Shear Bond Strength of Dental Self – Adhesive Resin Cements
نویسنده
چکیده
The continuous technological advance and increasing availability of new dental self adhesive resin cement in the market, coupled to the demands of daily clinical practice, have made the determine mechanical properties. This study evaluated the shear bond strength of ceramics cemented by three different dental self-adhesive resin cements. Shear bond strength was measured with an Instron servo hydraulic testing machine by applying parallel shear forces to the specimens until fracture. Special tools were made for testing cylinder specimens (10 mm high; 3 mm diameter). In the paper, we explain the testing, measuring and calculative techniques. The results showed that etching with 4.9% HF acid is most effective for Variolink II cement (31.19±8.66), whereas sandblasting with Al2O3 particles of IPS e.max ceramic specimens obtained results in favour of Relyx Unicem (35.14±5.91) and Panavia F (25.56±5.21) cements.
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