What Is a Dental Crown?
A dental crown, often referred to as a cap, is a tooth-shaped cover placed over a tooth that is extensively damaged or decayed. It is designed to mimic the appearance of your natural tooth. There are several types of dental crowns/caps. Here we will understand everything about PFM (Porcelain Fused to Metal) Crown.
In this guide, we will learn about what are Porcelain crowns, their advantages, disadvantages, procedures, and costs.
What Are PFM (Porcelain Fused to Metal) Crowns?
Porcelain-fused-to-metal crowns offer a strong, durable, and esthetic treatment. Success hinges on proper tooth structure preparation, ensuring sufficient space for material thickness. The esthetic appeal relies on the artistic skill of the lab technologist.
Notably, these crowns may reveal metal or gold margins as gums recede, prompting some patients to replace them for enhanced esthetics. An alternative solution is porcelain-fused-to-metal crowns with an all-porcelain collar, eliminating vulnerability and maintaining a higher esthetic benefit.
Advantages of Porcelain Crowns
- Combine the strength of metal with the natural appearance of porcelain.
- Suitable for both front and back teeth, offering a balance of aesthetics and durability.
Disadvantages of Porcelain Crowns
- Aesthetic limitations, as a dark line may be visible near the gum line.
- Possibility of wear on opposing teeth due to the hardness of the metal.
Procedure for Getting a Porcelain Crown
- Tooth preparation involving filing and shaping.
- Impression taken for precise crown fabrication.
- Placement of a temporary crown while the permanent one is being crafted.
- Final fitting and cementation of the PFM crown.
Who Is a Good Candidate for Porcelain Crowns?
- Individuals requiring durable restorations with a natural appearance.
- Suitable for both front and back teeth.
- Cases where the patient accepts the slight aesthetic compromise for enhanced strength.
Cost of Porcelain Crowns
- Costs vary based on factors such as materials, location, and dental practice.
- Generally more affordable than all-ceramic crowns but pricier than metal crowns.
Care for Porcelain Crowns
- Regular oral hygiene practices are crucial to prevent decay and gum disease.
- Avoid excessive force or grinding to prolong the life of the crown.
- Regular dental check-ups for maintenance and early issue detection.
Typically, crowns have a lifespan of at least 10 years, often lasting much longer. contact Sunnyvale Cosmetic Dentist Dr. Gupta to determine if a dental crown, especially a Porcelain crown is the best treatment for you or not.
Preparing the Tooth for Dental Crown Restoration
Root Canal Considerations
For individuals requiring a crown, concurrent endodontic or root canal treatment may be necessary due to extensive decay, infection, or injury to the tooth’s pulp. Not everyone requiring a crown will also need a root canal.
Foundation Building
The dentist may need to build a foundation to support the crown, especially if significant portions of the natural tooth structure are decayed or missing. In cases following root canal treatment, a post-and-core foundation may be inserted.
Tooth Filing Process
To place a crown, the dentist will file down the tooth to create space for it. The amount of filing may vary based on the type of crown, with all-metal crowns requiring less removal of tooth structure.
Following this, an impression of the tooth is made using thread or cord to push down the gum and ensure an accurate mold. Impressions of surrounding teeth are also taken to ensure proper bite alignment.
Skilled lab technicians at Sunnyvale Dental Care Cosmetic Practice then use these impressions to craft the crown.During the crown creation period, a temporary crown, typically made of plastic, is provided.
These temporary crowns are not designed for long-term use, as their cement can degrade, potentially leading to tooth decay. At a subsequent visit, the temporary crown is removed, and the permanent crown is tested and cemented onto the tooth.
What to Expect After a Dental Crown Treatment?
Post-Placement Comfort
After a dental crown is placed, you should not experience discomfort or sensitivity, although some hot/cold sensitivity may occur if the tooth’s nerve is intact. Any pain or sensitivity upon biting down may indicate an improper crown placement, which your dentist can rectify easily.
Normal Occurrences
It’s normal to observe a dark line near the gum line with PFM crowns, resulting from the underlying metal; however, a crowned tooth is not immune to decay or gum disease. Maintaining good oral hygiene practices is crucial.
Possible Issues and Solutions
Crowns, especially all-porcelain ones, can chip, which may be repairable in the mouth using composite resin. Extensive chipping may require crown replacement. In rare cases, cement may wash out from under the crown, allowing bacteria to cause decay. Loose crowns should be addressed promptly.
If a crown falls out due to cement loss or an improper fit, clean both the crown and tooth. Temporarily reattach using denture adhesive or temporary cement, and contact your dental office immediately for an evaluation.
Schedule a consultation with Sunnyvale Cosmetic Dentist Dr. Gupta at 408-720-0900.
Porcelain Crowns FAQs
How long do porcelain crowns last?
Porcelain crowns typically last at least 10 years, but if we take proper oral care and regular dental check-ups then it helps to extend their lifespan. Regular care plays an important role in maximizing their longevity.
Is the process of getting porcelain crowns painful?
Generally, the process of getting porcelain crowns is not painful. Local anesthesia is used during the procedure to ensure your comfort. You may experience some mild discomfort afterward, but it should subside within a few days.
Can porcelain crowns stain or discolor over time?
Porcelain crowns do not stain or discolor over time. They are highly resistant to staining and discoloration. However, it’s essential to maintain good oral hygiene and avoid habits like smoking or excessive consumption of staining foods and beverages (such as coffee or red wine) to keep your crowns looking their best.
Are there any restrictions after getting porcelain crowns?
After getting porcelain crowns, it’s advisable to avoid biting down on hard objects (like ice or pens) and refrain from using your teeth as tools (e.g., opening packages). Additionally, regular dental check-ups are crucial to monitor the condition of your crowns.
Are there alternatives to porcelain crowns for dental restoration?
Yes, there are alternative materials for dental crowns, such as metal (gold or silver), zirconia, or composite resin. Each material has its advantages and disadvantages. Porcelain crowns are popular due to their natural aesthetics and biocompatibility. Your dentist can guide you in choosing the best option based on your specific needs.