GC EUROPE G-aenial Bond - Manual (Page 32)

32 G-ænial Bond Technical Manual
8.0 Summary of technical Data
etching has proven to provide higher bond strength to enamel but has no added value for dentine,
as shown by test results. thus, etching of dentine is not recommended. however, the selective
etching approach is very safe with G-ænial Bond. test results have shown that there is no decrease
in bond strength to etched dentine; therefore, there is no adverse effect if the etchant inadvertently
reaches the dentine while etching the enamel.
using the selective etching approach, G-ænial Bond safely offers the best of both worlds: the
simplicity and reduced post-operative sensitivity of a self-etch adhesive together with the greater
bond strength to enamel that was traditionally found only with etch-and-rinse adhesives.
Self-etch technique
• Microtensile bond strength to enamel : 23.1 MPa
• Microtensile bond strength to dentine: 30.5 MPa
Selective etch technique
ten seconds etching of enamel with 37% orthophosphoric acid prior to G-ænial Bond application
• Microtensile bond strength to enamel:
34.5 MPa
Direct application to dentine
• Microtensile bond strength to dentine:
30.5 MPa
ph: 1.5