Toothache: Causes, Relief & When to Get Help

A toothache is your body flagging that something’s wrong — and the something ranges from a bit of trapped food to an infection that needs prompt care. The tricky part is that very different problems can feel similar, so this guide sorts out the common causes, the at-home relief that’s actually safe and effective, the red flags that mean get seen now, and realistic Central Florida costs to fix the underlying problem.

A note on this guide: At-home measures manage symptoms; they don’t fix the cause. Persistent, severe, or worsening pain — or pain with swelling or fever — needs a dentist. This is informational content, not clinical advice; costs are planning estimates, not quotes.

Common causes of a toothache

Tooth pain can come from the tooth itself, the gums, or nearby structures. The usual suspects:

Tooth decay (a cavity). The most common cause. As decay deepens toward the nerve, sensitivity turns into aching pain.
A dental abscess or infection. Throbbing, persistent pain, often with swelling, a bad taste, or a gum bump — this is urgent. See our dental abscess guide.
A cracked or broken tooth. Sharp pain when biting, especially on release, and hard to localize.
An inflamed or dying nerve requiring a root canal. Look for lingering pain to hot or cold; see the signs you need a root canal.
Gum disease. Sore, swollen, bleeding gums and sensitivity, from infection in the tissues supporting the teeth.
A lost filling or crown, exposing sensitive tooth structure.
An erupting or impacted wisdom tooth pushing against neighbors at the back of the jaw.
Food trapped between teeth, or aggressive brushing/grinding — sometimes the fix is as simple as flossing or a night guard.
Referred pain — sinus infections and, rarely, jaw-joint or even heart issues can mimic a toothache. If upper back teeth ache during a cold, a sinus infection may be the real cause.

Because these overlap, self-diagnosis is unreliable — the value of a dental visit is pinpointing which one you actually have.

What to do for relief right now

These measures are safe for most people and can hold you over until you’re seen. They soothe symptoms; they don’t cure the cause:

Rinse with warm salt water (about half a teaspoon of salt in warm water) several times a day to clean the area and reduce bacteria.
Floss gently around the sore tooth to remove trapped food — sometimes that’s the whole problem.
Take OTC pain relievers as directed. Alternating ibuprofen and acetaminophen is often more effective than either alone (confirm it’s appropriate for you).
Apply a cold compress to the outside of your cheek in ~15-minute intervals to reduce swelling and dull pain.
Keep your head elevated when lying down to ease throbbing.
Avoid very hot, cold, sweet, or hard foods on the sore side.
A clove oil (eugenol) dab on the tooth can temporarily numb it — use sparingly.

Don’t place an aspirin directly against the gum — it burns the tissue and won’t help the tooth. And remember these are stopgaps: pain that keeps coming back means the cause is still there.

When to get help — the red flags

Some toothaches can wait a day or two for a regular appointment; others can’t. See a dentist promptly, or seek emergency care, if you have:

Severe, unrelenting pain, or pain lasting more than a day or two.
Facial or gum swelling, or a fever — signs of infection.
A gum bump, pus, or a persistent bad taste.
Pain with a broken tooth or a knocked-out tooth.
Pain that wakes you at night or throbs when you lie down.

Go to the ER (or call 911) right away if swelling is spreading toward your eye or neck, you have difficulty breathing or swallowing, or a high fever with facial swelling — those can signal a dangerous, spreading infection. For how to choose between the ER and a dentist, see our emergency dental care guide.

A key point: if a severe toothache suddenly disappears, that’s not always good news — the nerve may have died while the infection continues silently. Get it checked anyway.

Why you shouldn’t just “wait it out”

Toothaches rarely resolve permanently on their own, because most causes — decay, cracks, infection — don’t heal without treatment. Waiting usually means the problem grows: a small cavity that needed a filling becomes a root canal; an untreated infection becomes an abscess that can spread. The pain is the warning; treating it early is both safer and cheaper.

Central Florida treatment costs

Once a dentist finds the cause, the fix — and the cost — follow from it. Planning ranges for the Central Florida market, not quotes:

The cause	Typical fix	Central FL cost
Diagnosing the pain	Emergency/diagnostic exam (+ X-ray)	$100–$400
Cavity	Filling	$150–$450
Infected nerve	Root canal	$700–$1,800
After a root canal	Crown	$1,000–$1,800
Unsalvageable tooth	Simple extraction	$150–$400
Complex removal	Surgical extraction	$300–$800
Replacing a lost tooth	Dental implant	$3,000–$5,800

The pattern: the exam that identifies the problem is the small part; the treatment is where cost lives. And the cheapest path is almost always catching it early — a filling is a fraction of the root canal and crown the same tooth needs once decay reaches the nerve.

Where to go from here

Figure out the cause: compare the signs you need a root canal, a cracked tooth, and a dental abscess.
In pain now? Read our emergency dental care guide and see what an emergency dentist can do.
Understand common fixes: review root canal treatment, tooth extraction, and dental crowns.
Estimate your cost: use our free dental cost calculator for a realistic Central Florida range.

Frequently asked questions

What is the fastest way to relieve a toothache at home?

Rinse with warm salt water, floss gently to remove any trapped food, take OTC pain relievers as directed (alternating ibuprofen and acetaminophen is often more effective), and apply a cold compress to the outside of your cheek. Keep your head elevated when lying down. These soothe symptoms but don’t fix the cause — see a dentist if pain persists.

When should I see a dentist for a toothache?

See a dentist promptly if the pain is severe or lasts more than a day or two, or if you have swelling, fever, a gum bump, pus, or a broken tooth. Go to the ER for spreading facial swelling, trouble breathing or swallowing, or a high fever with swelling — those signal a potentially dangerous infection.

Why does my toothache come and go?

Intermittent pain is common with cracked teeth (sharp pain on biting) and with early nerve inflammation (lingering pain to hot or cold). It can also come from trapped food that shifts. The fact that it returns means the underlying cause is still present, so it’s worth having a dentist pinpoint it even during a pain-free stretch.

Can a toothache go away on its own?

Occasionally the pain eases — but that usually doesn’t mean the problem is gone. Decay, cracks, and infections don’t heal without treatment, and a severe ache that suddenly stops can mean the nerve has died while infection continues. The pain is a warning; ignoring it typically leads to a bigger, costlier problem later.

How much does it cost to fix a toothache in Central Florida?

It depends on the cause. Diagnosis runs $100–$400. A filling for a cavity is $150–$450; an infected nerve needs a root canal at $700–$1,800 plus a crown at $1,000–$1,800; an unsalvageable tooth needs extraction at $150–$800 and possibly replacement. Catching it early is far cheaper.

Is it bad to put aspirin on my gum for a toothache?

Yes — don’t do it. Placing an aspirin directly against the gum tissue causes a chemical burn and won’t relieve the tooth pain. Aspirin and other pain relievers only work when swallowed as directed. For local relief, use warm salt-water rinses or a small dab of clove oil instead.

Could my toothache actually be a sinus problem?

Possibly. The roots of upper back teeth sit near the sinuses, so a sinus infection can cause aching that feels like a toothache — often affecting several upper teeth at once and worsening when you bend over or during a cold. If your dental exam is clear, a dentist or physician may look at your sinuses as the source.

Want to know what fixing your toothache will cost before you go in? Use our free dental cost estimator for a realistic Central Florida range, no email required — and read our emergency dental care guide if the pain is severe.