Affiliation: | 1. Department of Conservative Dentistry, Section of Periodontology, Clinic for Oral, Dental and Maxillofacial Diseases, University Hospital Heidelberg, Heidelberg, Germany;2. Institute of Medical Biometry and Informatics (IMBI), University Hospital Heidelberg, Heidelberg, Germany;3. Private Practice, Oldenburg, Germany;4. Private Practice, Bielefeld, Germany;5. Private Practice, München, Germany |