A Review of Current Systems, Materials, and Protocols for 3D-Printed Splints, Crowns, and Dentures - PubMed
4 days ago
- #dental restorations
- #vat polymerization
- #3D printing
- Resin vat printing technologies: SLA offers superior surface finish, while LCD and DLP excel in speed for larger prints, with LCD providing a cost advantage.
- Ceramic vat printing yields clinically acceptable strength but is equipment- and time-intensive.
- Optimal angulation varies by application: splints (0°), crowns (150°-210°), dentures (45°-90°).
- A 50 μm layer height is preferred for most restorations, with dentures tolerating 100 μm.
- Commonly used resins employ low-viscosity monomers and fast photoinitiators, requiring 385-405 nm curing.
- Flexible splints excel in fracture toughness and impact strength; firm splints match milled wear performance.
- Printed crowns, while weaker than milled options, offer toughness; wear rates remain a concern.
- Printed denture bases vary in strength but can match or exceed conventional options; printed teeth show favorable wear resistance.
- Postprocessing, polishing, and bonding protocols critically influence outcomes.
- Clinical significance: Employing validated printing parameters, selecting the appropriate resin, and following evidence-based protocols maximizes restoration accuracy and mechanical performance.