Radiographic assessment of glass ionomer restorations with and without prior application of Nano silver fluoride in occlusal carious molars treated with partial caries removal technique (Randomized clinical trial)

Research Abstract

Radiographic assessment of glass ionomer restorations with and without prior application of Nano silver fluoride in occlusal carious molars treated with partial caries removal technique (Split mouth Randomized clinical trial) Rahma A Ibrahim1, Mai M Akah2*, Noha S Taleb 3, Omayma M Safwat4 1BDS, Faculty of Dentistry, Cairo University, Cairo, Egypt. teaching assistant, Conservative Dentistry Department, Faculty of Dentistry, Beni suef University, Egypt. (E-mail: rahma.ibrahim@dentistry.cu.edu.eg) 2*PhD, Lecturer, Conservative Dentistry Department, Faculty of Dentistry, Cairo University, Cairo, Egypt. (E-mail: mai_mamdouh@dentistry.cu.edu.eg) 3PhD, Associate Professor, Oral and Maxillofacial Radiology Department, Faculty of Dentistry, Cairo University, Cairo, Egypt. (E-mail: noha.saleh@dentistry.cu.edu.eg) 4PhD, Professor, Conservative Dentistry Department, Faculty of Dentistry, Cairo University, Cairo, Egypt. (E-mail: omayma.safwat@dentistry.cu.edu.eg) Corresponding Author: Mai MamdouhAkah Address: 57, Hosny Ahmed Khalaf Street, apartment (18), Nasr City, Cairo, Egypt. Telephone: +2010066444572 Email: (mai_mamdouh@dentistry.cu.edu.eg) Objective: The aim of this trial was to assess the effectiveness of partial caries excavation technique with and without prior application of Nano-silver fluoride (NSF) solution on the quality of the remaining carious dentin, after 6 months follow up. Methods: Twenty-two patients having two contralateral deep occlusal carious molars with no signs of pulpal inflammation were recruited. The 44 cavities were prepared with partial caries excavation technique. Where, in group A; 0.2 ml of NSF solution was applied in the cavity and agitated for 2 minutes prior to the restoration. While, for group B; Glass ionomer (Equia forte) was directly applied into the cavity. Standardized digital periapical radiographs were taken at baseline and after 6 months. The carious dentin density and the dentin bridge formation were calculated using Digora for Windows (DFW) 2.5 software program. Comparison between the study groups was done using Mann Whitney U test for independent samples. Within group comparison between baseline and 6 months values was done using Wilcoxon Signed Rank test for paired samples. Results: Statistically significant increase of both the dentin density and the dentin bridge thickness was found for both groups after 6 months compared to baseline (p=0.001). However, the percentage change in the density after 6 months was significantly higher for group A that reached more than double that of group B (p= 0.008). While, no differences were found between both groups in the dentin bridge thickness (p= 0.885). Conclusions: Partial caries excavation for deep carious lesions showed significant remineralization of carious dentin and increase in dentin bridge thickness. Furthermore, NSF solution noted to be a promising agent helping in caries arrest.

Research Keywords

Radiographic assessment of glass ionomer restorations with and without prior application of Nano silver fluoride in occlusal carious molars treated with partial caries removal technique (Randomized clinical trial)