The effect of controlled microrobotized blasting on implant surface texturing and early osseointegration

Abstract

Surface topography modifications have become a key strategy for hastening the host-to-implant response to implantable materials. The present study evaluated the effect of three different carefully controlled surface texture patterns achieved through microrobotized blasting (controlled to high, medium and low roughness) relative to a larger scale blasting procedure (control) in early osseointegration in a canine model. Four commercially pure grade 2 titanium alloy implants (one of each surface) were bilaterally placed in the radii of six beagle dogs and allowed end points of 1 and 6 weeks in vivo. Following sacrifice, implants in bone were non-decalcified processed for bone morphologic and histometric (bone-to-implant contact; bone area fraction occupancy) evaluation. Surface topography was characterized by scanning electron microscopy and optical interferometry. Results showed initial osteogenic tissue interaction at one week and new bone in intimate contact with all implant surfaces at 6 weeks. At 1 and 6 weeks in vivo, higher bone-to-implant and bone area fraction occupancy were observed for the high texture pattern microrobotized blasted surface relative to others.

Influence of steel implant surface microtopography on soft and hard tissue integration

“…The stability and integration of implants with bone also depends upon the nature of the interface . Data regarding bone contact from this study confirmed previous observations implicating a positive correlation between increased surface micro‐roughness and bone attachment (Figures and ) . In contrast to the above mentioned studies where the implants had initial direct bone contact, the present study was not originally designed for this evaluation, but for soft tissue and capsule evaluation upon the upper plate surfaces (Figures and ).…”

“…26 Data regarding bone contact from this study confirmed previous observations implicating a positive correlation between increased surface micro-roughness and bone attachment (Figures 6 and 7). 28,43 In contrast to the above mentioned studies where the implants had initial direct bone contact, the present study was not originally designed for this evaluation, but for soft tissue and capsule evaluation upon the upper (Figures 3 and 4). Therefore the implants, not being contoured to the bone, had limited initial direct bone contact along their surface apart from at the screw surfaces ( Figure 6).…”

Tratamentos de superfícies de implantes de titânio e zircônia: Revisão de literatura

“…As alterações micro ou nanométricas sobre as superfícies dos implantes, têm sido amplamente estudadas, pois atuam acelerando o processo inicial de cicatrização óssea, levando a uma estabilidade biomecânica mais precoce. Essas alterações são importantes tanto para a diferenciação e adesão dos osteoblastos durante a fase inicial de osseointegração, quanto para a fase de remodelação óssea em um segundo momento (Gil et al, 2016;Smeets et al, 2016).…”