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Fig. 1 | Head & Face Medicine

Fig. 1

From: HF etching of CAD/CAM materials: influence of HF concentration and etching time on shear bond strength

Fig. 1

Groups for shear bond strength test. The CAD/CAM materials VM, VE, EC and VS served as substrates for the shear bond strength test. Their surfaces were pre-treated with hydrofluoric acid (HF) of different concentrations and etching times. Afterwards, the respective system primer (RXCP, VACP, CCPP, VACP) and cement (RUN, VAS, PV5, VAF) was applied and shear bond strength was measured after 24 h water storage at 37 °C (n = 10 per group)

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