if mercury is harmful for our body , then why do we use amalgam which also contain mercury for filling of teeth cavities ?

Asked by kirti98sharma | 27th Aug, 2014, 06:21: PM

Expert Answer:

Dental amalgam is a mixture of mercury and a silver–tin alloy.

Adavantages:

  • The amalgam filings are strong and long-lasting than other types of filings.
  • It is least expensive filling material.

Disadvantages:

  • Since it contains the element mercury it liberates very low levels of mercury that can be inhaled.
  • Exposure to high levels of mercury vapour are associated with severe effects in the brain and the kidneys.

 

 

Answered by Vaibhav Chavan | 28th Aug, 2014, 09:22: AM