Effect of Aqueous Extracts of &amp;lt;i&amp;gt;Salvadora persica “Miswak”&amp;lt;/i&amp;gt; on the Acid Eroded Enamel Surface at Nano-Mechanical Scale

Bawazeer, Tahani M.; Alsoufi, Mohammad S.; Katowah, Dina F.; Alharbi, Waad S.

doi:10.4236/msa.2016.711059

Cited by 14 publications

(8 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Anticariogenic Effect of Miswak (Silvadora Persica) and Grape Seed Extract (389) Miswak increased enamel radiodensity, this was supported by previous studies (12,13) . Which showed that, miswak precipitate a polysaccharides layer on enamel surface protecting it and increasing its resistance to acid challenges.…”

Section: Discussionsupporting

confidence: 70%

The Anticariogenic Effect of Miswak (Silvadora Persica) and Grape Seed Extract

Khoriba¹,

Niazy²,

Sharkawy³

2022

ADJ-for Girls

View full text Add to dashboard Cite

Purpose: To evaluate the effect of Miswak and Grape seed extract (GSE) on enamel and dentine subjected to artificial acid challenge in-vitro. Materials and Methods: A total of thirty sound freshly extracted sound human permanent periodontally affected upper molars were used. 30 enamel specimens were cut from the buccal surface of the teeth and 30 dentin specimens were cut from the cervical root area. All specimens were polished to obtain a flat polished surface. Ethanolic miswak extract was prepared by percolation method. Solutions of 10% ethanolic miswak extract, 6.5% Grape seed extract and 0.05% sodium fluoride were prepared. Specimens were divided into two groups (n=30); enamel and dentin. Each group was further divided into three sub-groups (n=10) according to the material used. Group1; treated with 10% ethanolic miswak extract solution. Group2; treated with 6.5% GSE solution. Group3; treated with 0.05% sodium fluoride solution (positive control). Specimens were individually subjected to alternative treatment/pH cycling regimen for 7 days. Radiodensity (change in mineral content) for each enamel and dentine specimen was assessed before and after pH cycling using digital radiography. Data were statistically analyzed; the significance level was set at p ≤0.05. Results: Miswak and GSE showed a high percent gain in enamel and dentine radiodensity compared to fluoride. Conclusion: Miswak and GSE are beneficial to both enamel and dentin through increasing their resistance to acid attacks.

show abstract

Section: Discussionsupporting

confidence: 70%

The Anticariogenic Effect of Miswak (Silvadora Persica) and Grape Seed Extract

Khoriba¹,

Niazy²,

Sharkawy³

2022

ADJ-for Girls

View full text Add to dashboard Cite

show abstract

“…The traces were autolevelled, set up to a linear least-squares (LLS) straight line and then filtered with a standard low-pass of 0.8 mm cut-off wavelength. More details of the surface roughness measurement procedure have been reported elsewhere [22][23][24][25][26][27][28][29][30][31]. The high precision, repeatability and reproducibility of this technology make it appropriate for reverse engineering (RE) and roughness measurement.…”

Section: Surface Profile Measurementsmentioning

confidence: 99%

Quantitative analysis of 0% infill density surface profile of printed part fabricated by personal FDM 3D printer

Alsoufi

Elsayed

2018

IJET

View full text Add to dashboard Cite

Fused deposition modeling or FDM technology is an additive manufacturing (AM) technology commonly used for prototyping applications which suffer seriously from low levels of fluctuated surface finish quality, demanding some hand finishing tool for even the necessary levels of 3D printed parts. This paper, therefore, aims at giving close attention to the variation in the surface roughness profile between the inner and the outer faces of FDM 3D printed parts based on advanced polylactic acid (PLA+) thermoplastic filament material. The surface roughness is quantitatively analyzed using a contact-type test-rig with a 90° angle measurement on each face along with each zone and sub-zone. The obtained results revealed that the surface finish of the inner faces is rougher than those of the outer faces as regards nozzle temperature, nozzle diameter, infill density and layer height is 220°C, 0.5 mm, 0% and 0.3 mm, respectively. The personal FDM 3D printer is thus confirmed to be an excellent platform, flexible, straightforward and cost-effective. Keywords: Additive Manufacturing (AM), Fused Deposition Modeling (FDM), Surface Profile, 3D Printer.1. Background Rapid Prototyping and 3D PrintingRapid prototyping (RP) refers to a collection of new technologies, such as fused deposition modeling (FDM), direct metal deposition (DMD), selective laser sintering (SLS), inject modeling (IJM) and stereolithography (SLA), which can be used to create any desired 3D physical model of a printed part, element, device or artefact faster than before without machining or tooling [1] by layer manufacturing from computer aided design (CAD) data [2] and without a significant increase in time or cost [3]. This rapid growth of the market has placed 3D printers not just in enormously varied industrial settings but also in schools, universities, and homes, and it is therefore often preferable to call these devices a 'personal 3D printer' or 'desktop 3D printer' [4,5]. The range of applications where FDM 3D printer technology can be used is widespread in different fields, ranging from medical [6] to automotive [7] and aeronautics applications [8]. Currently, as RP is moving towards rapid manufacturing, there is an increasing demand for obtaining good surface quality printed parts as this has more influence on how customers assess the quality of the 3D printed parts. FDM TechnologyOpen source fused deposition modeling (FDM) is one of several RP technologies available that is currently attracting attention [9]. The FDM process was established commercially and sold to international trade in the early 1990s in the USA as a form of concept modeling by Stratasys Inc. [10]. Figure 1 shows the schematic concept of the FDM 3D printer process. It begins with a 3D model (or three-dimensional modeling) in a computer aided design (CAD) file in order to calculate the horizontal cross-sections at sufficiently small increments of the layer height of the printed part before converting it to an STL (Stereo-Lithography) format file [11]. The STL (Stereo-Lithog...

show abstract

“…The hybrid composite HDPE/20% Al 2 O 3 /10% TiO 2 was scanned using SEM (scanning electron microscopy) to get an image of the distribution of the reinforcing particles before the test and the fracture type after the tensile test. More details of the SEM machine procedure have been reported elsewhere [ 26 – 28 ]. Figure 8 shows the fractured surface observed at 200X magnification.…”

Section: Resultsmentioning

confidence: 99%

Experimental Investigations into the Mechanical, Tribological, and Corrosion Properties of Hybrid Polymer Matrix Composites Comprising Ceramic Reinforcement for Biomedical Applications

Yunus

Alsoufi

2018

International Journal of Biomaterials

Self Cite

View full text Add to dashboard Cite

Hybrid polymer matrix composites (HPMC) are prominent material for the formation of biomaterial and offer various advantages such as low cost, high strength, and the fact that they are easy to manufacture. However, they are associated with low mechanical (low hardness) and tribological properties (high wear rate). The average hip joint load fluctuates between three to five times of the body weight during jumping and jogging and depends on various actions relating to body positions. Alternate bone and prosthesis material plays a critical role in attaining strength as it determines the method of load transferred to the system. The material property called modulus of elasticity is an important design variable during the selection of the geometry and design methodology. The present work is demonstrated on how to improve the properties of high-density polyethylene (HDPE) substantially by the addition of bioceramic fillers such as titanium oxide (TiO2) and alumina (Al2O3). The volume fractions of Al2O3 and TiO2 are limited to 20% and 10%, respectively. Samples were fabricated as per ASTM standards using an injection moulding machine and various properties such as mechanical (tensile, flexural, and impact), tribological (hardness, wear), and corrosion including SEM, density, and fractography analysis studied. Experimental results revealed that an injection moulding process is suitable for producing defect-free mould HPMC. HPMC comprising 70% HDPE/20% Al2O3/10% TiO2 has proved biocompatible and a substitute for biomaterial. A substantial increase in the mechanical and tribological properties and full resistance to corrosion makes HPMC suitable for use in orthopaedic applications such as human bone replacement, bone fixation plates, hip joint replacement, bone cement, and bone graft in bone surgery.

show abstract

Effect of Aqueous Extracts of <i>Salvadora persica “Miswak”</i> on the Acid Eroded Enamel Surface at Nano-Mechanical Scale

Cited by 14 publications

References 40 publications

The Anticariogenic Effect of Miswak (Silvadora Persica) and Grape Seed Extract

The Anticariogenic Effect of Miswak (Silvadora Persica) and Grape Seed Extract

Quantitative analysis of 0% infill density surface profile of printed part fabricated by personal FDM 3D printer

Experimental Investigations into the Mechanical, Tribological, and Corrosion Properties of Hybrid Polymer Matrix Composites Comprising Ceramic Reinforcement for Biomedical Applications

Contact Info

Product

Resources

About