2. O (white fillings) (non- mercury fillings) O a tooth colored mixture of acrylic resin and ceramic filler particles. O was introduced in 1960s

3. O Placed in layers and each layer is hardened by a blue light O Lasts for at least 5 years... O Not only used for restoring decay, but are also used for cosmetic improvements of the smile by reshaping disfigured teeth.

4. O contain acrylic and glass particles (non-toxic) O white-colored (look like natural teeth) O hardens quickly, so the patient is immediately free to chew on the treated tooth O less tooth structure lost because the dentist can make a smaller preparation

5. O more expensive O takes longer for the dentist to do O can stain with consumption of tea, coffee and tobacco O don’t get whiter with bleaching O strong, but not as strong as amalgam (mercury tooth fillings)

6. O http://dentistry.about.com/od/commondentalp rocedure1/i/choosefillings.html O http://www.drhighsmith.com/non-mercury- fillings.php O http://info.atlantacenterforcosmeticdentistry.c om/wp-content/uploads/2012/12/mercury- free-fillings.jpg O http://www.luckydentalny.com/wp- content/uploads/2012/09/tooth-colored- filling.gif O http://media.trb.com/media/photo/2011- 11/66422983.jpg