الفهرس 
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Abstract
Background: Silver Diammine Fluoride/Potassium Iodide is one of the most important root caries inhibitors that have recently been used in dentistry. where it has been proven effective by many researchers in arresting and controlling caries. Glass ionomer cement is the ideal choice in the advanced stages of root decay that requires restoration. There are some recommendations for the effectiveness of pre-treatment with fluoride diammine silver / potassium iodide for the surface of the roots of the teeth prepared for restoration before restoration with glass ionomer cement to ensure that the resistance of the dental material against decay in the place to be restored. However, the effect of this pre-treatment on the bonding strength between glass ionomer cement and root dentin in particular is still being studied. Therefore, this laboratory study was conducted to study this effect and to analyze the microanatomy between glass ionomer cement and dentine roots in the presence of pre-treatment with silver diammine fluoride/potassium iodide. Material and methods: 60 samples were prepared from the roots of the lower molars, then a superficial treatment was carried out on the outer surface and each group was divided into two subgroups, the first was restored without prior treatment and the other was treated with silver diammine fluoride / potassium iodide and then the restoration. Then the strength of the bond was measured and the descriptive anatomy of the surface of the samples was studied. Results: This study show that silver diammine fluoride/potassium iodide did not inversely affect the bonding strength between the restoration material and the dentin of the roots, nor did it affect the surface of the dentin attached to the restoration material through microdissection of the previously treated and untreated restored samples. Conclusion: The benefits of both silver diammine fluoride/potassium iodide as a caries inhibitor and glass ionomer cement filler as the optimum choice for the restoration of hollow root caries can be obtained without concerns about weakening the bonding strength of the filling with root dentin.