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    Home » Blog » Dental crown
    Dental restorations

    Dental crown

    KidodentBy KidodentMarch 30, 2021Updated:March 4, 2023No Comments5 Mins Read
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    Teeth crown will be put on the remaining tooth structure or a dental implant with the same function like your teeth. The materials in the creation of the dental crown is important in the how the teeth look and how long do they last.
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    Crown is the restorative cap that is bonded or cemented to cover damaged teeth or severely worn teeth. Crown can be made of different materials to satisfy our needs in both function of teeth and esthetics of our smile.

    Who needs dental crown?

    The choice over crown or other restorative methods like veneers and dental bonding requires understanding of the type of dental condition, the amount of dental work, age of the patient, patient’s desire and the cost of the restoration that is needed.

    In the following conditions we need crown restorative method or tooth crowning:

    • In fixed bridges and removable dentures
    • Severely worn and weekend teeth
    • In conditions which pulp treatment has caused fragile condition for teeth
    • Fractured and severely cracked teeth
    • High degree of dental decay that has resulted in deep dental caries
    • Having a large gap between teeth
    • Receding soft tissues around teeth
    • In dental implants

    Types of tooth crown materials

    Dentists need to know about the type of materials that should be used for patients. Dental laboratory are in relationship with the dentist about different composition of dental materials. Costs, corrosion resistance, the amount of stress-bearing of the material, stiffness are some biomechanical and biocompatible factors of choosing the best restorative material.

    Metal-ceramic dental crown (porcelain):

    Metal-ceramic crown has both the beauty with ceramic and strength with metal. Porcelain-fused to metal crown is another name for metal-ceramic crowns. The cast (the mold or the prepared area of tooth to fill the material with) is metal and the porcelain is used to cover the metal casting

    Alloys are metallic mixtures or combinations that are used to restore the crown in the remaining tooth structure or in dental bridges. Depending on the cost, adherence, esthetic factors, strength and condition of the teeth, alloys can provide the desired strength together with porcelain in the crown restoration. These metal combinations range from expensive metals that are called noble like gold, palladium and silver to the less expensive metals like nickel, chromium and beryllium.

    For example, the combination of gold-palladium is the most popular and highly successful dental crown and in dental bridges. Maybe you have this question in mind why are the metals and porcelain are fused together to restore teeth? Metal or let’s say alloys in metal combinations provide the strength and recommended rigidity for the long period of time. On the other side, porcelain provides the natural, tooth-like color and more importantly the beauty of the restoration in our teeth in the long run.

    All-ceramic dental crown:

    We know how important restoration with the best tooth-like materials is. This is why dentists in laboratory and manufacturers in dental industry have come up with the solution to use ceramic materials to provide both esthetics and strength. The all-ceramic crown restorations with different ceramic materials are as follow:

    • Feldspathic porcelain crown: it is a material as a veneer to cover the metal structure in tooth restoration. Feldspathic porcelain because of high translucency is a great option for anterior teeth and has high esthetic results. It also offers low amount of tooth reduction or we can say it has a minimal invasive intervention.
    • IPS Empress crown: it is a leucite glass-ceramic material. IPS Empress not only has the translucency and simple application, it is also the best for long periods of time among the materials in the all-ceramic crowns.
    • IPS e.max crown: IPS e.max crown is another all-ceramic dental material. With the component of lithium disilicate, IPS e.max is the material not just for anterior and posterior crowns but for many restorative types like veneers, inlays, onlays and in dental bridges. It has high translucency and with great strength to give our teeth the beauty of natural teeth.
    • Zirconia crown: with new technologies CAD (computer aided design) and CAM (computer-assisted manufacture), zirconia crown ceramic can not only provide single crown restoration but produce easily all teeth in the arch. Zirconia has the highest strength among tooth-color materials. Final porcelain veneer finishing at the end offers a more beautiful look for your teeth.

    Preparation for dental crown

    The crown materials are just part of the story. One important part of preparation of the crown is the least soft tissue injuries and gum tissue damage. The restoration begins with tooth reduction (depending on the material type that is going to be used, reduction varies in occlusal, cuspal and facial in millimeters). Reduction is done to remove the caries and remove the structure to make it possible for the contour and the necessary thickness of the materials to be impressed.

    The margin between the natural remaining structure of tooth and the dental crown is another important step in preparation. Dentists need to know the size or the contour for the crown fabrication. Impression of the model is sent to the laboratory to be made with the crown materials. Meanwhile, patients should wear the temporary crowns that are made according to the occlusal of the patients’ teeth for 3 to 4 weeks. The crown cap that is made should be seated in the prepared tooth with either cementation or bonding agents.

    Shading and the color matching is important factor for the unity of a beautiful teeth look. Many factors play roles in providing highly acceptable crowns and new technologies have made it much easier to make it possible.

    Caring tips for dental crown 

    Patients should follow daily oral hygiene home care tips. Oral health should be examined during visits to the dentist. For good maintenance of the crown and oral health, we need to follow these tips:

    • Brushing daily with great care and not with force
    • Do not chew on hard and harsh foods
    • Using mouthwashes and mouth cleaning rinses
    • Daily flossing
    • Avoid sugary drinks and food or use xylitol containing products instead
    • Regular appointment to monitor and test bacterial level and salivary flow in the mouth  

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