Apply sensigel over teeth who are sensitive. Quit tobacco chew habit if present. And also use any toothpaste that has desensitize effect like sensodent KF or sensoform. Use these at least 15 days for effect. If sensitivity persists then go for root canal treatment.
There are many reasons that become tooth sensitive. That may be deposits, attrition, abrasion and many more. First go for professional cleaning in 90% cases deposits is the reason for tooth sensitive and use some sensitive tooth paste to get temporary relief.
Try a desensitizing paste as sensitivity occurs with ageing due to attrition of teeth. Also your teeth might need rct if the pulp is exposed. Consult your dentist. No need of ent specialist in sensitivity.
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