How Long Does a Tooth Hurt After a Filling? What to Expect

What a normal week after a filling feels like

Getting a cavity out and a filling in is a small injury to the tooth, even when it is routine. The nerve inside (the pulp) is irritated, and it takes a little while to settle. The numbness wears off after a few hours, and then you find out what the tooth thinks of it.

• The first few days: sensitivity to cold, hot or sweet food, usually brief. It flares for a few seconds and goes.
• Days 4 to 7: noticeably calmer. You may only notice it with an ice-cold drink.
• Up to two weeks: a faint leftover sensitivity is still within normal, especially when the cavity was deep.

Most people expect to forget about the tooth the moment they leave the chair. It tends to take longer than that, and that is fine. For the full picture, see what is normal and what is not after a filling.

Why some fillings take longer to settle

The time it takes depends mostly on how close the decay was to the nerve.

• A shallow cavity usually settles in a few days.
• A deep cavity sits close to the pulp, and the tooth can stay sensitive for a week or two. Sometimes the nerve is too inflamed to recover, which we cover in deep filling or root canal.
• A tooth that was already sore before treatment starts from a more irritated position.

Sensitivity to cold that fades within seconds is a different thing from an ache that lingers. The first is the tooth settling. The second deserves a second look.

Pain when you bite is a separate problem

Sensitivity to temperature and pain on biting are different symptoms with different causes. If the tooth feels fine to cold but hurts when you chew, the filling is very often a fraction too high. You were numb when it was shaped, so you could not tell, and now the tooth hits first every time your jaws close.

That is the easiest problem in this article to fix. A high spot is adjusted in a few minutes, usually without any anaesthetic, and the soreness goes within a day or two. It does not settle on its own if you keep chewing on it, so do not wait it out for weeks. See what it means when a filling still hurts after months.

When pain after a filling is not normal

The pain to act on is the pain that is not following the script.

• It is getting stronger after day three or four, not weaker
• It throbs on its own, or wakes you at night
• It lingers for minutes after something hot or cold, rather than seconds
• Biting is painful and the pain is not easing
• There is a swelling, a bad taste, or a pimple on the gum near the tooth

A tooth that fits those descriptions may have a nerve that cannot recover, or a bite problem, or a filling that has not sealed. Each is treatable, and none of them improves by waiting. The American Association of Endodontists describes how nerve inflammation presents, and the ADA's page on fillings covers what a normal recovery looks like.

Keeping it comfortable until it settles

• Avoid very cold drinks and ice for the first few days. Room-temperature water is fine.
• Chew on the other side until the sensitivity eases. Our list of what to eat after a filling helps.
• If you need a painkiller, an ordinary over-the-counter one at the dose on the box is enough, unless a doctor has told you otherwise. We explain which painkillers help tooth pain.
• Brush normally, with a soft brush. A toothpaste made for sensitive teeth is reasonable for a couple of weeks.

If it starts on a Thursday night in Beit Shemesh

Pain that wakes you at night tends to pick Thursday, with Shabbat a day away. Our clinic is open Sunday to Thursday 8:00 to 20:00 and Friday 9:00 to 17:00, and Shabbat is for genuine emergencies only. A bite that feels wrong on Friday morning is worth a call straight away, because a high spot takes minutes to adjust and a weekend is a long time to chew around it. Dr. Joel is US-trained and treats in Hebrew and English, so you can describe exactly what the tooth is doing without translating it.

Go to a hospital emergency room, not a dentist, if the swelling is spreading toward the eye or neck, if you have trouble breathing or swallowing, or if you have a high fever with chills. Those are not chair problems.

The short version: expect a few days of sensitivity, a faint trace for up to two weeks, and call if the tooth is getting worse instead of better or hurts when you bite. We place and repair fillings at our dental fillings clinic in Beit Shemesh, at Harav Kook 28/1, and same-day appointments are possible through our emergency dentist in Beit Shemesh. Call or WhatsApp 055-985-8845.