Removing the pulp is not the whole treatment
Root canal treatment involves more than removing the painful nerve tissue. Damaged tissue is removed, the canals inside the roots are cleaned, and the space is filled and sealed. The outer part of the tooth then needs a filling or crown.[1]
The American Association of Endodontists (AAE) explains that treatment can usually take one or two appointments, depending on the tooth and the patient’s circumstances. Someone else’s appointment schedule is not a benchmark for your treatment.[1]
Is one visit better? What the research found
A 2022 systematic review by Cochrane, an international research network that synthesizes evidence, included 47 studies involving 5,805 participants. It found no clear difference in radiographic outcomes assessed at least one year after single-visit versus multiple-visit treatment.[2]
However, a greater proportion of people in the single-visit groups reported pain during the first week after treatment began. Evidence for these two findings was of moderate certainty; other outcomes, such as tooth extraction, remained uncertain. The review does not establish that one visit is always better or that several visits are always safer.[2]
What is the next appointment for?
When treatment spans several visits, the tooth may be sealed with a temporary filling between appointments. The UK National Health Service (NHS) describes the stages of cleaning, filling, and sealing the inside of the tooth, including temporary fillings between visits.[3]
Ask, “Which stage did we finish today?” and “Will the next visit be for filling the canals or restoring the outside?” Understanding what remains helps prevent you from assuming treatment is complete just because the pain has eased.[1][3]
Can you chew normally with a temporary filling?
Until the tooth is fully restored, avoid biting hard foods or chewing heavily on it. Continue brushing and cleaning between teeth gently, and follow your dental team’s instructions about eating and medicines.[4]
Tell your dentist if the temporary filling comes out, the tooth feels unusually high when you bite, or severe pain or swelling develops. Tell your dentist what has changed rather than stopping treatment on your own because of discomfort.[4]
The final restoration and follow-up matter more than the count
Finishing the work inside the roots does not always mean all treatment on the tooth is complete. Check whether a filling or crown is still needed, and attend the recommended follow-up appointments.[3][4]
If you cannot attend as planned, discuss another date with the clinic. Knowing what remains and how to care for the tooth between visits is more useful than expecting a fixed number of appointments for every case.[1][3]
Research and institutional sources
- American Association of Endodontists. What is a Root Canal?View source ↗Official patient information on treatment stages and how appointments depend on the tooth and individual circumstances.
- Mergoni G, Ganim M, Lodi G, Figini L, Gagliani M, Manfredi M. Single versus multiple visits for endodontic treatment of permanent teeth. Cochrane Database Syst Rev. 2022;12:CD005296. doi:10.1002/14651858.CD005296.pub4.View source ↗Systematic review with moderate-certainty findings for radiographic outcomes and first-week pain; certainty differs for other outcomes.
- National Health Service. Root canal treatment. Reviewed 3 October 2025.View source ↗Official guidance on temporary fillings, treatment stages, and follow-up. It does not establish one appointment count for every patient.
- American Association of Endodontists. Post Treatment Care.View source ↗Advice on care before final restoration and when to contact the dentist about a lost temporary filling, pain, or swelling.
Bracketed numbers in the text link to these sources. This article provides general health information; individual diagnosis and treatment plans are determined after a clinical consultation.
