Bioceramics are composed of biocompatible ceramic materials and form an important subset of biomaterials. They vary in biocompatibility, from the ceramic oxides that are inert in the body, to othercomplex materials that are replaced by the body after they aid in repair.Bioceramic components are applied in the medical and dental field as implants and replacements.   Bioceramics are preferred as replacements during surgical implants procedures since its material relates closely to the human body and are composed of exceptionally long-lasting metal oxides.

One of the common components making up Bioceramic products is the pure, high-density, finely grained polycrystalline alumina. The crystalline nature of the alumni is formed when liquid aluminum is cooled to lower temperatures leading to the formation of tiny solid clusters.While in the crystalline nature, the alumni are in the FCC structure which is its lowest possible energy state in comparison to BCC or HCP (Mason). The small solid crystals are what develop turning into grains. Alumina has high wear resistance,good biocompatibility,excellent corrosion resistance, and high strength.The mechanical properties of inert alumina ceramic biomaterials are composed of a 300-400 (Gpa) bond strength, 4000 (Mpa) Compressive Strength, and a hardness ranging between 2000-3000(HV).

Alumina has a longer lifespan than a patient making it suitable for the Bioceramics. The material is applied in inner ear ossicles, catheter orifices, electrical insulation for pacemakers and ocular prostheses. Some of the bioceramic devices that use the alumni material include; the vertebrae extensors and spacers whose function is to correct a congenital defect. Another device is the alveolar bone replacing and mandibular reconstructing device.It is used to repair the alveolar ridge to correct denture fit.

Works Cited

Mason, Thomas O. BioCeramics. 07 March 2018. https://www.britannica.com/technology/bioceramics#accordion-article-history. 20 February 2019.

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