Define osseointegration and its theories, Biology

Assignment Help:

Q. Define osseointegration and its theories?

Osseointegration implies that "it is a contact established without interposition of non bony tissue between normal remodeled bone and an implant at the light microscopic level, entailing a sustained transfer and distribution of load from the implant to and within the bone tissue". Osseointegration can also be defined as "a direct structural and functional connection between ordered, living bone and the surface of a load carrying implant" Creation and maintenance of osseointegration, therefore, depends on the understanding of the tissue's healing , repair, and remodeling capacities.

Branemark's Theory of Osseointegration

Branemark proposed that implants integrate such that the bone is laid very close to the implant without any intervening connective tissue. Branemark also stated that the implant should not be loaded and left out of function during the healing period for osseous integration to occur
Weiss's Theory of Fibroosseous fixation Weiss' theory states that there is a fibro-osseous ligament formed between the implant and the bone and this ligament can be considered as equivalent to the periodontal ligament found in the gomphosis. He defends the presence of collagen fibers at the bone-implant interface. Biointegration - dePutter observed that there are two ways of implant anchorage or retention: mechanical and bioactive.

Mechanical retention refers to the metallic substrate systems such as titanium alloy. The retention is based on the undercut forms such as vents, slots, dimples, screws etc and involves direct contact between the dioxide layer on the base metal and bone with no chemical bonding. Bioactive retention is achieved with bioactive materials such as hydroxyapatite (HA), which bond directly to the bone, similar to ankylosis of natural teeth.


Related Discussions:- Define osseointegration and its theories

Climax forest - xerarch, Climax Forest - Xerarch First, some xerophyti...

Climax Forest - Xerarch First, some xerophytic species of trees, establish in this area. They are sparsely distributed and are stunted because the conditions are still not ver

What is the typical localization of the tropical forests, What is the typic...

What is the typical localization of the tropical forests regarding latitude? The Tropical rain forests, like the Congo forest and the Amazon forest, are typically located in lo

Sterilization of apparatus for microbiology experiments, Sterilization of A...

Sterilization of Apparatus for Microbiology Experiments : Containers of dangerous biological materials and the doors leading to laboratories or rooms in which work with pathogenic

Why it is important to study about soil, Why does one need to study about s...

Why does one need to study about soil and what is  its importance? You would be aware that, from the dawn of agriculture, cultivators were attracted to fertile soils of river

What are secondary roots, What are secondary roots? In origin how secondary...

What are secondary roots? In origin how secondary roots differentiate from shoots? Secondary roots are ramifications of the primary (major) root. The secondary roots emerge fro

Explain anticonvulsants and cerebral palsy, Anticonvulsants and Cerebral Pa...

Anticonvulsants and Cerebral Palsy Anticonvulsants : drugs that prevent reduce or stop convulsions or seizures. Cerebral Palsy: A group of chronic foundations affecting

Describe the nature of the polymorphism, 1. DNA damage can occur spontaneou...

1. DNA damage can occur spontaneously or be induced by external factors. Describe the types of DNA damage caused by external factors and how they are repaired in prokaryotes and eu

Phylum, morphological characterstics of e histolytica

morphological characterstics of e histolytica

Subphylum opalinata, Subphylum Opalinata Body covered with longitudin...

Subphylum Opalinata Body covered with longitudinal rows of cilium like ,organelles but true ciliature absent. Parasitic; cytosome lacking; two to many nuclei of one type.

Example of codominance, In shorthorn cattle, the coat colours red or white ...

In shorthorn cattle, the coat colours red or white are controlled by a single pair of alleles. A calf which receives the allele for red coat from its mother and the allele for whit

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