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Zirconia crowns have become a popular choice in dental restorations due to their durability and versatility. However, achieving a perfect fit can be a challenge. Here’s a guide on identifying and addressing the causes of ill-fitting Zirconia crowns, along with solutions to ensure optimal results.

Causes of Ill-Fitting Zirconia Crowns

  • Rushed Production: Hastily made crowns can lead to inaccuracies in design and contouring, causing poor fit.

  • Inadequate Margins: Poorly defined margins allow saliva and bacteria to infiltrate, leading to decay and periodontal issues.

  • Improper Filling Process: Loose fillings can result in gaps, allowing entry of debris and bacteria.

  • Inaccurate Impressions: Errors in impression-taking can lead to incorrect data for crown fabrication.

  • Preparation Errors: Mistakes during tooth preparation can prevent the crown from fitting properly.

Causes of Ill-Fitting Zirconia Crowns

Fixing Ill-Fitting Zirconia Crowns

  • Adjust Cementing Process: Before cementing, check the fit of the crown in the patient’s mouth. Clean the teeth with pumice stone to enhance adhesion.

  • Clean Intaglio Surface: Thoroughly clean the inner surface of the crown to improve bonding. Proper cleaning ensures better adhesion of the cement.

  • Change Adhesive Technique: Apply adhesive, place the crown, and remove excess cement carefully to ensure a snug fit.

Removing Phosphate Groups

Removing Phosphate Groups

Removing phosphate groups can prevent ill-fitting issues:

  • Sandblasting: Use gentle sandblasting at low pressure to prepare the tooth surface.

  • Sodium Hypochlorite: Clean the crown’s intaglio with gauze soaked in a 5% sodium hypochlorite solution, rinse with water, and let it dry.

  • Ivoclean: Apply Ivoclean to the intaglio surface for 20 seconds, rinse, and let it dry naturally.

Addressing Facial-Lingual Problems

Facial-lingual fitting issues may arise due to digital imaging inaccuracies. To resolve this:

- Adjust Computer Settings: Use software to set appropriate margins and specify space between the fit surface and the prep site. This mimics the function of a die-spacer, preventing the crown from rocking facial-lingually.

Finding a Quality Outsourcing Dental Laboratory

Finding a Quality Outsourcing Dental Laboratory

For high-quality Zirconia crowns, consider partnering with a reliable dental lab. In Vietnam, XDENT LAB is a subsidiary of Nha Viet dental group, offers competitive prices and high-quality Zirconia crowns. With proper impressions, you can avoid receiving ill-fitting crowns.

By understanding these causes and solutions, dentists can ensure better fitting Zirconia crowns, leading to improved patient outcomes and satisfaction.

XDENT LAB is an expert in Lab-to-Lab Full Service from Vietnam, with the signature services of Removable & Implant, meeting U.S. market standards – approved by FDA & ISO. Founded in 2017, XDENT LAB has grown from local root to global reach, scaling with 2 factories and over 100 employees.. Our state-of-the-art technology, certified technicians, and commitment to compliance make us the trusted choice for dental practices looking to ensure quality and consistency in their products.

XDENT LAB is an expert in Lab-to-Lab Full Service from Vietnam

Our commitments are:

  • 100% FDA-Approved Materials.

  • Large-Scale Manufacturing, high volume, remake rate < 1%.

  • 2~3 days in lab (*digital file).

  • Your cost savings 30%.

  • Uninterrupted Manufacturing 365 days a year.

Contact us today to establish a strategy to reduce operating costs.

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Vietnam Dental Laboratory - XDENT LAB

🏢 Factory 1: 95/6 Tran Van Kieu Street, Binh Phu Ward, Ho Chi Minh City, Vietnam

🏢 Factory 2: Kizuna 3 Industrial Park, Can Giuoc Commune, Tay Ninh Province, Vietnam

☎ Hotline: 0919 796 718 📰 Get detailed pricing