Local dexamethasone to improve anesthesia in painful irreversible pulpitis
Official title: Comparison of the Effects of Submucosal and Intraligamentary Dexamethasone Administration on Anesthetic Success and Pain Control in Patients With Symptomatic Irreversible Pulpitis: A Randomized Clinical Trial
Run by Marmara University · NCT07672873 · Data updated 2026-11-12
This trial tests whether giving dexamethasone under the gum or between tooth-supporting ligaments helps make anesthetic blocks work better and reduce pain in adults with painful irreversible pulpitis in the lower molars.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 84 (estimated) |
| Sponsor | Marmara University Academic / other |
| Locations | 1 site (Istanbul) |
| Status | Recruiting |
| Started | June 15, 2026 |
| Main results expected | December 15, 2026 |
| Study ends | December 18, 2026 |
| Registry record updated | June 29, 2026 |
| Trial ID | NCT07672873 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18 to 65 with symptomatic irreversible pulpitis in a mandibular molar and good health (ASA I or II) who can consent and complete pain assessments.
✕Probably not a fit
Patients with smoking, systemic inflammatory conditions, or those not responding to standard anesthesia may receive no benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized, single-blind study compares three approaches to dexamethasone administration alongside a standard inferior alveolar nerve block in adults with symptomatic irreversible pulpitis of mandibular first or second molars. Participants are assigned to: placebo submucosal injection, submucosal dexamethasone, or intraligamentary dexamethasone, with the primary outcome being anesthetic success during access and pulp removal measured by HP-VAS. Secondary outcomes include postoperative pain and other tolerability measures. The trial aims to determine if local dexamethasone can improve anesthesia success and pain control without adding undue risk. Enrollment targets 84 participants across Marmara University Faculty of Dentistry in Istanbul.
Why it matters
Potential benefit: If successful, local dexamethasone could improve anesthesia success and reduce pain during tooth procedures in SIP patients.
How similar studies have gone: Previous research has explored corticosteroids to enhance anesthesia, with mixed results; this study adds direct comparison of administration routes in SIP.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients aged 18 to 65 years. * ASA I or ASA II systemic health status. * Symptomatic irreversible pulpitis in a mandibular molar tooth. * Positive response to pulp sensibility tests. * Preoperative pain score greater than 54 mm on the Heft-Parker Visual Analog Scale (HP-VAS). * Ability to understand the study procedures and provide written informed consent. Exclusion Criteria: * Pregnancy or lactation. * Allergy or contraindication to articaine, dexamethasone, or study-related medications. * Use of analgesics, anti-inflammatory drugs, or antibiotics within the previous 12 hours. * Presence of periapical radiolucency or diagnosis of pulpal necrosis. * Significant systemic disease (ASA III or higher). * Inability to complete pain assessment forms or follow study procedures.
Where it's running
-
Marmara University Faculty of Dentistry
Istanbul, Turkey (Türkiye) Recruiting
Study contacts
- Study coordinator: Elif İrem Altıntaş, Research Assistant
- Email: eialtintas@icloud.com
- Phone: +905425491411
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Intraligamentary injection versus inferior alveolar nerve block for painful lower molar pulpitis
This trial will see if an intraligamentary injection or an inferior alveolar nerve block gives better pain control for adults having root canal treatment of a painful lower molar with symptomatic irreversible pulpitis.
-
CYT-1010 in healthy volunteers and after third molar extraction
This trial tests CYT-1010, at single rising doses, for safety and tolerability in healthy adults and in people experiencing pain after removing wisdom teeth.
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This trial tests whether acetaminophen alone, an NSAID, or a combination of trypsin-chymotrypsin with acetaminophen best relieves pain after a single-visit root canal in adults with symptomatic irreversible pulpitis.
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Partial pulpotomy in mature lower molars with SIP using calcium hypochlorite vs sodium hypochlorite
This trial tests whether washing the exposed pulp with calcium hypochlorite or with sodium hypochlorite during partial pulpotomy in adults helps healing and reduces pain.
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Compare how much pain kids feel during local anesthesia with what a parent thinks they feel
This study tests whether a parent can accurately gauge their child’s pain during local anesthesia during dental treatment.
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Using intraoral cold to improve numbness in lower front teeth
This trial will see if applying cold inside the mouth helps buccal infiltration anesthesia work better for adults with symptomatic irreversible pulpitis in a lower front tooth.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.