Erratum to: Clin Oral Invest (2007) DOI 10.1007/s00784-006-0095-7
The conflict of interest statement was missing from the original publication.
Conflict of interest statement
All authors declare that they have no conflict of interest. Prof. J.-F. Roulet is Director of R&D clinical; Dr. S. Heintze is Head of the in vitro Laboratory; Ivoclar Vivadent, Bendererstr. 2 Fl-9494 Schaan. Dr. R. Randall is Technical Manager of 3MESPE Dental, St. Paul, MN, USA. By publication they DO NOT have any benefits or other advantages.
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