White spots after heavy consumption of sugary drinks

Correct answer: D. Demineralization

• A. 'Hypercalcification' is not a recognised clinical entity for this presentation.
• B. Enamel hyperplasia is not a recognised entity; the developmental defect of reduced enamel QUANTITY is hypoplasia.
• C. Hypocalcification is a DEVELOPMENTAL defect of enamel MATURATION present from the time of eruption, caused by an insult during amelogenesis (fluorosis, trauma, infection, systemic illness) — not by a recent dietary habit.
• D. Correct. An ACQUIRED white spot lesion following a high-frequency sugar/acid habit is the earliest clinical sign of caries — subsurface DEMINERALIZATION beneath an intact surface layer, producing a chalky opaque appearance because the porous subsurface scatters light. It is reversible with remineralisation therapy.

Note: ⚠️ SOURCE DISCREPANCY. The dietary history makes an ACQUIRED lesion — demineralization — the defensible answer; hypocalcification is a developmental defect present since eruption. The follow-up question keys MI Paste, a remineralising agent, which supports demineralization. Discuss as a group.

Correct answer: B. MI Paste (CPP-ACP)

• A. Stainless steel crowns are full-coverage restorations for grossly broken-down primary teeth, not for incipient white spots.
• B. Correct. MI Paste is a water-based crème containing CPP-ACP (casein phosphopeptide-amorphous calcium phosphate). It delivers bioavailable CALCIUM and PHOSPHATE to the tooth surface and raises their concentration in saliva, driving REMINERALIZATION of demineralised lesions. It is used alongside fluoride and dietary counselling.
• C. Extraction is entirely inappropriate for reversible enamel lesions.
• D. Restoring non-cavitated white spot lesions is over-treatment — they are reversible and cutting them starts an irreversible restorative cycle.

Note: MI Paste Plus adds 900 ppm fluoride. Caution: the CPP is milk-derived, so it is contraindicated in patients with a milk protein allergy.