Evaluating Three Ways to Test Tooth Health

This study is looking at three different ways to test the health of your tooth pulp (the soft tissue inside your tooth). These tests are Laser Doppler Flowmetry, cold testing, and electric pulp testing. Researchers want to see how well Laser Doppler Flowmetry works compared to the other two common tests. You can join if you are 18 or older, need a root canal (endodontic treatment), and are willing to have two extra vitality tests that will take about 20 minutes. The study will measure how many teeth are correctly identified as healthy or unhealthy by each test after one year. The current recruitment status is unclear.

Study design
This is an observational study, meaning researchers will watch and record information without giving new treatments. It plans to include 150 participants.
What's involved
You would undergo two additional vitality tests, which will take about 20 minutes of extra time, before your endodontic treatment.
Compensation
Not stated in the trial record.
Follow-up
The study will measure outcomes one year after the pulp vitality testing.

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NCT02636504

Evaluation of Three Pulp Vitality Tests

Not Yet Recruiting
Not specifiedAges 18+Observational
Columbia University
~150 participants
Updated 2026-02-04 on ClinicalTrials.gov
What's tested:Laser Doppler Flowmetry

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
The number of teeth showing the true positive, true negative, false positive, and false negative after pulp vitality testing
Measured over 1 year
Dental Pulp Diseases
Dental Pulp Vitality Testing
1 sites across 1 states
New York1
  • Sahng G Kim, DDS, MS · PRINCIPAL_INVESTIGATOR · Columbia University College of Dental Medicine

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Eligibility criteria

Exclusion

No group of special subjects or vulnerable population is being targeted in this study.
  • The number of teeth showing the true positive, true negative, false positive, and false negative after pulp vitality testing1 year

    Patients who present to the endodontic clinic for a consultation visit prior to treatment. The patient will have three types of pulp vitality tests done on the tooth that is to receive endodontic treatment. The number of teeth that show the true positive, true negative, false positive, and false negative after pulp vitality testing will be measured. For example, a tooth that is diagnosed nonvital based on the pulp vitality testing will be confirmed when endodontic treatment is performed. If there is a discrepancy, it can be counted as false negative. When a tooth is diagnosed vital based on the pulp testing and confirmed to be vital, it can be counted as true positive. When a tooth is diagnosed vital based on the pulp testing and confirmed to be nonvital, it can be counted as false positive. When a tooth is diagnosed nonvital and confirmed novital, it is counted as true negative.