Résumé
The purpose of this clinical study was to compare the retention rates of two flowable restorative systems [Admira Flow and Grandio Flow] with that of a conventional resin-based sealant [Fissurit F]. The study was planned as a clinical trial with a split-mouth design. A total of 122 sealants [38 Admira Flow, 41 Grandio Flow, 43 Fissurit F] were randomly applied to completely erupted permanent molars in 35 patients aged 9-20 years and followed up for 24 months. Data were analyzed using Pearson's X[2] and multiple comparison tests. At the end of the follow-up period, Fissurit F had higher retention rates [81.0%] than both Admira Flow [60.5%] and Grandio Flow [57.1%], with p < 0.05. However, there was no significant difference in caries development among groups [p > 0.05]. The two flowable composite resin materials used as fissure sealant were less retentive than the conventional resin sealant