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.
This is why straws can be a good option to lessen the amount of time a dark staining liquid (coffee or soda for example) has in contact with your teeth. Second truth: After whitening (bleaching), teeth become dehydrated temporarily, making them more susceptible to picking up stain.