
Irena,
Thank you for your question. We will explain what may be causing the pain and what to do about it.
What Causes Pain After a Tooth Filling?
After getting a new filling, some irritation is typical. But it should improve, not get worse and feel like an electric shock. The decay beneath your old filling may have caused bacteria to get into your tooth fold. The irritation of smoothing the tooth surface so that you can floss may have worsened the condition.
What to Do About Intense Pain After a Filling
If you feel intense pain after a filling and your dentist cannot resolve it, ask to see a root canal specialist (endodontist). You do not need to make an emergency appointment with another dentist. But if you need a new composite filling or a tooth crown, you may want to schedule an appointment with a skilled cosmetic dentist for healthy, natural-looking results.
Preventing Your Tooth from Darkening After a Root Canal
A dentist can prevent your tooth from turning dark after root canal treatment with these steps:
- Complete root canal treatment
- Remove the root canal filling material from inside the tooth crown
- Trim the filling material to ensure it Is below the tooth attachment
- If the filling is large and you need a dental crown after root canal treatment, you do not have to worry about the tooth turning dark.
David Finley, DDS, a Monroe, Louisiana dentist, sponsors this post. Read about what he and Dr. PJ Henderson do to provide some of the best dental care in Monroe.

I am 32 years old, and my permanent teeth look like baby teeth. I am looking for ways to make my small teeth look larger. Will Invisalign help? – Thank you. Alana from Texas
When I was a teenager, small surface holes developed on my teeth. My dentist at the time applied bonding on ten teeth to hide the tiny holes. Over the years as the bonding got old, the dentist recommended a combination of crowns and veneers. I have veneers on my upper front teeth and crowns on the four teeth on either side. Since 2018, I’ve had problems with swollen gums. Now I have a new dentist who prescribed an antibacterial liquid. My gums are inflamed around my upper and lower dental work, but the upper teeth are worse. I should add that my gums around my natural teeth are not inflamed.