Periodontist is the person, who deals with diseases related to gums. If someone completes his 4 years of dental education, he has to study for three more years to become a Periodontist. These doctors help us to prevent and treat gum diseases. No one can diagnose a gum disease better than a Periodontist.
An Endodontics is a person, who deals with those diseases, which are related to tooth pulp and surrounding tissues of a tooth. An Endodontics deals with root canal therapy, surgery and dental trauma. Root canal therapy is a common procedure, and the majority of people are familiar with it.
A doctor which helps us in strengthening our teeth using braces is called as Orthodontist. Problems like tooth irregularity, inappropriate jaw and similar are treated by these orthodontist. The focus of their treatment is on dental placement and they work for the overall beauty of the face, related to teeth.
A dentist is the person, who deals with the prevention, treatment and diagnosis of those diseases,which are related to the oral cavity. They are also called as dental surgeons. There are many other branches of dental surgery.