CAD-CAM Hollow Obturator Prosthesis: A Technical Report

Area of Science:

• Biomedical Engineering
• Dental Prosthetics
• Materials Science

Background:

• Obturator prostheses are used to restore function and aesthetics after surgical defects.
• Traditional methods for hollowing obturator prostheses are often complex, time-consuming, and require specialized skills.
• Reducing prosthesis weight and improving patient comfort are key goals in obturator design.

Purpose of the Study:

• To present a novel, simplified technique for hollowing obturator prostheses using digital design and open-source software.
• To demonstrate the efficiency and precision of the proposed hollowing method.
• To evaluate the impact of hollowing on prosthesis weight, tissue stress, and patient comfort.

Main Methods:

• Utilized commercially available CAD software to create a digital design of a solid obturator base.
• Employed an open-source software program to perform a single-step hollowing process on the digital obturator design.
• Precisely controlled the thickness of the prosthesis in the hollowed areas to ensure a hermetic seal and maintain structural integrity.

Main Results:

• The open-source software enabled efficient and convenient hollowing of the digital obturator prosthesis in one step.
• The technique allowed for precise control over the thickness of the hollowed regions, ensuring a hermetic seal.
• Potential for significant reduction in prosthesis weight, leading to decreased stress on underlying tissues and improved patient comfort.

Conclusions:

• Digital hollowing of obturator prostheses using open-source software offers a streamlined and effective alternative to traditional methods.
• This technique provides precise control over prosthesis design, enhancing both functionality and patient-centric outcomes.
• Further research should focus on clinical validation and long-term performance of prostheses fabricated with this digital approach.