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The effect of Hand Stainless-Steel and NiTi Rotary file on vertical root fracture. | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 8, Issue 2, 2011, Pages 86-92 | ||
| Authors | ||
| ; Dr. Musab Hamed Saeed B.D.S; ; ; Dr. Iman M. Al-Zaka B.D.S; Dr. Jamal A. Mehdi B.D.S; | ||
| Abstract | ||
| The aim of this study was to compare the fracture resistance of roots following root canal therapy using stainless-steel hand instrumentation (SS), Rotary Profile (PF) instrumentation, Rotary ProTaper instrumentation (PT). Forty-five mandibular premolars teeth were divided into three groups of 15 teeth each, according to the type of instrumentation. All root obturated with gutta-percha and AH26 sealer. The roots were vertically loaded using a universal testing machine. Fracture loads were analysed by ANOVA and LSD test, and fracture patterns were analyzed with Chi-Square. Profile & ProTaper groups have significantly lower fracture load than hand instruments group (P < 0.05). Chi-Square showed a significant differences between groups (P < 0.05) . | ||
| Keywords | ||
| KEYWORDS; Instrumentation; Fracture pattern | ||
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