text: Bioceramics properties of being anticorrosive, biocompatible, and aesthetic make them quite suitable for medical usage. Zirconia ceramic has bioinertness and noncytotoxicity. Carbon is another alternative with similar mechanical properties to bone, and it also features blood compatibility, no tissue reaction, and non-toxicity to cells. Bioinert ceramics do not exhibit bonding with the bone, known as osseointegration. However, bioactivity of bioinert ceramics can be achieved by forming composites with bioactive ceramics. Bioactive ceramics, including bioglasses must be non-toxic, and form a bond with bone. In bone repair applications, i.e. scaffolds for bone regeneration, the solubility of bioceramics is an important parameter, and the slow dissolution rate of most bioceramics relative to bone growth rates remains a challenge in their remedial usage. Unsurprisingly, much focus is placed on improving dissolution characteristics of bioceramics while maintaining or improving their mechanical properties. Glass ceramics elicit osteoinductive properties, with higher dissolution rates relative to crystalline materials, while crystalline calcium phosphate ceramics also exhibit non-toxicity to tissues and bioresorption. The ceramic particulate reinforcement has led to the choice of more materials for implant applications that include ceramic/ceramic, ceramic/polymer, and ceramic/metal composites. Among these composites ceramic/polymer composites have been found to release toxic elements into the surrounding tissues. Metals face corrosion related problems, and ceramic coatings on metallic implants degrade over time during lengthy applications. Ceramic/ceramic composites enjoy superiority due to similarity to bone minerals, exhibiting biocompatibility and a readiness to be shaped. The biological activity of bioceramics has to be considered under various in vitro and in vivo' studies. Performance needs must be considered in accordance with the particular site of implantation.