1. Prosthodontist; Private Practice; Whangarei New Zealand
2. Oral Implantology Research Group; Sir John Walsh Research Institute; Faculty of Dentistry; University of Otago; Dunedin New Zealand
3. Oral Implant Research; Colegio Odontologico; Institucion Universitaria; Colegios de Colombia; Bogota Colombia
4. Department of Oral Function and Restorative Dentistry; Section of Oral Implantology and Prosthetic Dentistry; Academic Center for Dentistry Amsterdam (ACTA); Amsterdam the Netherlands