A white spot lesion is, at its core, an optical problem with a biological cause. When subsurface enamel loses mineral, whether through caries-related demineralization or developmental hypomineralization, the spaces between the crystals widen and begin to scatter incident light, and the lesion becomes visible to the patient long before it poses any real threat to the tooth.^1,2 That visibility is exactly why these lesions weigh so heavily in everyday practice. For years, though, our response to them owed more to the habits of the operator than to the biology of the lesion in front of us. A clinician comfortable with fluoride varnish prescribed varnish; a colleague who had invested in an infiltration kit infiltrated; one trained largely in direct composite reached for a bur. What I want to ask here is whether, in 2026, we can finally claim to do better than that.