Journal article
Evaluation of Glazing and Polishing Systems for Novel Chairside CAD/CAM Lithium Disilicate and Virgilite Crowns
Operative dentistry, Vol.48(6), pp.689-699
11/01/2023
DOI: 10.2341/23-017-L
PMID: 37881035
Abstract
SUMMARY Objective The purpose of this study was to evaluate the effectiveness of glazing, two zirconia, and two lithium disilicate polishing systems on surface roughness of a CAD/CAM lithium disilicate and virgilite ceramic with atomic force microscopy (AFM) and visual assessment performed by dental students and faculty. Methods and Materials Sixty maxillary right central incisor crowns made of a novel chairside CAD/CAM lithium disilicate and virgilite (CEREC Tessera) were milled for glazing and polishing. The crowns were divided into six groups: no polishing/glazing provided (NoP/G); glazed (GZ); glazed and polished with Brasseler Dialite LD Lithium Disilicate (DiLD); glazed and polished with Meisinger Luster Lithium Disilicate (LuLD); glazed and polished with Brasseler Dialite ZR Zirconia (DiZR); and glazed and polished with Meisinger Luster Zirconia (LuZR). Surfaces were scanned with AFM to measure roughness (Ra) and root mean square roughness (Rq) and generate micrographs. Crowns were visually assessed by 10 dental students and 10 dental school faculty members to determine clinical acceptableness. Results Glazing and all polishing kits significantly reduced Ra and Rq compared to no polishing/glazing. No significant Ra differences were found between glazing and all polishing kits (p>0.05). DiZR significantly reduced Rq compared to other groups (p<0.05). Visual assessment showed that GZ, LuLD, and DiZR were the most clinically acceptable crowns. Conclusion Polishing and glazing considerably improve the surface smoothness of maxillary central incisor crowns fabricated out of a chairside CAD/CAM lithium disilicate and virgilite ceramic. Altogether, zirconia polishing systems provided smoother and more clinically acceptable surfaces than the lithium disilicate kits.
Details
- Title: Subtitle
- Evaluation of Glazing and Polishing Systems for Novel Chairside CAD/CAM Lithium Disilicate and Virgilite Crowns
- Creators
- C A Jurado - University of IowaK Arndt - Texas Tech University Health Sciences CenterF X Azpiazu-FloresF Faddoul - Texas Tech University Health Sciences CenterR França - University of ManitobaN G Fischer - University of MinnesotaH Watanabe - Oregon Health & Science University
- Resource Type
- Journal article
- Publication Details
- Operative dentistry, Vol.48(6), pp.689-699
- DOI
- 10.2341/23-017-L
- PMID
- 37881035
- ISSN
- 0361-7734
- eISSN
- 1559-2863
- Language
- English
- Electronic publication date
- 10/26/2023
- Date published
- 11/01/2023
- Academic Unit
- Prosthodontics
- Record Identifier
- 9984502959002771
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