Drill An instrument for making or enlarging a hole in the bone or in a tooth

Drill - An instrument for making or enlarging a hole in the bone or in a tooth

Preparation - Removal of carious material from tooth in order to establish biochemically correct forms in the tooth to receive and retain restorations

Acid - A compound yielding a hydrogen ion in a polar solvent

Caries - An infectious disease with progressive destruction of tooth sub-stance

Dentition -- The natural teeth, as considered collectively, in the dentinal arch

Fissure -A developmental break or fault in the tooth enamel

Explorer -- A sharp pointed probe used to investigate natural or restored teeth surface

Fluoride - A compound of fluorine with a metal, a nonmetal, or an organic radical

Periodontium - The tissues that surround and support the teeth

Mucosa - A membrane that lines the oral cavity and other canals and cavi-ties of the body

Sealant - A material used to effect an airtight closure