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Article: Virtual model analysis as an alternative approach to plaster model analysis: Reliability and validity

TitleVirtual model analysis as an alternative approach to plaster model analysis: Reliability and validity
Authors
Issue Date2010
PublisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/
Citation
European Journal Of Orthodontics, 2010, v. 32 n. 5, p. 589-595 How to Cite?
AbstractThe objective of this study was to assess the feasibility of virtual models as an alternative to orthodontic plaster models. Virtual dental models (obtained from OrthoCAD®) and corresponding plaster models of 80 patients in the permanent dentition were randomly selected from patients seeking orthodontic care. Inter-examiner error was assessed by measuring tooth width, overjet, overbite, intermolar width, intercanine width, and midline discrepancy. Criterion validity of virtual model analysis was determined by the agreement between the measurements from virtual and plaster models. Test-retest reliability was determined by remeasuring 10 virtual models 1 week later. Comparison analysis was assessed by calculating the mean directional differences and standardized directional differences. Correlation analysis was determined by calculating the intraclass correlation coefficients (ICCs).Both intra- and inter-examiner reliability and test-retest reliability of virtual model analysis were acceptable in measuring intercanine, intermolar, overjet, overbite, midline discrepancy, space analysis, and tooth width (ICC > 0.7). Good criterion validity was indicated by agreement between the results from the plaster and virtual models (ICC > 0.8). There were substantial agreements for canine and molar relationship classifications (κ > 0.70). The results suggest that analysis performed on virtual models is as valid as traditional plaster models for intra- and inter-arch relationship. © The Author 2010.
Persistent Identifierhttp://hdl.handle.net/10722/66803
ISSN
2015 Impact Factor: 1.44
2015 SCImago Journal Rankings: 1.090
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong10206658.23438.08003.301.01
Funding Information:

University of Hong Kong (10206658.23438.08003.301.01).

References

 

DC FieldValueLanguage
dc.contributor.authorBootvong, Ken_HK
dc.contributor.authorLiu, Zen_HK
dc.contributor.authorMcGrath, Cen_HK
dc.contributor.authorHägg, Uen_HK
dc.contributor.authorWong, RWKen_HK
dc.contributor.authorBendeus, Men_HK
dc.contributor.authorYeung, Sen_HK
dc.date.accessioned2010-09-06T05:49:29Z-
dc.date.available2010-09-06T05:49:29Z-
dc.date.issued2010en_HK
dc.identifier.citationEuropean Journal Of Orthodontics, 2010, v. 32 n. 5, p. 589-595en_HK
dc.identifier.issn0141-5387en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66803-
dc.description.abstractThe objective of this study was to assess the feasibility of virtual models as an alternative to orthodontic plaster models. Virtual dental models (obtained from OrthoCAD®) and corresponding plaster models of 80 patients in the permanent dentition were randomly selected from patients seeking orthodontic care. Inter-examiner error was assessed by measuring tooth width, overjet, overbite, intermolar width, intercanine width, and midline discrepancy. Criterion validity of virtual model analysis was determined by the agreement between the measurements from virtual and plaster models. Test-retest reliability was determined by remeasuring 10 virtual models 1 week later. Comparison analysis was assessed by calculating the mean directional differences and standardized directional differences. Correlation analysis was determined by calculating the intraclass correlation coefficients (ICCs).Both intra- and inter-examiner reliability and test-retest reliability of virtual model analysis were acceptable in measuring intercanine, intermolar, overjet, overbite, midline discrepancy, space analysis, and tooth width (ICC > 0.7). Good criterion validity was indicated by agreement between the results from the plaster and virtual models (ICC > 0.8). There were substantial agreements for canine and molar relationship classifications (κ > 0.70). The results suggest that analysis performed on virtual models is as valid as traditional plaster models for intra- and inter-arch relationship. © The Author 2010.en_HK
dc.languageengen_HK
dc.publisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/en_HK
dc.relation.ispartofEuropean Journal of Orthodonticsen_HK
dc.rightsEuropean Journal of Orthodontics. Copyright © Oxford University Press.en_HK
dc.subject.meshComputer Simulationen_HK
dc.subject.meshComputer-Aided Designen_HK
dc.subject.meshDental Arch - anatomy & histologyen_HK
dc.subject.meshDental Modelsen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMalocclusion - diagnosis - therapyen_HK
dc.subject.meshObserver Variationen_HK
dc.subject.meshOdontometry - instrumentation - methodsen_HK
dc.subject.meshOrthodontic Appliance Design - instrumentationen_HK
dc.subject.meshOrthodontics, Corrective - methodsen_HK
dc.subject.meshPatient Care Planningen_HK
dc.subject.meshReproducibility of Resultsen_HK
dc.titleVirtual model analysis as an alternative approach to plaster model analysis: Reliability and validityen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0141-5387&volume=February&spage=1&epage=7&date=2010&atitle=Virtual+model+analysis+as+an+alternative+approach+to+plaster+model+analysis:+reliability+and+validityen_HK
dc.identifier.emailMcGrath, C:mcgrathc@hkucc.hku.hken_HK
dc.identifier.emailHägg, U:euohagg@hkusua.hku.hken_HK
dc.identifier.emailWong, RWK:fyoung@hkucc.hku.hken_HK
dc.identifier.authorityMcGrath, C=rp00037en_HK
dc.identifier.authorityHägg, U=rp00020en_HK
dc.identifier.authorityWong, RWK=rp00038en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1093/ejo/cjp159en_HK
dc.identifier.pmid20164126-
dc.identifier.scopuseid_2-s2.0-77957775917en_HK
dc.identifier.hkuros168979en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77957775917&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume32en_HK
dc.identifier.issue5en_HK
dc.identifier.spage589en_HK
dc.identifier.epage595en_HK
dc.identifier.isiWOS:000282426900017-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridBootvong, K=37030542500en_HK
dc.identifier.scopusauthoridLiu, Z=37031416000en_HK
dc.identifier.scopusauthoridMcGrath, C=7102335507en_HK
dc.identifier.scopusauthoridHägg, U=7006790279en_HK
dc.identifier.scopusauthoridWong, RWK=7402127170en_HK
dc.identifier.scopusauthoridBendeus, M=6506522941en_HK
dc.identifier.scopusauthoridYeung, S=36341908100en_HK
dc.identifier.citeulike7958968-

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