Sensitive teeth happen when the dentin layer beneath the enamel becomes exposed, reacting sharply to cold, heat, sweet foods, or even a rush of air — a genuinely common symptom with several distinct causes worth telling apart.
At PlanDental in Mahim West, tooth sensitivity is assessed by Dr. Hrishikesh Naik and Dr. Nisha Naik, both MDS in Prosthodontics and Implantology. Read more about the clinic before you book.
People search this for: sharp pain from cold drinks discomfort brushing certain teeth sensitivity after a cleaning or whitening pain from sweet or acidic foods one specific tooth reacting more than others
Sensitive teeth at PlanDental in Mahim, Mumbai are assessed by identifying where the dentin — the layer beneath the enamel — has become exposed. This can happen from gum recession, worn enamel, a cracked tooth, recent dental work, or in some cases, from decay itself. The pattern of sensitivity, and whether it's brief and triggered or lingering, helps confirm which of these is actually responsible.
Underneath the enamel and, where the gum has receded, underneath the root surface, lies dentin — a layer riddled with microscopic tubules leading to the tooth's nerve. When dentin is exposed, temperature changes, sweet foods, or even a puff of air can cause fluid inside these tubules to shift, which triggers a sharp, brief pain signal at the nerve. This mechanism is well documented in dental literature as the leading explanation for how sensitivity actually happens.
Exposes the root surface, which lacks the protective enamel layer entirely.
From aggressive brushing, teeth grinding, or acidic foods and drinks over time.
Creates a pathway for stimuli to reach the dentin or nerve directly.
Whitening, a new filling, or a professional cleaning can cause temporary sensitivity.
Can expose dentin before an actual cavity is visible.
Inflammation and recession together can expose sensitive root surfaces.
Dentin tubules can also become naturally blocked over time by minerals in saliva, which is part of why mild sensitivity sometimes settles on its own. But if the underlying cause — recession, wear, or a crack — is ongoing, dentin keeps being re-exposed and the sensitivity persists or worsens. This is also why desensitizing toothpaste can genuinely help: ingredients like potassium nitrate and certain calcium compounds work by blocking these tubules or calming the nerve's response.
Identifies whether the cause is recession, wear, a crack, or decay.
Strengthens enamel and can reduce sensitivity from mild wear.
Depends on cause — grafting for recession, filling for decay, crown for a crack.
You'll describe which teeth react, to what triggers, and for how long.
Checks for visible recession, cracks, wear patterns, or decay.
A brief, controlled test can help confirm exactly which tooth and trigger are involved.
Used to rule out decay or other issues not visible on exam.
Cost depends entirely on the cause — a desensitizing treatment costs very differently from a filling or a gum graft. PlanDental doesn't publish a fixed figure here — call or WhatsApp for details after the exam.
This section describes what affects cost, not a quotation. Actual cost is confirmed only after an exam.
If sensitivity persists despite a desensitizing product, the underlying cause may need direct treatment. Send your details on WhatsApp for a straight opinion.
A desensitizing toothpaste used consistently can meaningfully reduce symptoms over a few weeks.
A soft-bristled brush and gentler technique reduce further enamel and gum wear.
Reducing acidic foods and drinks can slow further enamel erosion.
Persistent or worsening sensitivity is worth an exam rather than ongoing self-management alone.
Desensitizing toothpaste manages symptoms — it doesn't correct recession, a crack, or decay causing the exposure.
Sensitivity limited to a single tooth, especially if it's worsening, deserves a proper exam rather than continued home management.
Sensitivity accompanied by visible swelling or spontaneous, lingering pain may indicate a more serious issue needing prompt attention.
A stimulus test and exam pin down the actual source before treatment.
Mild cases are managed simply, without unnecessary procedures.
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Cold triggers fluid movement inside microscopic tubules in exposed dentin, which sends a sharp pain signal to the nerve — this is the standard, well-documented mechanism behind sensitivity.
It can be, but it's also commonly caused by gum recession, worn enamel, a crack, or recent dental work. An exam is what confirms which applies to you.
Mild sensitivity sometimes settles as dentin tubules naturally remineralise, but if the underlying cause is ongoing, it tends to persist or return.
Sensitivity after whitening is usually temporary and settles within days to a couple of weeks.
Yes, for many people — ingredients like potassium nitrate work by calming the nerve's response, used consistently over a few weeks.
If it's limited to one tooth, worsening, or not improving with a desensitizing toothpaste after a few weeks, it's worth a proper exam.
1. Splieth CH, Tachou A — "Epidemiology of dentin hypersensitivity," and related evidence-based overviews of pathogenesis and management, indexed on PubMed Central. ncbi.nlm.nih.gov/pmc
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Disclaimer: Information provided on this page is for educational purposes only and is not a substitute for professional dental advice, diagnosis, or treatment.