Histometric analysis and topographic characterization of cp Ti implants with surfaces modified by laser with and without silica deposition

Abstract

Biologic behavior of the bone tissue around implants with four different surfaces was evaluated. The surfaces were: modified by laser (LS); modified by laser with sodium silicate deposition (SS); and commercially available surfaces modified by acid etching (AS) and machined surface (MS). Topographic characterization of the surfaces was performed by scanning electron microscopy (SEM)- energy dispersive X-ray spectrometry (EDX) before experimental surgery. Thirty rabbits received 60 implants in their right and left tibias, 1 implant of each surface being placed in each tibia. The analyzed periods were 4, 8, and 12 weeks postoperatively. Histometric analysis was performed evaluating bone interface contact (BIC) and bone area (BA). The results obtained were submitted to the analysis of variance and the Tukey t-test. The elemental mapping was evaluated by means of SEM at 4 weeks postoperatively. The topographic characterization showed differences between the analyzed surfaces. Generally, the BIC and BA of LS and SS implants were statistically higher than those of AS and MS in most of the analyzed periods. Elemental mapping showed high peaks of calcium and phosphorous in all groups. Based on the present methodology, it may be concluded that experimental modifications LS and SS accelerated the stages of the bone tissue repair process around the implants, providing the highest degree of osseointegration.

Hydrophilic surface of Ti6Al4V‐ELI alloy improves the early bone apposition of sheep tibia

“…Specifically, the BA values were calculated by dividing the area of bone tissue present by the total tissue volume present in the ROI (Souza et al. ). One single and experienced observer has performed the descriptive histologic and histomorphometric evaluation.…”

“…The region of interest (ROI) and BIC and BA calculations were conducted among the three most coronally situated threads that were located in the cancellous bone on each size of the implant. Specifically, the BA values were calculated by dividing the area of bone tissue present by the total tissue volume present in the ROI (Souza et al 2014). One single and experienced observer has performed the descriptive histologic and histomorphometric evaluation.…”

The Surface Anodization of Titanium Dental Implants Improves Blood Clot Formation Followed by Osseointegration

“…Both in vitro [38,39] and in vivo studies [40,41] reported a positive correlation between fibrin adhesion and surface wettability. Fibrin adhesion is influenced by different parameters: Blood drop extension, gravity of the drop, liquid characteristics, and thermodynamics aspects [42].…”

In vivo evaluation of cp Ti implants with modified surfaces by laser beam with and without hydroxyapatite chemical deposition and without and with thermal treatment: topographic characterization and histomorphometric analysis in rabbits

“…Topographic properties and physicochemical surface of the implants are essential in the early stages of osseointegration, as they are responsible for the biological responses of biomaterials [6][7][8][9][10][11][12]. Accelerated bone formation and bone resistance can provide better implant stability during the bone healing process allowing faster implant placement and prosthetic rehabilitation [13].…”

“…Another surface modification employed to accelerate implant osseointegration and favoring bone tissue interaction is surface coated with ceramic Ca-P [12,[27][28][29][30]. The Ca-P is released in the peri-implant region increasing the saturation of body fluid with consequent biological apatite precipitation on the implant surface.…”