Sealants
If you were to pick one area where there is good research not getting into dental practice, what might it be?
Sealants! A clinical practice guideline by the ADA found that sealants reduce caries incidence of carious lesions by about 75%. This is a large magnitude of effect, yet qualitative studies have shown that only about 40% of dentists use sealants in their practices.
Source: JADA 2016:147(8):672-682