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Article: Space analysis: a comparison between sonic digitization (DigiGraph Workstation) and the digital caliper

TitleSpace analysis: a comparison between sonic digitization (DigiGraph Workstation) and the digital caliper
Authors
Issue Date1998
PublisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/
Citation
European Journal of Orthodontics, 1998, v. 20 n. 6, p. 653-661 How to Cite?
AbstractThe introduction of the DigiGraph Workstation permits the use of sonic digitization to measure lateral cephalometric values, mesiodistal tooth size and arch perimeter discrepancy as a one-stop diagnostic record taking set-up. This study compared the reproducibility of mesiodistal total tooth widths and arch perimeter values, on plaster casts, given by the DigiGraph Workstation and by digital calipers. Forty-seven sets of plaster casts of Southern Chinese children (mean age 12.5 years) comprised the sample. Arch perimeter was measured using calipers in six segments from the distal of the first permanent molar to its antimere in each arch. The total mesiodistal widths of all teeth, excluding second and third molars, were also measured. The difference between the available arch perimeter and the total tooth widths was taken as the arch perimeter discrepancy. Sonic digitization of the study casts was completed according to instructions of the DigiGraph software. Paired t-tests and F-tests were used to compare the two methods. Compared with manual measurement, there was an over-estimation of the total tooth widths by 1 mm in the mandible and 0.5 mm in the maxilla, and an arch perimeter discrepancy of 1.6 mm in the mandible and 0.4 mm in the maxilla when using the sonic method. The sonic digitization was not as reproducible as the digital caliper and its clinical usefulness in evaluating the space problem of an individual malocclusion should be interpreted with caution.
Persistent Identifierhttp://hdl.handle.net/10722/48919
ISSN
2015 Impact Factor: 1.44
2015 SCImago Journal Rankings: 1.090
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMok, KHYen_HK
dc.contributor.authorCooke, MSen_HK
dc.date.accessioned2008-06-12T06:29:41Z-
dc.date.available2008-06-12T06:29:41Z-
dc.date.issued1998en_HK
dc.identifier.citationEuropean Journal of Orthodontics, 1998, v. 20 n. 6, p. 653-661en_HK
dc.identifier.issn0141-5387en_HK
dc.identifier.urihttp://hdl.handle.net/10722/48919-
dc.description.abstractThe introduction of the DigiGraph Workstation permits the use of sonic digitization to measure lateral cephalometric values, mesiodistal tooth size and arch perimeter discrepancy as a one-stop diagnostic record taking set-up. This study compared the reproducibility of mesiodistal total tooth widths and arch perimeter values, on plaster casts, given by the DigiGraph Workstation and by digital calipers. Forty-seven sets of plaster casts of Southern Chinese children (mean age 12.5 years) comprised the sample. Arch perimeter was measured using calipers in six segments from the distal of the first permanent molar to its antimere in each arch. The total mesiodistal widths of all teeth, excluding second and third molars, were also measured. The difference between the available arch perimeter and the total tooth widths was taken as the arch perimeter discrepancy. Sonic digitization of the study casts was completed according to instructions of the DigiGraph software. Paired t-tests and F-tests were used to compare the two methods. Compared with manual measurement, there was an over-estimation of the total tooth widths by 1 mm in the mandible and 0.5 mm in the maxilla, and an arch perimeter discrepancy of 1.6 mm in the mandible and 0.4 mm in the maxilla when using the sonic method. The sonic digitization was not as reproducible as the digital caliper and its clinical usefulness in evaluating the space problem of an individual malocclusion should be interpreted with caution.en_HK
dc.format.extent418 bytes-
dc.format.mimetypetext/html-
dc.languageengen_HK
dc.publisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject.meshCephalometry - instrumentation - methodsen_HK
dc.subject.meshDental Arch - pathologyen_HK
dc.subject.meshImage Processing, Computer-Assisteden_HK
dc.subject.meshMalocclusion - pathologyen_HK
dc.subject.meshTooth - pathologyen_HK
dc.titleSpace analysis: a comparison between sonic digitization (DigiGraph Workstation) and the digital caliperen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0141-5387&volume=20&issue=6&spage=653&epage=661&date=1998&atitle=Space+analysis:+a+comparison+between+sonic+digitization+(DigiGraph+Workstation)+and+the+digital+caliperen_HK
dc.identifier.emailCooke, MS: cookie@hkucc.hku.hken_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1093/ejo/20.6.653en_HK
dc.identifier.pmid9926633en_HK
dc.identifier.hkuros21067-
dc.identifier.isiWOS:000077875800001-

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