Define mechanism of rotary instrument fracture, Biology

Assignment Help:

Define Mechanism of Rotary Instrument Fracture - Cyclic Fatigue

Occurs unexpectedly and without any visible signs of plastic deformation o An instrument rotating freely in a curved canal is subjected to compression and elongation (tension) simultaneously, resulting in work hardening and metal fatigue lead to fracture

NOTE: During manufacture the machine of grinding can cause minute crack that is not visible to the eye... but I can see it under the microscope. This crack when insert it into curved canal but not tight canal .. with rotation movement there is repeated compression and tension eventually well lead to fracture of the file .. even if the file is new ( 1st use)

 


Related Discussions:- Define mechanism of rotary instrument fracture

Benefits of high-throughput expression , What are the benefits of high-thro...

What are the benefits of high-throughput expression analysis in molecular biological investigations? Ans) These methods permits simultaneous analysis of the expression of a lot

How the age of a tree can be estimated, How the age of a tree can be estima...

How the age of a tree can be estimated from the analysis of the rings present on a cross section of its stem? For the growth of the tree it is essential to have formation of ne

Three phases into which the cell respiration is divided, What are the three...

What are the three phases into which the cell respiration is divided? The three phases of aerobic cell respiration are glycolysis, Krebs cycle and respiratory chain (also calle

An a=t mispairing leads to an a=c substitution, An A=T mispairing leads to ...

An A=T mispairing leads to an A=C substitution. The other DNA helix will contain a(n) __ pair. a. A=C b. A=T c. G=C d. B=Q e. T=T Can you also explain it please so if I'm ask

Define oven - nutritional biochemistry, Define Oven - Nutritional Biochemis...

Define Oven - Nutritional Biochemistry? Oven is a general term used to describe a chamber or enclosed compartment for heating, baking, or roasting food, as in a stove, or for f

What are immunoglobulins, Q. What are immunoglobulins? Immunoglobulin i...

Q. What are immunoglobulins? Immunoglobulin is the alternate name given to antibody and Immunoglobulins are complex proteins containing a variable portion and an invariable por

How can brain research improve the treatment of pain, How can brain researc...

How can brain research improve the treatment of pain? Despite recent advances in understanding how brain processes and responds to pain, experts say pain continues to be grossl

Explain the cardiovascular effects, Explain the Cardiovascular Effects? ...

Explain the Cardiovascular Effects? You must have heard of the 'French Paradox'. The lower incidence of heart attacks in certain areas of France despite higher prevalence of fa

Explain the bioavailability of nutrients, Explain the Bioavailability of nu...

Explain the Bioavailability of nutrients? The amount of many nutrients needed in the diet depends on the absorption or bioavailability of the nutrients. Bioavailability is defi

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