A Comparison of the Efficacy of Charcoal and Non-Charcoal-Bristled Electric Toothbrushes on Coffee Stain Removal and Surface Enamel Roughness: An in vitro study.
Ajai S; Agnihotri R · 2026 · Journal of dental hygiene : JDH
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Purpose Recently, charcoal-based oral hygiene products, such as toothpastes, have gained popularity due to their whitening and antibacterial properties. However, there is limited data on charcoal-bristle electric toothbrushes. The purpose…
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Metadata source: Europe PMC