Progressive Aligners

Aligners for the seasoned ortho practitioner!

Dr. Collins Harrell along with Dr. Don McGann (POS Founder) designed Progressive Aligners to be a detailed instruction manual for how to be successful on your aligner cases regardless of what clear aligner system you use. This 2-day accelerated course eliminates the basics and focuses on more precise techniques to improve clear aligner treatment. This class benefits doctors who have experience treating traditional orthodontic cases. This class is also great for graduates of the Aligner+ series.


  • How to use Progressive Orthodontic Simulation App in Meditlink to diagnose, treatment plan and design an aligner case
  • How to submit a case to Progressive Aligners
  • How to communicate with the designer and review the aligner set-up
  • Optimizing the aligner set-up, best practices
  • Understand all the features and protocols used by Progressive Aligners
  • Step by Step walk through of a Progressive Aligner case
  • Aligners vs Straight Wire: When do I need Brackets?
  • Aligner Mechanics Simplified
    • Detailed explanation of methods of Cl II correction, Cl III correction, Vertical Correction, Transverse Correction, etc.
  • Attachments/Auxiliaries – when and why are they used with Aligners
  • Following Aligner treatment plans – What to look for and what to do at each appointment
  • What to do when teeth are not tracking with the aligners
  • Common problems with aligners and how to overcome them
  • When, why and how to request a revision
  • Finishing Aligner cases, posterior open bite, black triangles, over-corrections
  • Aligner retention protocols
  • How to use coaching, consulting and mentoring for success on all your Aligner Cases
Instructors: Dr. Collins Harrell, Dr. Brian Liao, Dr. Joe Viviano





    • 1991-1995: Undergraduate Studies at UC San Diego and University of Utah
    • 1992-1994: Missionary service for the Church of Jesus Christ of Latter-Day Saints in Rosario, Argentina.
    • 1996-2000: Oregon Health Sciences University Portland, OR DMD Dental Degree – Graduated with Honors


    • 2007-2009: Progressive Orthodontic Seminars Certificate
    • 2023: POS Head Instructor

Curriculum Contributors:

Donald McGann

    • Dental Degree—University of the Pacific Dental School with OKU Honors


    • Founder and President of Progressive Orthodontic Seminars and Progressive Dental Supply
    • Inventor the IP Appliance®, IPSoft™ Orthodontic Diagnostic Software, Neet Springs, Bracket Delivery Set, Lateral Retractors, Occlusal Retractors, Flexi Bonding Retractors, and the Individualized Growth Prediction Software
    • Published in the Journal of Clinical Orthodontics, Asian Dentist, and GP Ortho News


  • 2024:
  • San Jose: June 1-2, Dr. Fawaz Habib
  • Orange County, CA: July 27-28, Dr. Collins Harrell
  • New York, NY: June 29-30, Dr. Brian Liao
  • Houston, TX: Aug. 25-26, Dr. Joe Viviano?
  • Melbourne, Australia: June 29-30 (Dr. Charlie Kahwagi)


Doctors: $950 DA's: $600 Early registration $50 off