Materials for use in dentistry, namely, materials for preserving, repairing and restoring teeth and for crowns, dental bridges, frameworks, materials for the characterization of teeth, namely, materials for teeth restoration; materials for cavity treatment, namely, zirconium oxide and ceramics; precious metal alloys and non-precious metal alloys for dental use; precious metals andnon-precious metals for dental use; materials for repairing damaged teeth in the nature of dental ceramics, dental...