Root Canal Retreatment
Persistent infection can be cleaned through a second root canal course, often over two to five appointments.
[1]The short answer
Root canal retreatment cleans a tooth again after incomplete healing or infection, usually across two to five appointments.
[1]
What the change looks like

What is root canal retreatment?
Who may need it?
A second course is used when healing is incomplete or infection follows earlier root canal treatment and the tooth needs further cleaning.
[1]Does it hurt?
Local anaesthetic is often used at the beginning of each session to numb the tooth and surrounding area and prevent discomfort.
[1]Is it safe?
A rubber dam forms a barrier around the tooth, separating fine instruments and antiseptics while creating a protected working area.
[1]How long does it last?
What happens during the procedure?
What is recovery like?
What are the alternatives?
What should I expect afterwards?
What about insurance and financing in the UAE?
Retreatment can involve several long appointments, temporary protection between them, and further procedures if infection does not settle.
[1]Frequently asked questions
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.
