Dr. Quast has obtained advanced training in the treatment planning implementation of orthognathic jaw surgery used to correct jaw/bite imbalance and deformity. Dr. Quast has utilized "4 FACES" technology in the preparation and planning of complex two jaw surgical procedure helping to ensure that they are accurately and precisely achieved by the orthodontist-oral surgeon/surgical team. Dr. Quast is intimately involved with the obtaining of pre-surgical records, architectural planning of the case and splint fabrication for the procedure to be carried out by the oral surgeon in the OR.