Clinical trial Recruiting at 1 site Interventional Ages 18 to 65

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 typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment84 (estimated)
SponsorMarmara University
Academic / other
Locations1 site (Istanbul)
StatusRecruiting
StartedJune 15, 2026
Main results expectedDecember 15, 2026
Study endsDecember 18, 2026
Registry record updatedJune 29, 2026
Trial IDNCT07672873 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.