The Effects of Orthodontic Brackets on the Time and Accuracy of Digital Impression Taking

Hyojin Heo and Minji Kim
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Hyojin Heo: Department of Preventive Dentistry, Kyungpook National University School of Dentistry, Daegu 41940, Korea
Minji Kim: Department of Orthodontics, School of Medicine, Ewha Womans University, Seoul 07985, Korea

IJERPH, 2021, vol. 18, issue 10, 1-11

Abstract: Background: The aim of the study was to study how the presence or the type of the orthodontic brackets influence the time measurement and accuracy of impressions using a digital oral scanner. Methods: The same models were divided into the control group (the model without a bracket), MB group (the model with a metal bracket), and CB group (the model with a monocrystalline bracket). Subsequently, scanning was conducted five times for each model using the Trios Pod 2 ® . Simultaneously, the duration for taking the digital impression was measured. The degree of accuracy was compared among the three groups. Results: As compared with the control group, scanning took 53.3 s longer in the MB group and 194.23 s longer in the CB group. In the canine and the first molar, the mean values of errors were compared between the left and right sides; in both the canine and the first molar, errors between the control group and the CB group were the greatest. Conclusions: Following a comparison of the duration and accuracy of the impressions between the three groups, our results suggest that its degree was the highest in the CB group where a monocrystalline bracket was attached.

Keywords: digital impression; measuring time; orthodontic brackets; scanner accuracy (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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