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Published: 2026-07-06
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DOI: https://doi.org/10.52852/tcncyh.v203i6.5368
Issue
Vol. 203 No. 6 (2026)
Section
Các bài báo
How to Cite
Tuấn Anh, N. ., Sơn, T. M., Thông, P. T., Ngọc, V. T. N., Trà, N. T., Minh, V. N., Linh, T. K., Duy, L. K., Phương, T. L. Q., Lợi, P. T., & Tú, P. N. (2026). Evaluating the fit of onlay fabricated using 3D printing and CAD/CAM technology: An in-vitro study. Journal of Medical Research, 203(6), 42-49. https://doi.org/10.52852/tcncyh.v203i6.5368

Evaluating the fit of onlay fabricated using 3D printing and CAD/CAM technology: An in-vitro study

Nghiem Tuan Anh, Tong Minh Son, Pham Thai Thong, Vo Truong Nhu Ngoc, Nguyen Thu Tra, Vo Nhat Minh, Trinh Khanh Linh, Lam Khanh Duy, Tran Le Quynh Phuong, Phan Thanh Loi, Pham Ngoc Tu

Main Article Content

Abstract

The degree of fit between the restoration and the prepared cavity is one of the important criteria for evaluating treatment effectiveness and predicting the long-term functional efficacy of dental restorations. An in-vitro study was conducted to evaluate the fit of hybrid ceramic onlay restorations fabricated using 3D printing and CAD/CAM technology. The fit was assessed at 100 points in the pulpal wall and marginal adaptation using Reference-Point Matching (RPM) and Silicone Replica Geomagic (SRG). The results showed that CAD/CAM-fabricated onlay restorations had a higher fit than the 3D-printed onlay group at most points, with a statistically significant correlation (p < 0.05). However, the deviation values assessed by RPM and SRG were both less than 120 μm, which is acceptable in clinical practice. Restorations fabricated using 3D printing and CAD/CAM both exhibit a higher risk of marginal application at the finish line compared to other locations.

Article Details

Keywords

accuracy-fit, 3D-printing, CAD/CAM, RPM, SRG

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