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Today, with advances in science and technology, dental crowns are more sophisticated in terms of their properties such as resistance, toughness, texture, shine, opacity, adaptability, durability and mimicry with the remaining biological structures; making the prognosis of dental rehabilitation treatment more encouraging in many cases. However, it should be noted that all prosthetic treatment always goes hand in hand with the operator’s expertise, to make a precise diagnosis and to indicate this or that rehabilitative treatment. The different dental crowns that are offered in clinics vary according to the place, culture, education, but especially the purchasing power of the patients.
Materials that crowns are made of
Dental Crowns are a tooth-shaped “cap” that is placed over a tooth covering it to restore its shape and size, strength, and/or to improve its appearance. The crown fully encases the entire visible portion of a tooth that lies at and above the gum line.
Dental Crowns are custom made to fit over each tooth. They can be made of a variety of different materials, including ceramics, porcelain-and-metal, gold, or resin.
In order to recommend you which materials for Dental Crowns are the best, your dentist will first consider factors such as:
• Tooth’s location
• How much of the tooth will show when you smile
• Position of your gum tissue
• Function of the tooth that needs the crown
• How much natural tooth is remaining
• Color of the surrounding teeth
If you have a large cavity that’s too big for a filling, it may be time for a crown. You may also need Dental Crowns if your tooth is: severely worn down, cracked, or weakened. Crowns are also recommended following a root canal on a tooth because the tooth is more fragile and needs protection.
You may be a candidate for a crown if you’re missing a tooth, and the dentist needs to put in a dental bridge or a tooth implant.
Among them are the first ceramics enriched with feldspar and Lucite with a natural dental appearance, very high aesthetics, and low mechanical resistance and brittleness. The filling using this type of dental crowns are disorganized because of poor techniques of coccion and loss of uniformity.
These dental crowns have the greatest supply and demand within the dental landscape. These are characterized in terms of their aesthetic, mechanical, and optical properties and also because of their low cost compared to zirconia. The full porcelain ceramics known as EMAX and are in greater demand, widely distributed in European and American countries.
Zirconium is a material with white coloration. Thanks to which its aesthetic, natural results can be obtained with adequate luminosity. This material is very biocompatible. Thus, the prosthesis will be easier tolerated by the surrounding tissues. Also, Zirconium has the highest properties of hardness and resistance to attrition and flexion.
This ceramic, like porcelain, has little tolerance to permanent deformation, but it has excellent aesthetic results, which is why it is indicated for veneers of anterior teeth.
In situations such as:
• Replace large fillings, when not enough tooth remains
• Prevent a weakened tooth from breaking
• Cover a discolored or deformed tooth
• Cover a tooth that has undergone root canal treatment
• Improve the aesthetic appearance of an anatomically affected tooth.
• Repair a fractured tooth
• Cover a dental implant
• Place a bridge