Three-dimensional printed model of impacted third molar for surgical extraction training

Area of Science:

• Dental Surgery
• Medical Education Technology
• 3D Printing Applications

Background:

• Impacted mandibular third molar extraction is a common oral surgery procedure.
• Effective training models for dental students are limited, hindering pre-clinical skill development.

Purpose of the Study:

• To develop and evaluate a three-dimensional (3D) printing-based training model for impacted mandibular third molar extraction.
• To compare the efficacy of the 3D-printed model with a traditional animal model for surgical training.

Main Methods:

• High-resolution computed tomography data were used to create a 3D digital model of impacted third molars.
• The model was fabricated using 3D printing technology and incorporated replaceable parts and a gingival simulant.
• Oral surgeons and dental students evaluated the 3D-printed model against a pig mandible model using Likert scale questionnaires.

Main Results:

• The 3D-printed model accurately replicated mandibular anatomy, bone, and teeth, and simulated surgical procedures effectively.
• Both experienced oral surgeons and dental students rated the 3D-printed model superior to the animal model for overall value and anatomical accuracy.
• Haptic feedback for soft tissues was comparable between the 3D-printed and animal models.

Conclusions:

• The 3D-printed model provides a realistic and highly effective training solution for impacted third molar extraction.
• This innovative model significantly enhances pre-clinical skill acquisition for dental students in oral surgery.
• The study highlights the potential of 3D printing technology to revolutionize dental surgical education.