Exploitation is defined as the act of using resources or the act of treating people unfairly in order to benefit from their efforts or labor. 1  Making use of natural resources to build a city is an example of the exploitation of those resources. Taking advantage of someone's need for a job and paying them only pennies to perform work so you can get rich is an example of exploitation.
Tooth bleaching is a fast and convenient way to whiten your teeth for most patients. Before starting your treatment, make sure your dentist does a complete exam including x-rays first. Certain types of tooth stains, dental fillings, and crowns will not lighten with bleaching.
A RealAge answered. How long you will need to use teeth whitening trays depends on the stains you are trying to bleach and how white you want your teeth to become. On average, you wear trays for a few hours each day for one to two weeks.But some people with severe stains may need to wear the trays for longer than that.ow long you will need to use teeth whitening trays depends on the stains you are trying to bleach and how white you want your teeth to become.