Dental Crown Composition: Materials, Benefits, and Considerations for Strong, Long-Lasting Restorations

Composition

• Nano ceramic filled composite resin

• It is a aesthetic radiopaque bio-compatible material with following physical properties
  1. Flexural Strength: ≥190 MPa
  2. Flexural Modulus: ≥4.2 GPa
  3. Compressive strength: ≥320 MPa
  4. Water sorption: 3-4.5 ug/mm³

  5. Water Solubility: 0.5-1.8 ug/mm³

• Tooth preparation.
  1. Occlusal reduction 1.5-2 mm
  2. Proximal reduction 1mm
  3. Buccal and Lingual reduction 1mm

• Cementation
  1. Preferred RMGIC
  2. GIC

• If there is any high point occlusal reduction is mandatory otherwise crown fracture can occur.