Measuring tooth sensitivity, also known as dentin hypersensitivity, is typically done through specific tests administered by a dental professional. The goal is to identify the exact tooth or teeth experiencing sensitivity and the type of stimulus that triggers the discomfort.
Identifying Tooth Sensitivity
Tooth sensitivity is often reported by individuals experiencing a sharp, short pain in response to certain triggers like cold air, hot or cold drinks, sweet or acidic foods, or even touch. While personal reports are crucial, dentists use specific methods to confirm and measure the sensitivity response.
Clinical Measurement Methods
According to dental diagnostic practices, dentin hypersensitivity diagnosis can be confirmed by using a dental explorer to check response to tactile stimulus or air blast to check response to cold stimulus. These methods help isolate the sensitive area and confirm that the pain originates from exposed dentin.
Here are the primary methods used in a dental office:
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Tactile Stimulus:
- A dentist gently touches the suspected sensitive tooth surface, often at the gum line where root surface might be exposed, using a sharp instrument like a dental explorer.
- This checks the tooth's response to physical contact or pressure on the dentin.
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Thermal Stimulus (Cold):
- A common and effective test involves using an air syringe to direct a blast of cold air onto the tooth surface.
- Alternatively, a cold liquid or a cotton pellet sprayed with a cold substance (like an endo-ice spray) might be applied.
- This test specifically checks the tooth's reaction to cold temperatures, a frequent trigger for sensitivity.
These tests are performed carefully to elicit a response without causing undue pain. The patient's reaction helps the dentist confirm the diagnosis and locate the source of the sensitivity.
Summary of Measurement Techniques
| Measurement Method | Stimulus Type | Tool Used | Description |
|---|---|---|---|
| Tactile | Touch / Pressure | Dental Explorer | Gentle probing of tooth surfaces. |
| Thermal (Cold) | Temperature (Cold) | Air Syringe/Cold | Applying a stream of air or cold substance. |
By using these clinical methods, dental professionals can accurately measure the presence and location of tooth sensitivity, guiding appropriate treatment plans.
