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. 2022 Feb 24;14(5):906.
doi: 10.3390/polym14050906.

A Review on CAD/CAM Yttria-Stabilized Tetragonal Zirconia Polycrystal (Y-TZP) and Polymethyl Methacrylate (PMMA) and Their Biological Behavior

Cristina Herráez-Galindo  1 , María Rizo-Gorrita  1 , Serafín Maza-Solano  1 , María-Angeles Serrera-Figallo  1 , Daniel Torres-Lagares  1
Affiliations

A Review on CAD/CAM Yttria-Stabilized Tetragonal Zirconia Polycrystal (Y-TZP) and Polymethyl Methacrylate (PMMA) and Their Biological Behavior

Cristina Herráez-Galindo et al. Polymers (Basel). .

Abstract

Yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) and polymethyl methacrylate (PMMA) are used very often in dentistry. Y-TZP is the most widely used zirconia dental ceramic, and PMMA has classically been used in removable prosthesis manufacturing. Both types of materials are commercialized in CAD/CAM system blocks and represent alternatives for long-lasting temporary (PMMA) or definitive (Y-TZP) implantological abutments. The aim of the present work is to reveal that human gingival fibroblasts (HGFs) have a favorable response when they are in contact with Y-TZP or PMMA as a dental implant abutment or implant-supported fixed prosthesis, and also to review their principal characteristics. We conducted an electronic search in the PubMed database. From an initial search of more than 32,000 articles, the application of filters reduced this number to 5104. After reading the abstracts and titles, we reduced the eligible articles to 23. Ultimately, we have included eight articles in this review.

Keywords: computer-aided design/computer-aided manufacturing (CAD/CAM) materials; gingival fibroblast; polymethyl methacrylate (PMMA); yttria-stabilized tetragonal zirconia polycrystal (Y-TZP).

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Clinical example of Y-TZP (Corcon® htML Dentsply Sirona, York, PA, USA) used in an implant for definitive rehabilitation: (a) Frontal clinical view of the definitive prosthesis placed over five implants, (b) View of the design software used in this clinical case (inLab CAD Dentsply Sirona, York, PA, USA).
Figure 2
Figure 2
Clinical example of PMMA (Telio CAD Ivoclar-Vivadent, Schaan, Liechtenstein) used in an implant for temporary rehabilitation: (a) Lateral clinical view of the definitive prosthesis placed over five implants, (b) View of the design software used in this clinical case (inLab CAD Dentsply Sirona, York, PA, USA).
Figure 3
Figure 3
Risk of bias graph, review of authors’ judgements about each risk of bias item presented as a percentage.
See this image and copyright information in PMC

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