Class III Malocclusion

Maxillary Expansion with TADs in Young Adults

Peter Ngan

Dr. Peter Ngan is West Virginia University Branson - Madprecl endowed Professor and Chairman, department of orthodontics, Dr. Ngan holds a Dental degree from Harvard University, and Certificates on orthodontics, Pediatric Dentistry and Hospital Dentistry from the University of Pennsylvania. Dr. Ngan is a diplomate of the American Board of orthodontics and a diplomate of the American Board of pediatric dentistry.

Lecture Description

Maxillary expansion with traditional rapid palatal expansion (RPE) appliances is limited to treatment of maxillary transverse deficiencies before the pubertal growth spurt. Treatment with tooth-borne expansion appliances also have side effects such as tipping and extrusion of anchorage teeth. The speaker will introduce the use of bone-borne Micro-implant Assisted RPE (MARPE) appliance for young adults. The current literature on the use of MARPE appliances will be reviewed and clinical cases will be used to demonstrate the effectiveness of these appliances.

Learning objective

Clinicians will know the limitations of tooth-borne expansion appliance and the application of bone-borne expansion appliance in treatment of maxillary transverse deficiency in young adults.
Clinicians will learn the clinical protocol in using Micro-implant Assisted RPE (MARPE) appliances for treatment of maxillary transverse deficiency in young adults.