Cavities are one of the most common dental issues, and getting them filled is an essential step in maintaining oral health. A dental filling restores the damaged tooth structure, prevents further decay, and helps retain the tooth’s functionality.
However, after getting a cavity filled, proper aftercare is crucial to ensure the filling sets correctly and the tooth heals without complications.
Many patients unknowingly make mistakes that can lead to discomfort, damage to the filling, or prolonged healing time.
This article will guide you through what not to do after filling a cavity to help you protect your dental work and avoid unnecessary issues.
1. Do Not Eat or Drink Immediately
Wait Until the Numbness Wears Off
After a cavity filling, your dentist will likely use a local anesthetic to numb the treated area. This numbness can last for a few hours, and eating or drinking while your mouth is still numb can lead to accidental injuries. You might bite your tongue, cheek, or lip without realizing it.
Avoid Hard, Sticky, or Chewy Foods
For at least 24 hours, avoid foods that can damage or dislodge the filling, such as:
- Hard candies
- Nuts
- Sticky candies (like caramel or chewing gum)
- Ice cubes
- Crunchy snacks (chips, popcorn, etc.)
Soft foods like yogurt, mashed potatoes, and smoothies are better options immediately after getting a filling.
2. Do Not Consume Extremely Hot or Cold Beverages
After a cavity filling, your tooth may be temporarily sensitive to temperature changes. The nerves inside your tooth might take some time to adjust, especially if the cavity was deep. Consuming very hot coffee or ice-cold beverages can trigger sharp pain or discomfort.
What to Do Instead:
Drink lukewarm water or room-temperature liquids.
Use a straw to minimize contact with the filled tooth.
Wait at least 24-48 hours before consuming extremely hot or cold items.
3. Do Not Chew on the Side of the Filling
Give Your Filling Time to Set
If you have a silver (amalgam) filling, it takes about 24 hours to fully harden. Avoid chewing on the treated side during this period.
Composite (tooth-colored) fillings harden immediately under a curing light, but it’s still a good idea to chew on the opposite side for a few hours to allow the filling to settle properly.
Chewing Can Dislodge the Filling
Biting down too hard on the newly filled tooth can crack or loosen the filling. To prevent this, opt for soft foods and avoid excessive pressure on the treated area.
4. Do Not Skip Oral Hygiene, But Be Gentle
Avoid Aggressive Brushing and Flossing
Good oral hygiene is essential, but brushing too hard near the filled tooth can irritate the area or even dislodge a newly placed filling. Instead:
Use a soft-bristled toothbrush and gentle strokes.
Wait at least 6 hours before flossing around the filled tooth, and be cautious not to pull too forcefully.
Rinse Gently with Warm Salt Water
If your gums feel sore, rinsing with warm salt water (½ teaspoon of salt in a glass of lukewarm water) can help soothe irritation and prevent infection.
5. Do Not Smoke or Use Tobacco Products
Smoking or using tobacco products can:
Delay healing by reducing blood flow to the treated area.
Increase the risk of infection in the gums surrounding the filling.
Cause staining on composite (tooth-colored) fillings.
To promote faster healing, avoid smoking for at least 24-48 hours after getting a cavity filled.
6. Do Not Consume Alcohol
Alcoholic beverages can:
Interfere with the healing process by causing dehydration.
Irritate the filled tooth and surrounding gums.
React poorly with pain medication if your dentist prescribed any after the procedure.
It’s best to avoid alcohol for at least 24-48 hours after your dental filling.
7. Do Not Ignore Pain or Sensitivity
Mild Sensitivity Is Normal
It is common to experience mild discomfort or sensitivity for a few days after getting a filling, especially when consuming hot, cold, or sweet foods.
Severe or Prolonged Pain Is Not Normal
However, if you experience:
- Sharp, persistent pain for more than a few days
- Difficulty chewing or biting
- Swelling around the treated tooth
These could be signs of:
An improperly shaped filling
A filling that is too high and needs adjustment
An allergic reaction to the filling material
An underlying infection requiring further treatment
If any of these symptoms occur, contact your dentist immediately for evaluation.
8. Do Not Grind Your Teeth (Bruxism)
Grinding or clenching your teeth, especially at night, can:
- Weaken or damage the filling
- Cause tooth sensitivity
- Lead to headaches and jaw pain
If you have a history of bruxism, talk to your dentist about getting a nightguard to protect your teeth and fillings while you sleep.
9. Do Not Delay Follow-Up Appointments
Some dental fillings may require follow-up visits to ensure they are functioning correctly. If your dentist recommends a check-up, do not ignore it. These visits can:
Identify any problems with the filling early on.
Ensure your bite is properly aligned.
Allow for any necessary adjustments.
10. Do Not Assume the Filling Will Last Forever Without Care
While fillings are durable, they do not last forever. Depending on the type of filling material used:
Composite (tooth-colored) fillings last about 5-7 years.
Amalgam (silver) fillings can last 10-15 years.
To prolong the life of your filling:
Maintain regular dental check-ups (every 6 months).
Avoid excessive sugary and acidic foods that contribute to decay.
Practice good oral hygiene to prevent further cavities.
Conclusion
Getting a cavity filled is an important step in preserving your dental health, but what you do afterward is just as important.
By avoiding common mistakes—such as eating the wrong foods, skipping oral hygiene, or ignoring pain—you can ensure a smooth recovery and extend the lifespan of your filling.
If you experience any unusual pain, discomfort, or issues with your filling, do not hesitate to contact your dentist for further evaluation. Proper aftercare will help keep your teeth healthy and your filling intact for years to come.
