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Desgaste do esmalte antagonista de zircônia monolítica
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|---|---|---|---|---|
| PPG_35104 | 319.06 KB | Adobe PDF |
Advisor(s)
Abstract(s)
A busca por coroas protéticas duradouras e semelhantes aos dentes, a evolução da resistência dos materiais sem metal e da tecnologia CAD/CAM ampliaram as indicações de uso das cerâmicas odontológicas. Dentre elas, a de zircônia policristalina estabilizada por ítrio, (Y-TZP), recebeu grande destaque ao ser usada na forma monolítica, sem material de cobertura estética, na região posterior e até mesmo anterior da boca. Apesar das suas excelentes propriedades químicas e mecânicas, foi deduzido que a zircônia, quando antagonista do esmalte dentário, desgastaria o mesmo, por ter a dureza muito superior, como ocorre com as cerâmicas. O objetivo desta revisão bibliográfica foi buscar esclarecimentos sobre o comportamento ao desgaste do esmalte dentário antagonista à recente zircônia monolítica, em suas variadas superfícies, e apontar a correta indicação de uso deste novo material na clínica visando preservar o esmalte dentário natural. E concluiu-se que a zircônia monolítica desgastou pouco o esmalte antagonista.
The search for durable and tooth-like prosthetic crowns, the evolution of resistant materials without metal and the CAD / CAM technology led to the increase use of dental ceramics. Among them, yttrium-stabilized polycrystalline zirconia, (Y-TZP), received great notability when used in monolithic form, without coating material, in the posterior and anterior region. Despite its excellent chemical and mechanical properties, it was deduced that zirconia, as an opposing of dental enamel, would wear the same, because its hardness is much higher than that ceramics. This review aimed to clarify the performance regarding the wear of the opposing teeth towards the recent monolithic zirconia in all its surfaces and to point out the appropriate clinical use of this new material in the clinic in order to preserve the natural dental enamel. It was concluded that monolithic zirconia caused little wear to the opposing enamel.
The search for durable and tooth-like prosthetic crowns, the evolution of resistant materials without metal and the CAD / CAM technology led to the increase use of dental ceramics. Among them, yttrium-stabilized polycrystalline zirconia, (Y-TZP), received great notability when used in monolithic form, without coating material, in the posterior and anterior region. Despite its excellent chemical and mechanical properties, it was deduced that zirconia, as an opposing of dental enamel, would wear the same, because its hardness is much higher than that ceramics. This review aimed to clarify the performance regarding the wear of the opposing teeth towards the recent monolithic zirconia in all its surfaces and to point out the appropriate clinical use of this new material in the clinic in order to preserve the natural dental enamel. It was concluded that monolithic zirconia caused little wear to the opposing enamel.
Description
Keywords
Zircônia Esmalte Antagonista Desgaste Zirconia Enamel Antagonist Wear