Accuracy of digital models obtained by direct and indirect data capturing

Abstract

Within the limitations of this study, the method of direct digitalisation seems to have the potential to improve the accuracy of impressions for four-unit FDPs.

Evaluation of fit and efficiency of CAD/CAM fabricated all-ceramic restorations based on direct and indirect digitalization: a double-blinded, randomized clinical trial

“…This system also comes with the need for powdering the tooth surface. This intraoral scanner can offer comparable results like conventional methods, regarding accuracy [33]. However, a number of computer-aided impression systems do not require the use of an opaque powder, such as iTero, cara Trios, and CEREC Omnicam [34].…”

Comparison of accuracy and reproducibility of casts made by digital and conventional methods

“…[16][17][18] A recently introduced method allows the quantitative and qualitative 3D analysis of dental materials, including restorations, impressions, or casts. 19 The aim of this study was to identify the discrepancy, accuracy, and reproducibility of digital casts compared with a master model.…”

“…The differences in the current results may be attributed to the use of different conventional impression materials and procedures and to different digital impression methods. Guth et al 17 reported that the intraoral Lava C.O.S system showed significantly higher accuracy than the conventional impression procedure and indirect digitalization. However, intraoral conditions such as saliva, powder, and limited space could contribute to inaccuracies in the digital scan.…”

Di̇ş Heki̇mli̇ği̇nde Kullanilan Ölçü Si̇stemleri̇nde Güncel Yaklaşimlar: Di̇ji̇tal Ölçü

“…Buna göre; istenilen restorasyon için hazırlanan dişler ağız içi görüntüleme sistemleri yardımı ile taranır ve bilgisayar ortamına aktarılır. 25 Hassasiyet bakımından indirek teknik, konvansiyonel ölçü materyallerini ve ölçü tekniklerini içerdiğin-den direk tekniğe göre farklılıklar göstermektedir. Bu nedenle; ölçü maddelerinin boyutsal stabilitesi, saklama koşulları, dezenfeksiyon sırasındaki distorsiyonlar, ölçü kaşığından ayrılması ve uyumsuzluğu, dental laboratuvara transferi sırasındaki şartlar dikkate alınmalıdır.…”