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Explain about Bioactive materials
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 do bond to bone through a time-dependent, kinetic modification of the surface triggered by their implantation within living bone. An ion-exchange reaction between the bioactive implant and surrounding body fluids results in the formation of a biologically active calcium phosphate layer on the implant. This layer is chemically and crystallographically equivalent to the mineral phase in bone which is responsible for the strong interfacial bonding.
Functions of Endosperm The tissue of young endosperm is rich in food materials and various growth hormones. It regulates the precise mode of embryo development and nourishes
Syphilis and HIV Most clinicians treat HIV-infected patients with syphilis and normal CSF with standard penicillin doses for the stage of syphilis, but some patients may need
What is Glands? The central nervous system controls much of the endocrine system through the hypothalamus. The hypothalamus directs many of the body's functions through the "ma
Disaccharides can be understood as follows 1.Sugars made up of the two monosaccharides held together by the covalent bond; like sucrose and lactose . 2. Type of sugar (sacch
Disorder of Platelets - Purpura Purpuras are bleeding disorders characterised by petechiae and ecchymosis which may be due to deficiency in either, the number or quality of
Explain the eligibility of Cardiac rehabilitation ? Cardiac rehabilitation services are prescribed for patients who: 1) Have had a myocardial infarction. 2) Have had coronary b
Q. What is Atherosclerosis? Atherosclerosis is an arterial lesion characterized by patchy thickening of the intima (innermost coal of artery) comprising of fat and layers of co
Hydropericardium syndrome Hydropericardium syndrome (HPS), known as Leechi disease, is caused by Avian Adenovirus 4. HPS has been responsible for high mortality ranging from 6
Open Type of Circulatory Systems Several non-chordates have thus an open type of circulation - a system in which blood pumped by the heart empties through an artery into an op
Phimosis Phimosis may be congenital or acquired. The foreskin in young infants cannot be retracted, because at that gge it is adherent to the underlying glans. Wlen an attemp
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