Condition (MeSH)
Tooth Discoloration
ClinicalTrials.gov lists 102 trials for Tooth Discoloration or a narrower condition beneath it.
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Trials per phase (log scale)
102 of the 102 trials are tagged with Tooth Discoloration itself; the rest are tagged with a narrower condition beneath it.
When did Tooth Discoloration trials start? (18)
Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.
Trials over time, by phase
- Phase 1
- Phase 2
- Phase 3
- Phase 4
- Not applicable
- Observational
Top of scale: 13
Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.
| Year | Trials started |
|---|---|
| 2026 (partial year) | 11 |
| 2025 | 8 |
| 2024 | 13 |
| 2023 | 5 |
| 2022 | 10 |
| 2021 | 6 |
| 2019 | 7 |
| 2018 | 8 |
| 2017 | 9 |
| 2016 | 2 |
Showing 10 of 18 earlier years.
Forecast of the full-year count, planned starts included, not rows of this table: about 12 trials starting in 2026 and about 10 in 2027, the average of the 24 months through September, counted as registered and carried forward. The rows of this table count trials registered so far with a start date in the year, planned starts included; the forecast looks ahead to the count for the whole year, so it is not the same measure. In backtests on conditions of this size, forecasts made part-way through the year were typically off by about 28 percent and ran about 20 percent low against the count later registered; forecasts made before the year began were off by about 39 percent and ran about 37 percent low against the count later registered. These figures rest on a few years of history (target years from 2018 to 2025, varying by figure), place each condition as it is mapped today rather than as it was then, and score against a count for the newest year that was still being revised. Only condition series were scored.
Recruitment duration, a model prediction: 4 trials still running at the 2026-10-09 snapshot, fewer than the 5 needed for a median. Source: ClinicalTrials.gov / AACT (CTTI), public domain.
What phase are Tooth Discoloration trials in? (6)
Shown in this order: phase order.
Show the trials by phase as a table
| Phase | Trials |
|---|---|
| Phase 1 | 2 |
| Phase 2 | 1 |
| Phase 3 | 2 |
| Phase 4 | 7 |
| Not applicable | 84 |
| Observational | 6 |
How many Tooth Discoloration trials are recruiting? (7)
Shown in this order: the order a trial moves through, from not yet recruiting to unknown.
| Status | Trials |
|---|---|
| Not yet recruiting | 6 |
| Recruiting | 6 |
| Enrolling by invitation | 3 |
| Active, not recruiting | 5 |
| Completed | 62 |
Showing 5 of 7 statuses.
Status as registered on ClinicalTrials.gov. Each trial is counted once.
Which lead sponsors run the most Tooth Discoloration trials? (4)
Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.
| Sponsor | Trials |
|---|---|
| Boka LLC | 3 |
| Home Skinovations Ltd. | 3 |
| Glo Science, Inc. | 2 |
| McNeil AB | 2 |
Which drugs are being tested for Tooth Discoloration? (1)
Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.
| Drug | Trials |
|---|---|
| Potassium Nitrate Toothpaste | 3 |
Interventions as named in the registry (14)
Shown in this order: most trials first.
| Drug | Trials |
|---|---|
| Hydrogen peroxide 35% | 3 |
| Bleaching Agents | 2 |
| Carbamide Peroxide 10% | 2 |
| Whitening Toothpaste | 2 |
| Bleaching teeth | 2 |
Showing 5 of 14 interventions.
These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.
Which publications cover Tooth Discoloration? (150)
Shown in this order: major-topic papers first, then newest, then most linked to trials.
| Publication | Journal | Year | Major topic |
|---|---|---|---|
| Effect of personality characteristics on perception of tooth whitening outcome in young adults in long-term: a randomised, double-blind, placebo controlled trial. | Head & face medicine | 2025 | Yes |
| Effect of Blue Covarine Toothpastes on Tooth Colour: A Randomised Crossover Study. | International dental journal | 2025 | Yes |
| Coronal discoloration induced by calcium silicate-based cements used in full pulpotomy in mature permanent molars: a randomized clinical trial. | Clinical oral investigations | 2023 | Yes |
| Microabrasion in the management of enamel discolorations in paediatric dentistry: a systematic review. | The Journal of clinical pediatric dentistry | 2023 | Yes |
| Clinical efficacy of a novel radiofrequency toothbrush for tooth stain reduction and tooth whitening: A randomized controlled trial. | Journal of the American Dental Association (1939) | 2022 | Yes |
Showing 5 of 150 publications.
Not on this page
Not measured: delivery record.
Checked, with nothing recorded for this condition: serious adverse events in this condition's trials, prevalence, rare-disease identity, and sub-conditions in mesh.