Extensions (lpp) have contacts.

Extensions (lpp) have contacts.

• A. True
• B. False
• C. Not Applicable
• D. Not Sure

Answer: (B)

In this area, a contact refers to where two tooth surfaces touch—either proximal contact between neighboring teeth or an occlusal contact with the opposing dentition. Extensions of a denture base (the part that extends beyond the last supporting tooth) sit on the soft tissue and are intended to provide stabilization and distribution of forces on the mucosa. They are not designed to create the tooth-to-tooth contact points that define proximal contacts. The denture teeth themselves can participate in occlusion with the opposing arch, but the extension portion of the base does not form those contacts. So the statement is not correct: extensions do not have contacts in the sense of interacting with adjacent teeth.

In this area, a contact refers to where two tooth surfaces touch—either proximal contact between neighboring teeth or an occlusal contact with the opposing dentition. Extensions of a denture base (the part that extends beyond the last supporting tooth) sit on the soft tissue and are intended to provide stabilization and distribution of forces on the mucosa. They are not designed to create the tooth-to-tooth contact points that define proximal contacts. The denture teeth themselves can participate in occlusion with the opposing arch, but the extension portion of the base does not form those contacts. So the statement is not correct: extensions do not have contacts in the sense of interacting with adjacent teeth.