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IRCT20211231053574N1 IRCT 2022-12-19 Tehran University of Medical Sciences Effect of intra-canal cryotherapy on postoperative pain in single-visit endodontic retreatment: randomized clinical trial Effect of intra-canal cryotherapy on postoperative pain in single-visit endodontic retreatment: randomized clinical trial 2022-09-23 anticipated 46 Complete https://irct.ir/trial/65291 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive, Randomization description: 46 sealed envelopes are prepared which contain a sheet to determine the patient group. Half of the envelopes belong to the cold therapy group and a half to the control group. The patient randomly chooses an envelope, Blinding description: Before the treatment, the patient does not know which group he is in, and because of the anesthesia, he does not feel the cold caused by the irrigant during the treatment, and he will not notice his grouping. The person in charge of data collection does not know which group each patient was in. The person responsible for evaluating the data does not know what treatment each group received and only compares the group. N/A Post-operative pain after a single visit non-surgical root canal retreatment. Intervention 1: Intervention group: Patients who undergo non-surgical root canal retreatment in one visit, at the end of the treatment, and before the obturation, the root canals are irrigated with normal saline 2-4 degrees Celsius. Intervention 2: Control group: Patients who undergo non-surgical root canal retreatment under the same standard treatment as the intervention group, so that the only difference between the treatment process of the two groups is the normal saline temperature used for the final cleaning of the canal. Yes - There is a plan to make this available What will be shared: The amount of pain after treatment, the amount of painkillers consumed, age, sex, type of tooth When: 6 months after the results are published To whom: Universities and scientific and industrial institutions Conditions: Using for systematic reviews on the subject or conducting similar research in this field or making related devices to reduce pain after treatment Where to obtain: Endodontics department, Tehran university of medical sciences school of dentistry, North Kargar, postal code 1439955991 Mobile phone: 00989106498348 Email: m-kiafar@razi.tums.ac.ir How to obtain: Sending a written request with the mention of the university or institution requesting the information to the above address or via email or WhatsApp to the email or number listed and replying to the request after confirming the identity of the person making the request up to 1 month after receiving the request letter . Comments:
public Mohammad Mahdi Kiafar
Endodontics department, Tehran university of medical sciences school of dentistry, North Kargar
Tehran Iran (Islamic Republic of) 1439955991 +98 21 6636 9439 m-kiafar@razi.tums.ac.ir Tehran University of Medical Sciences scientific Mohammad Mahdi Kiafar
Endodontics department, Tehran university of medical sciences school of dentistry, North Kargar
Tehran Iran (Islamic Republic of) 1439955991 +98 21 6636 9439 m-kiafar@razi.tums.ac.ir Tehran University of Medical Sciences Iran (Islamic Republic of) Patients should be classified as ASA I or ASA II in terms of systemic health The teeth should have no spontaneous pain Teeth with periapical lesions or teeth with clear evidence of leakage. 18 years 60 years Both Teeth that cannot create a glide path to the apical foramen due to canal blockage or previous treatment errors Patients with chronic periapical abscess, sinus tract, internal or external resorption, periodontal problems Pregnant patients Patients with a history of trauma Patients with Temporomandibular disorders Patients who cannot take NSAIDs Patients who have a history of taking antibiotics, analgesics and anti-inflammatory agents before treatment Patients who smoke more than 10 cigarettes a day Treatment - Other Treatment - Other Intervention group: Patients who undergo non-surgical root canal retreatment in one visit, at the end of the treatment, and before the obturation, the root canals are irrigated with normal saline 2-4 degrees Celsius Control group: Patients who undergo non-surgical root canal retreatment under the same standard treatment as the intervention group, so that the only difference between the treatment process of the two groups is the normal saline temperature used for the final cleaning of the canal. Post-operative pain on the scale of Numerical Rating Scale. Timepoint: 6h-18h-24h-48h-72h-7d. Method of measurement: Numerical Rating Scale on the scale of 0-100. Tehran University of Medical Sciences Approved 2022-08-22 Research Ethics Committees of School of Dentistry- Tehran University of Medical Sciences Endodontics department, Tehran university of medical sciences school of dentistry, North Kargar Tehran Tehran Iran (Islamic Republic of)