A. A hernia is a protrusion of an organ or tissue through an abnormal opening in the body. Most hernias occur when a piece of intestine slips through a weakness in the abdominal wall, creating a bulge you can see and feel.
In order to become an orthodontist, students need to complete four years of dental school. Coursework in dental school includes anatomy, physiology and microbiology, as well as classes that apply more specifically to orthodontics, such as dental anatomy and occlusion, pediatric dentistry and dental materials.
Orthodontist: Job Duties, Employment Outlook and Educational Requirements Research what it takes to become an orthodontist. Learn about education requirements, job duties, average wages and job outlook to find out if this is the career for you.