Answers are grounded in this paper and cite their sources.
Sound premolars were demineralized for 4, 6, 9, and 11 days in buffer solutions of either pH 4, 4.5, or 5. Lesions were examined by quantitative microradiography. The thickness of the surface layer, depth of the lesion and degree of demineralization were studied as a function of pH and demineralization time.
No takes yet. Share an insight, caveat, or question.
Groeneveld et al. (2009) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: