Helical CT scanning for CAD/CAM subperiosteal implant construction

Area of Science:

• Oral and Maxillofacial Surgery
• Biomedical Engineering
• Radiology

Background:

• Subperiosteal implants are a treatment option for edentulous atrophic mandibles when grafting is not feasible.
• Standard subperiosteal implants require two surgical procedures, posing a disadvantage.
• Despite the two-stage surgery, standard subperiosteal implants are proven with good long-term survival rates.

Purpose of the Study:

• To discuss the application of CT scan subperiosteal implants as a single-stage surgical alternative.
• To evaluate the accuracy and efficacy of CT scan subperiosteal implants compared to conventional methods.
• To highlight the role of advanced CT technology and collaborative teams in achieving successful outcomes.

Main Methods:

• Utilizing computed tomography (CT) scans for precise imaging of the mandible or maxilla.
• Fabricating patient-specific subperiosteal implants based on CT data.
• Comparing the fit and accuracy of CT-derived implants with those from traditional impression techniques.
• Employing modern helical CT scanners for improved image resolution and reduced artifact.

Main Results:

• CT scan subperiosteal implants achieve results comparable to standard implants.
• The accuracy of fit for CT scan subperiosteal implants is similar to implants made with two-surgical-impression techniques.
• Advanced CT technology enhances accuracy by minimizing patient movement and improving model generation.

Conclusions:

• CT scan subperiosteal implants offer a single-stage surgical solution with comparable accuracy to traditional methods.
• The successful implementation relies on a multidisciplinary team including dentists, CT technicians, and radiologists.
• Advancements in CT scanning technology improve the precision and reliability of subperiosteal implant fabrication.