REIMPLANTATION:
Insertion and temporary fixation of partially or completely avulsed tooth or teeth, resulting from traumatic injury.

RELINE:
Acrylic restoration of denture base to compensate for bone loss; direct: done at chairside; indirect: in conjunction with a dental laboratory.

RESTORATION:
Replacement of portion of a damaged tooth.

RETAINED ROOT:
Partial root structure remaining in jaw after extraction or fracture of a natural tooth.

ROOT:
Tooth structure that connects the tooth to the jaw.

ROOT CANAL:
Common term for root canal therapy, also the interior space of the tooth root.

ROOT CANAL THERAPY:
Process of removing pulp of a tooth and filling it with an inert material.

ROOT RESECTION:
Removal of a portion of diseased root structure, retaining the remaining natural tooth.

RUBBER DAM:
Soft latex sheet used to establish isolation of one or more teeth from contamination by oral fluids and to keep materials from falling to the back of the throat.

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