1. Lecturer, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit, Amsterdam, Netherlands; Guest Researcher, Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, Nijmegen, Netherlands
2. Assistant Professor, Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, Nijmegen, Netherlands
3. Professor, College of Medicine and Dentistry/Ulster University, Birmingham campus, Senior Clinical Teacher, King's College London, Faculty of Dentistry, Oral and Craniofacial Sciences, Guy's Campus, London. Visiting Professor, Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, Nijmegen, Netherlands
4. Director MSc in Aesthetic Dentistry, King's College London Faculty of Dentistry, Oral and Craniofacial Sciences; Professor, University of Portsmouth Dental Academy; Associate Professor, Department of Prosthodontics, Melbourne Dental School, Australia; Private Practice, Ealing, London
5. Professor, Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry, Nijmegen, Netherlands