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Crowns and bridges are non-removable prosthetic structures. Before use, the patient needs to learn about the procedure.

When are crowns removed?

So, first of all, let’s understand when the removal of crowns may be necessary:

  1. Uncementation. When chewing, the cement under the crown partially disintegrates and the patient feels the movement. The loosened structure is removed, the cement residue is removed, and the crown is reinstalled.
  2. Painful sensations under the prosthesis. Theoretically, procedures can be carried out through the holes, which after treatment are filled. In fact, not always the method is effective and allows you to get to the lesion
  3. Repeated prosthetics. If the tooth next to the onlay is destroyed, it makes sense not to install a separate denture, but to fill the gaps in the tooth row with a single bridge. The onlay is removed, and the patient is given an impression, from which the dental technician makes a new product. The procedure is performed on patients with worn dentures that have become uncomfortable or do not provide chewing function.

How are crowns removed?

The algorithm of removal is different for different methods. The most popular methods are:

  • Sawing out the denture;
  • The use of a Kopp appliance, which preserves the integrity of the structure.

Features of the methods in the comparative table:

Method of removal

Principle

Pros and cons

Sawing

The prosthodontist carefully saws the structure with a drill, ensuring the integrity of the tooth underneath.

Pros:

  • Minimal risk of damage to the tooth stump.
  • Cost of the procedure.

    • Cons:

  • Cons: The patient will face the expense of a new denture.

Coppa appliance

The prosthetic tooth is treated with ultrasound to reduce the strength of the cement bonds. An appliance is placed on the crown, which acts on the edges with a jolting motion to remove the onlay with minimal disruption.

Pros:

  • The product is more likely to survive.

Cons: The work requires the highest skill and experience, without which there may be consequences:

  • structural splintering;
  • Fracture of the residual limb;
  • fracture of the tooth root.

After removal, endodontic treatment or re-prosthetic treatment is immediately carried out. The bare residual limb is sensitive and is covered with a temporary onlay.

Prosthodontics is a dental service with a significant price tag. It is necessary to choose a dentist thoughtfully so that you do not have to resort to re-prosthetics due to poor tooth preparation or premature destruction of the onlay.

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