Usually to restore the function of the teeth and, especially the molars in primary dentition, fillings or reconstructions of the teeth with pathology are made by means of a filling. Sometimes, when the destruction of the teeth is greater, a dental crown is required to cover the tooth and restore its function.

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The dental crowns  in dentistry usually come preformed, ie the shape of the molar established. These pre-made crowns can be metallic or tooth-colored. There are several sizes so that the most suitable thickness can be selected for each tooth.

These pre-fabricated dental crowns are the most successful and durable restoration for the primary dentition due to decay or fracture. These dental crowns do not fracture and rarely wear out. Therefore, they are an effective treatment maintaining the tooth and the function that it performs in the mouth until the exfoliation of said temporary tooth.

Temporary molars restored with preformed crowns are less likely to develop pathology or long-term pain compared to a restoration with a regular filling.

In order to provide full coverage to the temporary tooth there are four different types of crowns:

  • Metallic crowns:

These are metallic-looking crowns that, due to their color, are usually placed on temporary molars. They are one of the most durable and easy to place crowns. Its placement is carried out in teeth with extensive cavities and with little remaining tooth structure.

  • Open-faced crowns:

They are crowns that have an open vestibular part where composite of the same color as the tooth is placed in this exposed region. It takes a long time to work and does not give good results, which is why they are not currently used.

  • Aesthetic crowns:

They are crowns with an aesthetic front, easy to place.

  • Acetate crowns:

These crowns are very aesthetic and provide an excellent result. So they are the crowns indicated to restore temporary anterior teeth.

  • Polycarbonate crowns:

It is another option to rehabilitate the anterior teeth. Although with acetate ones, better results are obtained.


The indications for the use of crowns in children are as explained below:

Dental crowns are indicated when there is a  caries restoration on two or more tooth surfaces. Children with a  high degree of risk for cavities  may be the most indicated to have a dental crown placed. All temporary teeth after receiving a pulp treatment, their placement is required to protect the tooth until its exfoliation. Temporary teeth with  structural defects , such as amelogenesis imperfecta, the placement of a dental crown is indicated and, in this way, protect said tooth. Teeth that are fractured or with a restoration of fractured cusps. Sometimes it is useful to place a dental crown together with a space maintainer, on  teeth with excessive wear .

The child’s caries risk, the age at the time of treatment, and the longevity of the individual restoration all impact the cost and effectiveness of the materials chosen to restore primary teeth.