Teeth turn yellow because of exposure to materials that cause extrinsic and intrinsic stains. Extrinsic stains occur on the surface of a tooth, while intrinsic stains occur inside the tooth. Most extrinsic stains occur on the enamel and are caused by foods in one's diet. Intrinsic stains, which change the light-transmitting properties of the enamel, are often caused by drugs and other medications.Know More
Foods and drinks that are dark are more likely to cause teeth to appear yellow. This means that fruits such as grapes, pomegranates and blueberries have a higher potential of staining teeth than do lighter fruits. Drinks such as coffee and cola have a similar effect. All these foods and drinks are high in chromogens, which produce pigments that often adhere to tooth enamel. Chewing tobacco and smoking also increase the likelihood of yellow teeth due to plaque that collects on the teeth when these products are used.
Some of the medications that cause intrinsic stains include tetracycline and doxycycline (if children are younger than 8) and minocycline, which is an acne-treating drug. In addition to extrinsic and intrinsic staining, aging also can cause teeth to yellow. Likewise, some people's teeth simply appear more yellow because of genetics.Learn more about Dental
Modern dentures are typically made out of plastic, often with a metal base, though this may be made out of plastic as well. The plastic of choice for dentures is polymethyl methacrylate acrylic, or PMMA. Historically, dentures have been made out of animal teeth, ivory, porcelain and vulcanite rubber.Full Answer >
Teeth are not considered bones. Teeth are calcified tissue made from dentine. Bones differ from teeth mainly because of the presence of collagen, a protein that allows bones to withstand pressure, and osteoblasts, cells that enable bones to heal and grow.Full Answer >
Fake teeth cannot be whitened. However, unlike natural teeth, fake teeth do not stain from exposure to things such as coffee and tobacco. Fake teeth are created in a dental lab using either porcelain or acrylic resin. This material can be tinted to reach a desired shade.Full Answer >
There are several ways to strengthen teeth. These methods include regular brushing, attending periodic dental checkups, avoiding sugary foods, consuming foods rich in calcium, eating foods rich in vitamins and minerals, and drinking lots of water.Full Answer >