Using a nerve block to manage pain and swelling in jaw surgery

The Effect of Sphenopalatine Ganglion Block on Intraoperative Analgesia, Postoperative Edema, and Pain in Bimaxillary Orthognathic Surgery

NA · Bezmialem Vakif University · NCT06933680

This study is testing if a special nerve block can help adults aged 18 to 45 have less pain and swelling after jaw surgery compared to a placebo treatment.

Quick facts

PhaseNA
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years to 45 Years
SexAll
SponsorBezmialem Vakif University (other)
Locations1 site (Istanbul, Fatih)
Trial IDNCT06933680 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of sphenopalatine ganglion (SPG) block in controlling intraoperative pain and reducing postoperative swelling in adults undergoing bimaxillary orthognathic surgery. Participants aged 18 to 45 will be randomly assigned to receive either an SPG block or a sham block before their surgery. The study aims to compare pain levels, opioid use, and swelling between the two groups over a one-month postoperative period. By assessing these outcomes, researchers hope to determine if the SPG block can improve recovery and reduce complications associated with the surgery.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 45 who require bimaxillary orthognathic surgery and have an ASA score of I-II.

Not a fit: Patients with local anesthetic allergies, chronic pain, or certain medical conditions such as diabetes or bleeding disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly enhance pain management and reduce recovery time for patients undergoing jaw surgery.

How similar studies have performed: While the use of SPG blocks for pain management is promising, this specific application in bimaxillary orthognathic surgery is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with bimaxillary orthognathic surgery indication
* Patients with American Society of Anesthesiologistsscores (ASA) I-II
* Patients between the ages of 18-45

Exclusion Criteria:

* Patients with local anesthetic allergy
* Patients undergoing genioplasty
* Syndromes associated with secondary deformities in addition to jaw deformities
* Patients with a history of jaw surgery
* Patients with uncontrolled hypertension
* Patients with a history of substance abuse
* Patients with chronic pain lasting more than 3 months
* Patients using analgesic and hypnotic agents for more than 2 weeks
* Recent situations that may cause facial edema (tooth extraction, facial trauma, etc.)
* Patients with psychiatric disorders
* Patients with diabetes mellitus
* Patients with bleeding disorders

Where this trial is running

Istanbul, Fatih

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Bimaxillar Surgery, Sphenopalatine Ganglion Block, sphenopalatine ganglion block, pain, bimaxillary orthognathic surgery, edema, swelling

Last reviewed 2026-05-15 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.