D95SDP-200 (PRO2001) Soft urethane gingivae with 32 screw-retained teeth. If you are completing impressions, buy THIS soft tissue model. The impression material will NOT adhere to the urethane tissue. Replacement teeth are guaranteed to fit identical to the teeth originally received with models making these the most predictable models on the market. Urethane gingivae (GUB) is recommended if using silicone impression materials, packing cord, etc.