About the Authors

Katja Kriebel

Affiliation Katja Kriebel Department of Operative Dentistry and Periodontology, University Rostock, Rostock, Germany

Anne Biedermann

Affiliation Anne Biedermann Department of Operative Dentistry and Periodontology, University Rostock, Rostock, Germany

Bernd Kreikemeyer

Affiliation Bernd Kreikemeyer Institute of Med. Microbiology, Virology and Hygiene, University Rostock, Rostock, Germany

Hermann Lang

hermann.lang@uni-rostock.de

Affiliation Hermann Lang Department of Operative Dentistry and Periodontology, University Rostock, Rostock, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HL BK. Performed the experiments: KK AB. Analyzed the data: KK AB BK HL. Wrote the paper: KK BK HL.