نتایج جستجو برای: post and core
تعداد نتایج: 16914042 فیلتر نتایج به سال:
BACKGROUND The purpose of this study was to compare the adaptation of fiber reinforced composite post system and cast post-and-core. METHODS 17 extracted human permanent maxillary central incisors were endodontically treated following the standard protocol. 17 fiber reinforced composite post had been fabricated and adapted to the prepared parallel root canals. A light body poly vinyl siloxane...
introduction: post and core has been considered for endodontically treated tooth, especially in cases with severe damage crowns. recently fiber reinforced composite posts (frc post) have been used in the treatment of endodontically treated teeth. because the length and diameter of posts are effective in stress distribution, the purpose of this study is to evaluate the effect of length and diame...
This in vitro study evaluated the survival rate and fracture resistance of maxillary central incisors restored with different post and core systems. The post and core systems investigated were a prefabricated high precious metal post with cast core (group A), zirconia post with a prefabricated bonded ceramic core (group B), and a resin-ceramic interpenetrating phase composite post (experimental...
Background and aim: Studies as to the evaluation of clinically relevant color assessment of full ceramic restorations supported by esthetic post and core materials has not been found in the related literature. Thus, this study is conducted to evaluate the color difference of Empress 2 ceramic crowns restored with 4 different esthetic post systems and two different core materials by using colori...
Background: Multiple sclerosis (MS) is a chronic disease of the central nervous system in which the myelin of the central nervous system (brain and spinal cord) is damaged. The most common symptoms are double vision, tremor, muscle cramps, ataxia, and abnormal gait. The purpose of this study was to determine the effect of 8-weeks core stabilization and Yoga exercises on balance in MS patients. ...
Background and Aims : According to the common application of non-metal prefabricated posts in dentistry and lack of enough information about the stress distribution in the root canal walls by these posts, this study was performed to compare the effect of two simple taper and double taper posts on the stress distribution on root canal walls by photo elastic method . Materials and Methods: Th...
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