Conservative dentistry and endodontics: The art and science of restoring the tooth form and function when destructed by carious and non carious lesions affecting the teeth, before involvement of pulp or root canal is termed as conservative dentistry. When the root canal are involved, the speciality is known as endodontics.
Periodontology: The study and treatment of diseases of the periodontium (non-surgical and surgical) as well as placement and maintenance of dental implants-
Prosthodontics: Dentures, bridges and the restoration of implants. Some prosthodontists further their training in "oral and maxillofacial prosthodontics", which is the discipline concerned with the replacement of missing facial structures, such as ears, eyes, noses, etc.
Oral and maxillofacial surgery: extractions, implants, and surgery of the jaws, mouth and face.
Oral Implantology: The art and science of replacing extracted teeth with dental implants.
Orthodontics and dentofacial orthopedics: The straightening of teeth and modification of midface and mandibular growth.