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Redefining Modern Restorative Dentistry Through Silver Diamine Fluoride: Histological, Chemotherapeutic, and Public Health Dimensions
Robert Dennison , Department of Cariology and Operative Dentistry, Faculty of Dental Sciences, University of Copenhagen, DenmarkAbstract
Dental caries remains a persistent global health concern, necessitating a continuous evolution in therapeutic modalities toward non-invasive, cost-effective, and highly scalable interventions. Over the past several decades, silver diamine fluoride (SDF) has transitioned from an empirical adjunctive therapy to a cornerstone of chemotherapeutic cariology. This comprehensive original research article conducts an exhaustive investigation into the multi-tiered mechanical, chemical, biological, and clinical characteristics of SDF. Synthesizing data across diverse analytical frameworks, this paper evaluates the precise aqueous kinetics and physicochemical configurations of 38% SDF formulations, mapping their direct chemical reactions with demineralized human hydroxyapatite and dental matrices. The dual-action therapeutic vectors of SDF are systematically dissected: the fluoride ion profile drives the synthesis of fluorohydroxyapatite and the inhibition of host-derived matrix metalloproteinases and cathepsins, while the silver ion fraction induces widespread bacterial cell wall disruption, enzyme denaturation, metabolic arrest, and the persistent zombie effect within pathogenic biofilms. Furthermore, this study addresses the historical controversy surrounding pulpal vitality and deep carious lesions, reviewing histological data from human and animal models subjected to direct and indirect pulp capping with varying concentrations of SDF. Clinically, this article evaluates the therapeutic efficacy of SDF across vulnerable cohorts, demonstrating significant success rates in arresting early childhood caries and hypersensitive lesions, particularly when managed via structured protocols designed for public insurance and underserved frameworks. The paper simultaneously scrutinizes parental acceptance dynamics, the mitigation of silver-induced cosmetic discoloration using potassium iodide adjuncts, and the implications of post-operative protocols on material retention. Ultimately, this comprehensive synthesis establishes a definitive, evidence-based paradigm for the integration of SDF into modern restorative dentistry and public health initiatives.
Keywords
Silver Diamine Fluoride, Caries Arrest, Biomimetic Remineralization, Pulp-Dentin Complex
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