Celtra Duo er en CAD/CAM-blokk for bruk ved behandlingsstolen i CEREC-enheter fra Dentsply Sirona. Den inneholder en høyfast glasskeramikk av zirkoniumforsterket litiumsilikat (ZLS), som kjennetegnes av høy bøyestyrke, vakker estetikk på grunn av opalescens og translusens, og enkel bearbeidbarhet. Takket være dette nye materialet kan Celtra Duo bearbeides etter kliniske behov: enten uten brenning med nesten dobbelt så stor styrke som konvensjonelle glasskeramikker, eller med en kort glaseringsbrenning som øker styrken til nivået for litiumdisilikat. Én blokk, to alternativer - Celtra Duo kombinerer fordelene fra tidligere CEREC-blokker i ett og samme produkt.
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