Use of 3D-Printed Direct-to-Multiunit Abutment Cylinders for Efficient All-On-X Provisionalization: A Case Report

Area of Science:

• Dental Implantology
• Digital Dentistry
• Prosthodontics

Background:

• Digital dentistry enhances precision in full-arch implant therapy.
• Stackable guide systems streamline bone reduction, implant placement, and prosthetic positioning.
• Immediate loading is a common approach for edentulous rehabilitation.

Purpose of the Study:

• To describe a fully guided dual-arch reconstruction using a novel stackable guide system.
• To detail the use of 3D printed direct-to-multi-unit abutment (MUA) temporary cylinders.
• To showcase an improved workflow for guided bone reduction, implant placement, and provisional prosthesis delivery.

Main Methods:

• A four-part stackable guide system was employed for guided bone reduction and implant placement.
• Novel 3D printed direct-to-MUA temporary cylinders were utilized.
• Guided provisional prostheses were delivered directly to the multi-unit abutments.

Main Results:

• The technique facilitated precise coordination of surgical and prosthetic phases.
• The direct-to-MUA cylinders increased material bulk around screw-access channels.
• On-site conversion procedures were eliminated, enabling direct prosthesis delivery without same-day printing.

Conclusions:

• This fully guided approach enhances predictability in full-arch implant reconstructions.
• The novel 3D printed components simplify immediate loading procedures.
• The described method offers an efficient workflow for digital full-arch rehabilitation.