Passive fit of frameworks in titanium and palladium-silver alloy submitted the laser welding

Journal of Oral Rehabilitation
S A de SousaM F Mesquita

Abstract

This study evaluated the precision of fit of implant frameworks cast in titanium (cp Ti) and palladium-silver alloy (Pd-Ag), made by the one-piece cast and laser welding techniques. From a metal matrix with five implants, 20 master casts were obtained, to which replicas of implants were incorporated. On these masters 10 frameworks were made for each type of material (cp Ti and Pd-Ag alloy). Half of these were made by the one-piece cast technique and the other half by the laser welding technique. The implant/prosthesis interface was analysed and measured in the vestibular and lingual regions of the central and distal implants with the help of a measuring microscope. The results indicated that in the central cylinders, the Tukey test (P<0.0005) showed a significant difference in the passive fit between the laser-welded frameworks (34.73 microm) and those one-piece cast frameworks (151.39 microm), and as regards materials, the palladium-silver alloy (66.30 microm) showed better results than the titanium (119.83 microm). In the distal cylinders there was no significant difference between the frameworks cast in titanium and palladium-silver by the one-piece technique. However, after laser welding, there was a significant difference ...Continue Reading

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Citations

May 10, 2012·The Journal of Oral Implantology·Henrique HollwegJosé Henrique Rubo
Nov 12, 2013·The Journal of Prosthetic Dentistry·Frank S AndriessenDaniel W Wismeijer
Jul 31, 2013·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Angel AlvarezJoseba J Ellacuria
Jun 28, 2012·The Journal of Advanced Prosthodontics·Rodrigo TiossiRicardo Faria Ribeiro
Jun 20, 2013·Brazilian Dental Journal·Gabriela Cassaro de CastroMauro Antônio de Arruda Nóbilo
Nov 15, 2019·Dental Materials Journal·Takashi Sawase, Shinichiro Kuroshima
Jan 1, 2014·Journal of Nursing Management·Bronwyn HayesAnn Bonner
Nov 30, 2019·Brazilian Oral Research·Jéssica Marcela de Luna GomesEduardo Piza Pellizzer
Jul 1, 2017·Journal of Advanced Nursing·Carl-Ardy DuboisArnaud Zufferey

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