The world needs dentists, and I chose this career because tooth care is a extremely worthwhile and rewarding trade. As you have probably been able to surmise, dentists take care of people’s teeth. They diagnose the problem, and then treat it accordingly. They also give guidance to patients on how to better care for their teeth. Dentists check up on patients every three months to ensure their teeth are in good condition. And when there is a problem with teeth, such as cavities, cracks, or fractures, they can repair them. Dentists also whiten teeth, and correct bite issues.