نتایج جستجو برای: apical micro leakage

تعداد نتایج: 174842  

Journal: :Journal of Pharmaceutical Negative Results 2022

Aim & Objective: The objective of this in vitro research was to assess how final irrigation techniques affected the apical micro leakageof a bioceramic sealer.Materials and Methods: To standardise canal length, sixty single-rooted mandibular premolar teeth that had been removed were obtained decoronated. working length root canals established after accessing them. NiTi rotary files used pre...

Journal: :The journal of contemporary dental practice 2013
P V Ravi Chandra V Harikumar D Ramkiran M J N Krishna M Veerabhadra Gouda

BACKGROUND AND AIMS Microleakage has been identified as a significant problem with composite restorations because of interfacial gap formation which can result in tooth discoloration, recurrent caries, possible pulpal involvement and restoration replacement. Aim of this study is to evaluate the microleakage of self-etch adhesive system at the coronal and apical margins of class V resin composit...

2015
Shuang Shi Dan-Dan Zhang Xu Chen Zhi-Fan Bao Ya-Juan Guo

Introduction: This study compared the apical sealing ability of a bioceramic based root canal repair filling material (iRoot FS) with mineral trioxide aggregate (MTA). Methods and materials: Forty single-canal teeth were prepared and randomly divided into two experimental groups (n=18) and two control groups (n=2). Teeth in experimental groups were retrofilled with either MTA or iRoot FS. After...

Journal: :Brazilian oral research 2012
Cacio Moura-Netto Renato Miotto Palo Samira Esteves Afonso Camargo Carol Jent Renato de Toledo Leonardo Marcia Martins Marques

Dentin wall structural changes caused by 810-nm-diode laser irradiation can influence the sealing ability of endodontic sealers. The objective of this study was to evaluate the apical leakage of AH Plus and RealSeal resin-based sealers with and without prior diode laser irradiation. Fifty-two single-rooted mandibular premolars were prepared and divided into 4 groups, according to the endodontic...

2012
João Eduardo GOMES-FILHO Jaqueline Viana MOREIRA Simone WATANABE Carolina Simonetti LODI Luciano Tavares Angelo CINTRA Eloi DEZAN JUNIOR Pedro Felício Estrada BERNABÉ Mauro Juvenal NERY José Arlindo OTOBONI FILHO

OBJECTIVES The aim of this study was to evaluate the apical sealability of Fillapex®, endo-CPM-Sealer® and Sealapex®. MATERIAL AND METHODS Ninety-four freshly extracted single-rooted teeth were selected and decoronated. All teeth were radiographed to confirm the existence of a single and straight root canal, which was prepared using Protaper Universal and 2.5% sodium hypochlorite. The teeth w...

Journal: :Journal of immunology 2002
Frank Rose Bernd Guthmann Tobias Tenenbaum Ludger Fink Ardeschir Ghofrani Norbert Weissmann Peter König Leander Ermert Gabriele Dahlem Joerg Haenze Wolfgang Kummer Werner Seeger Friedrich Grimminger

The influence of LPS preincubation on hydrogen peroxide (H(2)O(2))-induced loss of epithelial barrier function was investigated in rat alveolar epithelial type II cells (ATII). Both apical and basolateral H(2)O(2) administration caused a manyfold increase in transepithelial [(3)H]mannitol passage. Apical but not basolateral preincubation of ATII with LPS did not influence control barrier proper...

Journal: :iranian endodontic journal 0
seddigheh khedmat department of endodontics, dental school, tehran university of medical sciences, tehran, iran. [email protected] mostafa rezaefar general practitioner, tehran, iran

introduction: recently, attention has been drawn to the influence of smear layer removal on apical seal, and the relation of root canal filling material with canal wall surface in the presence and absence of the smear layer. the purpose of this study was to evaluate the influence of the smear layer removal on the apical sealing ability of ah26 sealer. materials and methods: forty extracted huma...

تبریزی زاده, مهدی, حاجی قاسمی, فرشید, زارع, محمدرضا, صباغی, سید صالح,

Introduction: Root canal obturation aims at sealing the root canal system to prevent re-contamination of canal and periapical space. Presence of moisture in canal before obturation may posit a negative effect on the quality of canal sealing. Therefore, this study was conducted to investigate the effect of canal contamination with saliva on apical microleakage. Methods: In this laboratory study...

Journal: :Brazilian oral research 2010
Emre Bodrumlu Esra Parlak Ebru Hazar Bodrumlu

The aim of this study was to assess the effect of three root canal irrigation solutions on the apical sealing ability of three root canal obturation materials: gutta-percha/AH plus or MM-seal and Resilon/Epiphany SE. A total of 100 teeth with single straight root canals were randomly divided into three equal groups of 30 samples each, with the other 10 teeth (5 positive and 5 negative) used as ...

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