Tooth Preparation Terminology Quiz

Simple tooth preparations involve only one tooth surface, compound preparations involve two surfaces, and complex preparations involve three or more surfaces. Examples: (1) An occlusal tooth preparation is an 'O'; (2) a preparation involving the mesial and occlusal surfaces is an 'MO'; and (3) a preparation involving the mesial, occlusal, and distal surfaces is an 'MOD'.

The internal wall is the prepared surface that does not extend to the external tooth surface.

The axial wall is the internal wall parallel to the long axis of the tooth.

<p>The pulpal wall (floor) is the internal wall that is perpendicular to the long axis of the tooth and occlusal of the pulp.</p> Signup and view all the answers

<p>The floor (or seat) is the prepared wall that is reasonably horizontal and perpendicular to the occlusal forces, providing stabilizing seats for the restoration and increasing the resistance form of the restored tooth against postrestorative fracture.</p> Signup and view all the answers