Editorial Type:
Article Category: Research Article
 | 
Online Publication Date: 04 Apr 2025

Evaluation of Glazing and Polishing for Novel Chairside CAD/CAM Lithium Disilicate Containing Virgilite Crystals

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Page Range: 168 – 174
DOI: 10.2341/23-165.1-L
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SUMMARY

This comparative in vitro study evaluated surface treatment methods for chairside CAD/CAM lithium disilicate enriched with virgilite using atomic force microscopy (AFM) imaging. Specimens were fabricated from two lithium disilicate materials: the traditional material (IPS e.max CAD, Ivoclar Vivadent, Schaan, Liechtenstein) and a virgilite-containing material (CEREC Tessera, Dentsply Sirona, Charlotte, NC, USA). Surface roughness (Ra) [in micrometers (μm)] was quantitatively assessed with AFM. The results demonstrated that IPS e.max CAD with glazing exhibited the smoothest surface with the lowest Ra values (10.03 ± 5.03 μm). In contrast, CEREC Tessera exhibited the highest surface roughness when treated with glazing (51.98 ± 12.31 μm), while the zirconia polishing system provided a smoother surface (15.44 ± 9.69 μm).

Copyright: 2025
Figure 1.
Figure 1.

AFM images of four specimens from Group 1 (glazed CEREC Tessera).

Figure 2.
Figure 2.

AFM images of four specimens from Group 2 (CEREC Tessera polished with Dialite LD).

Figure 3.
Figure 3.

AFM images of four specimens from Group 3 (CEREC Tessera polished with Dialite ZR).

Figure 4.
Figure 4.

AFM images of four specimens from Group 4 (glazed IPS e.max CAD).

Contributor Notes

*Corresponding author: Freiburgstrasse 7, CH-3010 Bern, BE, Switzerland; e-mail: kelvin.afrashtehfar@unibe.ch
Accepted: 28 Sept 2024
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