Teeth Dental Information Adults Children. Dental Care Guide. Dentistry.

Word	Meaning
Radiation	The emission of radioactive waves or particles.
Radiograph	A photographic film that has been exposed to x-rays or radiation. An x-ray.
Rebase	The replacement of the plastic base material of an old denture, to give it a firmer fit.
Receding Gums	The loss of gum around and between teeth. It results in teeth looking longer. It is accompanied by underlying bone loss and is the result of gum disease.
Referred Pain	A pain felt in one place or tooth, but originating elsewhere.
Regurgitation	The return of partially digested food from the stomach to the mouth. It is acidic and has a sour taste.
Reline a denture	The resurfacing of the inner part of a denture to give it a firmer fit.
Remedy	A drug or procedure that will cure or control a disease.
Remineralisation	The replacement of calcium in enamel. Calcium is lost in the decay process.
Removable Appliance	An appliance not attached to teeth and removable from the mouth.
Replacement crown	A new crown that is made to replace all or part of natural crown of a tooth.
Resorbtion	The reduction of the size and quantity of bone, or of a root.
Restoration	The restoring or repairing of teeth with fillings or crowns. A filling.
Restorative Dentistry	The dental name for the repair and replacement of teeth i.e. fillings, crowns, bridges and dentures.
Retainer	An orthodontic appliance to hold teeth in their corrected positions after the main treatment.
Retention	The ability to stay firmly in place, as in the retention of a denture.
Root	The part of the tooth joined to the crown and normally in bone below the gum.
Root Canal	This is a tubular passage through which the nerves and blood vessels enter the tooth. It runs from the end of the root up to the pulp chamber in the crown.
Root Canal Treatment	The removal of diseased nerves and blood vessels of a tooth, and the filling of the root canals with a special material.
Root Planing	The preparation and cleaning of the roots of teeth that have become exposed by gum disease. It includes the reshaping of the roots.