What where dental filling made of 30 years ago?

Answer by  drpremkunju (25)

the field of dentistry has been predominated over the last century by the silver amalgam or silver mercury fillings,but recently (past 25 to 30) resins or composite fillings are common

Answer by  enu (452)

Normally dental amalgams were used as dental fillings 30 years ago. They have mercury along with silver,tin,copper and zinc in different proportions. Nowadays these are used less because of the toxicity of mercury as it slowly leaches out into the mouth.