17 July 2026 : Laboratory Research
Evaluation of the Trueness and Precision of Cast, Milled-Cast, Milled, and 3D-Printed Post-and-Core Techniques Using Matching Software: An In Vitro Study
Majed S. Altoman
ABEG 1*, Manar K. Alamri BEF 2, Asim A. Alsarh EF 3, Nada S. Alahmari EF 4, Ali J. Asiri EF 5, Atheer N. Almuaddi EF 3, Mohammed A. Alfaifi ABD 1, Hatem Alqarni ABE 6, Satheesh B. Haralur ABCD 1
DOI: 10.12659/MSM.953491
Med Sci Monit 2026; 32:e953491
Table 1 Summary of mean (SD) values for trueness (RMS), precision, and clinical tolerance of post-and-core restorations fabricated by conventional casting, milled wax-cast, CAD/CAM-milled zirconia, and 3Dprinted zirconia.
| Group | n | RMS (mm) | Precision (mm) | Clinical tolerance (%) |
|---|---|---|---|---|
| I (conventional cast) | 10 | 0.299 (0.047) | 0.289 (0.043) | 3.9 |
| II (milled wax-cast metal) | 10 | 0.722 (0.014) | 0.564 (0.036) | 0.7 |
| III (CAD/CAM-milled zirconia) | 10 | 0.729 (0.017) | 0.462 (0.026) | 1.8 |
| IV (3D-printed zirconia) | 10 | 0.760 (0.013) | 0.426 (0.046) | 0.9 |
| SD, standard deviation; RMS, root mean square; CAD/CAM, computer-aided design/computer-aided manufacturing. | ||||