A three unit porcelain fused to metal<unk> (PFM) made by a dental technician. lingual buttons extending, in the photo, upward on #2 (on the left) and downward on #4. These are used to grasp the crowns with a hemostat and make them easier to handle. They can also be used to aid in removal of the crown in case there is an excessive amount of retention during the try-in. They are cut off prior to final cementation. The proximal surfaces of the pre-solder index abutment and pontic, showing lab-processed grooves for added retention of the acrylic resin The abutment and pontic joined with acrylic resin in a solder index and reinforced with an old bur (lying horizontally across the occlusal surface of the copings). A<unk> is a fixed dental restoration (a fixed dental prosthesis) used to replace one or more missing teeth by joining an artificial tooth definitively to adjacent teeth or dental implants.
Bridge 
Caul
Crown 
Wart
Veneer 
Flap 
Xilloc
Boil