To become a dentist, you will need to complete an undergraduate degree in dental science. This is followed by a four-year dental residency program. After completing your residency, you will then be eligible to take the Dentist Licensing Examination (DLE). This is required for licensure in most states. There are many ways to become a dentist and there is no one right way. If you have the ambition and drive, being a successful dentist can be attainable.