Introduction
dentine caries, caries arrest, caries, tooth, arrest
EARLY CHILDHOOD CARIES, CARIES, ARREST, CARIES
Early childhood caries (ECC), defined as any carious, filled, or missing tooth in children younger than 6 years of age [ECC can be controlled by the professional application of fluoridated agents such as fluoride varnish and Silver Diamine Fluoride (SDF). These fluoride agents can slow the progress of ECC lesions, especially at the initial stages and reduce the cost of treatment by decreasing the need for advanced and complex treatment, in addition to reducing the number of treatment visits and the need for general anesthesia. [A superior caries arrest effect was reported for SDF over NaF, especially for dentine caries in primary teeth [NaF varnish can remineralise enamel caries and SDF is effective in arresting dentine caries [Egypt has an ECC problem. The latest national oral health survey showed that the prevalence of ECC was 69.2% [This trial compared two interventions to arrest ECC in children 4 years old and younger: 38% SDF combined with 5% NaF varnish versus 38% SDF solution. The trial also assessed whether the arrest rate was affected by baseline lesion severity, measured by the International Caries Detection and Assessment System (ICDAS II) [