Niveen Mohammed Elsobaihy  <br/><br/>
Efficacy of nickel-titanium rotary instrument versus stainless steel hand files in the removal of gutta percha with two different types of sealers :   An in-vitro study /  
 فاعلية ادوات النيكل تايتانيوم الالية مقابل مبارد الستانلس ستيل اليدوية فى ازالة الجتابركا مع نوعين من مادة الاغلاق :   دراسة معملية 
Niveen Mohammed Elsobaihy ; Supervised Khaled Mohammed Ezzat , Ghada Elhilaly Mohammed Eid 
 - Cairo :   Niveen Mohammed Elsobaihy ,   2009 
 - 115Leaves :   charts , facsimiles ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics 
<br/><br/> The aim of this study was to determine the effectiveness of rotary NiTi instruments versus hand instruments with the use of gutta- percha solvent eucalyptol in the removal of gutta- percha with two different types of sealers from both straight and curved canals during root canal retreatment . Canal wall cleanliness time for reteratment and procedural errors were evaluated 
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<br/><br/><label>Subjects--Index Terms: </label>Endodontic retreatment Eucalyptol solvent R- Endo NiTi rotary files