منابع مشابه
Removal of calcium hydroxide from Weine Type II systems using photon-induced photoacoustic streaming, passive ultrasonic, and needle irrigation: a microcomputed tomography study
Objective This study compared the effectiveness of Er:YAG laser-activated irrigation (PIPS), passive ultrasonic irrigation (PUI) with EndoUltra and standard needle irrigation (SNI) in the removal of calcium hydroxide [Ca(OH)2] from the mesial roots of Weine Type II mandibular molars. Material and Methods Thirty mandibular molars were screened by µCT for the presence of mesial roots with compl...
متن کاملRoot canal system in the mesiobuccal root of the maxillary first molar: an in vitro comparison study of computed tomography and histology.
OBJECTIVES The purpose of this study was to investigate a new diagnostic approach to the examination of the canal configuration of the mesiobuccal root of the maxillary first molar. MATERIALS AND METHODS High-resolution computed tomography (CT) was compared with histology in vitro. There were 152 teeth investigated and classified according to Weine and Vertucci. RESULTS CT describes the exa...
متن کاملApical anatomy in mesial and mesiobuccal roots of permanent first molars.
The purpose of this in vitro study was to investigate the canal configuration types, and the prevalence and location of anatomical variations in the mesiobuccal (MB) and mesial roots of permanent maxillary and mandibular first molars after instrumentation. The number and the type of canals were determined before instrumentation using conventional methods. All root canals from the 47 MB roots an...
متن کاملThe envelope of motion and Protaper Next
They found that utilisation of standard instruments in either reaming and/or filing produced preparations that were irregular in shape, and were not continuously tapering. The narrowest part of the canal, the so-called ‘elbow’, was located at a point coronal to the apex or foramen. In addition, the foramen often displayed transportation, which was called the ‘apical zip’. These characteristics ...
متن کاملمقایسه آزمایشگاهی دو روش دستی و چرخشی در آماده سازی کانال دندان هایمولر شیری
زمینه و هدف: افزایش سهولت در آماده سازی، سرعت کار و حفظ بیشتر شکل اولیه کانال توسط وسایل چرخشی نیکل تیتانیم، در دندان های دایمی از مزایای این گونه وسایل ذکر شده است. هدف از این بررسی، مقایسه زمان آماده سازی و مقدار جابجایی کانال ریشه توسط فایل های دستی (k فایل) و فایل های چرخشی (hero642) در مولرهای شیری بود.
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ژورنال
عنوان ژورنال: Zeitschrift für Untersuchung der Nahrungs- und Genussmittel
سال: 1901
ISSN: 1438-2377,1438-2385
DOI: 10.1007/bf02431129