7th Scientific Congress of the DGAO for Aligner Orthodontics

Margit Pichelmayer, Graz (Austria)

Margit Pichelmayer
  • Degree in medicine at the Karl-Franzens-University Graz, Austria (1981 - 1989)
  • Training course to become a specialist physician in dentistry, oral and maxillofacial surgery at the University Hospital for Dentistry, Oral Medicine and Orthodontics in Graz (1992-1994)
  • since 1996: Assistant doctor at the University Clinic for Dentistry, Oral and Orthodontics Graz (Department of Orthodontics)
  • since 2002: Ass. Prof. in the same department
  • 2007-2015: Head of the Department of Orthodontics
  • Member of the board (for Orthodontics) of the Austrian Cleft Palate Craniofacial Association
  • since 2015: Deputy Head of the Board of the Department for Oral Surgery and Orthodontics

Printed vs. foil fabricated aligner - an in vitro study

The adjustment of teeth using aligners is a popular trend. Up to now, these plastic parts were manufactured using thermoforming processes. Through the development of a new plastic, it is now possible to produce 3D printed aligners.

The range of commercially available biocompatible resins for the production of medical articles by stereolithography is very much limited due to the excessive brittleness of photopolymers. The biocompatible resin system researched within the scope of the interdisciplinary cooperation between the University Hospital for Dentistry and the University of Leoben, Austria offers unique ductility and elasticity in the cured state and is therefore ideally suited for direct production of transparent dental splints with 3D printing.

Using a single tooth deflection on a plaster model, 3D printed aligners together with Duran and Essix foils were measured and compared in-vitro.

SATURDAY, March 6th, 2021, 1.40 - 1.50 pm