Can MRI Be Done With Dental Crowns?

Dentists commonly suggest dental crowns to restore damaged teeth, but they can raise concerns when it comes to medical imaging procedures like MRI (Magnetic Resonance Imaging). Patients often wonder, ‘Can MRI be done with dental crowns​?’ or if having them could lead to safety risks. This blog explores the relationship between MRI procedures and dental crowns, addressing common questions and concerns.

What is an MRI?

MRI, or Magnetic Resonance Imaging, is a diagnostic tool that produces detailed visuals of the body’s internal organs and structures. It works by using powerful magnets and radio waves to produce these images, making it a crucial tool for diagnosing various conditions. Unlike X-rays or CT scans, MRIs do not involve radiation.

Because MRI uses magnets, the presence of metal objects in the body, such as dental crowns, can raise questions about their compatibility.

Can MRI be done with dental crowns?

Can MRI be done with dental crowns​? In most cases, dental crowns do not pose a problem for MRI scans. However, it depends on the material used in the crown and its specific properties. Here’s what to know:

1. Metal crowns

Metal crowns, especially those made from ferromagnetic materials like cobalt or nickel, may interact with the magnetic field of the MRI machine. These crowns can potentially:

• Distort the MRI image.
• Cause a slight movement or heating sensation during the scan.

It’s important to note that modern crowns rarely use ferromagnetic materials, but older crowns might.

2. Porcelain or ceramic crowns

Porcelain or ceramic crowns are non-metallic and entirely safe for MRI scans. These crowns do not interfere with the magnetic field or imaging process.

3. Metal-fused crowns

Crowns that combine metal and porcelain are common. The small metal base in these crowns usually poses minimal risk, but it might cause minor image distortion in the area near the crown.

What to tell your doctor before an MRI

Now you know the answer to ‘Can MRI be done with dental crowns​?’ If you have dental crowns and are scheduled for an MRI, it’s essential to inform your healthcare provider. They will:

1. Ask about the type of crown material, if known.
2. Review medical and dental history.
3. Adjust imaging techniques if necessary to minimize interference.

In Richmond Hill, dentists often keep records of the materials used in restorative treatments. If you’re unsure about your dental crown type, consulting your Richmond Hill dentist before your MRI can provide clarity. 

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Unique issues related to MRIs and dental crowns

Will dental crowns impact MRI results?

While most crowns are MRI-compatible, metal-based crowns may create small areas of distortion in the scanned images. This issue is generally limited to scans of the head, neck, or jaw. For MRIs of other parts of the body, dental crowns are unlikely to have any effect.

Can dental crowns heat up during MRI?

There’s a common myth that metal crowns heat up during an MRI, causing discomfort or burns. In reality, this is extremely rare. MRI machines are designed with safety in mind, and the likelihood of significant heating is minimal, especially with modern crowns.

Is it safe to get an MRI with old crowns?

Older dental crowns, especially those made before the widespread use of modern materials, may contain metals more likely to interact with MRI machines. If you suspect your crown is older, notify your healthcare provider for proper evaluation.

How to Prepare For an MRI With Dental Crowns

If you have dental crowns and are scheduled for an MRI, follow these steps for a smooth experience:

1. Consult your dentist

Visit your dentist to determine the material used in your crown. Dentists keep records of materials used in restorations, making it easier to share this information with your healthcare provider.

2. Notify your radiologist

Inform the radiologist about your dental crowns during the pre-scan interview. They may adjust imaging parameters to minimize distortion.

3. Stay relaxed

Just like the implant procedure, MRI procedures are designed to be safe, even for patients with dental restorations. Staying calm and following instructions ensures a successful scan.

Alternatives to MRI for patients with concerns

For patients who experience significant image distortion due to dental crowns, alternative imaging methods may be considered. Options include:

• CT Scans: These provide detailed images and are unaffected by dental crowns.
• Ultrasound: Suitable for specific diagnostic purposes.

Exploring these options with your healthcare professional can help identify the most suitable method for an accurate diagnosis.

Importance of routine dental care

Maintaining routine dental care is vital for the longevity of dental crowns and overall oral health. Visiting your dentist regularly ensures that any issues with crowns are identified and addressed early.

Proper oral hygiene, including brushing and flossing, also reduces the likelihood of complications, such as decay around the crown, which could complicate future imaging procedures.

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Key takeaways

1. Can MRI be done with dental crowns? Yes, in most cases.
2. What material matters most? Non-metal and non-ferromagnetic crowns pose no risk.
3. What should you do before an MRI? Inform your healthcare provider and dentist.

Whether you’re undergoing an MRI or simply curious about your dental health, keeping your dentist informed about medical procedures can help ensure a seamless experience.

The takeaway

Can MRI be done with dental crowns​? Ultimately, dental crowns and MRI scans are generally compatible. But, it’s essential to consider the type of material used in your crown. With the help of your dentist and healthcare team, you can safely navigate imaging procedures without unnecessary worry.

If you have concerns about your dental crowns or upcoming MRI, schedule a consultation with a trusted Richmond Hill dentist. They can offer the guidance you need and help prioritize your oral health effectively.