[Marginal fit changes in implant-supported prosthetic bars by electroerosive processing].

The aim of the study was to evaluate the marginal fit changes in implant supported prosthetic bars by electroerosive processing. The experimental model included 9 bars supported by 2, 4 and 6 implant analogues (3 bars for each number of supports). Marginal gap size was assessed by digital microscopy before and after electroerosive processing conducted in 3 stages (10, 8 and 5 minutes long). Electroerosive processing proved to be useful tool for marginal fit correction.

[Study of physical-mechanic characteristics of prosthetic construction after their adjustment with the use of laser welding and hot metal adding].

Study of physical-mechanic characteristics of connecting joints of beam construction after laser welding and hot metal adding was performed. Increase of microhardness of joints as well as small reduction of bending strength of prosthetic constructions was established.

[Effectiveness of adjustment of bar constructions on implants by hydrogen and laser welding, metal soldering and electroerosive processing].

Marginal fit of bar constructions on dental implants was revealed. It's investigated success of correction with soldering, laser welding, "cast to" method and spark erosion.