Classify biomaterials and list some examples, Biology

Assignment Help:

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.Biomaterials and Osseointegration

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

Explain the plaque assessment, Plaque Assessment Microbial films have b...

Plaque Assessment Microbial films have been known to form on inert biomaterial surfaces in an aqueous environment. Implants placed in the oral cavity are no exception and repre

Explain cardiac muscle or heart muscle, Explain Cardiac Muscle or heart mus...

Explain Cardiac Muscle or heart muscle? Cardiac muscle, or heart muscle, is a striated muscle that occurs only in the vertebrate heart. The heartbeat is controlled by noncontr

What do you mean by neuronal repolarization, Q. In chemical terms how is th...

Q. In chemical terms how is the neuronal repolarization achieved? Repolarization is the return of the membrane probable from the action potential (+35 mV) to the resting potent

What is diabetes mellitus, Question 1 What is diabetes mellitus? Discuss b...

Question 1 What is diabetes mellitus? Discuss briefly its pathogenesis. Explain how would you diagnose this disorder Question 2 Discuss the following Glucose tolerance

Phylum porifera, PHYLUM  PORIFERA Definition and Introduction Low...

PHYLUM  PORIFERA Definition and Introduction Lowest  multicellular animals or metazoans without  true  tissues, i.e. , at  Cellular level or body organization. Familiar

Explain observations seen in thyphoid, Some observations seen in this fever...

Some observations seen in this fever are: 1.  Massive loss of  lean body mass or muscle due to tissue breakdown (250-500 g muscle tissue is lost/day) leading to excessive nitro

Organism to present a large intestinal surface, Q. After digestion the next...

Q. After digestion the next step is absorption done by cells of the mucous membrane of the intestine. For this task a large absorption surface is an advantage. How is it possible i

Serotonin - enhancement of memory, Q. Serotonin - Enhancement of memory? ...

Q. Serotonin - Enhancement of memory? Increased level of serotonin is implicated in the enhancement of memory. It plays a significant role in classical conditioning wherein sti

Classification of multicellular animals, Classification of Multicellular An...

Classification of Multicellular Animals The multicellular animals (Animalia) originated from the simpler protozoan protists. You know the simpler multicellular animals further

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