The influence of altering sintering protocols on the optical and mechanical properties of zirconia: A review
| Autor: | Anthony P. McCullagh, Tom Troczynski, Ricardo M. Carvalho, Walaa Magdy Ahmed, Chris C.L. Wyatt |
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| Rok vydání: | 2019 |
| Předmět: |
Ceramics
Materials science Surface Properties 0206 medical engineering Monolithic zirconia technology industry and agriculture Clinical performance Sintering 030206 dentistry 02 engineering and technology equipment and supplies Microstructure 020601 biomedical engineering Dental Materials 03 medical and health sciences 0302 clinical medicine Materials Testing Zirconium oxide Humans Cubic zirconia Zirconium Composite material General Dentistry Systematic search |
| Zdroj: | Journal of Esthetic and Restorative Dentistry. 31:423-430 |
| ISSN: | 1708-8240 1496-4155 |
| DOI: | 10.1111/jerd.12492 |
| Popis: | Objective As a result of advancements in chairside technology and speed sintering techniques and increased esthetic demands of patients, efforts have been made to produce monolithic zirconia restorations that are highly translucent, strong, and dense. While methods for processing zirconia are well known, there is a tendency to modify the process parameters with the aim of decreasing the overall processing time and, in particular, the sintering time. This review provides clinicians with scientific evidence of the effects of altering sintering parameters used for dental zirconia on its microstructure, phase transformation, and mechanical and optical properties. Materials and methods A systematic search of Embase and Medline using Boolean operators was performed to locate relevant articles. Results Eleven articles were selected for this review. The following characteristics of monolithic zirconia have been confirmed to be affected by alterations in sintering: the microstructure, mechanical properties, optical properties, wear behavior, and low thermal degradation. Conclusions The alteration of sintering parameters has been found to alter the grain size, wear behavior, and translucency of zirconia. There is a lack of clinical studies that investigate the influence of altering sintering parameters or methods on the clinical performance of monolithic zirconia restorations. Clinical significance Alteration of sintering parameters alters the microstructural, mechanical, and optical properties of zirconia. This will consequently impact the clinical performance of zirconia prostheses. Future clinical investigations are encouraged to support these in vitro findings. |
| Databáze: | OpenAIRE |
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