Kök kanal geometrisinin ve iğne tipinin apikalden irrigan taşmasına etkisi: ex vivo çalışma

Objective: The aim was to evaluate the effect of root canal geometry on amount apical extrusion irrigant, by testing different tapers and needle types. Materials Method: Forty-three extracted single-rooted human mandibular premolar teeth were accessed. Experimental groups instrumented produce increasing amounts taper in each successive group: Group 1 (#25/.02), 2 (#25/.04), 3 (#25/.06), 4 (#25/.08) (n=43, each). Irrigation done sequentially using a 30-G open-ended flat needle, close-ended side-vented 27-G beveled needle. Flat needles placed mm short apex, while as far possible without binding. Extruded irrigant collected preweighed foam cubes. Statistical significance set at p<0.05. Results: An increase led decrease extruded for (p<0.05; Groups versus 4) 4), but no significant found greater with than all most (p<0.05). generally associated least extrusion. Conclusion: Given constant insertion depth, apically decreased increased. greatest observed respectively.