Analise da adaptação de estruturas de proteses sobre implantes pre-fabricadas ou fundidas em titanio, antes e apos soldagem a laser

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

The passivi fit for prostheses supported by implants is basic condition for its success. The present study evaluated the adaptation from the interface implant/abutment (UCLA) throw three different techniques: laser welding (group 1), one-piece-casting (group 2) and casting and laser welding (group 3). Each specimen had three abutments jointed by two bars. It was used 60 abutments (UCLA), 30 in machined Ti c.p. and 30 machined in plastic. Also were used 40 bars with 2mm of diameter, 20 machined in Ti c.p. and 20 machined in plastic. Group 1 used the pieces machined in Ti c.p., which were only laser welded. Group 2 had the pieces machined in plastic, which were made in one-piece casting. Group 2 afterwards was cute and was called group 3, than was laser welded. All groups were measured for adaptation, before and after the procedures to obtain the structures, by each technique. The results show that group 1 is statistically superior in adaptation, at first (0.000µm) and at last (9.931µm), in relation to group 2(9.568µm e 101.722µm) and 3 (20.258µm e 31.440µm). Group 3 shows a significant improvement in relation to group 2. It was not found any difference of adaptation between each abutment, in each group, or at any time.

ASSUNTO(S)

protese dentaria fundição dentaria lasers implantes dentarios endoosseos

ACESSO AO ARTIGO

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