Comparison of the shaping ability of three nickel-titanium instruments in preparing oval-shaped canals
WU Wan-cui
WU Bu-ling
CHEN Guang-sheng
Abstract：Abstract] AIM:To compare the shaping ability of three new nickel -titanium root canal instruments in pre-paring oval-shaped canals.METHODS:45 mandibular anterior teeth with single oval canal were collected and pre-pared with self adjusting file (SAF),ProTaper Universal and ProTaper Next system respectively(n =15).Micro-CT examination was performed before and after root canal preparation.The volume of untreated canal,volume of dentin re-moved after preparation,amount of uninstrumented area and the area of dentin increased after preparation were meas-ured.RESULTS:Amount of uninstrumented area was statistically less in Group SAF than that in Group ProTaper Uni-versal and ProTaper Next (P <0.05).There were no significant differences among the three groups concerning volume of untreated canal,volume of dentin removed,amount of uninstrumented area and area of dentin increased after prepa-ration (P >0.05).CONCLUSION:SAF has better oval-shaped canal preparation ability.
Keywords：micro-computed tomographynickel-titanium instrumentroot canal preparationoval-shaped canal
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 166-168,183 )