Pain that you can point to with one finger — "this tooth" — is one of the most diagnostically useful symptoms in dentistry. The specificity of the pain tells us the problem is localised and directly affecting a nerve pathway.
Common Causes
A cracked tooth is one of the most frequent causes of sharp, localised pain. Unlike a complete fracture, craze lines and incomplete cracks don't always show on X-ray. The crack flexes under chewing pressure and fires a sharp pain directly into the nerve. Biting on a specific spot often reproduces the pain.
Decay that has reached the dentine layer is another common cause. The dentine is the tooth layer just outside the nerve, riddled with microscopic tubules that transmit pain signals directly. Sweet foods and cold are classic triggers.
A lost or broken filling exposes sensitive tooth structure and can cause sharp pain, especially when biting. If the filling loss has exposed the nerve, this can quickly progress to an infection.
How Dentists Diagnose It
Diagnosis involves biting on a wooden stick (tooth Slooth) to isolate specific cusps, transillumination with a bright light to see cracks, X-rays, and in some cases a bite test where we test whether the pain reproduces under pressure. Sometimes the exact cause isn't obvious until the tooth is examined under magnification.
Treatment Options
Treatment depends on severity. A cracked tooth may need a crown to hold it together. Deep decay may need a new filling or root canal. The sooner you get it assessed, the better the odds of saving the tooth with the least invasive treatment.
If any of this sounds familiar, book an assessment with us. The sooner we take a look, the simpler the treatment is likely to be. Call the practice on 01323 723757 or book online at www.meadsdental.com.