An Insight on Different Dental Adhesives for Crowns

Dental adhesives are typically dental cement that is used to bond the restorative dental prosthesis, such as the dental crown and bridge, inlay, and onlay restorations. The dental resin is used for both temporary and permanent repair of damaged teeth. Additionally, dental adhesives can also be used for fixing chipped teeth and damaged veneers.

Dental adhesives generally contain a chemical that aids in proper bonding of the carefully crafted restoration to the prepared tooth surface. moreover, it maintains the resistance and retention between the two surfaces. (1)


Permanent dental adhesives are typically boned chemically, providing higher strength, which makes it difficult to remove the crowns for repair and replacement. On the other hand, it gives stability to the crown for a longer duration of time.

Most of the dental adhesives come in a powder liquid combination. A dentist takes appropriate proportions of the powder and liquid and mixes them to form a thin paste. The inner surface of the crown is coated with the dental adhesive and placed on the tooth surface. it usually takes a few minutes for the dental adhesive to set correctly.(2)

Types of dental adhesives

Typically, dental adhesives are classified into two types based on the duration of use and composition of the dental adhesive.

Temporary adhesives

Temporary adhesives are usually a part of the temporary kit that is used to fix the crown for a short duration of time. Typically, the dentist assesses the dental condition and determines the use of temporary dental adhesive. Generally, temporary dental adhesives are made from eugenol, olive oil, and zinc oxide powder. (3)

Some of the characteristics of temporary dental adhesives are –

  • It provides an excellent mechanical bond between the tooth and the restoration
  • It is compatible with the surrounding tissues
  • It is easy to remove
  • It protects the damaged part of the tooth and reduces sensitivity

Since temporary adhesives have low resistance and can be dissolved from saliva, it should be replaced in 3-6 weeks with a permanent dental adhesive.

Permanent adhesives

Permanent dental adhesives are typically used for long term dental restorations. It is made from chemical agents that come in the form of a powder and liquid mix. Some of the common characteristics of permanent dental adhesives are –

  • It creates a strong chemical bond between the tooth and the restoration(4)
  • It is bio-compatible with the surrounding dental tissues
  • It forms a good seal around the crown and tooth interface
  • It promotes excellent resistance and retention to the dental crown
  • It does not get dissolved with saliva which makes it a permanent protective agent

Some of the common types of dental adhesives are –

  • Glass ionomer cement – it is a water-based adhesive that is usually used for the final cementation of the crown or bridge. Moreover, it is the most widely used dental adhesive.
  • Bioceramic cement – it consists of glass ionomer with calcium aluminate powder. The mix provides a permanent chemical bond to the tooth and crown interface.
  • Adhesive resin cement – it is a permanent dental glue that bonds very well with ceramic and alloy restorations. (5)
  • Aesthetic resin cement – it consists of translucent resin particles that are available in different tooth shades. Aesthetic resin cement is typically used to restore anterior ceramic crowns. They have high resistance and unique composition that provides lone term support to the crown.
  • Zinc phosphate cement – it is a water-based dental adhesive that is used in limited dental conditions as the phosphoric acid has the potential to damage the pulp tissue.

While choosing the best dental adhesive for your dental condition, it is best to consult a dentist. The dentist usually determines the choice based on the type of dental restoration required, the type and location of the tooth.


Some of the criteria to keep in mind while selecting the best dental adhesive are –

  • Durability
  • Aesthetics
  • Temporary or permanent use

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