Abstract:
:Decontamination of dental instruments has recently been the subject of considerable debate. However, little information is available on the potential bacterial colonisation of dental appliances returning from dental laboratories and their need for decontamination. This study investigated the extent and nature of microbial contamination of removable prosthodontic appliances produced at different dental laboratories and stored in two clinical teaching units (CTU 1 and CTU 2) of a dental hospital and school. Forty consecutive dental prosthodontic appliances that were being stored under varying conditions in the two clinical teaching units were selected for study; the appliances having been produced 'in-house' (hospital laboratory) or 'out-of-house' (external commercial laboratory). Two appliances, that were known to have undergone decontamination before storage, were used as controls. Swabs were taken according to a standard protocol and transferred to the microbiological laboratory with bacterial growth expressed as colony forming units (cfu) per cm(2). Microbial sampling yielded growth from 23 (58%) of the 40 appliances studied (CTU 1, n = 22; CTU 2, n = 18), with 38% of these having a high level of contamination (>42,000 cfu/cm(2)). The predominant bacteria isolated were Bacillus spp. (57%), pseudomonads (22%) and staphylococci (13%). Fungi of the genus Candida were detected in 38% of the samples. There was no significant difference in contamination of the appliances in relation to either their place of production or the CTU (p >0.05). However, the level of contamination was significantly higher (p = 0.035) for those appliances stored in plastic bag with fluid (n = 16) compared to those stored on models (n = 19). No growth was recovered from the two appliances that had undergone decontamination before storage. The research showed that appliances received from laboratories are often contaminated and therefore there is a need for routine disinfection of such items before use and a review of storage conditions required.
journal_name
Br Dent Jjournal_title
British dental journalauthors
Williams DW,Chamary N,Lewis MA,Milward PJ,McAndrew Rdoi
10.1038/sj.bdj.2011.675subject
Has Abstractpub_date
2011-08-26 00:00:00pages
163-6issue
4eissn
0007-0610issn
1476-5373pii
sj.bdj.2011.675journal_volume
211pub_type
杂志文章abstract::This paper outlines the development of the training of orthodontic therapists in the UK, the experiences of the first cohort to pass through the Bristol course, the roles and responsibilities of the therapist and possible issues with future orthodontic manpower planning. ...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.2009.766
更新日期:2009-09-12 00:00:00
abstract::Are dental students well-equipped to deal with difficult communication situations? ...
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pub_type: 评论,杂志文章
doi:10.1038/sj.bdj.2018.101
更新日期:2018-02-09 00:00:00
abstract::Ninety-eight cigarette smokers attending the Newcastle upon Tyne Dental Hospital, wishing to reduce their tobacco consumption, received smoking reduction advice in combination with dental health instruction and periodontal care. Those advised against smoking showed a greater reduction (P < 0.001) in reported cigarette...
journal_title:British dental journal
pub_type: 临床试验,杂志文章
doi:10.1038/sj.bdj.4809067
更新日期:1996-04-20 00:00:00
abstract:INTRODUCTION:This paper reports participation of dentists in continuing professional development (CPD) and factors affecting participation. METHOD:All general dental practitioners (GDPs) in three deaneries in England were surveyed. The overall response rate was 54% (n = 2082); by deanery it was 68% West Midlands, 45% ...
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pub_type: 杂志文章
doi:10.1038/sj.bdj.4802413
更新日期:2003-01-11 00:00:00
abstract::This paper reviews recent advances and current trends in dental radiology. Developments in the design of dental x-ray equipment which improve both radiation hygiene and image quality are described. Also discussed are new features which broaden the scope of intra-oral and panoramic radiological diagnosis in the general...
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pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.4809765
更新日期:1998-08-22 00:00:00
abstract::Dental disease in the form of caries and abscesses has been known since antiquity. Before the advent of anaesthesia, operations upon the mouth were painful. The introduction of general anaesthesia in the form of ether and chloroform seemed to provide a solution, but there was an unacceptable level of mortality. James ...
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pub_type: 传,历史文章,杂志文章
doi:10.1038/sj.bdj.2016.179
更新日期:2016-03-11 00:00:00
abstract::Introduction Prescribing checklists are a means of managing risk related to systemic medications in oral medicine practice.Methods Checklists for workup and monitoring for azathioprine, mycophenolate mofetil (MMF) and dapsone were introduced to an oral medicine clinic. Compliance with the checklists was audited at six...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.2017.887
更新日期:2017-12-01 00:00:00
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pub_type: 杂志文章,多中心研究
doi:10.1038/sj.bdj.2014.1165
更新日期:2015-01-01 00:00:00
abstract::Aim To identify distinct characteristics of unexplained orofacial pain that could be used by dental practitioners in making an early diagnosis.Methods Subjects reporting orofacial pain in a postal questionnaire-based cross-sectional survey were invited for clinical examination. The interviewer was blinded to the quest...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.2008.585
更新日期:2008-08-09 00:00:00
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pub_type: 杂志文章
doi:10.1038/sj.bdj.4809414
更新日期:1997-06-28 00:00:00
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pub_type: 杂志文章
doi:10.1038/sj.bdj.2016.645
更新日期:2016-09-09 00:00:00
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doi:10.1038/sj.bdj.4801156a
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journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/bdj.2007.1204
更新日期:2008-01-12 00:00:00
abstract::A very rare case is presented of multiple idiopathic internal resorption, which progressively involved all the mandibular incisor teeth. ...
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pub_type: 杂志文章
doi:10.1038/sj.bdj.4806707
更新日期:1989-01-21 00:00:00
abstract::There are certain advantages to restoring a complete arch simultaneously, however, attempting to do this requires that the dentist maintains control during all stages of treatment. Maintaining control alleviates the preassure of time, which in turn allows for precision to be obtained at all clinical and laboratory sta...
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pub_type: 杂志文章
doi:10.1038/bdj.2008.3
更新日期:2008-01-26 00:00:00
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doi:10.1038/sj.bdj.4807371
更新日期:1990-11-24 00:00:00
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pub_type: 杂志文章
doi:10.1038/bdj.2007.580
更新日期:2007-08-25 00:00:00
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pub_type: 杂志文章
doi:10.1038/sj.bdj.4807030
更新日期:1989-11-25 00:00:00
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pub_type: 杂志文章,随机对照试验
doi:10.1038/sj.bdj.2013.742
更新日期:2013-08-01 00:00:00
abstract::The 1998 Adult Dental Health Survey, published this year, showed that the number of people without teeth should fall over the next three decades, to only 4% of the UK population. Patterns of tooth loss and retention are also changing. This article, the first of a series on the interpretation of the Adult Dental Health...
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pub_type: 杂志文章
doi:10.1038/sj.bdj.4800840
更新日期:2000-12-09 00:00:00
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journal_title:British dental journal
pub_type: 杂志文章,评审
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更新日期:2009-01-10 00:00:00
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pub_type: 杂志文章
doi:10.1038/sj.bdj.4807546
更新日期:1991-05-11 00:00:00
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.4809093
更新日期:1996-05-25 00:00:00
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journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/bdj.2007.229
更新日期:2007-06-09 00:00:00
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journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.4808595
更新日期:1994-11-05 00:00:00
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journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4800398
更新日期:2000-01-22 00:00:00
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journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.4800750
更新日期:2000-09-23 00:00:00
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journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4810526
更新日期:2003-09-27 00:00:00
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journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4808084
更新日期:1993-02-06 00:00:00