A dental crown is a tooth-shaped cap placed over a damaged tooth to restore its form, function, and appearance. It encases the visible portion, providing support and protection. Experiencing some sensitivity after a crown procedure is common, and understanding its duration and causes can help manage concerns.
Expected Initial Sensitivity
Following crown placement, temporary sensitivity is common. This often results from tooth preparation, which removes enamel and exposes the underlying dentin. This exposure makes the tooth more reactive to stimuli like temperature changes. The nerve within the tooth may also become irritated during the procedure.
Sensitivity can also be influenced by the crown material or dental cement. This initial discomfort typically subsides within a few days to a couple of weeks. In some cases, it might take up to four to six weeks to fully resolve.
Reasons for Persistent or New Sensitivity
If sensitivity persists or develops anew, it may signal an underlying issue. A common cause is a high bite, where the crown is too tall, causing uneven pressure when biting. This can irritate the tooth’s nerve. An improper fit can also lead to malocclusion, where the crown doesn’t align correctly with opposing teeth.
Bacteria can get beneath the crown due to an improper seal, or new decay can form, leading to sensitivity. This decay can compromise tooth structure and expose nerves. Pulpitis, inflammation of the tooth’s nerve, can also cause prolonged discomfort. A cracked tooth or crown can cause sharp pain, especially when biting or releasing pressure.
Gum recession around the crown can expose the tooth root, which lacks protective enamel, leading to heightened sensitivity. Bruxism (teeth grinding) can place excessive force on the crown and tooth, contributing to ongoing sensitivity.
Strategies for Managing Sensitivity
For mild sensitivity, home strategies can help. Using a desensitizing toothpaste can block pain signals. Brushing gently with a soft-bristled toothbrush can also prevent aggravating the sensitive area.
Avoiding foods and drinks with extreme temperatures can reduce sensitivity. Limiting sugary or acidic items is also beneficial, as these can irritate exposed dentin. Over-the-counter pain relievers, such as ibuprofen, can offer temporary relief for discomfort. If teeth grinding is suspected, wearing a nightguard can protect the crown and tooth.
When to Seek Professional Advice
Consult a dentist if crown sensitivity worsens, becomes severe, or persists beyond a few weeks. Sharp pain when biting or chewing, especially if the crown feels too high, requires evaluation for bite adjustment. Other concerning signs include swelling, redness, or pus around the crowned tooth, suggesting infection.
A loose crown or one that falls off requires immediate dental attention. Signs of fever with tooth pain should prompt a dentist visit, as this could indicate a more serious infection. Persistent sensitivity interfering with daily activities like eating or sleeping also warrants professional guidance.