A digital technique for a prefabricated custom post-and-core restoration

Area of Science:

• Restorative Dentistry
• Dental Materials Science
• Digital Dentistry

Background:

• Endodontically treated teeth often require post-and-core restorations.
• Traditional post-and-core fabrication can be time-consuming and technique-sensitive.
• Minimizing procedural steps and risks is crucial in endodontic restoration.

Purpose of the Study:

• To present a novel technique for fabricating a prefabricated, custom post-and-core restoration.
• To evaluate the efficiency and safety of this digital workflow for restoring endodontically treated teeth.

Main Methods:

• Utilizing cone beam computed tomography (CBCT) to capture root canal anatomy for post design.
• Employing computer-aided design and computer-aided manufacturing (CAD-CAM) for custom core design and milling.
• Fabricating 3D-printed preparation guides for precise post space preparation.

Main Results:

• The described technique enables the delivery of a custom-fit post-and-core at the preparation appointment.
• The use of 3D guides enhances accuracy during post space preparation.
• The workflow demonstrated potential for time savings and reduced risk of root canal perforation.

Conclusions:

• This digital approach offers a streamlined and predictable method for post-and-core restoration.
• The combination of CBCT, CAD-CAM, and 3D guides represents an advancement in restorative dentistry.
• The technique enhances efficiency and patient safety in the management of endodontically treated teeth.