Background: England is a high-income country with a predominantly publicly funded health system organised around the National Health Service (NHS). Yet children’s oral health outcomes continue to reflect a persistent access and prevention gap, with late presentation and hospital-based extractions remaining common. Objective: To present a policy-facing, evidence-informed critique of how structural constraints in NHS dentistry shape paediatric clinical pathways—often converting “advances” (biological caries management, silver diamine fluoride, and planned extraction pathways for compromised permanent molars) into compensations for service failure rather than patient-centred progress. Methods: Narrative commentary drawing on UK official statistics and major policy reports, alongside key clinical trials and evidence syntheses relevant to contemporary paediatric dentistry. Results: The dominant failure mode is not a lack of clinical tools, but impaired delivery: restricted access to routine NHS dentistry, contract and workforce pressures, and unequal prevention coverage. These pressures correlate with crisis-led care (including extractions under general anaesthesia), and can distort how minimally invasive/biological interventions are used—functioning as endpoints rather than bridges to definitive care. In parallel, guidance for compromised first permanent molars (including those affected by MIH) risks being operationalised as an “efficiency pathway” when restorative capacity is constrained. Conclusions: In NHS England, paediatric dental “advances” cannot be judged solely by trial efficacy; they must be evaluated within a delivery system that currently selects for late-stage, irreversible outcomes. A credible “advances” agenda requires contract reform, workforce retention, prevention at scale, and explicit safeguards against the normalisation of extraction-only trajectories.