نتایج جستجو برای: apical

تعداد نتایج: 30144  

Production of genetically and phenotypically stable plantlets is the main purpose in commercial strawberry tissue culture. In this study, different tissues of Fragaria ananassa cv. Camarosa including stipule, apical meristem, leaf and petiole were cultured in Murashige and Skoog (MS) medium supplemented withdifferent concentrations of N6-benzyladenine (BA) (0.5, 1, ...

ژورنال: مجله دندانپزشکی 2011
اصفهانی زاده, غلامرضا, شمس, امیر کیهان, عیوض ضیائی, آیدا, قصیری, روژین,

Background and Aims: Considering the great incidence of implant failures due to high stresses around implant and at bone-implant interfaces, the aim of this study was to compare the effects of three different implant-macro designs on the quantity and distribution pattern of stresses around implants.Materials and Methods: In this experimental in vitro study, three types of implants including Bio...

2017
Taha Özyürek Vildan Tek Koray Yılmaz Gülşah Uslu

Objectives To determine the incidence of crack formation and propagation in apical root dentin after retreatment procedures performed using ProTaper Universal Retreatment (PTR), Mtwo-R, ProTaper Next (PTN), and Twisted File Adaptive (TFA) systems. Materials and Methods The study consisted of 120 extracted mandibular premolars. One millimeter from the apex of each tooth was ground perpendicula...

Journal: :Universidad y Salud 2023

Introducción: La prevalencia de periodontitis apical en dientes con tratamiento endodóntico oscila entre el 35 y 60%, se ha encontrado una fuerte asociación respecto al grado inflamación sistémica generada por la apical, como ejemplo altos niveles citoquinas proinflamatorias, proteína C reactiva e interleuquina 6; estudios refieren que un adecuado puede reducir los individuos sanos apical. Obje...

Journal: :journal of dental research, dental clinics, dental prospects 0
maryam ehsani atena dehghani farida abesi soraya khafri sara ghadiri dehkordi

background and aims. with availability of hydrophilic sealers, drying of the canals before endodontic obturation is still a matter of debate. the aim of this study was to compare the apical micro-leakage of ah26, excite dsc, mta fillapex, and zoe sealers in dry and moist root canals. materials and methods. this experimental study was performed on 90 extracted maxillary central incisors. rotary ...

ژورنال: مجله دندانپزشکی 2007
بیدار, مریم , جعفرزاده, حمید , ضرابی, محمد حسن ,

Background and Aim: Mechanical preparation of canal is one of the most important stages in root canal therapy. Various kinds of hand or rotary techniques are used for mechanical preparation of canal and each of them has advantages and disadvantages. During canal preparation, extrusion of debris from the apical foramen can result in periapical inflammation and increased pain and edema. The aim o...

ژورنال: مجله دندانپزشکی 2007
اعتصامی, لیلا, ساعتچی, مسعود,

Background and Aim: The final objective of root canal therapy is to create a hermetic seal along the length of the root canal system from the coronal opening to the apical termination and to accomplish the best adaptation of obturation material with canal walls. The purpose of this study was to compare the microleakage during lateral condensation of 0.04 and 0.02 tapered gutta-percha master con...

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