You just had a filling placed, and now that tooth hurts. Is this normal healing sensitivity, or did something go wrong? The answer depends on what kind of pain you have, when it started, and how severe it is.
Understanding the difference between normal post-filling sensitivity and a serious problem helps you know whether to wait it out or call your dentist.
Post-Filling Pain Types: Comparison Table
| Pain Type | Intensity | Timeline | Triggered By | What's Likely | Normal? | Action | |---|---|---|---|---|---| | Sensitivity to temperature | Mild to moderate | First 2-4 weeks | Hot/cold/air | Irritated nerve; exposed dentin | YES | Wait; sensitivity paste helps | | Bite pain (high bite) | Moderate | Appears within 24-48 hours when biting | Biting on filled tooth preferentially | Filling too high; uneven bite | PROBABLY | Call dentist for bite adjustment | | Lingering pain | Mild to moderate | Hours to days after procedure | Yes, especially to hot | Inflammation from procedure; sensitivity | USUALLY | Ibuprofen; wait several days | | Sharp, shooting pain | Moderate to severe | Hours to days | Cold, biting, or spontaneous | Irritated nerve; possibly deep filling | MAYBE—depends | Wait 24-48 hours; call if worsens | | Constant throbbing | Moderate to severe | Starts within hours; persists | Spontaneous; not just temperature-triggered | Inflamed or damaged nerve; improper material | NO—this is wrong | Call dentist same-day | | Severe pain at night | Severe | Hours to days; especially nighttime | Lying down; pulp inflammation | Nerve inflammation; possibly nerve damage | NO—concerning | Call dentist emergency line same-day | | Swelling/tenderness at gum | Mild to moderate | Hours to days | Chewing pressure | Normal inflammation; contact dermatitis possible | USUALLY | Ibuprofen; watch for infection signs | | Radiating pain up jaw/face | Moderate to severe | Hours to days | Various | Referred pain from irritated nerve | MAYBE | Wait 48 hours; call if persists | | Pain that's worsening over days | Varies | Progressive over 3-5+ days | Increasingly sensitive triggers | Infection or nerve damage developing | NO—worsening is wrong | Call dentist immediately |
Normal Post-Filling Sensitivity (Wait This Out)
Mild to moderate temperature sensitivity for 2-4 weeks is completely normal. Here's why:
Your tooth was prepared (drilled), cleaned, and filled. That process irritates the nerve inside, making it temporarily sensitive. This inflammation fades as healing happens.
What normal sensitivity feels like: - Sharp but brief pain when drinking cold water - Similar pain with hot beverages - Pain stops immediately when the trigger stops - Sensitivity gradually improves over days/weeks - No spontaneous pain (pain only with triggers)
What to do: - Use sensitivity toothpaste (brush twice daily; it takes 3-7 days to help) - Take ibuprofen if discomfort interferes with eating - Avoid extremely hot/cold foods for a week or two - Use a soft-bristled brush - Avoid aggressive brushing on that tooth
Timeline: Most normal sensitivity resolves within 2-4 weeks. Some takes 6-8 weeks. If it's improving, you're fine.
High Bite Pain (This Needs a Quick Adjustment)
If pain appears 24-48 hours after filling and is specifically triggered by biting down on that tooth, your filling is probably too high.
What's happening: When your jaw closes normally, that tooth contacts slightly before others. You unconsciously avoid biting on it, but your jaw constantly tries to bite normally, causing pain and strain.
What it feels like: - Pain ONLY when biting - Pain on that specific tooth, especially when you apply pressure - Feels like you're "hitting" that tooth when you chew - Jaw feels sore/tired at the end of the day - You unconsciously chew on the other side
What to do: - Call your dentist and explain the pain is worse when biting - They can usually fix this in 5-10 minutes with a simple bite adjustment - Don't wait—high bite pain worsens over days
This is not serious, but it's annoying and gets worse the longer you wait.
Concerning Pain (Call Your Dentist Today)
Constant Throbbing Pain
If the pain is constant and doesn't require a temperature trigger, something's wrong.
What's happening: - Possibly an inflamed nerve (pulpitis) - Possibly the drill exposed the nerve during filling - Possibly improper filling material - Possibly early abscess
What it feels like: - Steady, dull throbbing pain (not sharp) - May or may not be temperature-triggered - Doesn't stop when you take ibuprofen - Wakes you at night
What to do: - Call your dentist same-day - Likely needs a root canal (nerve removal) - This won't improve on its own
Severe Pain at Night
If pain is severe enough to wake you or prevent sleep, this is problematic.
What's happening: - Nerve inflammation - Possible nerve damage from the filling - Possible abscess forming
What to do: - If it's after hours, call your dentist's emergency line or go to urgent care - Ibuprofen (400mg) + acetaminophen (500mg) together might help temporarily - This needs professional evaluation urgently, not routinely
Pain Worsening Over Days
If the pain is improving, you're fine. If it's getting worse from day 2 to day 3 to day 4, something is wrong.
What's happening: - Nerve damage - Infection developing - Improper filling placement
What to do: - Call your dentist immediately (don't wait for a routine appointment) - This is escalating and needs urgent evaluation
Swelling or Signs of Infection
If you have any of these in addition to pain: - Swelling of the gum or cheek - Pus or discharge - Fever - Difficulty swallowing
What to do: This is urgent. Call your dentist emergency line or go to urgent care today. You might be developing an abscess.
Specific Pain Scenarios
| Your Situation | Likely Cause | What to Do |
|---|---|---|
| Mild temperature sensitivity, improving daily | Normal healing | Wait; use sensitivity toothpaste |
| Lingering pain for 2-3 hours after procedure | Inflammation from procedure | Ibuprofen; normal; will improve |
| Bite pain appearing after 24-48 hours | High bite/uneven pressure | Call dentist for bite adjustment (not emergency) |
| Sharp shooting pain spontaneously | Irritated nerve | Wait 24-48 hours; call if it worsens or becomes constant |
| Constant dull throb not triggered by temperature | Possibly nerve damage or infection | Call dentist same-day |
| Pain that was better but is now getting worse | Infection or complication | Call dentist immediately |
| Severe pain waking you at night | Serious nerve inflammation | Call dentist emergency line same-day |
| Swelling + pain + fever | Infection/abscess | URGENT CARE or ER |
What Happened During Your Filling
Understanding what your dentist did helps you understand why you're experiencing sensitivity:
- Drilled out decay = irritated the area
- Removed the nerve's protective dentin layer = exposed sensitive tissue
- Placed filling material = thermal irritation possible
- Sealed the tooth = pressure inside tooth changed
All of this causes temporary irritation. Healing takes time.
When the Filling Itself Is the Problem
Rare, but possible problems: - Filling material leaked bacteria underneath - Filling was placed too deep, touching nerve - Filling material is causing an allergic reaction - Filling wasn't properly sealed
Signs this is happening: - Pain that's not improving after 2 weeks - Constant pain despite waiting - Pain that's getting worse over days - Swelling or infection signs
What to do: Call your dentist. They may need to remove and replace the filling.
Key Takeaways
Mild to moderate temperature sensitivity for 2-4 weeks after a filling is completely normal. This is your nerve healing. It will improve.
Pain that's worse when biting (appearing after 24-48 hours) usually means the filling is too high. Call your dentist for a bite adjustment—it's a quick fix.
Constant pain, severe night pain, or pain that's worsening over days is not normal. Call your dentist same-day. This might need root canal or refilling.
Swelling, fever, or discharge means infection. Urgent care needed.
Most post-filling pain is normal and temporary. But pay attention to the type of pain you have. Brief temperature sensitivity is healing; constant throbbing pain is a problem. Your dentist needs to know the difference. When in doubt, call—a quick phone call helps them know whether this is expected or requires immediate attention.