How Fillings Have Changed...
If it’s been a while since you last had a filling done, you may be surprised at the new options available. Read on to see how fillings used to be, as well as what’s available today. Mercury Fillings The original standard of dental fillings involved squeezing a mold of a metal alloy called dental amalgam. This amalgam contains predominantly silver, hence the common name of silver fillings, but also up to 50 percent mercury. This led to many health concerns, as mercury is toxic even in small quantities. Despite the mercury in a cured filling not being available as free mercury, and thus having a small risk of entering the patient’s general system, the other concern is that amalgam fillings require undercutting. This is the removal of extra tooth matter to create a better position for the filling to stay within. However, some dentists note that amalgam fillings are stronger than the more popular composite and are still a worthwhile choice for back teeth. Tooth-Colored...