Dentures; Artificial teeth; Medical apparatus and instruments for use in surgery; Medical instruments for intraluminal emplacement of stents or of synthetic stent grafts, namely, stent or synthetic stent graft delivery systems; Orthodontic appliances; Pins for artificial teeth; Surgical apparatus and instruments for dental use; Surgical apparatus and instruments for medical, dental or veterinary use; Suture materials; Teeth protectors for dental purposes