FPD, CD, RPD Flashcards
Finish line of onlay
0.5- 1mm
Full crown preparation
2-5* taper of convergence towards the occlusal
Occlusal reduction of 3 quarter crown
1.5-2mm
PFMC labial tooth reduction
1.75-2mm
PFMC
shoulder
Metal
Chamfer
3 most common material used impression materials
Polysulfide
Silicone
Hydrocolloids
Hydrocolloid tray material
115-118*F
4 temporary restorations material
- Zoe cement
- Soft metal crowns
- Polycarbonate preformed crowns
- Autocuring acrylic resin
inlat preparation when the time interval will be brief. use & soothing to the pulp but it fractures easily & contrainidicated for large preparations
ZOE cement
Most versatile material used
Autocuring acrylic resin
not stable . exhibit syneresis & imbibition
Hydrocolloid
More stable than hydrocolloid
Polysulfide
Silicone Rubber base
Tx, for making cast restorations
Lost Wax Technique
HOC facial surface of posterior teeth
Gingival 1/3
Hygroscopic
Water
Thermal
Heat
Setting
Air
Spruing
Crucible Former
Serves as chushon inside the ring to allow expansion of the investmenr & allow easier removal of the investment & the restoration after casting is completed
Asbestos
mixing of the precombustion zone zone next to the end of the torch . It is cool
Colorless zone
Greenish blue in color
Combustion zone
Highest temp. & prevent the formation of the oxides in the casting
Reducing Zone - Blue
NOT used in heating the gold
Oxidizing zone