Classify biomaterials and list some examples, Biology

Assignment Help:

Q. Classify biomaterials and list some examples?

Biologic classification is based on tissue response and systemic toxicity effects of the implant and is divided into three classes of biomaterials:
Biotolerant, bioinert, and bioactive

Biotolerant: such as PMMA are characterized by a thin fibrous tissue interface. The fibrous tissue layer develops as a result of the chemical products from leaching processes, leading to irritation of the surrounding tissues. Bioinert materials such as titanium, titanium alloys and alumina (Al2O3) are nearly chemically inert in the body and exhibit minimal chemical interaction with adjacent tissue. Tissue attachment with inert materials is through tissue growth into surface irregularities, by bone cement, or by press fitting into a defect.

Bioactive materials: Certain glasses, ceramics, and glass-ceramics that contain oxides of silicon, sodium, calcium, and phosphorus (SiO2, Na2O, CaO, and P2O5 ) form a chemical bond with bone, resulting in a strong mechanical implant/ bone bond. These materials are bond to bone (and in some cases to soft tissue) through a time-dependent, kinetic modification of the surface triggered by their implantation within living bone.


Related Discussions:- Classify biomaterials and list some examples

Define basic function of secretin in the digestive process, Q. Where is it ...

Q. Where is it produced and what is the function of secretin in the digestive process? Secretin is made in the duodenum the chyme acidity causes the duodenum to release this ho

Explain the confirmed test - most probable number test, Explain the Confirm...

Explain the Confirmed Test - Most Probable Number Test? Confirmed test is carried out to rule out the possibility of any positive presumptive test because of the presence of no

Diabetic foot are impaired blood supply to foot, Diabetic foot are impaired...

Diabetic foot are impaired blood supply to foot Diabetic foot are impaired blood supply to foot i.e. vasculopathy. This leads to ischaemia which in turn leads to delayed or non

O-linked oligosaccharides , Most proteins made by ribosomes on the RER (rou...

Most proteins made by ribosomes on the RER (rough endoplasmic reticulum) are glycoproteins, which is they hold short chains of carbohydrates (oligosaccharides) covalently related t

Explain about the forces acting on a gravity retaining wall, Explain about ...

Explain about the forces acting on a gravity retaining wall. Forces Acting on a Gravity Retaining Wall: In a general way the forces that act on a gravity retaining wall. The

Difference between open system and closed system, DIFFERENCE BETWEEN OPEN S...

DIFFERENCE BETWEEN OPEN SYSTEM AND CLOSED SYSTEM - S .No. C h arac t er O p en system C losed system

Genetics and molecular biology into the darwinism, How does the synthetic t...

How does the synthetic theory of evolution incorporate knowledge from Genetics and Molecular Biology into the darwinism? Today it is known as that variation of inherited charac

Access burs through the crown-endodontics principles, Access burs through t...

Access burs through the crown:    Carbide fissure burs : cut through metal ( amalgam alloy or cast metal ) or composite resin.    Porcelain fused to metal : -A round diam

Do the arteries that carry blood from the heart to the lungs, Do the arteri...

Do the arteries that carry blood from the heart to the lungs have arterial or venous blood? What happens to the blood when it passes through the lungs? Arteries of the pulmonar

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd