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Class notes

Dental Hypersensitivity

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Definitions of dental hypersensitivity, its cause and different types of desensitizing agents

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  • August 10, 2021
  • 14
  • 2020/2021
  • Class notes
  • Ms. getty
  • All classes
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Week 3 - Dental
Hypersensitivity
Definition

'excessive' sensitivity and/or tooth pain

Characterized: short, sharp pain, arising from exposed dentin that
occurs in response to "stimuli"

Stimuli

temperature (hot or cold)

evaporative

tactile

osmotic

chemical

Characteristics of dentin

Dentinal tubules open to the oral cavity

large & numerous dentinal tubules

thin, poorly calcified, or breached smear layer




Week 3 - Dental Hypersensitivity 1

, Smear layer

A deposit of salivary proteins, debris from dentifrices and/or other
calcified matter that occludes dentinal tubules




Non-sensitive dentin

fewer dentinal tubules at tooth surface are present than in sensitive
dentin

Either a smear layer is present or tubules are occluded by mineral
compounds




Factors contributing to dentinal hypersensitivity


Week 3 - Dental Hypersensitivity 2

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