Analise da adaptação marginal de proteses fixas implanto-suportadas em liga de titanio, fundidas em monobloco ou submetidas a soldagem laser e eletroerosão atraves do assentamento passivo

AUTOR(ES)
DATA DE PUBLICAÇÃO

2001

RESUMO

The aim of this work was to evaluate the passive fit of fixed implant-supported prosthesis titanium ftameworks cast in one-piece and laser welded, before and after the spark erosion procedure. Twenty specimen were fabricated ITom a master model with five implants placed parallel in the inter foramen region, and cast in commercially pure titanium Ti c.p (Rematitan - Dentaurum - Pforzhein - Germany). The specimens were divided into two groups: G 1 - 10 specimen cast in one-piece and G2 - 10 specimen sectioned previously in four pieces, cast and laser welded {Desktop Laser - Dentaurum ? Pforzhein Germany).The passive fit between the UCLA abutment ftamework and the implant were evaluated before and afier the spark erosion procedure (Electrical Discharge Machining - Tel-Med Technologies - Port Huron - USA), tightening lON in the titanium screw of the, extremity implant, measuring the gaps at the central and distal implants, using a optical microscope Olympus STM (Japan) with O.OOO5mm accuracy. The results G 1 (CI 170_m e DI 472_); Gl+EDM (CI 56_ e DI 154_); G2 (CI 65_ e DI 155_); G2+EDM (CI Gl+EDM e G2+EDM, however. no statistical difference were noted in Gl+EDM e G2. 28_m e DI 59_), were submitted to statistical analyses by means oft-Student and paired t-Student test, showing differences among G 1 e G 1 +EDM, G 1 e G2, G 1 e G2+EDM, FIXED IMPLANT-SUPPORTED PROSTHESIS - LASER WELDING - SP ARK EROSION - P ASSIVE FIT

ASSUNTO(S)

lasers adaptação protese dentaria fixa

ACESSO AO ARTIGO

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