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

Urine examination of the diabetes patient, Q. Urine Examination of the diab...

Q. Urine Examination of the diabetes Patient? Generally when blood testing facilities are not available, urine is tested for the presence of sugar. A urine sample shows presenc

How is hiv transmitted, How is HIV transmitted? What is the disease caused ...

How is HIV transmitted? What is the disease caused by this virus? HIV (human immunodeficiency virus) is supposed to be transmitted by blood, semen, maternal milk and vaginal se

What are the vitamins which make up the b complex, Q. What are the vitamins...

Q. What are the vitamins which make up the B complex? Which problems does the lack of these vitamins cause? Vitamins of the B complex are: vitamin B1 or thiamin, riboflavin, or

What is coevolution, What is Coevolution ? There is considerable eviden...

What is Coevolution ? There is considerable evidence that supports an interesting theory that two individual species can affect each others evolution in reciprocal fashion. In

The skin, what is vaso-constriction

what is vaso-constriction

What essential function do they serve, Why do membranes figure so prominent...

Why do membranes figure so prominently in eukaryotic cells? What essential function do they serve?

What are the cytoplasmic structures present in animal cells, Q. What are th...

Q. What are the main cytoplasmic structures present in animal cells? The main cytoplasmic structures of the cell are the centrioles, the cytoskeleton, mitochondria, peroxisomes

Population and sigmoid curve, Name two possible why the number of live bact...

Name two possible why the number of live bacteria cell have reached the stationary growth by 60hrs and start to die off after 12hrs?

How are the main classes of arthropods classified, How are the main classes...

How are the main classes of arthropods classified according to the presence of larval stage in their embryonic development? In crustaceans there are species with direct and oth

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