The procedure ín the constructíon of a fixed brídged has always been long, dífficult
and tedíous" New equípament and materiais has appered to facílítate this procedure,
however a question sti!! remains: conciliate techniques and materiais with an suitab!e
cost-benefit In thís way, lhe aím of this study was: evaluated 3 impressíon techiniques
(unitary tray, double impression and simultaneous impression ) using addition and
condensatíon sílícon materiais ( Express, 3M and Optosii/Xantopren )" Over a
comparative mensuraments from complet arch model cast, we could conclude:
consídering the techniques, the unítary tray technique had better results: the 3M
material (condensatíon) showed statístically the most satisfactory results when the
unitary tray was used.
