Marginal fit of cast titanium copings related to investments and casting techniques

Resumo

The purpose of tbis study was to evaluate marginal tit of cast titanium copíngs accordíng to the following conditiotis: 7) three ínvestment types (Rematitan Plus, Rematítan Ultra and Ticoat 5+L Meniredi), 2) use of a "dol!" made up with the thtee ínvestments and the ring filling with conventional phosphate investment; 3) use oi die reiief; 4) sutiece treatment (sandblasting wíth glassbeads, aJuminum oxide, and drilling). Casting was made using appropriate equipment for títanium aFoys (F./.{ijvJanfredi),The results obteined led us.to cone/ude that . it is possíble to obtain titsnium casts with satisfactory marginal fit using adequate techníques; Rematitan ínvestments led to good results, although they may not be used without die reliet, especially when lhe cover techniqueis employed; Ticoat 5+L was the least criticaI regarding casting techníques, but requires dril/ing to obtain good fit.