Table 1.
Digital scanning systems tested.
Fig 1.
Master cast inside the methacrylate box to record digital scans.
Table 2.
Scanning procedure and indications of the intraoral digital impression systems included in the study.
Fig 2.
Scanning strategies: (A) Exterior-Interior, (B) Quadrants, (C) Sextants, (D) Sequential.
Fig 3.
CRM scanned with ATOS II Triple Scan scanner.
Fig 4.
Color-coded map of deviations between the CRM and test models from the Trios scanner according to the scanning strategy (Geomagic Control software).
Color degraded from -120 μm (blue) to + 120 μm (red), representing the contraction (blue) and expansion (red). (A) Exterior-Interior, (B) Quadrants, (C) Sextants, and (D) Sequential.
Fig 5.
Color-coded map of deviations between the CRM and test models from the iTero scanner according to the scanning strategy (Geomagic Control software).
Color degraded from -120 μm (blue) to + 120 μm (red), representing contraction (blue) and expansion (red). (A) Exterior-Interior, (B) Quadrants, (C) Sextants, and (D) Sequential.
Fig 6.
Color-coded map of deviations between the CRM and test models from the Omnicam scanner according to the scanning strategy (Geomagic Control software).
Color degraded from -120 μm (blue) to + 120 μm (red), representing contraction (blue) and expansion (red). (A) Exterior-Interior, (B) Quadrants, (C) Sextants, and (D) Sequential.
Fig 7.
Color-coded map of deviations between the CRM and test models from the True Definition scanner according to the scanning strategy (Geomagic Control software).
Color degraded from -120 μm (blue) to + 120 μm (red), representing contraction (blue) and expansion (red). (A) Exterior-Interior, (B) Quadrants, (C) Sextants, and (D) Sequential.
Table 3.
Raw data of trueness (μm) used for statistical analysis of the four scanners according to the scanning strategy.
Table 4.
Raw data of precision (μm) used for statistical analysis of the four scanners according to the scanning strategy.