Erratum to: Clin Oral Invest

DOI 10.1007/s00784-016-1753-z

The originally published article contains a wrong Fig. 1. The correct Fig. 1 is provided here:

There is also a change in the affiliations of Yiqun Wu and Duohong Zou which is reflected here.

Fig. 1
figure 1

Clinical view of a maxilla with a combination of three regular implants and one zygomatic implant supported bar overdenture (ad RPD with bar attachment)