Advantages of stainless steel crowns


Stainless steel crowns are the treatment of choice for complex cases in primary teeth since they offer retention and resistance. Many times, the strength that they offer is more significant than other types of conventional restorations such as amalgam fillings. Moreover, they have a more extended period of clinical use than class II amalgam restorations. At present, these types of repairs are less and less used. 

Some of the factual details of crowns are mentioned below:

●     Composition: According to its composition, a stainless steel crown contain 70% iron. These are soft and malleable. On the other hand, there are also, chromium-nickel crowns that have 70% nickel, are hard and have more excellent resistance to deformation.
●    Margin: According to its margin, re-contoured crowns are scalloped, and the vestibular margin descends to the gingival per mesial.
●     Pre-adjusted crowns: They are rigid, have straight sides.
●     Rocky Mountain crown: It was the first crown that was used by an orthodontist. This type of crown is not pre-adjusted or pre-contoured and is currently no longer used. This crown requires a lot of marginal adjustments.
●     Unitek crown: It was the second crown developed. This crown is pre-adjusted but must be contoured. It is integrated mainly by chrome and steel. It is the strongest of the other crowns, and it has straight sides but is scalloped to follow a line parallel to the gingival crest.
●     Crown 3M Ion: This crown is pre-adjusted and pre-contoured. It is made of a softer metal. It is designed to adjust the pressure on the preparation without any alteration. They are the most used today.
●     Clinical Principles or Marginal Adjustments: Preformed crowns should have an excellent marginal adaptation, especially on the proximal surface. They should not be too long since this can cause discomfort to the patient during adjustment. Usually, a crown that is too long is clinically observed as an area of ​​ischemia in the gingival tissue.

Some of the most evident advantages of steel crowns are as follows:

●     Durability: Crowns made of stainless steel are more durable than all other types of the crown because they have a clear-cut indication to be used on primary teeth. They are great for teeth that have developmental defects or contains large carious lesions with many surfaces. In such cases, an amalgam is likely to fail. Hence, going for a stainless steel crown is a better option.
●     Low cost: The overall cost of stainless steel crowns are relatively small as compared to other types of dental crowns. Moreover, they are also useful in the long run.
●     Placement is relatively straightforward: From the doctor’s perspective also, it is easier to place a stainless steel crown on the tooth as compared to others.
●     High chance of success: The success rate of a stainless steel crown is also much higher than other types of crowns.

Final Words


To sum up, stainless steel crowns are suitable as they offer protection against recurrent caries, especially in patients with a predisposition to it. In conclusion, the stainless steel crowns help the tooth return to its essential functions. The only disadvantage of this type of restoration is that they are not aesthetic.







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