Abstract
The present study examined the in vitro and in vivo bone formation and adhesion ability on the surface of a titanium dental implant made by plasma electrolytic oxidation (PEO) in electrolytes containing bioactive ions. To achieve this goal, screw-shaped fabricated Ti-6Al-4V alloy implants were processed via PEO using an electrolyte solution containing calcium (Ca), phosphorous (P), magnesium (Mg), zinc (Zn), strontium (Sr), silicon (Si), and manganese (Mn) species. The screw implants doped with bioactive elements via PEO were placed in rabbit tibia, and the results were compared to the sand-blasted Ti-6Al-4V alloy implants. At eight-week post-surgery, there was no significant difference in the values of removal torque between sand-blasted and PEO-treated implants. However, it was observed that the PEO treatment of dental implants led to the formation of more periphery bone as compared to the case of sand-blasted implants. Accordingly, the PEO-treated implants have the potential to be used as promising materials for dental applications.
Highlights
Titanium-based materials have been considered as promising metallic implants owing to their high strength/density ratios and low corrosion rate, favorably meeting the majority of the fundamental aspects in the development of metallic biomaterials [1,2,3]
Bone adhesion is necessary for the safety and long-term success of the implants, and the degree of new bone formation around the implant is considered to be very important in the prognosis
Ti64/7and ion these active seven ions will provide the active surface where the distant osteogenesis implants were successfully inserted into the tibia of rabbits
Summary
Titanium-based materials have been considered as promising metallic implants owing to their high strength/density ratios and low corrosion rate, favorably meeting the majority of the fundamental aspects in the development of metallic biomaterials [1,2,3]. The implant with a low elastic modulus share would load with the bone to promote bone growth [4,5]. Plasma electrolytic oxidation (PEO) has been suggested by many research groups to overcome the aforementioned drawbacks [11]. Porous titanium oxide (TiO2 ) coating made on Ti and its alloys via PEO in aqueous electrolytes has been reported to have acceptable mechanical properties and osteogenic ability [12,13]. The osteointegration of Ti-based materials can be significantly enhanced through the decoration of their surfaces with nanoscale coatings [14]
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