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What is Fermit in Dentistry?

Published in Temporary Dental Material 3 mins read

Fermit in dentistry refers to a specialized light-curing, single-component composite resin primarily used for temporary restorations and temporary inlays. It is designed to simplify the temporary restoration process as it does not require additional temporary cementation material.

Understanding Fermit in Dental Procedures

Fermit is a versatile material that plays a crucial role in various dental treatments, particularly when a multi-stage procedure is involved. Its unique properties make it an efficient choice for creating provisional fillings and inlays that protect the tooth while a permanent restoration is being fabricated.

Key Characteristics and Composition

Fermit is distinguished by several important features that contribute to its effectiveness and ease of use:

  • Light-Curing: It hardens rapidly when exposed to a specific wavelength of light, typically from a dental curing light. This allows for immediate setting and manipulation by the dentist.
  • Single-Component: Unlike some materials that require mixing multiple components, Fermit is ready to use directly from its packaging, streamlining the clinical procedure.
  • Composite Resin: This indicates it is a blend of plastic (resin) and glass or ceramic particles, providing a balance of strength, aesthetics, and handling properties.
  • Self-Adhesive (No Additional Cementation): A significant advantage is that it adheres well to tooth structure without the need for a separate temporary cement, simplifying the placement process and potentially reducing chair time.

When is Fermit Used?

Fermit is typically employed in situations where a tooth needs protection or a temporary filling for a limited period. Common applications include:

  • Temporary Fillings: After a cavity preparation, especially for deep cavities or indirect restorations (like inlays, onlays, crowns), Fermit can be placed to seal the tooth, protect the pulp, and maintain space until the permanent filling is ready.
  • Temporary Inlays: When an impression is taken for a permanent inlay, Fermit can be used to create a provisional inlay that maintains the occlusal relationship and protects the prepared tooth structure.
  • Sealing Endodontic Access Cavities: After root canal treatment, Fermit can serve as a temporary seal over the access opening while the patient waits for a permanent restoration.
  • Preventing Sensitivity: It can temporarily cover exposed dentin to alleviate sensitivity.

Benefits of Using Fermit

The use of Fermit offers several practical advantages for both dental professionals and patients:

Feature Benefit
Ease of Application Single-component, no mixing required, directly applicable.
Efficient Curing Light-curing enables quick hardening and immediate stability.
Time-Saving Eliminates the need for separate temporary cementation, reducing chair time.
Excellent Seal Provides good marginal integrity to protect the tooth from bacterial ingress.
Patient Comfort Protects the prepared tooth from thermal changes and physical irritants.
Easy Removal Designed to be easily removed when the permanent restoration is ready.

Practical Considerations for Dentists

When working with Fermit, dental professionals value its ease of handling and reliable performance. Its consistent viscosity allows for precise placement, ensuring an accurate temporary restoration. The rapid light-curing ensures that patients can leave the office with a stable temporary restoration, minimizing the risk of dislodgement.

Tips for Using Fermit:

  • Ensure the tooth preparation is clean and dry before application.
  • Apply the material directly into the cavity or onto the prepared area.
  • Light-cure according to the manufacturer's instructions (typically 20-40 seconds).
  • Check occlusion and adjust as necessary.

In summary, Fermit is a valuable material in modern dentistry, simplifying the process of temporary restorations and contributing to efficient and effective patient care.