2026-03-13T22:43:57Z https://www.peertechzpublications.org/oai-pmh

oai:www.peertechzpublications.org:10.17352/2394-8418.000115 2022-10-18 PTZ.JDPS:VOL9

Chemical surface modification of lithium disilicate needles of a silica-based ceramic after HF-etching and ultrasonic bath cleaning: impact on the chemical bonding with silane A Poulon-Quintin F Rouzé l’Alzit E Ogden A Large C BertrandM Bartala<p>Recommendations to obtain the best bonding to silica-based ceramics are to prepare its surface by hydrofluoric-acid HF etching and regular application of a silane. This study investigated how the HF-etching followed by ultrasonic water bath cleaning or by an additional phosphoric acid treatment impacts the adhesion properties of a resin (G-CEM LinkForce®) with a lithium disilicate glass-ceramic (IPS Emax Press, Ivoclar Vivadent). Comparison is based on results obtained with HF etching and direct silane application. After HF-etching, a water ultrasonic bath (4 minutes), and a final air drying, the scratch test critical load increases (+ 46%) thanks to chemical bonding. Additional tests are presented including heat treatments (at 85 °C before and after silanization). If HF-etching is followed by phosphoric acid treatment and drying of silane at 85 °C, scratch test critical load increases (+ 42%) due to mechanical bonding. Similar adhesion properties are obtained with two opposite protocols.&nbsp;</p> Journal of Dental Problems and Solutions - Peertechz Publications 2022-10-18 Research Article https://doi.org/10.17352/2394-8418.000115 en Copyright © A Poulon-Quintin et al.