The Leader in Plasma-Sprayed Coatings and Surface Treatments. Specializing in HA, TPS and RBM surface treatment: With over 17 years of clinical experience, Orchid Bio-Coat has established itself as a world leader in the applications of plasma-sprayed coatings and implant surface treatments. Bio-Coat has built its reputation by servicing both the dental and orthopedic industries with an emphasis on superior quality and on-time deliveries. Through communication with our customers and suppliers, we will continue to develop value-added innovative technologies and services.