0610issn
1476-5373journal_volume
173pub_type
杂志文章abstract：:Tuberculosis (TB) is a preventable and curable infection, but remains a significant cause of death. The dental team is likely to encounter patients with a history of TB, however, at present there is limited guidance available to inform the provision of oral healthcare for this patient group. This may lead to confusion...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.2018.430
更新日期：2018-06-22 00:00:00
abstract：OBJECTIVE:To investigate the outcome of non-restoration of carious deciduous teeth by means of a retrospective analysis of clinical case notes of children regularly attending two general dental practices and receiving preventive care. DESIGN:Using a carefully defined protocol the fate of deciduous teeth diagnosed as c...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4801495
更新日期：2002-07-27 00:00:00
abstract：:Continuing professional development should embrace all aspects of our professional life. Changes in the pattern of oral disease, developing concepts of specialisation and delivery of dental care require a flexible approach to the interface between the end of the undergraduate dental course and the early years of gener...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4809004
更新日期：1996-02-24 00:00:00
abstract：:Enamel hypomineralisation is a qualitative defect, with reduced mineralisation resulting in discoloured enamel in a tooth of normal shape and size. Because the enamel is weaker, teeth can undergo post eruptive breakdown, resulting in missing enamel. Enamel hypoplasia is a quantitative defect of the enamel presenting a...
journal_title：British dental journal
pub_type： 杂志文章,评审
doi：10.1038/s41415-019-0782-9
更新日期：2019-10-01 00:00:00
abstract：AIM:To ascertain general dental practitioners' views on the use of stainless steel (pre-formed metal) crowns to restore carious primary molars. METHOD:Ninety-three general dental practitioners were selected at random from those practising in Lancashire, Cheshire and Greater Manchester in 2003 and interviewed separatel...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4812746
更新日期：2005-10-08 00:00:00
abstract：:A questionnaire was sent to a list of what was considered to be all dentists currently in practice in the General Dental Service (GDS) and Community Dental Service (CDS) in Scotland; 72% responded. The dentists were asked to indicate the general method by which they would prefer to be paid, given a choice of fee for i...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4806883
更新日期：1989-06-24 00:00:00
abstract：:The issue of standards of competence and assessment is central to professions. For the dental profession there have been suggestions that a change from overall competence to specific fields of competence would be a more suitable mechanism to assess whether an individual was competent. This paper examines the implicati...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4809751
更新日期：1998-08-08 00:00:00
abstract：INTRODUCTION:Locator retained implant overdentures are associated with a high incidence of prosthodontic complications. This study investigated whether general dental practitioners (GDPs) were willing to maintain these prostheses in primary dental care. METHOD:A questionnaire was distributed to all GDPs referring pati...
journal_title：British dental journal
pub_type： 评论,杂志文章
doi：10.1038/sj.bdj.2014.79
更新日期：2014-02-01 00:00:00
abstract：:Five hundred pairs of dental panoramic tomographs (DPT) and maxillary anterior occlusal radiographs (AO) from patients referred to the orthodontic department of a dental teaching hospital were examined to assess the diagnostic yield from a panoramic radiograph of the premaxillary region alone and then assess the addit...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4808931
更新日期：1995-11-25 00:00:00
abstract：:In 1998, research on 'What the general public wants from the general dental service' was carried out by the Centre for Dental Services Studies (CDSS) at the University of York and was commissioned by the British Dental Association (BDA). The research culminated in the report: 'User Priorities for General Dental Servic...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4800588
更新日期：2000-07-08 00:00:00
abstract：OBJECTIVES:To determine the range and frequency of diagnoses in specimens submitted for histopathological examination by general dental practitioners (GDPs). METHODS:A retrospective analysis was carried out of all cases submitted by GDPs for the period 1974-2003, using a Foxpro Windows database. The data were collated...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4813464
更新日期：2006-04-22 00:00:00
abstract：:Does this tool offer a robust method for seeking out evidence or merely gives credence to quackery? ...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.2017.312
更新日期：2017-04-07 00:00:00
abstract：:The aim of the study was to determine current and future use of micro-computers in general dental practice. A piloted questionnaire was sent to 736 general dental practitioners in Scotland, with the intention of contacting one principal from every dental practice known to the Scottish Dental Estimates Board. A total o...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4806793
更新日期：1989-04-08 00:00:00
abstract：:Dens invaginatus is a developmental malformation, in which there is an infolding of enamel into dentine. These infolds represent stagnation sites for bacteria and can predispose to dental caries. The carious infection can spread via enamel and dentine to contaminate the pulp and cause soft tissue necrosis. The altered...
journal_title：British dental journal
pub_type： 杂志文章,评审
doi：10.1038/sj.bdj.2016.724
更新日期：2016-10-07 00:00:00
abstract：:Oral cancer has a good prognosis when detected at an early stage yet half of patients diagnosed with oral cancer in the UK have advanced stage disease, for which prognosis is poor. Although most oral tumours are preceded by pre-malignant lesions, the asymptomatic nature of oral cancer, diagnostic delay, and the possib...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.2010.345
更新日期：2010-04-24 00:00:00
abstract：:Partly as a consequence of the inquiries into the events at the Bristol Royal Infirmary and the Royal Liverpool Children's Hospital (Alder Hey), the Government recently enacted the Human Tissue Act 2004. The main provisions of the Act came into force on 1 September 2006 and have potential implications for dentists. ...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4814378
更新日期：2006-12-23 00:00:00
abstract：:To determine the pattern of antibiotic prescribing (source and type) for acute dental conditions in the emergency setting, a prospective cross-sectional study was undertaken of 500 consecutive new patients attending the examination and emergency clinic of the Cardiff Dental Hospital in May 1994. The source and type of...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4809276
更新日期：1996-12-07 00:00:00
abstract：OBJECTIVE:To evaluate shortened courses of antibiotics in the management of dentoalveolar abscesses. DESIGN:Prospective clinical study over a 3-year period. SETTING:Examinations department of the Liverpool University Dental Hospital. SUBJECTS:759 patients, with acute dentoalveolar abscesses associated with swelling,...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4809444
更新日期：1997-08-23 00:00:00
abstract：AIM:To evaluate a simulation laboratory course that used student-centred small-group problem-orientated discussion activities as the main medium of instruction. METHODS:A structured questionnaire using a six-point Likert scale with 30 statements relating to a fixed prosthodontics course was distributed to 4th-year and...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4801253
更新日期：2001-12-08 00:00:00
abstract：OBJECTIVES:The objectives of this study were to determine on what evidence infective endocarditis (IE) could be legally linked to dental treatment. METHOD:The records of 319 legal cases involving dental treatment as the probable cause of IE were analysed. The medical history, type of dental operation, and whether anti...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/bdj.2007.123
更新日期：2007-07-14 00:00:00
abstract：:'Active Learning' is a frequently encountered term much in vogue in educational circles and widely considered in many current textbooks and papers. It is, however, a most difficult term to define. This paper seeks firstly to explore and discuss the meaning of the term with special relation to undergraduate dental educ...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4808275
更新日期：1993-09-25 00:00:00
abstract：OBJECTIVES:To evaluate patient compliance with toothbrushing instructions using a data logger and a brushing diary. METHODS:Dental patients were provided with powered toothbrushes modified to carry electronic data loggers. Demonstration of the most effective way to use the toothbrush was provided with instructions to ...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4811954
更新日期：2005-01-08 00:00:00
abstract：:The restoration of endodontically treated teeth has undergone significant changes in the last 20 years. Most of these changes are associated with the preservation of tooth structure, this has been achieved first of all with the increasing use of operative microscopes, nickel titanium instruments and more recently cone...
journal_title：British dental journal
pub_type： 杂志文章,评审
doi：10.1038/sj.bdj.2014.198
更新日期：2014-03-01 00:00:00
abstract：:The principal aim of this study was to assess the feasibility of conducting a systematic examination of the oral mucosa, as an integral part of the routine dental check-up and in conditions comparable with those in NHS dental practice. A total of 1949 individuals, who were already registered as patients with an indust...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4808894
更新日期：1995-10-07 00:00:00
abstract：:A theoretical model was proposed and tested to evaluate some of the factors involved in patients' decisions to undergo extensive restorative dental treatment. This model incorporates aspects of the environment within which the decision occurred (the patient/provider relationship, social influence and the role of cues ...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4808807
更新日期：1995-07-08 00:00:00
abstract：:This final article in the series consider the practical realities of marketing. A series of questions are provided to provide an ongoing marketing 'health check' along with a list of initial ideas to get you started. ...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4809226
更新日期：1996-10-05 00:00:00
abstract：AIM:The primary aim was to evaluate the effect of ethnicity, social deprivation and oral health on oral self perceptions of 14-15-year-old Asians and Whites. A secondary aim was to assess the influence of ethnicity and social deprivation on oral treatment need in the same sample. DESIGN:A cross-sectional epidemiologic...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4809813
更新日期：1998-10-10 00:00:00
abstract：BACKGROUND:The United Kingdom and its national healthcare system represent a unique comparison for many other developed countries (such as Australia and France), as the practice of prophylactic removal of third molars in the United Kingdom has been discouraged for nearly two decades, with clear guidelines issued by the...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.2014.251
更新日期：2014-04-01 00:00:00
abstract：:The behavioural science course for the undergraduate dental curriculum at Liverpool university Dental School is designed to be integrated into the basic science and clinical teaching. The course is taught by a clinical psychologist and social anthropologist. The course has an input to each of the 5 years of the studen...
journal_title：British dental journal
pub_type： 杂志文章
doi：10.1038/sj.bdj.4808904
更新日期：1995-10-21 00:00:00
abstract：:The field of salivary diagnostics to allow risk determination for periodontal diseases is advancing. New technologies in proteomics, genomics and nanotechnologies have continued the discovery of discriminatory periodontal disease biomarkers. This review briefly overviews biomarker studies that have been completed in s...
journal_title：British dental journal
pub_type： 杂志文章,评审
doi：10.1038/sj.bdj.2014.1005
更新日期：2014-11-01 00:00:00
