2013
DOI: 10.2319/051213-365.1
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Accuracy of laser-scanned models compared to plaster models and cone-beam computed tomography

Abstract: Objective: To compare the accuracy of measurements obtained from the three-dimensional (3D) laser scans to those taken from the cone-beam computed tomography (CBCT) scans and those obtained from plaster models. Materials and Methods: Eighteen different measurements, encompassing mesiodistal width of teeth and both maxillary and mandibular arch length and width, were selected using various landmarks. CBCT scans and plaster models were prepared from 60 patients. Plaster models were scanned using the Ortho Insigh… Show more

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Cited by 63 publications
(69 citation statements)
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“…The present study corroborates with previous researches [20,23,24] that have shown significant differences among measurements obtained using plaster or digital models. Despite of these differences, a substantial and almost perfect concordance was obtained between plaster and digital models measurements.…”
Section: Discussionsupporting
confidence: 83%
“…The present study corroborates with previous researches [20,23,24] that have shown significant differences among measurements obtained using plaster or digital models. Despite of these differences, a substantial and almost perfect concordance was obtained between plaster and digital models measurements.…”
Section: Discussionsupporting
confidence: 83%
“…This corresponds to 8% of the analysed dental distances (3 out of 12 distances x 3 techniques values), a value larger than that reported by Tarazona-Álvarez et al [6] who found only 5% of significant differences when comparing 20 linear distances obtained directly on dried mandibles and on their CBCT scans. Additionally, the current results well confirm that measurements involving the premolars are more variable than the other ones [4]. In general, the overestimation of calliper measurements vs. digital casts data is in line with the literature reports [18], while the comparison with CBCT data is more scattered.…”
Section: Are Dental Measurements Taken On Plaster Casts Comparable Tosupporting
confidence: 81%
“…For CBCT, similar data were reported by Kim et al [4,5]. Literature is not in agreement about the technique with the best reproducibility: both digital models [4,5,7], and plaster models [16] had the best scores in different studies. Overall, only three mesiodistal crown diameters had differences larger than 0.5 mm, which is considered the threshold for clinical acceptability [7,18].…”
Section: Are Dental Measurements Taken On Plaster Casts Comparable Tosupporting
confidence: 71%
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