Measuring bite force to understand dental pain
Official title: Exploring a Neuropathic Basis for Acute Pulpal Pain- a Clinical Pilot
Run by Rutgers, The State University of New Jersey · NCT06843525 · Data updated 2026-11-12
This study is testing how strong people's bite is when they have dental pain to see if it can help improve pain management and reduce the need for opioids during dental treatments.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 89 Years |
| Sex | All |
| Enrollment | 112 (estimated) |
| Sponsor | Rutgers, The State University of New Jersey Academic / other |
| Locations | 1 site (Newark, New Jersey) |
| Status | Recruiting |
| Started | May 16, 2025 |
| Main results expected | April 1, 2026 |
| Study ends | November 1, 2026 |
| Registry record updated | July 24, 2025 |
| Trial ID | NCT06843525 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults aged 18 and older who require dental fillings or root canal treatments on lower molars and can provide informed consent.
✕Probably not a fit
Patients who are prisoners, children, pregnant women, or those with cognitive disabilities will not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to quantify the bite force in patients experiencing dental pain due to conditions like irreversible pulpitis and apical periodontitis. By using the FDA-approved Innobyte® device, the study seeks to validate neuropathic mechanisms such as mechanical allodynia and central sensitization as therapeutic targets. The goal is to improve pain assessment and support the use of non-opioid pain medications, potentially reducing reliance on opioids in emergency settings. The study focuses on individuals receiving dental treatments for lower molars and aims to provide insights that could benefit underserved populations with limited access to dental care.
Why it matters
Potential benefit: If successful, this study could lead to better pain management strategies for dental patients, reducing the need for opioid medications.
How similar studies have gone: While this approach is innovative, similar studies exploring non-opioid pain management in dental settings have shown promise, indicating potential for success.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Individuals who present for * a lower 1st or 2nd molar filling in an otherwise healthy tooth, i.e., does not have large decay that has already infected the nerve of the tooth, or there is increased mobility due to gum disease or a root canal treatment on a lower molar tooth and there is no history of injury to the tooth, or * a lower molar root canal treatment, and * are 18 years or older * capable of providing informed consent, are eligible to participate in the study, as long as they satisfy the criteria below. * The opposing tooth is present, symptom-free and has adequate tooth structure that allows it to make contact with the tooth it bites against, and * are English-speaking Exclusion Criteria: * Any patient, even if satisfying the criteria above, may not take part if any of the below is true: * Compromised ability to guard their self-interest, for e.g., prisoners, children, pregnant women, patients with intellectual/cognitive disability are not enrolled in the study. * Take prescription pain medications for long-standing health conditions * Addiction/ substance dependence * Swelling that extends beyond the tooth in question * Are already taking an antibiotic to treat an infection/swelling * Missing complementary molar on the same or opposite side of the mouth * Missing more than 2 teeth in a quadrant (other than 3rd molars) * Any other molar in the pair either on the side of the tooth of interest or the molar pair on the other side is painful to biting pressure or upon 'tapping' the tooth with the handle of the mouth mirror * The patient has taken a pain medication within the last 6 hours
Where it's running
-
Rutgers School of Dental Medicine
Newark, New Jersey, United States Recruiting
Study contacts
- Principal investigator: Varvara Vanessa Chrepa, DDS, MS, PhD — Rutgers School of Dental Medicine
- Study coordinator: Gayathri D Subramanian, PhD, DMD
- Email: subramga@sdm.rutgers.edu
- Phone: 973 972 3418
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Activation techniques in antimicrobial photodynamic therapy for retreatment of apical periodontitis
This trial tests whether different methods of agitating methylene blue during antimicrobial photodynamic therapy can improve healing and reduce infection in teeth that prior root canals had treated for asymptomatic apical periodontitis.
-
Conventional and nano-metronidazole irrigation with or without ultrasonic activation for necrotic single-rooted teeth with apical periodontitis
This study tests whether conventional metronidazole or a nano-formulated version, used as root canal irrigants with or without ultrasonic activation, can reduce post-operative pain and endotoxin levels in necrotic single-rooted teeth with apical periodontitis.
-
Post-operative Pain and Healing After Root Canal Re-Treatment Using Laser-Activated Irrigation vs Sonic or No Activation
This study tests whether laser-activated irrigation or sonic activation helps reduce post-operative pain and improve healing after re-treating a tooth with persistent apical inflammation, compared to conventional needle irrigation.
-
Impact of a 1-file rotary system on debris extrusion during root canal treatment
This study tests whether using a single-file AF One system during root canal shaping reduces postoperative discomfort in teeth with irreversible pulpitis and mature roots.
-
Different endodontic motor motions during root canals and their effect on pain
This study tests whether using different apical motion modes on endodontic motors during root canal work changes postoperative pain in adults with chronic apical periodontitis.
-
Two irrigation methods and activation techniques during a single-visit retreatment: does pain differ after root canal retreatment?
This study tests whether two different irrigation approaches and activation methods change postoperative pain after a single-visit retreatment in adults with a prior root canal.
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.