Effect of newer irrigating solution Triton on the root dentinal surface roughness and microhardness: An in vitro study

Aim: The aim of this study was to determine the root dentinal surface roughness and microhardness using Triton in comparison to Qmix 2 in 1 solution and 2.5% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA). Materials and Methods: Eighty human-extracted single-rooted mandibular premolar teeth were cleaned, decoronated, and split into two halves, obtaining 160 specimens. Half of the specimens ( n = 80) were subjected to surface roughness and another half ( n = 80) to microhardness. For both tests, specimens were divided into four groups ( n = 20) and subjected to 10 ml irrigant for 5 mins. Group 1: Normal saline (control); Group 2: 2.5% NaOCl and 17% EDTA; Group 3: Qmix 2 in 1; and Group 4: Triton. Each group was split into subgroups A and B ( n = 10) for before and after irrigation and subjected to surface roughness and Vickers microhardness. Statistical analysis was done using one-way analysis of variance and post hoc Tuckey and unpaired Student’s t -tests ( P < 0.05). Results: The highest surface roughness and microhardness were found after irrigation in all groups. The highest roughness was found in Group 2 (1.714 µm) followed by Group 3 (1.711 µm), 4 (1.473 µm), and least in Group 1 (1.194 µm), whereas the highest microhardness was found in the control group (85.5 VHN) followed by groups 4 (78.9 VHN), 3 (56.5 VHN) and lowest in Group 2 (53.3 VHN) ( P < 0.05). Conclusion: Triton exhibited a minimal effect on root dentin surface roughness and microhardness than Qmix 2 in 1 and 2.5% NaOCl with 17% EDTA.