This study was to evaluate shear bond strength (SBS) and adhesive remnant index (ARI) of bioactive material (ACTIVA) and compare it with other orthodontic adhesive.
64 human upper premolar teeth were randomly divided into four equal groups (16 teeth in each group) according to the type of adhesive used. Then each group was subdivided into 2 subgroups (8 teeth each), one preserved in deionized water at 37°C for 30 days and one subgroup of each adhesive type was subjected to acid media.  Adhesive systems used in the study: Transbond XT group (non-fluoride releasing adhesive), Light Bond group (fluoride releasing adhesive), GC Fuji Ortho LC group (powder and liquid glass ionomer adhesive, and ACTIVA bioactive restorative material group. Using a universal testing machine (1 mm/min), SBS was assessed after 30 days. The ARI was evaluated by using a stereomicroscope with a 10 X magnification.
A significant difference (p<0.05) between the four tested adhesive systems in SBS in both groups. The mean SBS value in both groups was highest in Transbond XT group, followed by ACTIVA group, Light Bond group, and GC Fuji Ortho group. Only Fuji Ortho group showed a highly significant difference between the acid challenge and water storage. Regarding ARI test, ACTIVA has score II in water and score III in acid which mean much material left on tooth surface.
ACTIVA had a SBS that was higher than Light Bond and GC Fuji ortho LC, however lower than that of Transbond XT, but still above the clinically acceptable level.