10 Dental prosthesis being prosthetic instruments for dental purposes; prosthetic instruments for dental purposes, namely, dental crowns, dental inlays, dental onlays, implant abutments for dental purposes, implant bridges for dental purposes, dental implants, dentures, orthotics for dental purposes, sleep appliances, namely, dental devise for the treatment of obstructive sleep apnea, teeth aligners, and dental supplies namely orthodontic aligners being orthodontic appliances; custom manufactured prosthetic instruments for dental purposes