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

Risk analysis - in-vitro studies, In-vitro studies Mechanistic  data mi...

In-vitro studies Mechanistic  data might be  supplemented by  data  from in-vitro  studies, like  as information on genotoxicity derived from reversion assays or other same ass

Types of fats, FATS ARE OF TWO TYPES (a) Hard Fats They are t...

FATS ARE OF TWO TYPES (a) Hard Fats They are true fats which are solid at room temperature of 20 o C. It is due to presence of long chain saturated fatty acid

What is difference between the beta and the alpha-protien, Q. What is the d...

Q. What is the difference between the beta-sheet and the alpha-helix protein conformations? Beta-sheet and Alpha-helix conformations are the two main types of secondary structu

Incomplete dominance (1:2:1), INCOMPLETE DOMINANCE (1:2:1) Sometimes tw...

INCOMPLETE DOMINANCE (1:2:1) Sometimes two genes of allelomorphic pair do not show dominant-recessive relationship, but when present simultaneously (or come together), they sho

Treatment and management of hypertension, Q. Treatment and Management of Hy...

Q. Treatment and Management of Hypertension? The first choice of treatment and management of primary hypertension is through behaviour modifications pertaining to food choices

Defective extra-preputial protrusion of the penis, Defective extra-preputia...

Defective extra-preputial protrusion of the penis This defect is a result of hypoplasia or a defective penile erection due to a congenital mucosal fold – the frenulum - betwee

Fever, Fever influenza

Fever influenza

Central carbons participate in the peptide bond, Q. Do the -H groups bound ...

Q. Do the -H groups bound to the central carbons participate in the peptide bond? The central carbons themselves, the -R groups and the hydrogen attached to the central carbons

Define parts of coenzymes, As coenzymes participate in a variety of functio...

As coenzymes participate in a variety of functions, they can be classified broadly into two groups: i)  Hydrogen transferring  coenzymes, and ii)  Group transferring coenzym

How have brain-imaging methods such as pet and mri, How have brain-imaging ...

How have brain-imaging methods such as PET and MRI affected neuroscience research and clinical care? Techniques which capture pictures of the living human brain at work have be

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