Instructor Profiles

The faculty at the McGann Postgraduate School of Dentistry were handpicked to provide a full range of training. Students will get a strong education from a large spectrum of academic leaders in their fields. Since cosmetic dentistry should be looked at from many perspectives, we developed a multi-faceted program. Students gain the comprehensive understanding to be able to treat or manage the case efficiently for all types of esthetic cases.



Dr. Luis Segura-Mori is a leader in Implantology and Esthetic Dentistry, lecturing extensively at several national Universities and around the world, as well as authoring several scientific publications.


  • Doctor in Dental Surgery, University Complutense of Madrid.
  • PhD in Dentistry, University of Oviedo.
  • MSc in Oral Rehabilitation, University of Oviedo.
  • Postgraduate in Implant Dentistry, University Complutense of Madrid.
  • Graduated in Advanced Orthodontics, Progressive Orthodontic Seminars.
  • Certificate in Periodontal Plastic Surgery, University Complutense of Madrid.
  • Invisalign Certificate Doctor.
  • Professor of Implant Dentistry at Alcalá University of Madrid.
  • Ex-Professor of Oral Rehabilitation at University of Oviedo.
  • Private practice in Madrid, Spain.

profile-polderDr. Bart J. Polder is a popular lecturer nationally and internationally with a focus on combined orthodontic and dental implant treatments. He mainly focuses on oral implantology and orthodontics in his practice as well.


Bart J. Polder graduated with a degree in dentistry at the Radboud University Nijmegen in 1984.

Professional Info

In 1984 Dr. Polder started a private practice “Medisch Centrum de Houttuinen” as a general practitioner (with his colleague and wife G.C.G. Polder-Span) in the city of Emmeloord.

From 1996-2003 he did research on prevalence and treatment methods for dental agenesis at the department for Orthodontics and Oral Biology at the UMC Radboud Nijmegen. Dr. Polder is currently taking his doctoral degree in Nijmegen, at the Radboud University, Faculty of Dentistry, Department of Orthodontics and Craniofacial Biology (Head: Prof  Anne Marie Kuijpers-Jagtman DDS PhD). His subject is the prevalence and signs of dental agenesis as the results of the treatment of agenesis patients.

From 1989 until now he has been associated with the Department of Special Dental Care (Centrum voor Bijzondere Tandheelkunde) at the Isala Clinics Zwolle. His work here concentrates on diagnostics, coordination and treatment of patients where implantology and/ or orthodontics is indicated. The treatment of oligodontic patients plays a large role in this. Since 2002, he started the referral practice of orthodontics and implantology at Emmeloord.

Areas of particular interest

  • Orthodontics and maxillofacial orthopaedics
  • Implant dentistry
  • Dental radiology and imaging techniques
  • He frequently gives and attends lectures on these topics.

-Registered dental Implantologist (NVOI)

-Member EAO

-Member editorial board WJMA (World Journal of Meta-Analysis)

profile-danaDr. David Dana has an esthetics and orthodontics private practice in Beverly Hills since 1984. He got his training in Prosthodontics at Boston University and his DDS at Universidad Tecnologica de Mexico. As a lead­ing tenured instructor at Progressive Orthodontics, Dr. Dana has taught thousands of students since 1994 and continues to teach so that students can reach the highest levels of dentistry.


Dental Degree – Universidad Tecnologica de Mexico 1977-1981

Postgraduate Training in Prosthodontics – Boston University 1981-1983
Professional Info

Education Director for Progressive Orthodontic Seminars from 2013 to present.

Lecturer for Progressive Orthodontic Seminars from 1994 to present.

In addition to his work with Progressive, Dr. Dana has lectured in Europe, Mexico, Australia, and Latin America on restorative and cosmetic dentistry, focusing on the use of Botulin toxin in dentistry and the use of lip filler for facial aesthetics.

Dr. Flores is a Diplomate of the American Board of Periodontology, maintains a private practice in Alta Loma, California limited to periodontics, dental implants, and reconstructive periodontal surgery, Doctor Flores obtained his certificate in advanced periodontics and implant surgery from Loma Linda University School of Dentistry, Doctor Flores since his graduation in 1996 has been a part time faculty in the Advanced Program in Periodontics and Implant Surgery at Loma Linda University School of Dentistry, Dr. Flores is member of American Dental Association, California Dental Association andTri county Dental Society, Dr. Flores lectures on esthetic periodontal plastic Surgery, periodontal regeneration, soft and hard tissue augmentation.

Vahik Meserkhani

Dr. Vahik Paul Meserkhani has lectured extensively on the subject of Prosthodontics and Implant dentistry both nationally and internationally.

He graduated in 1987 and Joined Loma Linda University school of Dentistry in 2003. He received his implant surgical fellowship from Loma Linda University followed by a certificate in Prosthodontics and MSD degree in Prosthodontics specialty. He had numerous publication about Prosthodontics and implant related subjects as well as a recent study at the Loma Linda University about the accuracy of stereolithographic models. He is a Diplomate of the American Board of Oral Implantology, Fellow of the American Academy of Implant Dentistry, and Board eligible by the American College of Prosthodontics. He maintains a private practice limited to Prosthodontics and implant dentistry in Glendale, California.

profile-sunDr. Sun maintains a private practice with special interest in Esthetic & Reconstructive Dentistry and Implantology in Zurich, Switzerland. Currently he is an international lecturer in Orthodontics and Esthetic Dentistry.

Dr. Sun obtained his DDS (1987) and his PhD (1990) in Dentistry from the University of Zurich, where he held a clinical instructor position at the Department of Prosthodontics headed by Prof. Peter Schärer.

After six years (1987-1993) of postgraduate fellowships in Pediatric Dentistry, Prosthodontics & Esthetic Dentistry and Dental Materials, Oral Surgery & Implantology at the University of Zurich, Dr. Sun opened his private practice in Zurich.

In 2008 he completed the two year curriculum of Progressive Orthodontics and joined the Dental Clinic Zurich Paradeplatz as Partner for Esthetic & Reconstructive Dentistry and Implantology.

Currently Dr. Sun is lecturing internationally as instructor in Orthodontics and Esthetics Dentistry.

He is member of the “Peter Schärer” Study Club in Switzerland.