| abutment | <dentistry> The teeth on either side of a missing tooth. (08 Jan 1998) |
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| auxiliary abutment | A tooth other than the one supporting the direct retainer, assisting in the overall support of a removable partial denture. (05 Mar 2000) |
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| splinted abutment | The joining of two or more teeth into a rigid unit by means of fixed restorations to form a single abutment with multiple roots. (05 Mar 2000) |
| intermediate abutment | A natural tooth, or an implanted tooth substitute, without other natural teeth in proximal contact, used along with the mesial and distal abutment's to support a prosthesis; often called a "pier." (05 Mar 2000) |
| isolated abutment | A lone-standing tooth, or root, used as an abutment with edentulous areas mesial and distal to it. (05 Mar 2000) |