3M Espe Filtek Z250 Xt Restorative Syringe

• Easy to sculpt and holds its shape prior to cure
• Handles better than other nanohybrid composites
• Does not slump 
• Does not stick to the composite instruments hence is easy to adapt
• Predictable esthetics
• High stregth 
• Good wear resistance

Composition : 

• Silane Treated Ceramic
• (1-methylethylidene)bis[4,1-phenyleneoxy(2-hydroxy-3,1-propanediyl)]bismethacrylate
• Bisphenol A Polyethylene Glycol Diether Dimethacrylate (BISEMA-6)
• Diurethane Dimethacrylate (UDMA)
• Silane Treated Silica

• 1 x 3gm 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.

• Warranty is not applicable for this product.

Question : Is it necessary to apply a bonding agent before using the 3M ESPE Filtek Z250 XT restorative syringe?
Answer: Yes, it is advisable to apply a bonding agent prior to using the 3M ESPE Filtek Z250 XT restorative material. Utilizing a dental adhesive enhances the bond between the composite and the tooth structure, promoting a more durable and effective restoration. This step is crucial for achieving optimal results in your restorative procedures.

Question : What is the flexural and compressive strength of this composite?
Answer: The 3M Espe Filtek Z250 XT Restorative Syringe exhibits notable mechanical characteristics, with a compressive strength surpassing 385 MPa and a flexural strength exceeding 155 MPa. These robust properties underscore its suitability for enduring restorations, capable of withstanding occlusal demands and ensuring enduring clinical efficacy across diverse applications.

Question : What is a Nonohybrid ?
Answer: Nanohybrid composites offer a reliable solution for a wide range of restorative needs. They contain a broad range of particle sizes for higher filler loading, which leads to strength that’s similar to a traditional hybrid. The addition of nano-sized particles gives the restoration better wear resistance and a surface that is easier to polish for good esthetic results.
Question : What is the significance of adding smaller filler size in Filtek Z250XT ?
Answer: Smaller filler particles make a composite more wear resistant because they leave less interparticle distance and the resin matrix is more protected.