Fig 1.
Flow chart.
Fig 2.
Measurement method of arch width.
Fig 3.
Measurement method of palatal vault height.
Table 1.
Classification of Arch Width.
Table 2.
Classification of Palatal Vault Height.
Fig 4.
Color-coded deviation maps presentation after best fit alignment and 3D compare by Geomagic Qualify 12.
(a) Trueness of digital impression for palatal soft tissues. Left: The top of the palatal vault was in the behind position. Right: The top of the palatal vault was in the front position. (b) Trueness of digital impression for full upper dentitions. (c) Precision of digital impression for palatal soft tissues. (d) Precision of digital impression for full upper dentitions. Color-coded scale unit: millimetre.
Fig 5.
Box plot demonstrating accuracy measurement (trueness and precision) for palatal soft tissues and full upper dentitions.
The black dots represent outliers.
Table 3.
Effect of Arch Width on Mean(S.D.) Accuracy of Intraoral Digital Impressions for Palatal Soft Tissues and Full Dentitions in Millimeter.
Fig 6.
A linear correlation was found between arch width and precision of the digital impressions for full upper dentitions (r = 0.485,p = 0.002).
Fig 7.
A linear correlation was found between arch width and precision of the digital impressions for palatal soft tissues (r = 0.326,p = 0.034).
Table 4.
Effect of Palatal Vault Height on Mean(S.D.) Accuracy of Intraoral Digital Impressions for Palatal Soft Tissues and Full Dentitions in Millimeter.