نتایج جستجو برای: indirect composite restoration

تعداد نتایج: 249802  

ژورنال: مجله دندانپزشکی 2012
عصاره, فاطمه, کاویانی, آزیتا,

Background and Aims: Although composite resin restorations have many advantages, they can lead to several clinical problems. The primary reason for these problems is microleakage. The aim of this study was to compare the rebonding effect on microleakage of class V composite restorations using two low viscosity resins.Materials and Methods: In this in vitro study, 60 class V composite restoratio...

2007

Whether a direct or indirect approach is taken when faced with a patient requiring restorative treatment, creating and designing natural occlusal surfaces is not only a challenge, but also important to achieve proper bite registration, occlusion, and masticatory function. The indirect restoration described in this article features a computer-aided design/computer-aided manufacture (CAD/CAM)-gen...

2012
Maria Angela G. Gonzalez

The widespread use of aesthetic f illings has highlighted their advantages and disadvantages. One of the most troublesome features of earlier aesthetic materials was the difficulty of finishing the restoration surface to decrease adherence of food debris. The rougher the finished surface, the greater the possibility of bacterial accumulation and discolouration of restoration along the restorati...

2017
Jian-Yong Ruan Zheng-Lin Gong Rui-Zhi Zhang Zhe Zhang Ran Xu Da-Xu Li Le Ren Hong Tao

BACKGROUND This study aimed to conduct a clinical evaluation of four restorative materials for restoration of dental wedge-shaped defect (WSD) and their impacts on periodontal tissues. MATERIAL AND METHODS A total of 280 maxillary premolars with dental WSD were selected from 106 patients; the patient cases were divided into eight groups according to different combinations of restorative materia...

2005
R. G. CRAIG

Neutron activation analysis with dysprosium as a tracer was employed to determine quantitatively the microleakage around the restorations of an experimental hydrophobic composite, as well as a commercial composite. Only a negligible uptake of tracer was obtained for the experimental composite, whereas a five-fold uptake was recorded for the commercial composite. Capillary penetration of fluid a...

Journal: :journal of dentistry, tehran university of medical sciences 0
masomeh hasani tabatabaei associate professor, department of operative dentistry, dental research center, faculty of dentistry, tehran university of medical sciences, kargar ave, tehran farnaz farahat assistant professor, department of operative dentistry, shahid sadoughi university of medical sciences, yazd, iran zahra hassani dentist elham ahmadi assistant professor, department of operative dentistry, dental research center, faculty of dentistry, tehran university of medical sciences, kargar ave, tehran

objectives : the aim of this study was to assess the effect of artificial accelerated aging (aaa) on color change of direct and indirect fiber-reinforced composite (frc) restorations. materials and methods: direct (z250) and indirect (gradia) composite resins were reinforced with glass (gf) and polyethylene fibers (pf) based on the manufacturers’ instructions. forty samples were fabricated and ...

ژورنال: مجله دندانپزشکی 2017

Background and Aims: One of the main disadvantages of light cured composite resin materials is polymerization shrinkage upon curing. This leads to the microleakage of restoration and finally failure of the restoration. The purpose of this study was to investigate the effect of two types of light curing devices with different modes on the microleakage of posterior composite filling in ...

Hedayat Gorjestani Iman Ghahraman Masoud Parirokh Molouk Torabi Sina Safari

Background & Aims: Crown restoration of teeth after root canal treatment protects their remaining structure against breakage and infection of the root canal, and will replace the missing structure. This study was performed to identify the prevalence of different types of crown restorations after root canal treatment of posterior teeth in Kerman, Iran, in 2013. <stro...

Journal: :Journal of oral science 2012
Mariko Nishimaki

The purpose of this study was to evaluate the depth of cure and Knoop hardness of indirect composite materials polymerized with different laboratory curing units. Five composite materials designed for fixed restoration veneer (Artglass, Ceramage, Epricord, Prossimo, and Solidex) were filled into a cylindrical mold and then light-exposed by using the respective proprietary laboratory curing unit...

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