PMID: 9423701Jan 10, 1998Paper

Manual and computer-aided space analysis: a comparative study

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
U R Schirmer, W A Wiltshire

Abstract

Recently, computers have been used to measure key landmarks from photocopies of upper and lower study models to increase simplicity, accuracy, and informatics. This is a comparative study to evaluate the accuracy and reliability of computer-aided space analysis. Data were collected from a series of randomly selected study models. All subjects had Angle Class I molar relationships with minor malocclusions such as crowding, rotations, or diastemas. Two investigators independently measured teeth on models with a Vernier gauge that had sharpened caliper tips. Intraexaminer and interexaminer reliability was determined at 0.2 mm. All teeth, to and including the first molars, were measured. Two photocopies of each set of models were made on a photostat machine (Xerox, Japan) and were coded. A template with a ruler was used, to allow the investigator to compensate for any reduction or enlargement error during the photocopying process. The mesiodistal sizes were measured with a digitizer, and results were processed by using a dedicated computer program. Evaluations were done in a double-blind manner. The nonparametric Wilcoxon signed rank test for paired observations to compare median differences between measurements was used. Intraexam...Continue Reading

References

Mar 1, 1960·Journal of Dental Research·W S HUNTER, W R PRIEST

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Citations

Mar 27, 2004·British Dental Journal·H L Craddock, C C Youngson
Jul 18, 2008·European Journal of Orthodontics·M Al-AbdallahK O'Brien
Sep 5, 2009·European Journal of Orthodontics·Hüsamettin Oktay, Esengül Ulukaya
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Jun 2, 2014·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Ilknur VeliTancan Uysal
Jul 6, 2014·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Johanna RadekeBernd G Lapatki
Jan 1, 2014·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Aletta HazeveldYijin Ren
Aug 6, 2013·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Devan Naidu, Terrence J Freer
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