Effects of Surface Roughness of Titanium Implants on Periimplant Tissue

1996 ◽  
Vol 50 (1) ◽  
pp. 287-306 ◽  
Author(s):  
Hironobu Andou
Keyword(s):  
Surface Roughness ◽  
Titanium Implants

scholarly journals Selected Physicochemical Properties of Diamond Like Carbon (DLC) Coating on Ti-13Nb-13Zr Alloy Used for Blood Contacting Implants

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5077
Author(s):  
Magdalena Antonowicz ◽  
Roksana Kurpanik ◽  
Witold Walke ◽  
Marcin Basiaga ◽  
Jozef Sondor ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Physicochemical Properties ◽  
Fundamental Problem ◽  
Circulatory System ◽  
Titanium Implants ◽  
Diamond Like Carbon ◽  
Dlc Coating ◽  
13Zr Alloy ◽  
Artificial Plasma ◽  
Modification Of Titanium

Despite high interest in the issues of hemocompatibility of titanium implants, particularly those made of the Ti-13Nb-13Zr alloy, the applied methods of surface modification still do not always guarantee the physicochemical properties required for their safe operation. The factors that reduce the efficiency of the application of titanium alloys in the treatment of conditions of the cardiovascular system include blood coagulation and fibrous proliferation within the vessel’s internal walls. They result from their surfaces’ physicochemical properties not being fully adapted to the specifics of the circulatory system. Until now, the generation and development mechanics of these adverse processes are not fully known. Thus, the fundamental problem in this work is to determine the correlation between the physicochemical properties of the diamond like carbon (DLC) coating (shaped by the technological conditions of the process) applied onto the Ti-13Nb-13Zr alloy designed for contact with blood and its hemocompatibility. In the paper, microscopic metallographic, surface roughness, wettability, free surface energy, hardness, coating adhesion to the substrate, impendence, and potentiodynamic studies in artificial plasma were carried out. The surface layer with the DLC coating ensures the required surface roughness and hydrophobic character and sufficient pitting corrosion resistance in artificial plasma. On the other hand, the proposed CrN interlayer results in better adhesion of the coating to the Ti-13Nb-13Zr alloy. This type of coating is an alternative to the modification of titanium alloy surfaces using various elements to improve the blood environment’s hemocompatibility.

scholarly journals Morphological and Chemical Characterization of Titanium and Zirconia Dental Implants with Different Macro- and Micro-Structure

2020 ◽  
Vol 10 (21) ◽  
pp. 7520
Author(s):  
Maria Menini ◽  
Francesco Pera ◽  
Francesco Bagnasco ◽  
Francesca Delucchi ◽  
Elisa Morganti ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Dental Implants ◽  
Chemical Characterization ◽  
Sample Surface ◽  
Titanium Implants ◽  
Good Care ◽  
Micro Structure ◽  
Chemical Residues ◽  
Micro Structures

Background: The aim of this study was to evaluate the macro- and micro-structure and the chemical composition of the surface of 5 different commercially available dental implants. Roughness values were also calculated. Materials and Methods: 1 zirconia implant (NobelPearl of Nobel Biocare) and 4 titanium implants, Syra (Sweden&Martina), Prama (Sweden&Martina), T3 (Biomet 3i), and Shard (Mech&Human), were analyzed through SEM-EDX analysis and quantitative evaluation of surface roughness (1 sample), and XPS chemical analysis (1 sample). Surface roughness was quantitatively assessed using the stereo-SEM method (SSEM). The following area roughness parameters were calculated, according to ISO25178: Sa, Sz, and Sdr. Results: From the SEM observations, all the implants analyzed presented modern well-developed micro-structures as the result of the specific process of double acid etching alone or combined with other additional treatments. Roughness values were generally greater at the level of the implant body and lower at the collar. The chemical characterization of the implant surfaces exhibited excellent results for all of the implants and indicated good care in the production processes. Conclusions: All the samples were well-conceived in terms of topography and surface roughness, and clean in terms of chemical residues.

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.

Surface Modification of Ti Dental Implants by Grit-Blasting and Micro-Arc Oxidation

2008 ◽  
Vol 47-50 ◽  
pp. 467-470 ◽  
Author(s):  
Yeon Wook Kim
Keyword(s):  
Surface Roughness ◽  
Dental Implants ◽  
High Surface ◽  
Titanium Implants ◽  
Osteoblastic Cell ◽  
Implant Surface ◽  
Oxidation Treatment ◽  
Grit Blasting ◽  
Micro Arc Oxidation ◽  
Titanium Dental Implants

The osseointegration capability of titanium dental implants is related to their chemical composition and surface roughness. In this study, the combination of grit-blasting and micro-arc oxidation had been used for producing the improved implant surfaces. The ceramic particles were projected to titanium dental implants through a nozzle at high velocity by means of compressed air to get high surface roughness. Then the surface of titanium implants was modified by micro-arc oxidation treatment. The current density, frequency and duty were 50-300 mA/cm2, 100 Hz, and 50%, respectively. A porous TiO2 layer was formed on the surface after the oxidation treatment. The surface structure of oxidized implants exhibited nanometer-sized pores with an average diameter of 0.2 µm. The TiO2 passive layer of the implant surface can attribute to the excellent biocompatibility. The high roughness (Ra=0.182 µm) formed by grit-blasting maximizes the interlocking between mineralized bone and the surface of the implant. Surface roughness in the manometer range formed by micro-arc oxidation treatment would play an important role in the adsorption of proteins, adhesion of osteoblastic cell and thus the rate of osseointegration.

Harder and Stiffer Bone Osseointegrated to Roughened Titanium

2006 ◽  
Vol 85 (6) ◽  
pp. 560-565 ◽  
Author(s):  
F. Butz ◽  
H. Aita ◽  
C.J. Wang ◽  
T. Ogawa
Keyword(s):  
Surface Roughness ◽  
Elastic Modulus ◽  
Biomechanical Properties ◽  
Titanium Implants ◽  
Machined Surface ◽  
Implant Surface ◽  
Nano Indentation ◽  
Etched Surface ◽  
Post Implantation

Mechanisms underlying the beneficial anchorage of roughened titanium implants have not been identified. We hypothesized that the implant surface roughness alters intrinsic biomechanical properties of bone integrated to titanium. Nano-indentation performed on two- and four-week post-implantation bone specimens of rats revealed that bone integrated to acid-etched titanium was approximately 3 times harder than that integrated to the machined titanium, both at the osseointegration interface and at the inner area of the peri-implant bone. The hardness of the acid-etched surface-associated bone was equivalent to that of untreated cortical bone at week 4, while the bone hardness around the machined surface was equivalent to that of the untreated trabecular bone. The elastic modulus of the integrated bone was 1.5 to 2.5 times greater around the acid-etched surface than around the machined surface. Analysis of the data suggests that the implant surface roughness affects the biomechanical quality of osseo-integrated bone, and that the bone integrated to the acid-etched surface is harder and stiffer than the bone integrated to the machined surface.

scholarly journals The Effects of Combined Micron-Scale Surface and Different Nanoscale Features on Cell Response

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Yi Kang ◽  
Xuelei Ren ◽  
Xin Yuan ◽  
Li Ma ◽  
Youneng Xie ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Surface Modification ◽  
Titanium Implants ◽  
Acid Etching ◽  
Control Group ◽  
Submicroscopic Structure ◽  
Proliferation And Differentiation ◽  
Sand Particles ◽  
Nanoscale Features ◽  
Scale Surface

Sandblasting and acid-etching (SLA) and anodization are the two most commonly used methods for surface modification of biomedical titanium. However, there are unavoidable problems such as residual sand particles and lack of hydrophilicity on the surface of titanium sheets treated with SLA technology. In addition, titanium implants showed only the micro/submicroscopic structure. In order to avoid the residue of sand particles in the surface of titanium, the two surface treatments etching treatment (E) and etched-anodizing (EA) on titanium were used, and their surface topography, surface chemistry, and surface roughness were compared with those of the SLA control group. Their wettability and the biocompatibility were also compared and evaluated. The results show that both E and EA samples have the micro/nano hierarchical structure and better wettability compared with the SLA samples. Their performances, especially the E surfaces, were enhanced in terms of cell adhesion, spreading, proliferation, and differentiation abilities.

scholarly journals Alterations in Surface Roughness and Chemical Characteristics of Sandblasted and Acid-Etched Titanium Implants after Irradiation with Different Diode Lasers

2020 ◽  
Vol 10 (12) ◽  
pp. 4167 ◽  
Author(s):  
Hak-Ki Kim ◽  
Su-Yeon Park ◽  
Keunbada Son ◽  
Yong-Gun Kim ◽  
Won-Jae Yu ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Chemical Composition ◽  
Diode Laser ◽  
Titanium Surface ◽  
Diode Lasers ◽  
Weight Percent ◽  
Titanium Implants ◽  
Significant Difference ◽  
Probe Microscope ◽  
The Mean

The purpose of this study was to evaluate the effects of diode laser irradiation with different wavelengths on the surface roughness (Ra) and chemical composition of sandblasted and acid-etched (SLA) titanium implants. Three types of diode lasers with different wavelengths were irradiated on the titanium implants at output powers of 1.0, 2.0, and 3.0 W. The mean Ra values for all spots were measured using a scanning probe microscope. Analysis of variance tests were performed to verify the differences in the Ra between groups according to the type of lasers or power out (α = 0.05). For analyzing chemical composition, atomic and weight percent ratios of titanium, oxygen, and carbon were measured using energy-dispersive spectrometry (EDS). The mean Ra of titanium disc was higher in the 3.0-W output than in 1.0-W or 2.0-W output, but there was no statistically significant difference (p > 0.05). In EDS analysis, it was difficult to find a clear difference in the titanium, oxygen, and carbon element ratios between the laser-irradiated and nonirradiated groups. The irradiation of diode laser with 1.0, 2.0, and 3.0 W output for 15 s decontaminated the SLA titanium surface without damage. However, additional clinical trials will be needed to verify the results of the present study.

Improving the surface energy of titanium implants by the creation of hierarchical textures on the surface via three-dimensional elliptical vibration turning for enhanced osseointegration

2019 ◽  
Vol 233 (12) ◽  
pp. 1226-1236 ◽  
Author(s):  
Sayed Ali Sajjady ◽  
Mohammad Lotfi ◽  
Saeid Amini ◽  
Hamidreza Toutounchi ◽  
Alireza Bagheri Bami
Keyword(s):  
Surface Roughness ◽  
Contact Angle ◽  
Titanium Surface ◽  
Three Dimensional ◽  
Titanium Implants ◽  
Bone Implant ◽  
Surface Hydrophilicity ◽  
Elliptical Vibration ◽  
Water Drops ◽  
Lower Contact

An increase in bone-implant contact and an increase in surface hydrophilicity are the two important factors involved in improving osseointegration. Therefore, three-dimensional elliptical vibration turning method is applied to increase the hydrophilicity of titanium surface by the generation of hierarchical nano- and micro-textures. That being the case, face turning process at different cutting conditions is carried out in this research. Surface roughness and the contact angle of water drops with machined surfaces were selected to be measured for the analysis of surface hydrophilicity. The results show that an additional surface area can be achieved by the generation of micro- or nano-textures, resulting in a lower contact angle. Furthermore, intermittent movement of cutting tool in vibration cutting causes the process to be more stable, achieving the desired range of surface roughness.

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