The document discusses digital workflow for making proper abutments when dental fixtures are placed close together. It outlines the treatment planning process, including CBCT scanning and surgical guides. There are two types of abutments: traditional pre-made abutments and digitally customized abutments made through CAD/CAM. Digital workflow allows visualization of contacts, non-contacts, and pressure points before and after extraction and placement of fixtures to determine the best type of final prosthesis.

1. Department of Fixed Prosthodontics and Dental Materials
Tuscan School of Dental Medicine
University of Siena, Italy
Dean: Prof. Dr. Marco Ferrari, MD, DDS, Ph D, FADM
How digital workflow can help making proper abutments
(when two fixtures are placed close each other)

2. Treatment Planning
1. Visit, study models, face bow, articulator and Wax up
2. Radiographic guides
3. CBCT Scan
4. Treatment planning and surgical guides
5. Placement of fixtures prosthodontically guided (perio surgery if needed)
6. (Re-opening), impression, temporarization, Selection of abutments and
type of prosthesis
7. Abutments (CAD-CAM)
8. Final prosthesis and 9. Esthetic expectations

3. Two types of abutments
1. Traditional pre-made abutments
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2. Digitally customized abutments
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4. Before............and............after extraction of upper bycuspid
Tradional impression and scanner+milling center

8. Yellow: contact
Blue: non contact
Red: pressure

12. The position of the fixtures also influence
the type of final prosthesis (screw vs cemented)