A fast to read summery talking about dentin hypersensitivity in general without deep details. for more information about the topic further reading is suggested. reference : Sturdevant’s Art and Science of Operative Dentistry. for more summaries like this and more follow us on telegram https://t.me/dentistrypptx and on our facebook page dentistry.pptx

1. Dentin Hypersensitivity
THE SENSITIVITY OF MEN TO SMALL MATTERS, AND THEIR
INDIFFERENCE TO GREAT ONES, INDICATES A STRANGE INVERSION -
BLAISE PASCAL
PUBLISHED BY:
DENTISTRY.PPTX

2. Introduction
Dentin hypersensitivity is a common clinical condition that is difficult to treat
because the treatment outcome is not consistently successful.
Patients may complain of discomfort when teeth are subjected to
temperature changes, osmotic gradients such as those caused by sweet or
salty foods or even tactile stimuli.

3. Etiology
Dentin hypersensitivity is a multifactorial condition and is not fully understood.
There is a definite change in the structure of dentin in the affected areas which
contain a larger number of patent dentinal tubules with a larger tubular
diameter than the normal unaffected areas.

4. Clinical Features
❖Pain is the most common clinical feature.
❖The intensity of pain: mild discomfort to severe sensitivity
❖Pain is typically rapid in onset, sharp in character and is of short duration.
❖External stimuli include:
1. Thermal stimuli: Hot/cold food and beverages - Cold blast of air
2. Osmotic stimuli: Sweet food
3. Acidic stimuli: Citrus fruits - Acidic beverages

5. Diagnosis ??
Diagnosis is confirmed by using a jet of air or by using a diagnostic probe on dentin in
a mesiodistal direction in the area where the patient complains of pain.
Cervical erosive lesions causing
hypersensitive dentin
Denuded cementum is a
common cause for DH
Attrition of mandibular anteriors causing dentinal
hypersensitivity.

6. Treatment Strategies
Potassium nitrate: Daily use of 5% potassium nitrate-containing toothpaste for 4
weeks is an effective way to desensitize dentin.
Fluorides: decrease the dentinal permeability by precipitating calcium fluoride
crystals inside the dentinal tubules. Used in the form of 2% sodium fluoride or
0.4% stannous fluoride.
Dentin adhesives: The use of dentin adhesives to treat hypersensitive dentinal
surfaces has gained popularity. Reductions in sensitivity can result from
formation of resin tags and a hybrid layer when a dentin adhesive is used

7. Potassium nitrate has also been proved to be effective in
controlling post-bleach sensitivity by employing it as an in-office
10–30 min therapeutic gel application before and after the
bleaching procedure.
Clinical Note

8. Using the primer of the original GLUMA adhesive system (an aqueous solution
of 5% glutaraldehyde and 35% HEMA, currently marketed as GLUMA
Desensitizer [Heraeus Kulzer]), reduced dentin sensitivity through a protein
denaturation process with concomitant changes in dentin permeability.
Clinical Note

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- References : Sturdevant’s Art and Science of Operative Dentistry - 2021