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Article: A laboratory evaluation of two brands of disposable air turbine handpiece
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TitleA laboratory evaluation of two brands of disposable air turbine handpiece
 
AuthorsDyson, JE1
Darvell, BW1
 
Issue Date1997
 
PublisherNature Publishing Group. The Journal's web site is located at http://www.bdj.co.uk
 
CitationBritish 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.
 
ISSN0007-0610
2012 Impact Factor: 0.811
2012 SCImago Journal Rankings: 0.370
 
ISI Accession Number IDWOS:A1997WF67500015
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorDyson, JE
 
dc.contributor.authorDarvell, BW
 
dc.date.accessioned2010-09-06T05:42:33Z
 
dc.date.available2010-09-06T05:42:33Z
 
dc.date.issued1997
 
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.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationBritish Dental Journal, 1997, v. 182 n. 1, p. 15-21 [How to Cite?]
 
dc.identifier.epage21
 
dc.identifier.hkuros22605
 
dc.identifier.isiWOS:A1997WF67500015
 
dc.identifier.issn0007-0610
2012 Impact Factor: 0.811
2012 SCImago Journal Rankings: 0.370
 
dc.identifier.issue1
 
dc.identifier.openurl
 
dc.identifier.pmid9029807
 
dc.identifier.scopuseid_2-s2.0-0031564376
 
dc.identifier.spage15
 
dc.identifier.urihttp://hdl.handle.net/10722/65974
 
dc.identifier.volume182
 
dc.languageeng
 
dc.publisherNature Publishing Group. The Journal's web site is located at http://www.bdj.co.uk
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofBritish Dental Journal
 
dc.relation.referencesReferences in Scopus
 
dc.subject.meshAir Pressure
 
dc.subject.meshDental High-Speed Equipment
 
dc.subject.meshDisposable Equipment
 
dc.subject.meshEfficiency
 
dc.subject.meshElectric Power Supplies
 
dc.subject.meshEquipment Design
 
dc.subject.meshEvaluation Studies as Topic
 
dc.subject.meshPlastics
 
dc.subject.meshRotation
 
dc.subject.meshTorque
 
dc.subject.meshVibration
 
dc.titleA laboratory evaluation of two brands of disposable air turbine handpiece
 
dc.typeArticle
 
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Author Affiliations
  1. Prince Philip Dental Hospital