نتایج جستجو برای: reciproc file rotary system
تعداد نتایج: 2269593 فیلتر نتایج به سال:
Background and Aim: The role of applying rotary instruments in reducing preparation time and proper root canal preparation have been approved in permanent teeth. The aim of this study was to compare the rotary instruments (Hero642) and K-files in root canal preparation of primary molars. Time and canal transportation were compared. Materials and Methods: In this experimental, invitro study, 30...
Abstract Background The purpose of this study was to evaluate the changes in canal volume after root preparation vivo with 3 different single-file techniques (Reciproc-Blue®, WaveOne-Gold® and XP-EndoShaper®), a new method using CBCT 3D reconstruction. Methods In prospective study, thirty human lower premolars from healthy patients were used, which extraction indicated for orthodontic reasons. ...
BACKGROUND Apical extrusion of debris during instrumentation is detrimental to the patient. AIM The aim of this study was to evaluate the apical extrusion of debris during root canal instrumentation using two single file rotary Ni-Ti systems. MATERIALS AND METHODS Thirty freshly extracted mandibular premolars with straight roots were sterilized and divided into two groups instrumented using...
AIM To assess two contemporary rotary instrumenting systems subjectively and objectively in a pre-clinical student course setting. METHODOLOGY Undergraduate dental students (n = 44) prepared mesiolingual canals of 3D-printed mandibular molar replicas (RepliDens, Zurich, Switzerland). The HyFlex and BioRace rotary systems, both previously unknown to the students, were used according to the man...
A comparison of transportation and time of canal preparation with stainless steel hand instruments and Ni-Ti rotary systems (In – Vitro) Dr. MR. Sharifian* - Dr. MH. Nekoofar* - Dr. P. Motahari** - Dr. A. Tavakoli*** *-Assistant Professor of Endodontics Dept. – Faculty of Dentistry – Tehran University of Medical Sciences. **- Assistant Professor of Oral and Maxillofacial Pathology Dept. – Facul...
The present research analyzed the reciprocating instrumentation associated to chlorhexidine (CHX) substantivity as its correlation with E. faecalis viability in ex vivo root canals. Eighty extracted single-rooted human teeth were used, being 40 high-performance liquid chromatography (HPLC) and confocal laser scanning microscopy (CLSM). In both, decoronated cervical third was prepared. CLSM anal...
OBJECTIVE This study evaluated apical transportation associated with ProTaper Universal Fl, F2 and F3 rotary files in curved canais prepared by undergraduate students. MATERIAL AND METHODS Twenty mesial roots of mandibular molars with curvatures ranging between 25° and 35° were selected. Mesiobuccal canals were instrumented by twenty students with the ProTaper system (Dentsply-Maillefer, Ball...
Objective: The aim of this study was to evaluate the effect different glide path files on amount apically extruded debris. Material and Methods: Sixty single-canaled mandibular premolars were accessed randomly divided into three groups (n= 20) according file used for glid creation; group A using Traverse file, B WaveOne Gold Glider, C stainless steel K file. All teeth then instrumented Reciproc...
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