Shear bond strength evaluation of an alkasite restorative material to three different liners with and without using adhesive system: An in vitro study

AIMS: The aim of the study is to compare and evaluate the bonding ability of alkasite restorative material to TheraCal LC™ (TLC), Biodentine™ (BD), resin-modified glass ionomer cement (RMGIC) using an universal adhesive and characterizing their failure modes. SUBJECTS AND METHODS: Ninety extracted intact human molars were divided into three groups of (n = 30) as Group I (TLC), Group II (RMGIC), and Group III (BD). Each group was subdivided into two based on application of universal adhesive. Cention N was bonded to each sample. Shear bond strength analysis was performed. The data were analyzed using SPSS version 22 software. RESULTS: No significant difference was observed between Group I and Group II (P < 0.05) while Group III showed the least bond strength (P < 0.05). The modes of failure were predominantly cohesive in Groups I and III (TLC and BD) while RMGIC showed mixed and adhesive failures. CONCLUSIONS: The bond strength of Cention N to TLC and RMGIC was similar and significantly higher than that of BD following application of universal adhesive.