Comparison of survival of stainless steel crowns cemented with glass ionomer cement and novel Protooth silicate cement in primary molar teeth.

Abstract

Introduction: Many studies have reported that stainless steel crowns (SSCs) are the most efficient solution in the management of mult-surface caries lesions in priamary molar teeth. The main reason of failures in SSC restoration is the loss of crown due to failure of cementation. Therefore, choosing the right material for cementing is very important for long-term survival of SSC. Recently, a new calcium silicate cement with fast setting time (Protooth) has been developed with the addition of fluoride (3.5% by weight) and zirconium oxide (10% by weight) for potential applications in dental crown. According to the previous studies and the positive laboratory characteristics of the new Protooth material compared to common cements and the lack of history of using this material to cement SSCs, in this clinical trial study we aimed to use this material for cementation of SSCs and comparing its survival with SSCs cemented with common glass ionomer cement. Materials and methods: A total of 816 teeth in 102 patients were included in the study. All teeth underwent pulpal treatment, and the pulp chamber was filled with zinc oxide eugenol cement as pulpal dressing agent under general anesthesia. Stainless-steel crowns in maxillary and mandibular primary molars on right segment was cemented with glass ionomer cement (Meron Glass Ionomer Luting Cement, Voco, Germany) and on the left segment with novel CSC (Ultrafast Protooth, Dentosolve, Aarhus, Denmark) (n = 408 teeth per cement). Present and retentive crowns in the function at the 12-month follow-up was defined as successful survival. Results: The overall survival rate of stainless-steel crowns (SSCs) following pulp treatment under general anesthesia in primary molars was 90.6% after 12 months, regardless of the cement type. SSC cemented with glass ionomer and novel CSC illustrated 97% and 84% survival rates, respectively. The clinical survival rate of SSC cemented with glass ionomer cement was significantly higher compared to those cemented with the novel. Conclusion: The findings of this clinical trial demonstrated that stainless-steel crowns cemented with glass ionomer cement exhibited a higher survival rate compared to those cemented with the novel CSC in pulp-treated primary molars with zinc oxide eugenol after 12 months.