scholarly journals Alterations to Titanium Surface Depending on the Fluorides and Abrasives in Toothpaste

Materials ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 51
Author(s):  
Takahiro Shuto ◽  
Yuichi Mine ◽  
Seicho Makihira ◽  
Hiroki Nikawa ◽  
Takanori Wachi ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Surface Texture ◽  
Titanium Surface ◽  
Testing Machine ◽  
Pure Titanium ◽  
Abrasive Particles ◽  
Black Spots ◽  
Color Differences ◽  
Titanium Surfaces ◽  
The Difference

Fluoride and abrasives in toothpastes may cause corrosion and deterioration of the titanium used for implants and other prostheses. The purpose of this study was to investigate how the presence or absence and types of fluoride and abrasives affected the titanium surface texture. Brushing with toothpastes was performed on pure-titanium discs using an abrasive testing machine. Unprocessed titanium discs without brushing were used as control samples. Surface roughness, color, and gloss of titanium were measured and the differences compared with the control were analyzed. Additionally, titanium surfaces and abrasives in toothpastes were observed using a scanning electron microscope to compare the surface texture of each sample. Some toothpastes (abrasive+) significantly increased the difference in surface roughness, color, and gloss, compared with ultrapure water. Toothpaste (fluoride+/abrasive+) that had many polygonal abrasive particles led to the largest color differences and exhibited notable scratches and a larger number of contaminant- or corrosion-like black spots. In contrast, brushing with toothpaste without fluoride or abrasives (fluoride−/abrasive−) caused little change to the titanium surface. These results suggest that both fluoride and abrasives in toothpaste used for brushing may be factors that affect surface texture and corrosion resistance of titanium.

Calcium Phosphate Ceramic Blasting on Titanium Surface Improve Bone Ingrowth

2007 ◽  
Vol 361-363 ◽  
pp. 1351-1354 ◽  
Author(s):  
Eric Goyenvalle ◽  
Eric Aguado ◽  
Ronan Cognet ◽  
Xavier Bourges ◽  
G. Daculsi
Keyword(s):  
Surface Roughness ◽  
Calcium Phosphate ◽  
Biphasic Calcium Phosphate ◽  
Titanium Surface ◽  
Bone Ingrowth ◽  
High Surface ◽  
Titanium Implants ◽  
Calcium Phosphate Ceramic ◽  
Abrasive Particles ◽  
Roughened Surface

Surface roughness modulates the osseointegration of orthopaedic and dental titanium implants. High surface roughness is currently obtained by blasting of titanium implants with silica or aluminium abrasive particles. This process includes into the surface abrasive particles and may cause the release of cytotoxic silica or aluminium ions in the peri implant tissue. To overcome this drawback, we currently develop an innovative gridblasting process using Biphasic Calcium Phosphate (BCP) particles (RBBM Resorbable and Biocompatible Blast Media) to generate biocompatible roughened titanium surface. This work present the technique of blasting using RBBM particles to provide a roughened surface which does not release cytotoxic elements and (ii) to assess the effects of such a roughened surface for bone osteointegration in critical size rabbit defect. Our results demonstrate that resorbable biphasic calcium phosphate abrasive particles can be used to create titanium surface roughness. This grid blasting process increases surface roughness of titanium implants and offers a non cytotoxic surface for rapid and efficient osteointegration.

Preparation of Bioactive Hydroxyapatite on Pure Titanium

2009 ◽  
Vol 24 (1_suppl) ◽  
pp. 169-182 ◽  
Author(s):  
Wang Tianshi ◽  
Zhang Renji ◽  
Yan Yongnian
Keyword(s):  
Titanium Surface ◽  
Pure Titanium ◽  
Cell Counting ◽  
Cell Compatibility ◽  
Ha Coating ◽  
Micro Arc Oxidation ◽  
Surface Metal ◽  
Titanium Surfaces ◽  
Better Than ◽  
Complex Oxidation

In this study, a hydroxyapatite (HA) was coated on a pure titanium surface by means of a complex oxidation and hydrothermal treatment. First an anodic oxidation was done on the titanium plates, followed by micro-arc oxidation. The HA-coated specimens and pure titanium specimens were immersed in SLB for 1, 5, and 10 days, respectively, to study their electrochemical behavior. The corrosion currents of HA-coated specimens were less than pure titanium specimens. This indicated that HA coating prevented surface metal ions of the implant from dissolving, thereby, reducing the tissue toxicity. The cytotoxic effect on fibroblasts L929 cells was measured by cell counting after being seeded for 2, 4, 8, 12, and 24 h. The number of surface cell attachments on the HA-coated specimens was much greater than on pure titanium specimens. The morphology of the cells on the HA coating had normal shapes and spread well with some cells climbing onto surface pores while cells on the pure titanium were oval shaped. The results confirm that the cell compatibility on HA-coated ion titanium surfaces is much better than pure titanium.

A Modified Stethoscope to Assist in the Identification of Tooth Coloured Restorations

1994 ◽  
Vol 34 (1) ◽  
pp. 51-53
Author(s):  
J F Prinz
Keyword(s):  
Surface Roughness ◽  
Surface Texture ◽  
Simple Technique ◽  
Epidemiological Studies ◽  
The Body ◽  
Post Mortem ◽  
Fissure Sealants ◽  
Small Tooth ◽  
Restorative Materials ◽  
The Difference

Forensic odontologists are often called upon to assist in the identification of bodies. Since identification of the body relies on comparison of the post-mortem chart with the ante-mortem record it is important that all restorations present in the deceased's teeth are identified and correctly charted. If a restoration is present in an ante-mortem record then its absence in the post-mortem chart means that the two records cannot belong to the same person, However, tooth-coloured restorations can be difficult to identify, especially in the less than ideal conditions under which the odontologist may have to work. This study was designed to evaluate a simple technique for identifying tooth-coloured restorations, exploiting the difference between the surface roughness of restorative materials and that of the surrounding tooth substance. A conventional dental probe was substituted for the bell of a stethoscope. Differences in the surface texture of the tooth are reflected in changes in the sound heard by the examiner. The modified stethoscope is a useful and easily fabricated device, which may reduce the likelihood of small tooth-coloured restorations going unnoticed in post-mortem examinations. The ability to detect fissure sealants using the device may also prove useful in epidemiological studies.

Cellular Activity and Biomaterial's Surface Topography

2007 ◽  
Vol 539-543 ◽  
pp. 517-522 ◽  
Author(s):  
Barbara Nebe ◽  
Frank Luethen ◽  
Regina Lange ◽  
Ulrich Beck
Keyword(s):  
Protein Adsorption ◽  
Titanium Surface ◽  
Bone Cells ◽  
Pure Titanium ◽  
Active Surface ◽  
Complete Medium ◽  
Adapter Proteins ◽  
Cellular Activity ◽  
A Cell ◽  
Titanium Surfaces

The contact of a cell on the biomaterial’s surface is mediated by its adhesion components. The topography of titanium surfaces influences these adhesion components of osteoblasts, e.g. the integrins, the adapter proteins and the actin cytoskeleton. In our current experiments we were interested in why osteoblasts were strongly aligned to the grooves of a structured pure titanium surface (grade 2). The titanium was characterized by EIS to get insights in the electro-chemically active surface. We used MG-63 human bone cells, cultured in DMEM with 10% FCS at 37°C. For protein adsorption the titanium discs were incubated for 24h with complete medium containing soluble fibronectin at 37°C. Interestingly, only in the grooves cells adhered and were aligned and this is not dependent on the gravitation. The cell adhesion seems to depend on the protein adsorption of fibronectin which we could find to be adsorbed exclusively in the valleys. We speculate that there are local differences in electro-chemical characteristics of this structured titanium surface.

Controlling Cell Growth by Nanoparticles

2006 ◽  
Vol 950 ◽  
Author(s):  
Sergiy Zankovych ◽  
Joerg Bossert ◽  
Ines Thiele ◽  
Klaus D. Jandt ◽  
Liga Berzina-Cimdina
Keyword(s):  
Surface Roughness ◽  
Cell Proliferation ◽  
Cell Growth ◽  
Titanium Surface ◽  
Cell Attachment ◽  
Microcontact Printing ◽  
Control Cell ◽  
Superficial Layer ◽  
Titanium Surfaces ◽  
Titanium Substrates

ABSTRACTWe report preliminary results of using nanoparticles to control cell attachment and growth. We present the way to create titanium surfaces with different roughness in a rage between 2 nm and 117 nm by using nanoparticles as a superficial layer and varying the evaporation parameters. We examined cell proliferation on titanium substrates with increased surface roughness compared to smooth titanium surface. We used nanoparticles to create a micrometer-sized lateral layout onto substrates preliminary structured by microcontact printing. We demonstrate controlled cell growth on substrates laterally structured with nanoparticles.

scholarly journals UV Light-Generated Superhydrophilicity of a Titanium Surface Enhances the Transfer, Diffusion and Adsorption of Osteogenic Factors from a Collagen Sponge

2021 ◽  
Vol 22 (13) ◽  
pp. 6811
Author(s):  
Masako Tabuchi ◽  
Kosuke Hamajima ◽  
Miyuki Tanaka ◽  
Takeo Sekiya ◽  
Makoto Hirota ◽  
...  
Keyword(s):  
Dental Implant ◽  
Titanium Surface ◽  
Uv Light ◽  
Active Material ◽  
Pure Titanium ◽  
Weight Ratio ◽  
Collagen Sponge ◽  
Uv Treatment ◽  
Titanium Surfaces ◽  
Osteogenic Factors

It is a significant challenge for a titanium implant, which is a bio-inert material, to recruit osteogenic factors, such as osteoblasts, proteins and blood effectively when these are contained in a biomaterial. The objective of this study was to examine the effect of ultraviolet (UV)-treatment of titanium on surface wettability and the recruitment of osteogenic factors when they are contained in an atelocollagen sponge. UV treatment of a dental implant made of commercially pure titanium was performed with UV-light for 12 min immediately prior to the experiments. Superhydrophilicity on dental implant surfaces was generated with UV-treatment. The collagen sponge containing blood, osteoblasts, or albumin was directly placed on the dental implant. Untreated implants absorbed only a little blood from the collagen sponge, while the UV-treated implants absorbed blood rapidly and allowed it to spread widely, almost over the entire implant surface. Blood coverage was 3.5 times greater for the UV-treated implants (p < 0.001). Only 6% of the osteoblasts transferred from the collagen sponge to the untreated implants, whereas 16% of the osteoblasts transferred to the UV-treated implants (p < 0.001). In addition, a weight ratio between transferred albumin on the implant and measured albumin adsorbed on the implant was 17.3% in untreated implants and 38.5% in UV-treated implants (p < 0.05). These results indicated that UV treatment converts a titanium surface into a superhydrophilic and bio-active material, which could recruite osteogenic factors even when they were contained in a collagen sponge. The transfer and subsequent diffusion and adsorption efficacy of UV-treated titanium surfaces could be useful for bone formation when titanium surfaces and osteogenic factors are intervened with a biomaterial.

scholarly journals Hydrothermal Synthesis of Zinc-Incorporated Nano-Cluster Structure on Titanium Surface to Promote Osteogenic Differentiation of Osteoblasts and hMSCs

2021 ◽  
Vol 8 ◽  
Author(s):  
Ze-hua Tang ◽  
Shan Su ◽  
Yao Liu ◽  
Wen-qing Zhu ◽  
Song-mei Zhang ◽  
...  
Keyword(s):  
Osteogenic Differentiation ◽  
Titanium Surface ◽  
Hydrothermal Reaction ◽  
Simple Procedure ◽  
Cluster Structure ◽  
Pure Titanium ◽  
Titanium Surfaces ◽  
Potential Strategy ◽  
Nano Cluster

In this study, a novel modification strategy was established to synthesize a zinc-incorporated nano-cluster structure on titanium surface in a two-step hydrothermal reaction, and the osteogenic differentiation of osteoblasts and human bone marrow mesenchymal cells (hMSCs) was studied in the presence of this synthesized nanostructure. Analyses of the surface topography and elemental composition revealed that the zinc-containing cluster-like nanostructure was successfully prepared on the titanium surface. By altering the reaction time, three surface modifications were established. The three modified titanium surfaces had improved hydrophilicity and could continuously release zinc ions in a controlled manner. In vitro study displayed that three modified titanium surfaces, especially the samples prepared by reacting for 15 min, exhibited enhanced cell adhesion, proliferation, and osteogenic differentiation compared to the pure titanium surface. The study therefore conclude that the zinc-incorporated nano-cluster modification of titanium surface through a simple procedure can establish an enhanced osteogenic microenvironment and exhibit a potential strategy of titanium surface modification to accelerate the dental implant osseointegration.

scholarly journals A Newly Created Meso-, Micro-, and Nano-Scale Rough Titanium Surface Promotes Bone-Implant Integration

2020 ◽  
Vol 21 (3) ◽  
pp. 783 ◽  
Author(s):  
Masakazu Hasegawa ◽  
Juri Saruta ◽  
Makoto Hirota ◽  
Takashi Taniyama ◽  
Yoshihiko Sugita ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Titanium Surface ◽  
Therapeutic Option ◽  
Pure Titanium ◽  
Titanium Implants ◽  
Acid Etching ◽  
Commercially Pure Titanium ◽  
Micro Scale ◽  
Nano Scale ◽  
Meso Scale

Titanium implants are the standard therapeutic option when restoring missing teeth and reconstructing fractured and/or diseased bone. However, in the 30 years since the advent of micro-rough surfaces, titanium’s ability to integrate with bone has not improved significantly. We developed a method to create a unique titanium surface with distinct roughness features at meso-, micro-, and nano-scales. We sought to determine the biological ability of the surface and optimize it for better osseointegration. Commercially pure titanium was acid-etched with sulfuric acid at different temperatures (120, 130, 140, and 150 °C). Although only the typical micro-scale compartmental structure was formed during acid-etching at 120 and 130 °C, meso-scale spikes (20–50 μm wide) and nano-scale polymorphic structures as well as micro-scale compartmental structures formed exclusively at 140 and 150 °C. The average surface roughness (Ra) of the three-scale rough surface was 6–12 times greater than that with micro-roughness only, and did not compromise the initial attachment and spreading of osteoblasts despite its considerably increased surface roughness. The new surface promoted osteoblast differentiation and in vivo osseointegration significantly; regression analysis between osteoconductivity and surface variables revealed these effects were highly correlated with the size and density of meso-scale spikes. The overall strength of osseointegration was the greatest when the acid-etching was performed at 140 °C. Thus, we demonstrated that our meso-, micro-, and nano-scale rough titanium surface generates substantially increased osteoconductive and osseointegrative ability over the well-established micro-rough titanium surface. This novel surface is expected to be utilized in dental and various types of orthopedic surgical implants, as well as titanium-based bone engineering scaffolds.

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