Results 31 to 40 of about 45,435 (304)

Sealing of temporary cements in endodontics [PDF]

open access: yesRGO: Revista Gaúcha de Odontologia, 2009
Objective: The aim of this study was to assess the coronal leakage of three temporary cements in endodontics: Bioplic® (Biodinâmica, Londrina, Brazil), IRM® (Dentsply, Petrópolis, Brazil) and Coltosol® (Vigodent, Bonsucesso, Brazil). Methods: Forty human
Eduardo Gomes Ferraz   +5 more
doaj  

Classification review of dental adhesive systems: from the IV generation to the universal type [PDF]

open access: yes, 2017
Adhesive dentistry has undergone great progress in the last decades. In light of minimal-invasive dentistry, this new approach promotes a more conservative cavity design, which relies on the effectiveness of current enamel-dentine adhesives.
Migliau, Guido   +5 more
core   +1 more source

Effect of different cavity conditioners on microleakage of glass ionomer cement with a high viscosity in primary teeth

open access: yesDental Research Journal, 2015
Background: Glass ionomer cement is a common material used in pediatric dentistry. The aim of this study was to evaluate the microleakage of high-viscosity glass ionomer restorations in deciduous teeth after conditioning with four different conditioners.
Romina Mazaheri   +3 more
doaj   +1 more source

Evaluation of microleakage under orthodontic brackets bonded with nanocomposites

open access: yesContemporary Clinical Dentistry, 2018
Background: The aim of this study was to evaluate the microleakage value under orthodontic brackets bonded with a nano-filled composite and to compare the results with a conventional adhesive using two different bonding systems.
Zohreh Hedayati, Amin Farjood
doaj   +1 more source

Effect of different separated nickel–titanium rotary instruments on apical microleakage: An in vitro study

open access: yesSaudi Endodontic Journal, 2022
Introduction: Endodontic instrument separation is one of the iatrogenic errors which may affect the outcome of treatment. The present in vitro study was aimed to investigate the effect of different cross-sectional designs of separated nickel–titanium (Ni-
Roohollah Sharifi   +5 more
doaj   +1 more source

The use of Bioceramics as root-end filling materials in periradicular surgery: a literature review [PDF]

open access: yes, 2018
Introduction: Periradicular surgery involves the placement of a root-end filling following root-end resection, to provide an apical seal to the root canal system. Historically several materials have been used in order to achieve this seal.
Abusrewil, Sumaya M.   +2 more
core   +1 more source

Salivary bacterial leakage into implant-abutment connections: preliminary results of an in vitro study [PDF]

open access: yes, 2016
OBJECTIVE: The occurrence of bacterial leakage in the internal surface of implants, through implant-abutment interface (IAI), is one of the parameters for analyzing the fabrication quality of the connections. The aim of this in vitro study is to evaluate
Di Carlo, S   +3 more
core  

An in vitro comparison between two methods of electrical resistance measurement for occlusal caries detection [PDF]

open access: yes, 2006
Because of different measurement techniques and the easier design of the CRM prototype, this in vitro study aimed to compare the diagnostic performance and reproducibility of two electrical methods (Electronic Caries Monitor III, ECM and Cariometer 800 ...
Bamzahim M   +21 more
core   +1 more source

Memristor‐Driven Active‐Matrix Organic Light‐Emitting Diode for Energy Efficient and High‐Resolution Displays

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that memristors can replace conventional 2T–1C driving circuits with simplified 1T–1 m architectures by exploiting resistance switching. With ultra‐low switching voltages (< ±0.2 V) and multi‐level resistance states, the memristors precisely control the current injected into organic light‐emitting diodes (OLEDs).
Dong Hyun Kim   +6 more
wiley   +1 more source

Effect of Pulp Protection Technique on the Clinical Performance of Amalgam Restorations: Three-Year Results [PDF]

open access: yes, 2002
This study evaluated the influence of the pulp protection technique on clinical performance of amalgam restorations after three years, with particular reference to post-operative sensitivity and secondary caries.
Baratieri, L.N.   +4 more
core  

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