Effect of Biomimetic Remineralization on the Dynamic Nanomechanical Properties of Dentin Hybrid Layers

Ryou, Heonjune; L, Niu; Dai, Liye; Pucci, César Rogério; Arola, D.; Pashley, David H.; Tay, Franklin R.

doi:10.1177/0022034511414059

Cited by 81 publications

(73 citation statements)

References 35 publications

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“…In Fig. 3b) we decided to plot the damping factor tanδ=E″/E′ rather than the loss modulus E″ or the total complex modulus |E*|=√(E′ 2 +E″ 2 ), as done sometimes in the literature 15) . In fact, only one out of the three mentioned parameters is independent in addition to E′, such that each choice is allowed.…”

Section: Samples Mechanical Propertiesmentioning

confidence: 99%

Preparation and characterization of a BisGMA-resin dental restorative composites with glass, silica and titania fillers

et al. 2012

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A photo-polymerizable Bisphenol-A diglycidylether methacrylate resin was characterized by Fourier transform infrared spectroscopy after its irradiation under different conditions to identify the best curing. Bonding-agent free composites with particles of ball-milled glass, silica and titania at loading of 10 and 50%wt were prepared, and their viscoelastic properties investigated by dynamic mechanical analysis, in experimental conditions close to the working environment in the mouth. All composites showed good stability at the considered conditions. The stiffest composite was the silica one, which was based on the smallest primary particles. The storage moduli close to room temperature (25°C) and mastication frequency (1 Hz) were extracted as reference bending moduli for the materials, and compared to static compressive moduli measured by nanoindentation performed by atomic force microscopy. Nanoindentation showed qualitative results in agreement with dynamic mechanical analysis as to the ranking of different materials, while resulting in approximately two-fold elastic modulus.

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Section: Samples Mechanical Propertiesmentioning

confidence: 99%

Preparation and characterization of a BisGMA-resin dental restorative composites with glass, silica and titania fillers

et al. 2012

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“…Therefore, root specimens without cementum were used in the present study. Demineralization of the tooth surface has been investigated through various methods, including contact microradiography 22) , polarized light microscopy 23) , nanoindentation testing 24) , confocal laser microscopy 25) , and micro-CT 26) . Among these, contact microradiography has been accepted as the standard technique for determination of mineral content and caries lesion depth.…”

Section: Discussionmentioning

confidence: 99%

<i>In vitro</i> assessment of a calcium-fluoroaluminosilicate glass-based desensitizer for the prevention of root surface demineralization

Miyajima

Ishimoto

et al. 2016

Dent. Mater. J.

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The purpose of this study was to evaluate the ability of a calcium-fluoroaluminosilicate glass-based desensitizer (Nanoseal) to protect against root demineralization in vitro. Nanoseal was applied to human root dentin, which was immersed in acidic buffer for 72 h, or exposed to pH cycling by immersing in distilled water or mineralizing solution for 24 h intermediately during 48 h-acid attack. Demineralization was evaluated by μ-CT, and mineral loss (ML) and lesion depth (LD) were determined from mineral density profiles. ML and LD in all treatment groups were significantly smaller compared with control. The Nanoseal-treated group with pH cycling using mineralizing solution had the lowest ML and LD. Analysis using an EPMA demonstrated calcium and phosphorous were incorporated into the superficial layer of specimens in the Nanoseal-treated groups, suggesting Nanoseal modified the dentin surface, making it resistant to demineralization. Application of Nanoseal is an effective method for protecting root from demineralization.

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“…In this respect, in the last decade, AFM has become the nanotechnology standard for elastic measurements at high accuracy and spatial resolution, by means of force-spectroscopy of force-volume modes (Cappella and Dietler, 1999;Salerno et al, 2012a,b). On the other hand, for time-dependent viscous response and thanks to the chance of changing the working temperature (see Figures 4A,B) dynamic mechanical analysis [DMA (Menard, 1999)] has been increasingly used in the field of dental materials (Ryou et al, 2011).…”

Section: Elastic Properties Of Restorative Compositesmentioning

confidence: 99%

Dentistry on the Bridge to Nanoscience and Nanotechnology

Salerno

Diaspro

2015

Front. Mater.

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Dentistry is the area of medical sciences that is most resistant to the introduction of the novel methods arisen from the development of nanoscience and nanotechnology in the last 20 years. Without moving on to science-fiction-like views pointing to times far ahead in the future, we show that the available nanoscale devices and processes of current science and technology, partly inherited from the areas of microscopy and microelectronics, have already proven to be useful for research and development in different fields of dental research. To this goal, we review some results obtained in the last few years at our Institute in the area of dental materials and their characterization, which showed successful application of our background in microscopy and nanoengineering.Keywords: dental materials, microscopy, surface roughness, nanofabrication, resin composites, implants THE BROAD SCOPE OF DENTISTRYDentistry is considered to be a branch of medicine, such as orthopedics or physiology or neurology. In fact, while based on common foundations of medicine, dentistry is a large stand-alone area, which has its own grasps to the different fields mentioned above (American Dental Association, 2014). For example, topics of periodontal ligament health and dental implant osteointegration clearly relate to a peculiar "dental orthopedics"; the fact that teeth are not a mineralized appendix but rather a living organ in a living environment (gingiva, oral liquids) involves a specific "dental physiology"; the sensitivity of the living tooth, in connection with the pulp and related nerves, can be associated to a possible "dental neurology." Indeed, the oral environment, which is the place where dental functions are operated, is one of the most complex ones in the human body.As a result, within the dental area several specialized disciplines exist (see Figure 1). Conservative dentistry aims to maintain the original denture and largely overlaps with restorative dentistry, the latter encompassing prosthodontics, periodontics, and endodontics. Prosthodontics (or prosthetic dentistry) is required in case of massive irreversible tooth damage that cannot be fixed with simple resin composite filling, and requires the use of prosthesis for teeth, namely crowns, bridges, and even whole dentures. Periodontics (or periodontology) addresses the diseases of the periodontum, i.e., the teeth ligaments. Endodontics focuses on therapy of the root canals and connected pulp diseases. Oral surgery relates to the extraction of teeth that cannot be saved anymore and should be replaced by implants, and is usually combined with maxillo-facial surgery, extending the treated area around the denture. Prosthodontics, periodontics, and surgery correlate to implantology, which deals with the installation of dental implants. Orthodontics concerns the alignment and straightening of teeth, as well as fixing midface and mandibular growth issues. Pedodontics (or pediatric dentistry) relates to the specific dental issues of children's temporary dentures. Of course, oral...

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Effect of Biomimetic Remineralization on the Dynamic Nanomechanical Properties of Dentin Hybrid Layers

Abstract: A supplemental appendix to this article is published electronically only at http://jdr.sagepub.com/supplemental.

Cited by 81 publications

References 35 publications

Preparation and characterization of a BisGMA-resin dental restorative composites with glass, silica and titania fillers

Preparation and characterization of a BisGMA-resin dental restorative composites with glass, silica and titania fillers

<i>In vitro</i> assessment of a calcium-fluoroaluminosilicate glass-based desensitizer for the prevention of root surface demineralization

Dentistry on the Bridge to Nanoscience and Nanotechnology

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