Materials for use in dentistry, namely, materials for preserving, repairing, and restoring teeth, and for crowns, bridges, and frameworks; materials and auxiliary materials for the manufacture of dental impressions, models, crowns, bridges, inlays, prostheses, and artificial teeth; porcelain for dental prostheses; materials for the characterization of teeth, namely, materials for making dental impressions and teeth restoration; dental waxes; dental filling materials; teeth filling materials, ...