Tooth sensitivity can show up out of nowhere—an unexpected zing from cold water, a sharp twinge during brushing, or discomfort when eating sweets. While sensitivity is common, it’s not always easy to tell whether it’s a minor issue or a sign of something more serious. Understanding what causes tooth sensitivity can help you decide whether you need emergency dental care or a routine appointment.
Common Causes of Tooth Sensitivity
Tooth sensitivity happens when the protective layers of your teeth weaken or when something irritates the inner nerve. Not every cause is serious, but all are worth paying attention to.
Enamel Erosion
Enamel can wear down over time due to acidic foods, aggressive brushing, or teeth grinding. When enamel thins, the underlying dentin is exposed, triggering sensitivity.
Gum Recession
Gum recession exposes the roots of your teeth, which are naturally more sensitive. This can happen from gum disease, brushing too hard, or aging.
Tooth Decay
Cavities expose sensitive areas of the tooth, often causing sharp discomfort when you eat or drink.
Recent Dental Work
Sensitivity after fillings, crowns, or cleanings is normal and usually temporary. It should improve within a few days to weeks.
When Sensitivity Is Not an Emergency
Most cases of mild, occasional sensitivity are not considered dental emergencies. If your sensitivity:
- Occurs only with cold foods or drinks
- Comes and goes
- Has been consistent over time
- Is manageable with sensitivity toothpaste
…it’s likely related to enamel wear or gum exposure. These are important to treat, but they don’t usually require immediate care. Scheduling a routine dental exam can help pinpoint the cause and prevent the issue from worsening.
When Tooth Sensitivity Is an Emergency
Some cases of sensitivity signal a deeper problem that needs urgent attention. You should contact an emergency dentist right away if your sensitivity is paired with any of the following:
Severe or Persistent Pain
If the pain is sharp, constant, or worsening, it could indicate an infection, cracked tooth, or advanced decay.
Swelling or Signs of Infection
Facial swelling, fever, a bad taste in the mouth, or pus are strong indicators of an abscess. This is a dental emergency and requires immediate treatment.
Sudden, Intense Sensitivity
A sudden change—especially if triggered by biting—may point to a fractured tooth or damaged dental work.
Sensitivity After Trauma
If you’ve experienced a fall or impact to the face and your tooth becomes sensitive, the nerve may be affected. Prompt care can help save the tooth.
How to Protect Sensitive Teeth
While waiting for your appointment, you can take steps at home to reduce irritation. Use toothpaste for sensitive teeth, avoid extremely hot or cold foods, brush gently with a soft-bristled toothbrush, and switch to lukewarm water when rinsing. These small changes help calm irritated teeth without worsening the problem.
Knowing when sensitivity is serious can help you get the right care at the right time.
About the Practice
Pearl Palm Beach Dentistry offers comprehensive emergency dental care to address sudden discomfort, tooth pain, and urgent oral health concerns. Dr. Ashley Civetti and our experienced team evaluate the root cause of tooth sensitivity and provides personalized treatment to relieve discomfort and protect long-term oral health. If your teeth hurt, come see us.
Call us at (561) 798-4200 or request an appointment online.