DEntin ypersensitivity Zhang Qi Wuhan University School of Stomatology
Dentin Hypersensitivity Zhang Qi Wuhan University School of Stomatology
Introduction
Introduction
Definition: Dentin hypersensitivity is a common condition of transient tooth pain caused by a variety of exogenous stimuli
Definition: Dentin hypersensitivity is a common condition of transient tooth pain caused by a variety of exogenous stimuli
Characteristic Short, sharp pain. Most in cervical then occlusal
Characteristic Short , sharp pain. Most in cervical, then occlusal
Stimuli The exogenous stimuli include 4! Thermal(cold 4 Tactile(touch) Osmotic changes (sweets, drying the surface)
Stimuli The exogenous stimuli include: Thermal (cold) Tactile (touch) Osmotic changes (sweets, drying the surface)
Etiology The primary clinical cause is exposed dentinal tubules
Etiology The primary clinical cause is exposed dentinal tubules
Two phases of development of dentin hypersensitity First, dentin has to be exposed lesion localization I The dentinal tubules must be opened -lesion initiation
Two phases of development of dentin hypersensitity First, dentin has to be exposed. —lesion localization The dentinal tubules must be opened —lesion initiation
The most common clinical cause for exposed dentinal tubules is gingival recession
The most common clinical cause for exposed dentinal tubules is gingival recession
Common reasons for Gingival recession 1. Inadequate attached gingiva 2. Prominent roots 3. Tooth brush abrasion 4. Pocket reduction periodontal surgery 5. Oral habits resulting in gingival laceration 6. Excessive tooth cleaning 7. Excessive flossing 8. others
Common Reasons for Gingival Recession 1. Inadequate attached gingiva 2. Prominent roots 3. Tooth brush abrasion 4. Pocket reduction periodontal surgery 5. Oral habits resulting in gingival laceration 6. Excessive tooth cleaning 7. Excessive flossing 8. others
Reasons for continued Dentinal Tubular exposure 1. Poor plaque control, acidic bacterial byproducts 2. Excess oral acids, sodas, fruit juice 3. Cervical decay 4. Toothbrush abrasion 5. Tartar control toothpaste
Reasons for Continued Dentinal Tubular Exposure 1. Poor plaque control, acidic bacterial byproducts 2. Excess oral acids, sodas, fruit juice 3. Cervical decay 4. Toothbrush abrasion 5. Tartar control toothpaste
