An interventional study of cold NaOCl , dexamethasone and NaOCl, dexamethasone in Post Operative Pain, sponsored by Suez Canal University. Not yet recruiting. Open to participants aged 20 Years to 50 Years. Per ClinicalTrials.gov, last updated 2026-07-31.
Sponsored by Suez Canal University · Not applicable, Interventional, and Other
Evaluation and comparing the effect of cryotherapy and dexamethasone on inflammatory mediators and post-operative pain in symptomatic irreversible pulpitis with acute apical periodontitis.
sixty patients with single root teeth diagnosed with symptomatic irreversible pulpitis with acute apical periodontitis will be treated in two visits with time interval 72 hrs. Later, they will be randomized into four groups according to the type of irrigant used, group (A): (cold NaOCl , dexamethasone) for 1st visit and cold saline as final rinse for 2nd visit, group (B): ( NaOCl, dexamethasone) for 1st visit and saline as final rinse for 2nd visit (room temperature), group (C): cold NaOCl and cold saline and group D: NaOCl and saline room temperature as control group. Each group will be prepared with trunatomy rotary files according to manufactures instruction. Inflammatory mediators IL-8 and substance P will be assessed by absorbent paper points after access preparation and before obturation using ELISA test. Post-operative pain will be measured after first visit at 6,12, 24,48,72 hrs. then after second visit at 12,24,48,72hrs and 7 days using the visual analogue scale.
5,640 studies on the registry are indexed under Pain, Postoperative; 1,230 are open to participants now.
This study's planned enrollment of 60 is below the median of 75 across 4,821 interventional studies indexed under Pain, Postoperative.
Browse Pain, Postoperative studies →Suez Canal University is the lead sponsor of 164 studies on the registry; 38 are open to participants now.
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Exclusion Criteria:
Non restorable teeth.
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
for 1st visit and cold saline as final rinse for 2nd visit
Combination Product: cold NaOCl , dexamethasone
for 1st visit and saline as final rinse for 2nd visit (room temperature)
Combination Product: NaOCl, dexamethasone
for both visits final rinse for 2nd visit
Combination Product: cold NaOCl and cold saline
for both visits final rinse for 2nd visit (room temperature)
Combination Product: NaOCl and saline
irrigation solution
irrigation solution
irrigation solution
irrigation solution
post-operative pain
VAS scale (visual analogue scale)
Time frame: 7 days
No study locations are listed for this record.
Start is estimated for Aug 2026; primary completion for Sep 2026, 1 month later.
Of 2,089 non-industry interventional studies with no phase under Pain, Postoperative, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 23. This study's planned 1 month is below that.
Counting every sponsor, half of 2,102 studies reached it within 11 months; a quarter within 6 and three quarters within 23.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Dexamethasone