Distance learning, also called online education, is very attractive to students, especially who want to continue education and work in field. At University of Pittsburgh-Bradford, 4 students are enrolled exclusively in online cources and 469 students are enrolled in some online courses based on 2015-2016 enrollment data.
Home Remedies for Whiter Teeth. Some people still prefer the age-old home remedy of baking soda and a toothbrush to gently whiten teeth at home. Also, some foods such as celery, apples, pears, and carrots trigger lots of saliva, which helps wash away food debris on your teeth.
There are also food types that should be avoided after teeth whitening to prevent sensitivity and pain. The bleaching agents used in whitening treatments weaken tooth enamel in the short term. Oranges, lemons, limes, pickles, soft drinks, etc. can increase the acidity of your saliva which in turn can harm your teeth.nfortunately, coffee is one of the most common causes of tooth staining, and may even be the reason you need to get your teeth whitened in the first place. At the very least, dentists recommend waiting 48 hours after whitening before consuming dark foods or liquids. If you simply can't resist, use a straw.