3M Espe Filtek Z250 Xt Restorative Syringe

Preparation:

• • Clean teeth with pumice and water.
  • Select the appropriate shade by evaluating the tooth's gingival, body, and incisal areas.
  • Use a mock-up to test the shade match.

Isolation:

• • • Use a rubber dam or cotton rolls with an evacuator for isolation.

Direct Restorations:

• • • • Cavity Preparation:
        • Clean and round cavity; remove residual materials.
      • Pulp Protection:
        • Apply calcium hydroxide and a light-cure glass ionomer liner if needed.
      • Matrix Placement:
        • Use Mylar strips or matrix bands for anterior and posterior restorations.
      • Adhesive System:
        • Follow instructions for etching, priming, and adhesive application.
• Dispensing:
  • For syringes: Turn the handle clockwise to dispense, then counterclockwise to stop flow and cap the syringe.
• Placement:
  • Apply composite in increments, overfill slightly, and contour with composite instruments.
• Curing:
  • Cure each increment with a high-intensity light (400 mW/cm²). Follow recommended exposure times based on shade.
• Finishing:
  • Contour with fine diamonds or burs. Use finishing strips for proximal surfaces.
• Adjust Occlusion:
  • Check and adjust occlusion with articulating paper and fine diamonds.
• Polishing:
  • Polish with the Sof-Lex Finishing and Polishing System.

Indirect Procedure:

• Dental Operatory:
  • Shade Selection: Choose the shade before isolation.
  • Preparation and Impressioning: Prepare tooth and take an impression.

Laboratory Procedure:

• • • Casting and Trimming:
      • Prepare and trim the cast, apply separating medium.
    • Composite Application:
      • Place die back into the articulated arch; add and slightly overfill with incisal composite.
      • Light cure for 10 seconds, then remove die to avoid sticking. Finish curing.
      • Remove excess composite, develop inclines and ridges.
      • Carefully remove the prosthesis from the die; ensure clean separation from the cured restoration.
      • Check restoration on the master die for fit, flash, and undercuts. Adjust and polish as needed.

Dental Operatory Procedure:

• • Roughen the interior surfaces of the indirect restoration.
  • Clean the prosthesis in a soap solution using an ultrasonic bath and rinse thoroughly.
  • Cement the prosthesis using a 3M ESPE resin cement system, following the manufacturer’s instructions