Post Title

This study aimed to evaluate the periodontal responses of subgingival proximal margins elevated using different restorative materials. One hundred and twenty proximal cavities with dentin/cementum gingival margins were elevated using one of four materials and completed with the same overlaying resin composite, namely resin-modified glass ionomer, glass hybrid, flowable bulk-fill resin composite, or bioactive ionic resin. At varying time points after restoration, including baseline, six months, one, and two years, evaluations included examination of periodontal parameters and the radiographic distance between the restoration margin and bone crest. Appropriate statistical analysis was performed. The values of all periodontal parameters increased with time, although only the increases in plaque index and probing depth over time within each material group were statistically significant. There were no statistically significant differences in any of the periodontal parameters between the different materials within the same evaluation period nor between different time points or material groups in the radiographic distances between the restoration margin and bone crest. Both glass ionomer-based and resin-based materials were periodontally safe as subgingival open sandwich restorations.