Dentists usually complete between five and eight years of post-secondary education before practising.
Though not mandatory, many dentists choose to complete an internship or residency focusing on specific aspects of dental care after they have received their dental degree.
Many studies have also shown that gum disease is associated with an increased risk of diabetes, heart disease, and preterm birth.
The concept that oral health can affect systemic health and disease is referred to as "oral-systemic health".
According to the World Health Organization, oral diseases are major public health problems due to their high incidence and prevalence across the globe, with the disadvantaged affected more than other socio-economic groups.
The history of dentistry is almost as ancient as the history of humanity and civilization with the earliest evidence dating from 7000 BC.The Egyptians bound replacement teeth together with gold wire.Roman medical writer Cornelius Celsus wrote extensively of oral diseases as well as dental treatments such as narcotic-containing emollients and astringents.Historically, dental extractions have been used to treat a variety of illnesses.
During the Middle Ages and throughout the 19th century, dentistry was not a profession in itself, and often dental procedures were performed by barbers or general physicians.
This schooling is followed by four years of dental school to qualify as a "Doctor of Dental Surgery" (DDS) or "Doctor of Dental Medicine" (DMD).