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

Explain cell cycle , The life of a eukaryotic cell can be explained ...

The life of a eukaryotic cell can be explained as a cell cycle. Mitosis and cell division happens in the M phase that lasts for only about 1 h. This is followed by the G1 phase whe

What is osmotic diarrhoea, Q. What is Osmotic diarrhoea? This kind of d...

Q. What is Osmotic diarrhoea? This kind of diarrhoea is caused by the presence of osmotically active substances in the intestinal tract, which in turn, favour the drawing of la

Heat exchangers, Normal 0 false false false EN-IN X-N...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Korarchaeotes, what is the effect that korarchaeotes have on humans?

what is the effect that korarchaeotes have on humans?

Explain the complications of burns, Explain the Complications of Burns? ...

Explain the Complications of Burns? Most minor burns are superficial and do not cause complications. However, deep second-degree and third-degree burns swell and take more time

Acute heart failure, Ac ute heart failure The acute heart failure is c...

Ac ute heart failure The acute heart failure is characterized by sudden loss of consciousness and falling with or without convulsions. The mucous membranes become pale followe

Energy during myocardial infarction, Q. Energy during myocardial infarction...

Q. Energy during myocardial infarction? As mentioned above, patient who have recently suffered from an attack of myocardial infarction are hospitalized in the intensive cardiac

What would happen to a cell, What would happen to a cell if it was placed i...

What would happen to a cell if it was placed into a hypertonic solution? Into a hypotonic solution? What would happen to a cell if the cell itself was hypertonic to the solution?

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