Tooth K (primary upper right lateral incisor) has incipient INTERPROXIMAL caries on the radiograph. The MOST appropriate management is:

Correct answer: D. Silver diamine fluoride (SDF) to arrest the incipient carious lesion non-invasively

• A. Composite restoration also requires cavity preparation — not indicated for non-cavitated incipient lesions.
• B. Stainless steel crown is for severely decayed or after pulp treatment — not for incipient lesions.
• C. Amalgam requires cavity preparation and is reserved for cavitated lesions — not incipient.
• D. Correct. An INCIPIENT (early, non-cavitated) interproximal carious lesion in a primary tooth is best managed with NON-INVASIVE ARREST using SILVER DIAMINE FLUORIDE (SDF). SDF is the least expensive, requires no drilling, arrests active caries in both primary and permanent teeth, and is evidence-based for minimally invasive management.