Introduction

The choice of 3D printing material significantly impacts the accuracy, durability, and

biocompatibility of surgical guides. With numerous options available, understanding the properties

and appropriate applications of each material is essential for dental professionals.

Key Material Properties

When selecting materials for surgical guides, consider these critical properties:

- Biocompatibility: Must be certified (Class I or IIa medical device)

  • Accuracy: Dimensional stability during printing and post-processing
  • Rigidity: Sufficient stiffness to maintain position during drilling
  • Transparency: Visibility of underlying anatomy
  • Sterilization compatibility: Ability to withstand autoclave or chemical

disinfection

Popular Materials Comparison

Dental SG Resin (Formlabs)

The industry standard for surgical guides. Class I biocompatible, excellent accuracy (В±50Ојm),

autoclavable. Ideal for most clinical applications.

NextDent SG (3D Systems)

Another excellent option with similar properties. Good rigidity and transparency. Compatible with

various DLP printers.

KeyGuide (Keystone)

Known for high precision and ease of post-processing. Slightly more brittle but excellent for

single-use applications.

> Important: Always verify that your chosen material has appropriate regulatory clearance (FDA, CE marking)

for intraoral surgical applications.

Printing Parameters

Material selection is only part of the equation. Optimal results require:

- Layer height: 50-100Ојm for guides

  • Proper orientation to minimize supports in critical areas
  • Complete post-curing per manufacturer specifications
  • Thorough washing to remove uncured resin

Conclusion

For most clinical applications, certified dental SG resins provide the best balance of accuracy,

biocompatibility, and ease of use. While other materials may offer specific advantages, the proven

track record of dedicated surgical guide resins makes them the safest choice.

3D Printing

Dental Materials

Biocompatible Resin