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Browsing by Author Nagy, Mohamed Mokhtar

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  • Cleaning ability of rotary NiTi systems with different kinematics

    • Authors: Amira Galal Ismail,;  Advisor: -;  Participants: Nagy, Mohamed Mokhtar; Galal, Manar (2019)

  • No significant difference was found between the three groups in the coronal one third (P = 0.071). However, the TFA group recorded a significantly higher percentage of debris in the middle and apical thirds (P < 0.001 and P < 0.001, respectively). Under the conditions of this study, adaptive motion produced more debris than the reciprocating and the continuous rotating motions.
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  • Cutting efficiency of two heat-treated files in rotation and reciprocation motions

    • Authors: Kataia, Engy M.;  Advisor: -;  Participants: Nagy, Mohamed Mokhtar; Kataia, Mohamed M.; Khalil, Hala Fayek (2021)

  • Resin canals prepared using Fanta AF One rotary system showed significantly higher weight loss than Azure rotary system in both rotation and reciprocation (P < 0.001). Insignificant difference was reported for rotation and reciprocation movements in both file systems.
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  • Effect of different kinematics and operational temperature on cyclic fatigue resistance of rotary NiTi systems

    • Authors: Ismail, Amira Galal;  Advisor: -;  Participants: Galal, Manar; Nagy, Mohamed Mokhtar (2020)

  • The continuous rotation motion exhibited significantly lower cyclic fatigue resistance than reciprocating or adaptive motion (p ≤ 0.001) at 37 °C and 20 °C. Cyclic fatigue resistance of NiTi files was affected by the motion used during root canal preparation. Reciprocation motion and adaptive motion resulted in extended fatigue. The operational temperature affects the cyclic fatigue resistance of the twisted file.
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  • Shaping ability of two heat treated rotary NiTi instruments using different kinematics/in vitro study

    • Authors: Kataia, Engy M.;  Advisor: -;  Participants: Nagy, Mohamed Mokhtar; Kataia, Mohamed M.; Khalil, Hala Fayek (2021)

  • At the apical level, no statistically significant difference was found between both files in either rotation or reciprocation. However, reciprocation motion showed significantly lower transportation levels in both files. No significant difference was found among groups at the middle and cervical levels. Regarding preparation time, Reciprocation in both groups was significantly longer.