Comparing Methods for Dental Casts Measurement

Authors

  • Johan Arief Budiman Health Polytechnic Jakarta 2, Ministry of Health Republic of Indonesia

Keywords:

Dental casts, Measurement methods, 2D

Abstract

Traditionally, conventional dividers and sliding calipers, analog or digital, have been used to measure dental casts manually. Today, several digital methods are available for measuring tooth size. The digital methods of measurements were gathered by transforming the 3D dental plaster casts into 2D form. Scanners, Photocopy machine, Digital camera are means to make this transformation. OBJECTIVE: This research was to find out which method of dental casts measurement is the best accuracy and reliability. METHOD: Mandibular dental casts of 10 patients, mixed gender, taken after finishing orthodontic treatment were formed by using 3 different dental stones color. The variables (tooth size, intercanine width, intercanine depth, intermolar width, intermolar depth) were measured using 7 methods. All data were analyzed statistically. Anova, followed by independent t-test, were applied to test the difference of variables measured in sexes, colors and methods. Alpha Cronbach was used to test the reliability among methods. To compare the accuracy among methods, we applied sensitivity, specificity and ROC test of variables among methods. Regression analysis was applied for several variables that showed significantly different (p<0.05) as a result of different measurement methods compared to gold standard. RESULT: Colors did not play important role for the result of measurement gathered from different methods. Sexes should be considered taking part for different value of measurement. CONCLUSION: 3D measurement still gave the best measurement result, despite the difficulties in handling the dental casts. With some mathematical equations derived from regression analyses, 2D measurement could give almost the same result as 3D measurement.

References

Hunter, WS, Priest, WR, Errors and Discrepancies in Measurement of tooth size , J. Dent Rest, 1960, 405-14.

Shellhart, WC, Lange, DW, Reliability of the Bolton tooth-size analysis when applied to crowded dentitions, Angle Orthod. 1995; 5; 327-34.

Sondhi, A, Cleall, JF, BeGole, EA, Dimensional Changes in the Dental Arches of Orthodontically treated cases; Am.J.Orthod.; 1980; 77(1): 60-74.

Taner, T, Ciger, S, El, H, Germec, D, Es, T, Evaluation of Dental Arch Width and form changes after orthodontic treatment and retention with a new computerized method, Am.J.Orthod. Dentofacial Orthop., 2004; 126: 464-76.

Noroozi, H, Djavid, GE, Moeinzad H, Teimouri, AP, Prediction of Arch Perimeter Changes due to orthodontic treatment., Am. J.Orthod. Dentofacial Orthop.; 2002; 122: 601-7.

Braun, S, Hnat, WP, Fender, DE, Legan, HL, The Form of the Human Dental Arch, Angle Orthod; 1998; (1): 29-36.

Zilberman, O, Huggare, JAV, Parikakis, KA, Evaluation of the validity of tooth size and arch width Measurements using Conventional and Three-dimensional Virtual Orthodontic Models, Angle Orthod., 2003; 73:301-6.

Paredes, V, Gandia, JL, Cibrian, R, New, Fast, and Accurate Procedure to Calibrate a 2-Dimensional Digital Measurement Method, Am. J.Orthod Dentofacial Orthop 2005; 127:518-9.

Downloads

Published

2016-04-15

How to Cite

Budiman, J. A. (2016). Comparing Methods for Dental Casts Measurement. Asian Journal of Applied Sciences, 4(2). Retrieved from https://ajouronline.com/index.php/AJAS/article/view/3693

Issue

Vol. 4 No. 2 (2016): April 2016

Section

Articles

License

  • Papers must be submitted on the understanding that they have not been published elsewhere (except in the form of an abstract or as part of a published lecture, review, or thesis) and are not currently under consideration by another journal published by any other publisher.
  • It is also the authors responsibility to ensure that the articles emanating from a particular source are submitted with the necessary approval.
  • The authors warrant that the paper is original and that he/she is the author of the paper, except for material that is clearly identified as to its original source, with permission notices from the copyright owners where required.
  • The authors ensure that all the references carefully and they are accurate in the text as well as in the list of references (and vice versa).
  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Attribution-NonCommercial 4.0 International that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  • Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
  • The journal/publisher is not responsible for subsequent uses of the work. It is the author's responsibility to bring an infringement action if so desired by the author.