Dycal and composite
Calcium hydroxide liner and composite can protect a deep restoration when the liner is placed only where clinically needed.
The short answer
Calcium hydroxide liner and composite resin can be used in sequence when the liner is placed only where needed and covered with a compatible restorative layer.
What is the role of calcium hydroxide beneath composite?
A calcium hydroxide liner is a thin protective material placed near the pulp, while composite resin is a bonded tooth-coloured restorative material placed above it.
How is composite placed over a calcium hydroxide liner?
Decay close to the pulp may lead a dentist to place a small liner, protect it with a suitable base if needed, etch and bond the prepared tooth, then layer and cure composite resin.
Which symptoms need prompt dental assessment after treatment?
See a dentist promptly for spontaneous toothache, lingering hot or cold pain, pain on biting, or swelling, because these findings may indicate pulpal or apical disease.
What should you ask about layering liner and composite?
Ask whether a liner is needed, what material will cover it, how moisture will be controlled, and how the bite will be adjusted after the composite is cured.
Frequently asked questions
Could this have another cause?
Yes. An examination is needed when different dental or oral conditions can produce similar symptoms.
What should I bring to the appointment?
Bring a list of medicines, relevant medical conditions, when the symptom began, and anything that makes it better or worse.
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.