The Comparative Evaluation of Cyclic Fatique Resistance of Different Heat-treated NiTi Instruments
Articles > Article · 2020
Authors: Gözde KANDEMİR DEMİRCİ, Seniha Senem MİÇOOĞULLARI, Burcu ŞEREFOĞLU POLAT, Mehmet Emin KAVAL, Mehmet Kemal ÇALIŞKAN
Ege Üniversitesi Diş Hekimliği Fakültesi, National Refreed University Journal, National, TR DİZİN (ULAKBİM), 2020, vol 41, pp 209-213
Summary
<p><br></p><p class="p2" style="margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 8px; line-height: normal; font-family: Arial;"><span class="s1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 12px; line-height: normal;"><span class="Apple-converted-space"> </span></span><i>Objective: To compare the cyclic fatigue resistance of different heat-treated NiTi files.<span class="Apple-converted-space"> </span></i></p><p class="p2" style="margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 8px; line-height: normal; font-family: Arial;"><i>Methods: Scope RS Gold (25.06), Scope RS Blue (25.06) and Scope RS controlled memory (CM) (25.06) nickel titanium files were included in the present study (n=12). According to the manufacturer instruction files were rotated in an artificial stainless steel canal with 3 mm radius and 60° angle of curvature. The time to failure of files was recorded and the number of cycles to failure of the files were calculated. The data were analysed with One-way ANOVA and post-hoc Tukey tests.<span class="Apple-converted-space"> </span></i></p><p class="p2" style="margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 8px; line-height: normal; font-family: Arial;"><i>Results: The mean number of cycles to failure of files highest to lowest was Scope RS CM, Scope RS Gold and Scope RS Blue, respectively. A statistically significant difference was noted between Scope CM and the other two groups (p<0.05). There was no statistically significant difference between the Scope RS Blue and Scope RS Gold groups (p>0.05).<span class="Apple-converted-space"> </span></i></p><p class="p2" style="margin-bottom: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 8px; line-height: normal; font-family: Arial;"><i>Conclusion: Within the limitation of the present study the cyclic fatigue resistance of Scope RS CM nickel titanium files was greater than the Scope RS Blue and Scope RS Gold nickel titanium files.<span class="Apple-converted-space"> </span></i></p>