Enhanced bone apposition to Brazilian microrough titanium surfaces

Abstract

It has recently been reported that machined and microrough (micro) Brazilian titanium (Ti) implants have good production standards. The aim of this study was to evaluate in vivo bone formation around 2 different implant surfaces placed in dog's mandible. Thirty-two screw-typed Ti implants were used in this study. Mandibular premolars were extracted in 8 dogs and, after 12 weeks, 2 machined (Neodent Titamax, Brazil) and 2 micro implants (Neodent Titamax Porous, Brazil) were placed in each animal. Biopsies were taken at 3 and 8 weeks post-implantation and stained with Stevenel's blue and Alizarin red for histomorphometric measurements of bone-to-implant contact (BIC), bone area between threads (BABT) and bone area within the mirror area (BAMA). Data were analyzed statistically by two-way ANOVA (alpha=0.05). While at 3 weeks micro implants exhibited significantly more BIC than machined ones (55 +/- 12.5% and 35.6 +/- 15%, p<0.05), no significant difference in such parameter was detected at 8 weeks (51.2 +/- 21% and 48.6 +/- 18.1%, p>0.05). There were no significant differences in BABT and BAMA between the implants. Micro surfaces promoted higher contact osteogenesis. These data indicate that this commercial micro Ti implant surface enhances contact osteogenesis at an early post-implantation period when compared to the machined one.

Influence of Implant Surfaces on Osseointegration: A Histomorphometric and Implant Stability Study in Rabbits

“…The surface topography of the implant is another characteristic that may interfere on the bone biological response (4,(8)(9)(10). Moderately microroughness surface have proven to be superior to smooth counterparts (8,9), improving parameters as bone-implant contact, new bone formation and removal torque (11,12).…”

“…Moderately microroughness surface have proven to be superior to smooth counterparts (8,9), improving parameters as bone-implant contact, new bone formation and removal torque (11,12). Surface chemistry is also an important characteristic for implant performance since its affects on surface energy and wettability (5,7).…”

Effect of nanocoating with rhamnogalacturonan‐I on surface properties and osteoblasts response

“…Titanium implants with microstructured surfaces have been used with success for bone anchoring of dental and orthopedic prosthesis. [1][2][3] However, in cases where bone volume at the implant site is reduced or in medically compromised patients, where bone metabolism is affected, improvement of bone healing and osseointegration is needed.…”