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Effect of Build Angle on the Dimensional Accuracy of Monolithic Zirconia Crowns Fabricated with the Nanoparticle Jetting Technique by Jizhe Lyu; Xu Yang; Yi Li; Jianguo Tan; Xiaoqiang Liu is a Dentistry article available to read on EtoBox.

What is Effect of Build Angle on the Dimensional Accuracy of Monolithic Zirconia Crowns Fabricated with the Nanoparticle Jetting Technique about?

## Statement of problem. The build angle is an essential parameter in additive manufacturing. Its effect on the dimensional accuracy of zirconia restorations fabricated using the nanoparticle jetting (NPJ) technique is unknown. Purpose. The purpose of this in vitro study was to evaluate the effect of the build angle on the dimensional accuracy of monolithic zirconia complete crowns fabricated by using NPJ. ## Material and methods. Standardized artificial right maxillary incisors and mandibular first molars were prepared for ceramic complete crowns. In total, 100 monolithic zirconia crowns were fabricated using NPJ at build angles of 0, 45, 90, 135, and 180 degrees (n=10/angle for incisors and molars). The dimensional accuracies in the external, marginal, and intaglio regions were determined by superimposing the scanned data and computer-aided design data on the crowns. Root mean square (RMS) values were used to analyze the accuracy of the zirconia crowns overall and at the external, marginal, and intaglio surfaces. The Shapiro-Wilk test was used to examine the normality of data distribution. Differences among test groups were assessed using a 1-way analysis of variance and the post

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Author

Jizhe Lyu; Xu Yang; Yi Li; Jianguo Tan; Xiaoqiang Liu

Publisher

Elsevier BV

Published

2023

Field

Dentistry (Health Sciences)