Ceramics Used As Biomaterials

Metals polymers ceramics and composites.

Ceramics used as biomaterials.

Bioceramics range in biocompatibility from the ceramic oxides which are inert in the body to the other extreme of resorbable materials which are eventually replaced by the body after they have assisted repair bioceramics are used in many types of medical procedures. But they are also interesting for a large number of other applications in the dental and bone reconstruction fields in particular. Hydroxyapatite can chemically bond rapidly with bone due to chemical similarities and was first used in the 70 s before being accepted as an implant material in north america in 1988. Bioceramics are an important subset of biomaterials.

These material properties are utilized to produce number of commercial and domestic products such as pottery bricks advanced functional items etc. Ceramic materials can be identified by their general properties like high hardness brittleness chemical stability and low thermal conductivity. Types of biomaterials ref 1 most synthetic biomaterials used for implants are common materials familiar to the average materials engineer or scientist table 1. Table 1 examples of medical and dental materials and their.

Bioceramics and bioglasses are ceramic materials that are biocompatible. Particular interest is paid to bioceramics calcium phosphates and hydroxyapatite which are the leading biomaterials. Indeed the wide variety of these materials in terms of composition. Plaster of paris which is made of calcium sulphate hemihydrate caso4 h2o is also used in radiotherapy to make immobilization casts for patients and in dentistry for modeling of oral tissues.

Advanced ceramics and traditional ceramics are the main categories of ceramic materials. Ceramics have been used as biomaterials for millennia. Ceramic biomaterials bioceramics the class of ceramics used for repair and replacement of diseased and damaged parts of the musculoskeletal system are referr slideshare uses cookies to improve functionality and performance and to provide you with relevant advertising. These biomaterials are grouped into bioinert ceramics as alumina and zirconia bioactive glasses and glass ceramics and bioresorbable calcium phosphates based materials.

Only within the last 50 years have medical ceramics been incorporated into load bearing applications. In gen eral these materials can be divided into the fol lowing categories. These are the materials that degrade in the body while being replaced with regenerating tissues 2 hydroxyapatite ca 10 po 4 6 oh 2.