Bonding to enamel/dentin etched with phosphoric and hydrofluoric acids
Barghi, N.; Covington, K.; Fischer, D.E.; Herbold, E.T.
Practical Procedures and Aesthetic Dentistry Ppad 16(9): 653-659
2004
ISSN/ISBN: 1534-6846 PMID: 15597529 Document Number: 574742
Repairing porcelain intraorally allows clinicians to provide their patients with a conservative means of treating fractured or debonded restorations. This requires, however, the etching of both porcelain and tooth structure with etching solutions. It is thus relevant to understand the effect that different etching procedures have on shear bond strengths of composite resins to both dentin and enamel structures. Based on the results of this investigation, the authors recommend isolation of tooth structures and the etching of porcelain with hydrofluoric acid.