59 - A Retrospective Study on Outcomes of SDF Treated Primary Teeth

Purpose: This study aims to evaluate the outcomes of primary teeth receiving 1, 2, 3 or 4 applications of silver diamine fluoride (SDF) to enhance evidence-based guidelines on SDF.

Methods: This retrospective study analyzed dental records from Nicklaus Children’s Hospital Dental Department of patients aged 1 to 5  treated with 1 or more SDF applications between January 2016 and December 2020. The primary outcome was whether additional interventions (e.g., composites, crowns, extractions, including emergency extractions) occurred within 24 months post-SDF. Outcomes were assessed using chi-square tests and odds ratios with confidence intervals.

Results: A total of 182 patients were included, with 37% receiving only one SDF application, 63% a second, 11% a third, and 2% a fourth. Of these, 47% received no further intervention after SDF. Age was associated with differences in the rate of the second SDF application (P=.009); those who did not receive it had twice the odds of further intervention than those who did (P=.026). ASA II patients were 2.30 times more likely to receive a second SDF application than ASA I (P=.019), while ASA I patients were 2.72 times more likely to receive intervention than ASA II (P= .002).

Conclusions: A second SDF application reduced subsequent interventions, demonstrating efficacy. In ASA II patients, increased second SDF applications and fewer further interventions indicate more conservative approaches were utilized. Although SDF was used more in younger patients, expanding its use in older age groups may also reduce invasive treatments. Research into these trends could further refine clinical practices.

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