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Emax crowns: Features, Fabrication and Cost

emax crown preparation

What Are IPS emax Crowns?

IPS e.max, known as "Esthetic Maximized," is renowned for its realistic appearance, strength, and adaptability. IPS e.max is made from lithium disilicate glass-ceramic material with high translucency. Dental restorations like crowns, onlays, overlays, veneers, etc., made with IPS e.max, are aesthetically pleasing and long-lasting.

e.max crowns are superior to conventional porcelain-fused-to-metal (PFM) crowns in several ways. They resemble natural teeth in appearance. As it is translucent, it contributes to a more realistic result. e.max crowns are a popular option for both anterior (front) and posterior (back) dental restorations because of their strong resistance to wear and chipping.

Fundamental Characteristics of emax Crowns:

e.max crowns have the following fundamental characteristics, which add to their realistic appearance.

  1. High Translucency:

    Lithium disilicate ceramic, used to make e.max crowns, has high translucency. Hence, the crown made with IPS e.max ceramic possesses similar properties as normal tooth enamel, allowing light to pass through it. e.max crowns can thus produce a lively, realistic appearance.
  2. Crown Shading:

    Dental technicians can exactly match the shade of an individual's natural teeth to an e.max crown. They consider colour, value, and chroma to achieve an exact match with the neighbouring dentition. This personalised tinting ensures the crown harmony with the neighbouring teeth, resulting in a natural grin.
  3. Reflective Properties:

    e.max crowns can display natural tooth-like reflections because of their optical characteristics. The ceramic material's unremarkable opalescent and reflective properties are intended to imitate the enamel layer of natural teeth, which helps improve the overall aesthetics and the patient's smile.
  4. Structure and Surface Shaping:

    Dental technicians meticulously consider the surface texture and contouring of e.max crowns to match natural teeth structure. They produce tiny ridges, marks, and surface features that closely match the patient's organic teeth. This level of detail enhances the lifelike effect of the crowns.

The Following Steps Are Involved in the Fabrication of e.max Crowns:

  1. Tooth Preparation:

    The first step is to prepare the patient's tooth by removing any cavities or previous fillings and shaping the tooth to fit the crown appropriately. The condition of the tooth and the type of restoration being used determine how much tooth structure is to be removed.
  2. Digital Scanning or Impressions:

    After the tooth has been cleaned and shaped, an impression (mould) of the tooth and the neighbouring teeth is obtained. The dentist uses a digital or intraoral scanner to create a 3D digital model of the prepared tooth and sends the imprints to a dental lab for fabrication. It serves as a template for the final crown.
  3. Computer-Aided Design (CAD):

    A dental technician uses CAD/CAM designing software to construct the crown. After transferring the digital model to the computer, the tooth is given shape, considering the unique needs of the patient and the shape of the tooth. The CAD data is sent to a milling machine that mills e.max crowns from a block of lithium disilicate ceramic material. This process ensures the crown's proper fit, function, and aesthetics.
  4. Finishing and Conditioning:

    After milling, the crown undergoes a staining and glazing process to enhance its aesthetics. The crown is later characterised and stained to resemble natural teeth. It involves applying different shades and layers of ceramic stains to look natural. The crown is then fired in a high-temperature furnace to fuse the ceramic and give it its final strength.
  5. Final Adjustments and Cementing:

    The dentist can make some final adjustments for the fit and comfort of the patient. Once the fit and aesthetics of the crown have been approved, it is firmly bonded to the prepared tooth using dental cement. Once the cement sets, the crown is kept in place.

Emax Crowns Are Recommended for the Following Scenarios:

  1. Damaged or Compromised Tooth:

    e.max crowns are frequently utilised for single-tooth restorations, which involve restoring a compromised or broken tooth to its original form and function.
  2. Anterior Teeth:

    e.max crowns are appropriate for anterior teeth visible in the smile line. They are a popular option for front teeth restorations as they offer superb aesthetics and natural translucency, where a natural appearance is essential.
  3. Posterior Teeth:

    Porcelain-fused-to-metal (PFM) crowns have historically been utilized for posterior teeth because of their strength. However, IPS e.max offers a mix of strength and aesthetics that may make them appropriate for some posterior restorations.
  4. Conservative Tooth Preparation:

    Compared to other restorative materials, the strength of IPS e.max enables more conservative tooth preparation. Less natural tooth structure will need to be removed. It ensures healthy and durable teeth restoration for the long term.
  5. Bruxism:

    Crowns made of e.max are renowned for their sturdiness and strength. Due to the material's resistance to chipping and breakage, they are a good alternative for people with bruxism or teeth grinding habits.
  6. Patients with Metal Allergies:

    Some patients are allergic or sensitive to the metals frequently used in dental restorations. IPS e.max crowns are metal-free and safe; hence, patients with metal sensitivities can use them. Moreover, it is biocompatible and well-tolerated by oral tissues.

What Is the Cost of IPS emax Dental Crowns?

The cost of e.max crowns might differ depending on several variables, including the patient's location, the intricacy of the case, and the fees charged by dentists or dental labs. Due to the superior materials and fabrication methods, e.max dental crowns typically cost more than other dental crowns. IPS e.max crowns serve as a long-term investment for your dental health. Opting for IPS e.max crowns from a reputable brand is recommended. Among the various brands currently in the market, Illusion Dental Crowns stand out as a great choice for superior restorations.

Speaking to your dentist or local dental lab is recommended to learn more about the cost of e.max crowns in your area. They can provide a precise cost estimate based on your unique situation and the recommended course of action for your dental needs.

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