Comparison of Time Required by D-RaCe, R-Endo and Mtwo Instruments for Retreatment: An in vitro Study
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چکیده
منابع مشابه
Comparison of Time Required by D-RaCe, R-Endo and Mtwo Instruments for Retreatment: An in vitro Study.
INTRODUCTION To evaluate and compare the amount of time required by three rotary NiTi instruments in removing gutta-percha from root canal during retreatment with hand file as control. MATERIALS AND METHODS Eighty human mandibular premolars with single straight root canals were prepared and obturated by cold lateral condensation with gutta-percha and AH Plus sealer. After two weeks, the 80 te...
متن کاملIn-vitro Comparison of NiTi Tee, RaCe and Protaper Instruments in Dentinal Crack Formation
Background and Aim:Root canal preparation with rotary instruments may cause dentinal cracks leading to tooth fracture. The aim of this study was to compare three different rotary systems ProTaper, RaCe and Niti Tee on formation of dentinal cracks following root canal preparation. Materials and Methods: In this experimental study, 50 extracted mandibular first molars were selected. Teeth having ...
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this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
effectiveness of hedstroum files and rotary k3 instruments in removal of obturation materials during retreatment in curved canals
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ژورنال
عنوان ژورنال: JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH
سال: 2015
ISSN: 2249-782X
DOI: 10.7860/jcdr/2015/11100.5596