Validity and Reliability of Digital Model Measurements: A Digital Stereomicroscopic Study

• Shahid Fazal

  Orthodontic Unit, School of Dental Science, Universiti Sains Malaysia

• Khursheed Alam Mohammad

  Orthodontic Unit, School of Dental Science, Universiti Sains Malaysia

• Fadhli Khamis Mohd

  Forensic Dentistry Unit, School of Dental Science, Universiti Sains Malaysia

• Muraoka Rina

  Department of Orthodontics, Matsumoto Dental University School of Dentistry

• Nakano Keisuke

  Department of Hard Tissue Research, Matsumoto Dental University Graduate School of Oral Medicine

• Okafuji Norimasa

  Department of Hard Tissue Research, Matsumoto Dental University Graduate School of Oral Medicine

Abstract

The purpose of this study was to evaluate the validity and reliability of orthodontic measurements made on digital models created with Hirox digital microscope (HDM). The data sources were plaster dental models from the archives of School of Dental Sciences, Universiti Sains Malaysia. A total of 11 dental models with 396 variables were measured using the plaster dental casts, and Hirox digital models were created. The study inclusion and exclusion criteria were followed. Two investigators (A and B) carried out the measurements of the selected dental casts using a digital caliper (DC) and the HDM. Dental plaster models were scanned using the HDM for the fabrication of the Hirox digital models. The tooth size and arch width were measured by DC and HDM. The validity of the digital measurements for examiners A and B the ICC coefficients were statistically significant (p<0.001), and the values of coefficient were in the range of strong correlation. The ICC coefficient values for inter-examiner A and B were all in the range of strong correlation for both tooth size and arch width variables in which the reliability coefficient values were comparable between digital measurements using HDM and measurements using DC. All ICC coefficient values were statistically significant (p<0.001). The results show that linear measurements of dental casts using a digital microscope are valid and reliable.

Journal

• Journal of Hard Tissue Biology

  Journal of Hard Tissue Biology 23 (4), 439-444, 2014

  THE SOCIETY FOR HARD TISSUE REGENERATIVE BIOLOGY

Keywords

• Digital dental model
• Stereomicroscope
• Validity
• Reliability

Details

• CRID: 1390282679435657856
• NII Article ID: 130004700429
• NII Book ID: AA11074332
• DOI: 10.2485/jhtb.23.439
• ISSN: 1880828X
• ISSN: 13417649
• NDL BIB ID: 025864735
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025864735
• Web Site: https://search.jamas.or.jp/link/ui/2015325367
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed