1. One symptom, several explanations
A sharp response to a cold drink does not identify its cause. Sensitivity can be associated with exposed root surfaces, enamel wear, decay or a damaged filling. Beneath the protective outer tissue lies dentine; when it becomes exposed, temperature changes may be felt more strongly. An examination considers which structure is affected and why, rather than treating every sensitive tooth in the same way.
2. Tell your dentist what you notice
Try preparing a short note: is one tooth affected or several areas? Does it happen only with cold drinks? When did it start? The purpose is to describe your experience, not to diagnose yourself. There is no need to repeatedly test the tooth with something cold; the examples you have already noticed in everyday life are enough to begin the conversation.
3. Keep cleaning gentle
A soft brush and gentle movements are preferable to forceful scrubbing. A sensitivity toothpaste may help, but follow its directions and use it consistently. Bring the product name and, if helpful, your brush to the appointment. Before starting a new product, agree how long to use it and when to return. This makes it easier to evaluate the next step without changing several products at once.
4. When to see a dentist
Sudden, severe or persistent sensitivity, particularly in one tooth, should be assessed. Depending on the cause, care may involve protective treatments, a filling or gum treatment. Ask your dentist to explain the cause and the available treatments. At review, discuss what has improved, which triggers remain troublesome and whether the recommended routine is practical. If symptoms continue, see your dentist rather than relying on a toothpaste alone.
