Pain is communication—not confusion
Tooth sensitivity is one of the most common concerns we hear in clinical practice: “My teeth hurt … but I’ve been told everything looks fine.” If that sounds familiar, you’re not alone—and more importantly, you’re not imagining it.
Pain is never random. It is communication.
First, rule out structural causes
Before we look deeper, we must begin with a thorough evaluation. Tooth pain should always be assessed to rule out caries, fractures, endodontic involvement, failing restorations, and periodontal disease. These conditions are real and require appropriate diagnosis and care.
But when these have been ruled out—when the teeth appear structurally sound and the tissues relatively healthy—yet sensitivity persists, we are invited to look beyond what we can see.
Reading the clues: What sensitivity can tell us
While this article focuses on sensitivity without obvious pathology, it is important to recognize that certain patterns of discomfort can offer valuable diagnostic clues.
Sensitivity to cold may sometimes be associated with exposed dentin, but it can also indicate a crack or fracture within the tooth. Sensitivity to heat may suggest deeper pulpal involvement, where the nerve is becoming compromised. Discomfort with sweets is often linked to early caries or changes in the tooth’s mineral balance.
These patterns are not absolute, but they can help guide clinical thinking and reinforce the importance of a thorough evaluation.
When structural causes are present, they must always be addressed first. When they are not, we are invited to look deeper into the biological environment of the tooth.
The living tooth: A responsive system
Teeth are not inert. They are living, dynamic systems composed of dentinal tubules, pulpal tissue, vascular supply, and nerve fibers. Sensitivity arises when fluid movement within the dentinal tubules stimulates the nerve.
This system responds to pressure, chemistry, hydration, circulation, and nervous system regulation. When these inputs become imbalanced, sensitivity can occur—even in the absence of visible disease.
Continue reading my blog, “When teeth hurt but “nothing is wrong”: A biological framework for understanding tooth sensitivity”
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Barbara Tritz, MSB, BSDATE, BRDH, is a biological dental hygienist and orofacial myofunctional therapist whose blog, Queen of Dental Hygiene, provides patients the information they need to help them on their healing journey. “Our one-hour appointment time was just not long enough to share all the many important facts I wanted our patients to learn. Dental hygiene is about so much more than just teaching brushing and flossing," says Barbara. “We are healers, educators, and lifesavers, and we need to give our patients the tools and skills to empower them to true wellness and health.”
