Journal ArticleDOI
Orthodontic measurements on digital study models compared with plaster models: a systematic review
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TLDR
The use of digital models as an alternative to conventional measurement on plaster models may be recommended, although the evidence identified in this review is of variable quality.Abstract:
The aim of this study is to evaluate the validity of the use of digital models to assess tooth size, arch length, irregularity index, arch width and crowding versus measurements generated on hand-held plaster models with digital callipers in patients with and without malocclusion. Studies comparing linear and angular measurements obtained on digital and standard plaster models were identified by searching multiple databases including MEDLINE, LILACS, BBO, ClinicalTrials.gov, the National Research Register and Pro-Quest Dissertation Abstracts and Thesis database, without restrictions relating to publication status or language of publication. Two authors were involved in study selection, quality assessment and the extraction of data. Items from the Quality Assessment of Studies of Diagnostic Accuracy included in Systematic Reviews checklist were used to assess the methodological quality of included studies. No meta-analysis was conducted. Comparisons between measurements of digital and plaster models made directly within studies were reported, and the difference between the (repeated) measurement means for digital and plaster models were considered as estimates. Seventeen relevant studies were included. Where reported, overall, the absolute mean differences between direct and indirect measurements on plaster and digital models were minor and clinically insignificant. Orthodontic measurements with digital models were comparable to those derived from plaster models. The use of digital models as an alternative to conventional measurement on plaster models may be recommended, although the evidence identified in this review is of variable quality.read more
Citations
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Journal ArticleDOI
Accuracy and reproducibility of dental replica models reconstructed by different rapid prototyping techniques.
TL;DR: Dental models reconstructed by the tested rapid prototyping techniques are considered clinically acceptable in terms of accuracy and reproducibility and might be appropriate for selected applications in orthodontics.
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Precision and trueness of dental models manufactured with different 3-dimensional printing techniques.
TL;DR: The PolyJet technique provides the greatest trueness and precision and the PolyJet and DLP techniques were more precise than the FFF and SLA techniques, with the Poly Jet technique having the highest accuracy.
Journal ArticleDOI
Validity, reliability, and reproducibility of linear measurements on digital models obtained from intraoral and cone-beam computed tomography scans of alginate impressions.
Matthew G. Wiranto,W. Petrie Engelbrecht,Heleen E. Tutein Nolthenius,W. Joerd van der Meer,Yijin Ren +4 more
TL;DR: Both intraoral scanning and cone-beam computed tomography scanning of alginate impressions are valid, reliable, and reproducible methods to obtain dental measurements for diagnostic purposes.
Journal ArticleDOI
Accuracy, reliability, and efficiency of intraoral scanners for full-arch impressions: a systematic review of the clinical evidence
TL;DR: The scientific evidence so far collected on intraoral scanning is neither exhaustive, nor up-to-date.
Journal ArticleDOI
Diagnostic accuracy and measurement sensitivity of digital models for orthodontic purposes: A systematic review
Gabriele Rossini,Simone Parrini,Tommaso Castroflorio,Andrea Deregibus,Cesare Lorenzo Debernardi +4 more
TL;DR: Digital models are as reliable as traditional plaster models, with high accuracy, reliability, and reproducibility, and with their advantages in terms of cost, time, and space required, they could be considered the new gold standard in current practice.
References
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Journal ArticleDOI
The development of QUADAS: a tool for the quality assessment of studies of diagnostic accuracy included in systematic reviews
TL;DR: In this article, an evidence-based quality assessment tool called QUADAS was proposed to assess the quality of primary studies of diagnostic accuracy, based on the results of three previously conducted reviews of the diagnostic literature.
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Validity, reliability, and reproducibility of plaster vs digital study models: Comparison of peer assessment rating and Bolton analysis and their constituent measurements
TL;DR: Preliminary results did not indicate that digital models would cause an orthodontist to make a different diagnosis of malocclusion compared with plaster models; digital models are not a compromised choice for treatment planning or diagnosis.
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Comparison of measurements made on digital and plaster models
TL;DR: Evaluating the reliability of the OrthoCAD system showed a statistically significant difference between the 2 groups for tooth size and overbite, with the digital measurements smaller than the manual measurements.
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The Accuracy and Reliability of Measurements Made on Computer-Based Digital Models
TL;DR: Measurements made from computer-based models appear to be generally as accurate and reliable as measurements made from plaster models and seem to be a clinically acceptable alternative to conventional plaster models.