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Effect of intracanal cryotherapy on post-operative pain in single-visit endodontic retreatment: a randomized clinical trial
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Effect of intracanal cryotherapy on post-operative pain in single-visit endodontic retreatment: a randomized clinical trial
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Effect of intracanal cryotherapy on post-operative pain in single-visit endodontic retreatment: a randomized clinical trial
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Journal Article
Effect of intracanal cryotherapy on post-operative pain in single-visit endodontic retreatment: a randomized clinical trial
2024
Overview
Background
This randomized clinical trial aimed to evaluate the effect of intracanal cryotherapy with 2–4 °C normal saline irrigation on post-operative pain after single-visit non-surgical root canal retreatment.
Methods
Forty-six single-rooted, single-canal teeth requiring non-surgical root canal retreatment were randomly assigned to two groups (
n
= 23): a cryotherapy group and a control group. All the treatments were completed during a single visit. A combination of nickel-titanium and stainless-steel files was used for the removal of gutta-percha and root canal preparation, and irrigation was performed using 5.25% NaOCl and 17% EDTA. The cryotherapy group had a final irrigation temperature of 2–4 °C for 5 min before root canal obturation, whereas the control group received irrigation at room temperature. Post-operative pain levels were assessed via the Numerical Rating Scale at 6, 18, 24, 48, 72, and 168 h (up to 7 days). The number of analgesics consumed at the same intervals was also recorded. Statistical analysis was performed using the Chi-Square test, Mann-Whitney test, and Independent Samples test, with the significance level set at 0.05.
Results
There was a statistically significant difference in post-operative pain between the cryotherapy group and the control group at 6 h after treatment (
P
< 0.05). However, post-operative pain levels were not significantly different at 18, 24, 48, 72, or 168 h after treatment (
P
> 0.05). Additionally, there was no statistically significant difference between the groups in terms of analgesic intake (
P
> 0.05).
Conclusion
Intracanal cryotherapy can effectively reduce short-term post-operative pain, but it has no effect on long-term pain or the need for analgesics.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Analgesics - therapeutic use
/ Cold
/ Complications and side effects
/ Dental Pulp Cavity - surgery
/ Diaries
/ Edetic Acid - therapeutic use
/ Female
/ Gutta-Percha - therapeutic use
/ Humans
/ Lavage
/ Male
/ Medicine
/ Nonsteroidal anti-inflammatory drugs
/ Oral and Maxillofacial Surgery
/ Pain
/ Pain, Postoperative - etiology
/ Pain, Postoperative - prevention & control
/ Pain, Postoperative - therapy
/ Patients
/ Root Canal Obturation - methods
/ Root Canal Preparation - instrumentation
/ Root Canal Preparation - methods
/ Root Canal Therapy - methods
/ Sodium Hypochlorite - therapeutic use
/ Teeth
