Casting Of Mod Inlay Using Rings With Holes On Both Sides: 12 Similar To 18 Wt% Au-20 Similar To 26pd-14.48 Similar To 26.48cu-40ag-1.5zn-0.02ir Alloys

Using a casting ring with openings on both sides and a water-absorbent polymer, heterogeneity is maintained in a single casting and a precise MOD inlay can be produced. We produced 9 different kinds of gold-silver-palladium (Au-Ag-Pd) alloys by changing the ratio of palladium, gold, and copper and investing them, and changing parameters such as the angulation of the casting ring openings and the water: powder ratios to produce MOD inlay castings. We measured the expansion and shrinkage percentage of the castings in both the buccolingual and mesiodistal directions. From this experiment, we learned that precise MOD inlay castings can be produced using rings with 240 degrees openings when invested in a thick mix having a standard water: powder ratio or using rings with 200 degrees openings when invested in a thick mix having a water: powder ratio for a 12 wt% Au-20 similar to 26Pd-20.48 similar to 26.48Cu-40Ag-1.5Zn-0.02Ir alloyes.