Osseointegration of KrF laser hydroxylapatite films on Ti6Al4V alloy by mini-pigs -: loaded osseointegration of dental implants.

Aim of study was to evaluate osseointegration of the KrF laser hydroxylapatite coated titanium alloy Ti6Al4V dental implants. For deposition KrF excimer laser in stainless-steel deposition chamber was used. Thickness of HA films were round 1 mu m. Mini-pigs were used in this investigation. Implants were placed vertically into the lower jaw. After 14 weeks unloaded osseointegration the metal ceramic crowns were inserted. The experimental animals were sacrificed (1 year post insertion). The vertical position of implants was controlled with a radiograph. Microscopical sections were cut and ground. Sections were viewed using microscope with CCD camera. 1- year osseointegration in lower jaw confirmed by all implants presence of newly formed bone around the all implants. Laser-deposited coating the layer of fibrous connective tissue was seen only seldom, in the control group (titanium implant without cover) the fibrous connective tissue was seen between implant and newly formed bone.