Ceramics Used As Biomaterials

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.

Ceramics used as biomaterials.

Orthopedic implants hip prostheses etc are probably their most renowned application. Bioceramics and bioglasses are ceramic materials that are biocompatible. Bioceramics are an important subset of biomaterials. These biomaterials are grouped into bioinert ceramics as alumina and zirconia bioactive glasses and glass ceramics and bioresorbable calcium phosphates based materials.

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. Ceramics have been used as biomaterials for millennia. 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. 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. A review of classes of biomaterials and their applications is presented. Indeed the wide variety of these materials in terms of composition. Ceramic materials can be identified by their general properties like high hardness brittleness chemical stability and low thermal conductivity.

Bioceramic materials currently used for the repair and reconstruction of hard and soft tissues can be categorized according to composition structure and properties. These material properties are utilized to produce number of commercial and domestic products such as pottery bricks advanced functional items etc. Table 1 examples of medical and dental materials and their. These are the materials that degrade in the body while being replaced with regenerating tissues 2 hydroxyapatite ca 10 po 4 6 oh 2.

Only within the last 50 years have medical ceramics been incorporated into load bearing applications. Types of biomaterials ref 1 most synthetic biomaterials used for implants are common materials familiar to the average materials engineer or scientist table 1. Particular interest is paid to bioceramics calcium phosphates and hydroxyapatite which are the leading biomaterials.