Abstract
The preparation of abutment teeth during full mouth reconstruction must be undertaken based on a plan of a series of treatments which leads up to final placement of the prosthesis. This plan begins with the initial prosthetic preparations which include the diagnosis, devising a treatment plan, periodontal and endodontic treatments, oral surgery, and orthodontic treatment. The treatment crowns are then fabricated, the impressions taken, and the proper condylar position, vertical dimension, and occlusal plane, including measurements of mandibular movements, are also determined. The laboratory procedures are then carried out as well as remounting. In addition to preparing the abutment teeth following basic principles, the following points must also be taken into consideration.
1. The shape of the abutment tooth must be simple.
2. The prepared surface of the abutment tooth must be smooth.
3. The orientation of the abutment teeth must be parallel if at all possible.
4. The occlusal surface, vertical dimension, and arch form of the abutment teeth must be in harmony.
5. Auxiliary retentive mechanisms must be included in the abutment teeth.
