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Updated: Jul 13, 2026

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3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects
Published on: August 4, 2020
The ray setting procedure: a new method for implant planning and immediate prosthesis delivery
1Secretary of Biomaterials Clinical Research Association, Pescara, Italy. al.reb@tin.it
Summary
The ray setting procedure precisely plans dental implant positions on a working cast using the Ray Set device. This system facilitates immediate provisional or definitive prostheses for edentulous patients, enabling immediate occlusal loading.
Area of Science:
- Dental Implantology
- Prosthodontics
- Oral Surgery
Background:
- Accurate dental implant placement is crucial for successful prosthetic rehabilitation.
- Current methods for pre-surgical planning can be complex and time-consuming.
- The need for predictable outcomes in immediate loading protocols is increasing.
Purpose of the Study:
- To introduce and evaluate the ray setting procedure for precise dental implant positioning.
- To demonstrate the fabrication of patient-specific surgical guides and prostheses.
- To assess the feasibility of immediate occlusal loading with prostheses fabricated pre-surgically.
Main Methods:
- Utilized the Ray Set device to define hard and soft tissue anatomy on a working cast.
- Correlated cast data with computed tomographic (CT) data and an articulator.
- Fabricated a definitive all-ceramic prosthesis and a surgical stent prior to implant placement.
- Employed the presurgical implant prosthesis (PIP) method for prosthesis fabrication.
Main Results:
- The ray setting procedure enabled precise determination of implant positions on the working cast.
- A passive-fit, all-ceramic prosthesis was successfully fabricated before surgery.
- Immediate occlusal loading was achieved with the pre-surgically fabricated prosthesis.
- The system facilitated accurate margin finishing before cementation.
Conclusions:
- The ray setting procedure offers a predictable method for dental implant planning and immediate prosthesis fabrication.
- This technique supports immediate or delayed implant loading protocols.
- The system integrates digital and analog workflows for enhanced prosthetic outcomes.

