Micro and Nano Structural Analysis of Dental Ceramic and Luting Resin Interface and the Effect of Water Exposure on Integrity of Cement Interface

Ramakrishnaiah, Ravikumar; Alaqeel, Samer M.; Al-Kheraif, Abdulaziz A.; Divakar, Darshan Devang; Elsharawy, Mohamed A.; Matinlinna, Jukka Pekka; Vallittu, Pekka K.

doi:10.1166/jbt.2018.1711

Cited by 6 publications

(3 citation statements)

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“…This could be mainly attributed to the presence of ammonium polyflouride acid in the monobond etch and prime which is a weak acid salt of hydrofluoric acid in contrast to the two step surface treatment protocol which utilizes a stronger 5% hydrofluoric acid as an etchant.It was well documented by earlier studies that the number, width and depth of the microporosities is directly related to the concentration of acid and duration of etching.The use of weaker acid or shorter etching time results in an underetched surface which in turn reduces bond strength (56) . Under etching partially etches the glassy matrix creating shallower porosities which may impede complete penetration of the subsequently applied viscous resinous material (57) Previous studies also demonstrated positive correlation between ceramic surface area, roughness and wettability which are important parameters affecting bond strength with concentration of acid and etching duration (56,58,59) A study conducted by Asiri et al in 2018 (60) showed that ceramic specimens treated with two step protocol had higher roughness values and bond strength than that treated with one step self etching primers. Another study was carried by Sherer et al in 2018 (61) examining lithium disilicate ceramic surfaces treated with one step and two step conditioning methods using scanning electron microscope.…”

Section: Discussionmentioning

confidence: 99%

Assessment of resin -ceramic bond strength under various pH conditions for different ceramic materials subjected to two surface treatment protocols

Elbasty

Taymour

2019

Egyptian Dental Journal

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Statement of the problem:The 2 step ceramic surface treatment " HF acid etching followed by silane application" has been used for years to secure an efficient bond between ceramics and resin cements, however the urge for simplification and making the bonding procedure less technique sensitive have pushed the dentists to shift to one step ceramic surface treatment "self etch ceramic primer". Although studies proved their reliability, till now there is no data available on their effect on bond stability in different pH conditions Purpose: The aim of the current study was to evaluate microshear bond strength between resin and different ceramic materials (e.max, VITA ENAMIC and VITA SUPPRINITY) preatreated with two different protocols (2 step and 1 step) after being subjected to various pH storage media Materials and Methods: A total of ninety ceramic discs were fabricated in this study from CAD/ CAM blocks. The discs were divided into three groups according to ceramic material as follows; Group 1: Thirty discs constructed from lithium disilicate glass ceramic (e.max CAD), Group 2: Thirty discs constructed from polymer infiltrated ceramic-network material (VITA ENAMIC) and Group 3: Thirty discs constructed from Zirconia-lithium silicate glass-ceramic materials (VITA SUPRINITY). Each of the previous groups were further subdivided into two equal subgroups according to the surface treatment protocol used as follows; Subgroup 1: fifteen discs were treated with 2 step bonding protocol (etched with hydrofluoric acid followed by silane application) and Subgroup 2: fifteen discs were treated with 1 step application of self etching primer (Monobond etch and prime). The two subgroups were again equally divided (5 each) and assigned to one of the three storage solutions with different pHs : acidic, neutral and alkaline media.Ceramic discs were obtained by sectioning the CAD/CAM blocks using Isomat 1000 followed by crystallization of the e.max and VITA SUPPRINITY discs. For first subgroup, the ceramic discs were subjected to two step surface treatment protocol consisting of hydroflouric acid etching, rinsing followed by silane application. While the second subgroup was subjected to surface treament using one (668)

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Section: Discussionmentioning

confidence: 99%

Assessment of resin -ceramic bond strength under various pH conditions for different ceramic materials subjected to two surface treatment protocols

Elbasty

Taymour

2019

Egyptian Dental Journal

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“…With the development of dental composites, many studies have confirmed that the compositions of dental composites and the matrix/filler interfacial interaction have a great influence on their service performance . In addition to the well‐studied compositions of the resin matrix and fillers, some previous work also found that the excellent interfacial compatibility and strong interfacial interaction of the organic/inorganic phase are beneficial for the long‐term clinical application of dental composites . The commonly used oxide fillers possess MOH bonds on their surface, resulting in filler agglomerations upon blending with the resin matrix and subsequently decreasing the fracture resistance of dental composites .…”

Section: Modification Technologies To Improve the Matrix/filler Intermentioning

confidence: 99%

“…SEM images of fracture surface of the resin composites with the filler of a) s‐SiO 2 , b) PGSHW/s‐SiO 2 (2:4), c) PGSHW/s‐SiO 2 (4:2), and d) PGSHW. Reproduced with permission . Copyright 2014, Elsevier Ltd.…”

Section: Modification Technologies To Improve the Matrix/filler Intermentioning

confidence: 99%

Dental Restorative Resin Composites: Modification Technologies for the Matrix/Filler Interface

Chen

Wang

et al. 2018

Macro Materials & Eng

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Dental restorative resin composites are a pivotal class of organic/inorganic hybrid materials. The main reasons for their failure are secondary caries and dental composite fractures, which prevent their long‐term service in posterior restorations. A remedy to these problems is improving the interfacial adhesion between the resin matrix and the fillers. Surface‐modified inorganic fillers show strong potential as more than just a bond between these two phases and can therefore be considered a medium to compensate for the deficits of dental composites. This paper mainly discusses strategies to improve the interfacial adhesion of dental composites, including surface treatments of fillers with coupling agents, polymers, and tetraethyl orthosilicate (TEOS) coatings, as well as the selection of porous fillers capable of micromechanical resin matrix/filler interlocking. Additionally, the existing deficiencies of these strategies and the prospects for dental composites are discussed.

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Nanobiotechnology in health sciences: Current applications and future perspectives

Qamar

Asgher

Khalid

et al. 2019

Biocatalysis and Agricultural Biotechnology

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Micro and Nano Structural Analysis of Dental Ceramic and Luting Resin Interface and the Effect of Water Exposure on Integrity of Cement Interface

Cited by 6 publications

References 0 publications

Assessment of resin -ceramic bond strength under various pH conditions for different ceramic materials subjected to two surface treatment protocols

Assessment of resin -ceramic bond strength under various pH conditions for different ceramic materials subjected to two surface treatment protocols

Dental Restorative Resin Composites: Modification Technologies for the Matrix/Filler Interface

Nanobiotechnology in health sciences: Current applications and future perspectives

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