Histological healing after grafting of bilayer artificial dermis in the oral environment

2003 ◽  
Vol 33 (2) ◽  
pp. 289 ◽  
Author(s):  
Min-Jeong Kim ◽  
Hyun-Ju Chung ◽  
Ok-Su Kim ◽  
Young-Joon Kim
Keyword(s):  
Artificial Dermis ◽  
Oral Environment

scholarly journals Review on Development and Dental Applications of Polyetheretherketone-Based Biomaterials and Restorations

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 408 ◽  
Author(s):  
Ludan Qin ◽  
Shuo Yao ◽  
Jiaxin Zhao ◽  
Chuanjian Zhou ◽  
Thomas W. Oates ◽  
...  
Keyword(s):  
High Performance ◽  
Dental Resin ◽  
Oral Environment ◽  
Inert Surface ◽  
Oral Implant ◽  
Long Term Performance ◽  
Dental Applications ◽  
Term Performance ◽  
Orthopedic Applications

Polyetheretherketone (PEEK) is an important high-performance thermoplastic. Its excellent strength, stiffness, toughness, fatigue resistance, biocompatibility, chemical stability and radiolucency have made PEEK attractive in dental and orthopedic applications. However, PEEK has an inherently hydrophobic and chemically inert surface, which has restricted its widespread use in clinical applications, especially in bonding with dental resin composites. Cutting edge research on novel methods to improve PEEK applications in dentistry, including oral implant, prosthodontics and orthodontics, is reviewed in this article. In addition, this article also discusses innovative surface modifications of PEEK, which are a focus area of active investigations. Furthermore, this article also discusses the necessary future studies and clinical trials for the use of PEEK in the human oral environment to investigate its feasibility and long-term performance.

Effect of the pro-resolution lipid mediator Resolvin E1 (RvE1) on pulp tissues exposed to the oral environment

2014 ◽  
Vol 47 (9) ◽  
pp. 827-834 ◽  
Author(s):  
L. Dondoni ◽  
R. K. Scarparo ◽  
A. Kantarci ◽  
T. E. Van Dyke ◽  
J. A. P. Figueiredo ◽  
...  
Keyword(s):  
Lipid Mediator ◽  
Oral Environment

scholarly journals The Benefits of Smart Nanoparticles in Dental Applications

2021 ◽  
Vol 22 (5) ◽  
pp. 2585
Author(s):  
Silvia Vasiliu ◽  
Stefania Racovita ◽  
Ionela Aurica Gugoasa ◽  
Maria-Andreea Lungan ◽  
Marcel Popa ◽  
...  
Keyword(s):  
Metallic Nanoparticles ◽  
Periodontal Diseases ◽  
Dental Materials ◽  
Moisture Stress ◽  
New Methods ◽  
Strong Trend ◽  
Scientific World ◽  
Oral Environment ◽  
Recent Developments ◽  
Dental Applications

Dentistry, as a branch of medicine, has undergone continuous evolution over time. The scientific world has focused its attention on the development of new methods and materials with improved properties that meet the needs of patients. For this purpose, the replacement of so-called “passive” dental materials that do not interact with the oral environment with “smart/intelligent” materials that have the capability to change their shape, color, or size in response to an externally stimulus, such as the temperature, pH, light, moisture, stress, electric or magnetic fields, and chemical compounds, has received much attention in recent years. A strong trend in dental applications is to apply nanotechnology and smart nanomaterials such as nanoclays, nanofibers, nanocomposites, nanobubbles, nanocapsules, solid-lipid nanoparticles, nanospheres, metallic nanoparticles, nanotubes, and nanocrystals. Among the nanomaterials, the smart nanoparticles present several advantages compared to other materials, creating the possibility to use them in various dental applications, including preventive dentistry, endodontics, restoration, and periodontal diseases. This review is focused on the recent developments and dental applications (drug delivery systems and restoration materials) of smart nanoparticles.

Considerations Regarding the Influence of Layering Thickness on the Esthetics of a Metal Ceramic Restoration

2016 ◽  
Vol 695 ◽  
pp. 25-30
Author(s):  
Radu Rîcă ◽  
Ana Maria Rîcă ◽  
Horia Octavian Manolea ◽  
Mirela Opri ◽  
Mihai Dodocioiu
Keyword(s):  
Layer Thickness ◽  
Extended Period ◽  
The Body ◽  
Dental Technician ◽  
Oral Environment ◽  
Metal Ceramic

A fixed restoration has many important properties. Not only it has to resist in the harsh oral environment but it also has to resist bite forces and to remain intact for an extended period of time and porcelain has all these qualities and it also gives excellent esthetic results. The aim of the study was to evaluate the influence of each layer of porcelain fused to the metal coping on the final aspect of a metal ceramic restoration using the Ivoclar dSign system. Therefore we have chosen three methods to apply the porcelain by varying the thickness of the dentin and enamel layers fused on the metal substructure. The layer thickness of the opaque porcelain, the body porcelain (dentin), and the incisal porcelain greatly influence the final aspect of the metal ceramic restoration and this variation must be taken into consideration in order for the dental technician to obtain the desired shade

scholarly journals Adaptive brain activity changes during tongue movement with palatal coverage from fMRI data

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuka Inamochi ◽  
Kenji Fueki ◽  
Nobuo Usui ◽  
Masato Taira ◽  
Noriyuki Wakabayashi
Keyword(s):  
Spatial Information ◽  
Brain Activity ◽  
Motor Impairment ◽  
Angular Gyrus ◽  
Tongue Movement ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Oral Environment ◽  
Motor Dexterity ◽  
The Brain

AbstractSuccessful adaptation to wearing dentures with palatal coverage may be associated with cortical activity changes related to tongue motor control. The purpose was to investigate the brain activity changes during tongue movement in response to a new oral environment. Twenty-eight fully dentate subjects (mean age: 28.6-years-old) who had no experience with removable dentures wore experimental palatal plates for 7 days. We measured tongue motor dexterity, difficulty with tongue movement, and brain activity using functional magnetic resonance imaging during tongue movement at pre-insertion (Day 0), as well as immediately (Day 1), 3 days (Day 3), and 7 days (Day 7) post-insertion. Difficulty with tongue movement was significantly higher on Day 1 than on Days 0, 3, and 7. In the subtraction analysis of brain activity across each day, activations in the angular gyrus and right precuneus on Day 1 were significantly higher than on Day 7. Tongue motor impairment induced activation of the angular gyrus, which was associated with monitoring of the tongue’s spatial information, as well as the activation of the precuneus, which was associated with constructing the tongue motor imagery. As the tongue regained the smoothness in its motor functions, the activation of the angular gyrus and precuneus decreased.

Evaluation of the nanodebris produced by in vitro degradation of titanium-based dental implants in the presence of bacteria using single particle and single cell inductively coupled plasma mass spectrometry.

2021 ◽  
Author(s):  
Marzia Cosmi ◽  
Nathaly Gonzalez-Quiñonez ◽  
Pablo Tejerina Díaz ◽  
Ángel Manteca ◽  
Elisa Blanco González ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Dental Implants ◽  
Inductively Coupled Plasma ◽  
Metallic Materials ◽  
In Vitro Degradation ◽  
Inductively Coupled ◽  
Oral Environment ◽  
Plasma Mass Spectrometry ◽  
Materials Used

The bio-tribocorrosion of metallic materials used for dental implants (Ti and alloys) in the oral environment involves the production of metallic debris in the ionic, but also in the nanoparticulated...

scholarly journals Effects of a glass-ionomer cement on the remineralization of occlusal caries: an in situ study

2006 ◽  
Vol 20 (2) ◽  
pp. 91-96 ◽  
Author(s):  
Mônica Tostes Amaral ◽  
Antônio Carlos Guedes-Pinto ◽  
Orlando Chevitarese
Keyword(s):  
Glass Ionomer Cement ◽  
Knoop Hardness ◽  
Glass Ionomer ◽  
In Situ Study ◽  
Group I ◽  
Oral Environment ◽  
Group Ii ◽  
Pits And Fissures ◽  
Ionomer Cement

This work evaluated the remineralization of demineralized enamel of pits and fissures of human third molars sealed with a glass ionomer cement (Fuji IX, GC Corporation - Japan) or with a Bis-GMA sealant (Delton - Dentsply). Ten volunteers participated in this in situ study that consisted of two thirty-day periods using intra-oral devices, with a week’s interval in between. Four experimental treatment procedures and one control were randomly assigned to the volunteers’ specimens: Group I, no treatment, control; Group II, artificial caries process; Group III, same treatment as Group II, but sealed with Delton (Dentsply); Group IV, same treatment as Group II, but sealed with Fuji IX (GC Corporation - Japan); Group V, same treatment as Group II and no sealing. Groups I and II were not submitted to the oral environment and served as controls. After a period of 30 days in the oral environment, the specimens were removed from the devices, embedded in acrylic resin, ground flat and polished. Then, Knoop hardness tests were performed, with a 25 g static load applied for 15 seconds. The measurements were made from the base of the fissure up to an opening of 600 µm, pre-established between the inclines of the cusps. Three indentations were then made, located at 25, 75, and 125 µm in depth from the outer enamel margin and 100 µm apart from each other (Micromet 2003). The Brieger F and Bonferroni’s tests were applied to the measurements. It was concluded that sealing with the glass ionomer cement Fuji IX was capable of making the enamel of pits and fissures more resistant by increasing the value of Knoop hardness.

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