Crowns

Teeth are designed to withstand years of chewing, biting, and speaking, but they are not indestructible. Over time, dental conditions such as decay, fractures, wear, or large fillings can compromise the strength and integrity of a tooth. In some situations, restoring the tooth with a simple filling may not be sufficient. This is when a dental crown may be recommended.

A dental crown is a custom-made cap that covers the visible portion of a tooth. It helps restore the tooth’s function, shape, and appearance while also protecting it from further damage. At Alpha Dental, our dental team provides crowns as one of several restorative treatment options, always taking into consideration the individual needs of each patient.

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What Is a Dental Crown?

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A dental crown is essentially a protective covering for a tooth. Unlike a filling that repairs only a portion of the tooth, a crown encases the entire tooth structure above the gum line. Once placed, it becomes a strong outer layer, allowing the tooth to function normally again.

Crowns are used not only for restoring natural teeth but also as the visible portion of a dental implant or as anchors for dental bridges. Because of their versatility, crowns are a common part of comprehensive dental treatment.

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Why Are Dental Crowns Needed?

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Dental crowns may be recommended in a variety of clinical situations:

• Protecting weakened teeth: Teeth that are cracked, fractured, or weakened by large cavities may need crowns to prevent further breakage.
  
• Restoring broken or worn-down teeth: In cases of trauma, grinding (bruxism), or long-term wear, crowns can rebuild the tooth to its proper shape and function.
  
• Supporting teeth with large fillings: When a tooth has lost much of its natural structure and is mostly restored with filling material, it may not withstand chewing forces. A crown provides added strength and coverage.
  
• Following root canal treatment: Teeth that have undergone root canal therapy may become more fragile. Crowns are often used to protect teeth against future fractures.
  
• Replacing missing teeth: Crowns serve as the final restoration for dental implants and can also support bridges to replace missing teeth.
  
• Improving aesthetics: While crowns are primarily functional, they can also be used to improve the appearance of discoloured, misshapen, or uneven teeth when other treatments are not suitable.

Types of Dental Crowns

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Crowns are made from different materials, each with unique properties. The choice of material depends on factors such as the location of the tooth, the patient’s bite, and aesthetic considerations.

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Porcelain-Fused-to-Metal (PFM) Crowns

• Provide a balance of strength (metal core) and natural appearance (porcelain covering).
• Commonly used for both front and back teeth.
  

All-Ceramic or All-Porcelain Crowns

• Provide the most natural tooth-like appearance.
• Often recommended for front teeth where aesthetics are a priority.
  

Metal Crowns (e.g., gold or other alloys)

• Extremely durable and resistant to wear.
• Less commonly used today due to their metallic appearance, but still effective for molars.
  

Zirconia Crowns

• Very strong and fracture-resistant, while also offering good aesthetics.
• Increasingly chosen for both front and back teeth.
  

Temporary Crowns

• Not permanent restorations, but used to protect the prepared tooth while the permanent crown is being fabricated.
  

Your dentist will explain the advantages and limitations of each type and recommend an option based on clinical suitability.

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The Procedure for Getting a Dental Crown

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The process usually takes two or more visits, although newer technology may sometimes allow for same-day crowns. The typical steps include:

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Initial Assessment: The dentist examines the tooth, reviews X-rays if required, and determines whether a crown is the most appropriate treatment.

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Tooth Preparation: The tooth is reshaped to create adequate space for the crown. If significant tooth structure is missing, filling material may be used to build up the tooth first.

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Impressions or Scans: A physical impression or digital scan is taken to capture the exact shape of the prepared tooth. This ensures the crown will fit precisely.

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Temporary Crown Placement: While the permanent crown is being fabricated, a temporary crown is placed to protect the tooth.

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Permanent Crown Placement: Once the custom-made crown is ready, the dentist checks its fit, alignment, and appearance. Adjustments are made if necessary before the crown is cemented permanently.

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Benefits and Limitations of Dental Crowns

Benefits:

• Strengthens and protects weakened teeth.
• Restores chewing function.
• Helps maintain proper bite and alignment.
• Provides an aesthetic solution for discoloured or misshapen teeth.
• Works in combination with implants and bridges for tooth replacement

Limitations:

• Requires removal of some natural tooth structure.
• May need replacement after several years due to wear or damage.
• It can cause sensitivity initially, especially to temperature changes.
• Risk of loosening, chipping, or decay under the crown if oral hygiene is not maintained.

Risks and Considerations

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Like all dental procedures, crown placement carries some risks. These may include:

• Post-treatment sensitivity
• Crown loosening or dislodgement
• Chipping or fracture of ceramic crowns
• Allergic reactions to materials (rare)
• Decay forms under the crown if oral hygiene is poor

Your dentist will discuss these considerations and address any concerns before treatment begins.

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Aftercare for Dental Crowns

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Crowns can last many years if cared for properly. Good aftercare practices include:

• Brushing at least twice daily with fluoride toothpaste.
• Flossing around the crown to remove plaque at the gum line.
• Avoid chewing excessively hard objects, such as ice or pens.
• Attending regular dental check-ups to monitor the crown and surrounding teeth.
• Inform the dentist if the crown feels loose, uneven, or causes discomfort.

When to Consult a Dentist

It is advisable to see a dentist if you:

• Have a cracked or broken tooth.
• Experience discomfort when chewing.
• Notice a tooth that is weakened or unstable.
• Have completed root canal treatment and need protection for the tooth.
  

A dental crown may be one of the recommended solutions depending on your condition.

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Conclusion

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Dental crowns are a reliable option for restoring and protecting teeth that have been compromised by damage, decay, or wear. They not only improve function but also help maintain overall oral health. The choice of crown and the treatment plan will depend on each patient’s unique needs, as assessed by a dentist.

If you would like more information about dental crowns, you may contact Alpha Dental to arrange a consultation with our dental team.