Materials for use in dentistry, namely, materials for the manufacture of [ dental impressions, models, ] crowns and bridges, inlays, dentures, artificial teeth; [ dental alloys; ] dental filling materials; materials for the restortion of damaged teeth; dental ceramic stratum; color stains for use in dentistry; [ precious metal alloys and non-precious metal alloys for dental technology; investment materials for use in dentistry, namely, phosphate bonded dental casting investment material; ] op...