Tooth pain that comes and goes most often means one of a few things: short, sharp twinges usually point to sensitivity or an early problem like a small crack or exposed root, while pain that lingers after hot or cold, or wakes you at night, suggests the nerve is becoming inflamed and needs attention sooner. The pattern of the pain — what triggers it, how long it lasts, and whether it’s getting worse — tells us a lot about the likely cause. Intermittent pain is easy to ignore when it settles, but it’s worth getting checked, because it rarely fixes itself.
Here’s how to read the patterns and know when to act, without trying to diagnose yourself.
Quick, sharp twinges with hot, cold or sweet
A brief, sharp zing when you eat or drink something cold, hot or sweet — that stops as soon as the trigger is gone — usually points to dentine sensitivity or a minor issue like a small area of decay, a worn spot, gum recession exposing the root, or a tiny crack. It’s common and often manageable, but it’s still worth checking, because the underlying cause (a cavity or crack) can grow. If a sensitivity toothpaste doesn’t settle it within a couple of weeks, book in.
Pain on biting or releasing
A sharp pain when you bite down on something, or oddly when you release the bite, is a classic sign of cracked tooth syndrome. Cracks can be invisible on x-rays and cause pain that comes and goes depending on how you chew, which makes them frustrating to pin down. Left alone, a crack can deepen until it reaches the nerve or splits the tooth. Catching it early often means a simpler repair — sometimes a crown — rather than losing the tooth.
Lingering pain after hot or cold
If the pain lingers for many seconds or minutes after the hot or cold is removed, or comes on by itself, the nerve (pulp) is likely inflamed — pulpitis. Early on this can be reversible if the cause (often deep decay or a leaking filling) is treated promptly. If it progresses, the nerve can die and become infected, leading to an abscess. Lingering or spontaneous pain, especially if it wakes you at night, is the pattern that warrants prompt assessment.
Why pain comes and goes
Intermittent pain is deceptive because the quiet spells feel like recovery, when often the underlying problem is simply not being provoked at that moment — or, with an inflamed nerve, it can flare and settle as inflammation waxes and wanes, even as it slowly worsens. A nerve that dies can stop hurting entirely for a while before an abscess develops. So “the pain went away” is not reliable evidence that the problem has resolved, which is exactly why intermittent pain deserves a look.
Pain that isn’t from a tooth
Not all “tooth” pain comes from teeth. Sinus congestion can make upper back teeth ache, especially with a cold; grinding and jaw-joint (TMJ) problems can cause tooth and facial pain; and gum issues can mimic tooth pain. We tease these apart at the exam so you get the right treatment rather than work on a healthy tooth. Telling us exactly what you feel and when helps enormously.
When to get assessed
- Pain that lingers after hot or cold, or comes on spontaneously
- Sharp pain when biting or releasing, that keeps recurring
- Pain that wakes you at night or is getting worse over days
- Any swelling, a bad taste, or a tooth that feels loose — see us promptly
- Sensitivity that doesn’t settle within two weeks of using sensitivity toothpaste
Book an assessment
Because the right treatment depends entirely on the cause, an exam (often with an x-ray and some simple tests) is the way to get a clear answer and stop the problem progressing. Don’t wait for it to become constant. Patients across Winmalee, Springwood, Glenbrook and the Blue Mountains are welcome to book an assessment.

