How is a light-cured calcium hydroxide liner used?
A light-cured calcium hydroxide liner is placed in a thin layer over very deep dentine and polymerized before the restoration is placed.
Why is calcium hydroxide placed near the dental pulp?
Calcium hydroxide has an alkaline reaction and is used selectively near the pulp. The cavity is then sealed with a stronger restorative or liner material.
How does the dentist handle and cure the liner?
The dentist removes infected dentine, controls moisture, places the liner only at the deepest area, and cures it according to the product instructions.
Which symptoms after treatment need dental care?
Seek care for spontaneous pain, lingering hot or cold pain, swelling, or pain on biting after treatment.
What should you ask about the liner and covering material?
Ask how close the cavity was to the pulp and which covering material was placed.
Frequently asked questions
Does light curing set the liner?
For a light-cured formulation, the light polymerizes its resin component before restoration.
Can a liner repair an infected pulp?
No. Established pulpal disease may need endodontic treatment or extraction.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.

