Dentists diagnose and treat dental problems, provide preventative care and education to maintain oral health. They perform procedures like fillings, extractions, root canals, and use x-rays to examine teeth. Becoming a dentist requires undergraduate education with a focus on science, high grades, dental admission tests, and earning a dental degree with clinical training. Dentists can specialize or open a private practice, and salaries range from around $108,000 to over $176,000 depending on experience level.