The company's principal activities are to design, fabricate, market and sell dental prosthetic appliances to dentists. the company owns and operates dental laboratories throughout the united states. the company designs and fabricates dentures, crowns, bridges and other dental prosthetic appliances. the company presently owns and operates 36 dental laboratories, consisting of 33 full-service dental laboratories and 3 branch laboratories located in 27 states throughout the united states. the products are produced by trained technicians working primarily in dental laboratories in accordance with work orders and cases provided by the dentist. the company's products are grouped into three categories: restorative products, reconstructive products and cosmetic products.