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Article: A laboratory evaluation of two brands of disposable air turbine handpiece

TitleA laboratory evaluation of two brands of disposable air turbine handpiece
Authors
Issue Date1997
PublisherNature Publishing Group. The Journal's web site is located at http://www.bdj.co.uk
Citation
British Dental Journal, 1997, v. 182 n. 1, p. 15-21 How to Cite?
AbstractObjective: To report on the essential performance characteristics of two brands of disposable air turbine handpiece and on aspects of their safety and convenience for clinical use. Materials and methods: Oralsafe and Feathertouch disposable handpieces were characterised using a variety of techniques in respect of the following: turbine rotor radius, equivalent orifice radius, stall torque coefficient, pressure effectiveness, power index, efficiency index, sound level and instrument retention force. Results: Free-running speed versus pressure curves for many of the disposable handpieces showed marked deviations from the expected smooth form. Considerable variation between examples of each type was found in most measured values. Evidence of eccentric rotors and high bearing friction was not found. Conclusions: Both brands of disposable handpiece had a number of problems: poor performance, vibration, excessive noise, variability of behaviour, poor bearings. Use of these devices is difficult to recommend. Improvement in design seems necessary.
Persistent Identifierhttp://hdl.handle.net/10722/65974
ISSN
2014 Impact Factor: 1.082
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorDyson, JEen_HK
dc.contributor.authorDarvell, BWen_HK
dc.date.accessioned2010-09-06T05:42:33Z-
dc.date.available2010-09-06T05:42:33Z-
dc.date.issued1997en_HK
dc.identifier.citationBritish Dental Journal, 1997, v. 182 n. 1, p. 15-21en_HK
dc.identifier.issn0007-0610en_HK
dc.identifier.urihttp://hdl.handle.net/10722/65974-
dc.description.abstractObjective: To report on the essential performance characteristics of two brands of disposable air turbine handpiece and on aspects of their safety and convenience for clinical use. Materials and methods: Oralsafe and Feathertouch disposable handpieces were characterised using a variety of techniques in respect of the following: turbine rotor radius, equivalent orifice radius, stall torque coefficient, pressure effectiveness, power index, efficiency index, sound level and instrument retention force. Results: Free-running speed versus pressure curves for many of the disposable handpieces showed marked deviations from the expected smooth form. Considerable variation between examples of each type was found in most measured values. Evidence of eccentric rotors and high bearing friction was not found. Conclusions: Both brands of disposable handpiece had a number of problems: poor performance, vibration, excessive noise, variability of behaviour, poor bearings. Use of these devices is difficult to recommend. Improvement in design seems necessary.en_HK
dc.languageengen_HK
dc.publisherNature Publishing Group. The Journal's web site is located at http://www.bdj.co.uken_HK
dc.relation.ispartofBritish Dental Journalen_HK
dc.subject.meshAir Pressureen_HK
dc.subject.meshDental High-Speed Equipmenten_HK
dc.subject.meshDisposable Equipmenten_HK
dc.subject.meshEfficiencyen_HK
dc.subject.meshElectric Power Suppliesen_HK
dc.subject.meshEquipment Designen_HK
dc.subject.meshEvaluation Studies as Topicen_HK
dc.subject.meshPlasticsen_HK
dc.subject.meshRotationen_HK
dc.subject.meshTorqueen_HK
dc.subject.meshVibrationen_HK
dc.titleA laboratory evaluation of two brands of disposable air turbine handpieceen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0007-0610&volume=182&issue=1&spage=15&epage=21&date=1997&atitle=A+laboratory+evaluation+of+two+brands+of+disposable+air+turbine+handpieceen_HK
dc.identifier.emailDyson, JE: jdyson@hkucc.hku.hken_HK
dc.identifier.emailDarvell, BW: b.w.darvell@hku.hken_HK
dc.identifier.authorityDyson, JE=rp00003en_HK
dc.identifier.authorityDarvell, BW=rp00007en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid9029807-
dc.identifier.scopuseid_2-s2.0-0031564376en_HK
dc.identifier.hkuros22605en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0031564376&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume182en_HK
dc.identifier.issue1en_HK
dc.identifier.spage15en_HK
dc.identifier.epage21en_HK
dc.identifier.isiWOS:A1997WF67500015-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridDyson, JE=23089868600en_HK
dc.identifier.scopusauthoridDarvell, BW=7005953926en_HK

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