Relative Effect of Sand Blasting and Acid Etching on the Surface Roughness of Pure Titanium and Titanium Alloy for Dental Implants

2014 ◽  
Vol 1043 ◽  
pp. 145-148
Author(s):  
Yashkta Shivalingam Nadar ◽  
Muralithran Govindan Kutty ◽  
Abdul Razak Abdul Aziz
Keyword(s):  
Surface Roughness ◽  
Titanium Alloy ◽  
Oxide Layer ◽  
Dental Implants ◽  
Titanium Oxide ◽  
Pure Titanium ◽  
Relative Effect ◽  
Acid Etching ◽  
Sand Blasting ◽  
Relative Contribution

The objective of this study is to investigate the effect of sandblasting and acid etching on the surface roughness and morphology of pure titanium and titanium alloy to compare their relative contribution. Both of these samples were first sandblasted and then acid etched using HCL and H2SO4for different duration and temperature. The results of this study indicated that the roughness value for pure titanium increased after acid etching while the opposite occurred for the titanium alloy. It is suggested that the decrease is due to significant over etching of the protective titanium oxide layer on the alloy.

Corrosion Performance of Medical Titanium Alloy with Different Surface Morphology

2014 ◽  
Vol 936 ◽  
pp. 1106-1111
Author(s):  
Jie Zhang ◽  
Song Ying Zhang ◽  
Bin Liu ◽  
Ming Xin Li ◽  
Qian Qian Lin ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Surface Morphology ◽  
Acid Etching ◽  
Particle Sizes ◽  
Corrosion Performance ◽  
Sand Blasting ◽  
Potentiodynamic Polarization Curves ◽  
Corrosion Resistance Property ◽  
Increasing Trend

[Objective] The purpose of this study was to evaluate the variation of surface morphology of titanium alloy after sand blasting with different particle sizes of Al2O3sand and acid etching, and its corrosion resistance property. [Methods] The surfaces of titanium alloy were first treated with the different sands and then acid etched with mixture of 18% HCl and 48% H2SO4. The morphology of samples was investigated by scanning electron microscopy (SEM). The potentiodynamic polarization curves of the various surfaces were obtained by electrochemical workstation (CHI 660E) in simulated body fluid (SBF). [Results and conclusions] It is observed that pore sizes on surface increases with the increase of sand grain diameter while there is no obvious change after acid etching. After sand blasting and acid etching, the corrosion resistance of titanium alloy was improved. However, as the pore size of the surface increases, the corrosion resistance gradually degrades and this becomes even more obvious after acid etching. The investigation of the corrosion rate indicates there is an increasing trend with the emergence of small pores.

Effect of Acid Etching on Surface Chemistry and Microstructure of HA and CMP Grit-Blasted Ti Surface

2006 ◽  
Vol 309-311 ◽  
pp. 391-394
Author(s):  
A.W. Haryadi ◽  
Chang Kuk You ◽  
Shin Yoon Kim ◽  
Eui Kyun Park ◽  
Kyo Han Kim ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Surface Chemistry ◽  
Dental Implants ◽  
Acid Concentration ◽  
Etching Rate ◽  
Acid Etching ◽  
Etching Time ◽  
Etching Solution ◽  
Grit Blasting

Grit blasting using bioactive HA and biodegradable CMP followed by acid etching has been done. HNO3 and H3PO4 were used for the etching solution by controlling the concentration and etching time to know the effect on the surface chemistry and morphology of the Ti implant. Characterization of samples was done by using SEM, EDX and surface profilometer. The contents of residues on Ti surface decreased with increasing acid concentration and etching time. It was observed that the acidic etching rate of HA grits on Ti surface was faster than that of CMP grits. And HNO3 etched more rapidly the HA and CMP grits on Ti surface, compared to H3PO4. Therefore, the surface roughness of dental implants can be controlled by having appropriate combination of acid concentration and etching time.

scholarly journals Surface Modification of Dental Implants - A Review

2021 ◽  
Vol 10 (17) ◽  
pp. 1246-1250
Author(s):  
Shamaa Anjum ◽  
Arvina Rajasekar
Keyword(s):  
Surface Roughness ◽  
Surface Modification ◽  
Dental Implants ◽  
Surface Engineering ◽  
Surface Modifications ◽  
Calcium Phosphate Coating ◽  
Acid Etching ◽  
Success Rates ◽  
Implant Surface ◽  
Osteoblast Activity

The use of dental implants for the replacement of missing teeth has increased in the last 30 years. The success rates for implant placement depend on a series of both biological and clinical steps which starts with primary stability that is being provided by the amount, quality and the distribution of bone within the proposed implant site. The most important factor in implant osseointegration is surface roughness, which shows increased osteoblast activity at 1 to 100 μm of the surface roughness when compared to a smooth surface. Rough surfaces have excellent osseointegration than smooth surfaces, but the results of research have been diverse, and it is evident that multiple treatments provide good results. The surfaces of a dental implant have been modified in several ways to improve its biocompatibility and speed up osseointegration. Literature says that any surface modification provides a good surface for osseointegration of the implant when the surface roughness is about 0.44 ~ 8.68 μm. It is also said that acid etching and coating are the most preferred methods for creating good roughness of the implant surface. From animal studies, it is known that implant surface modifications provided by biomolecular coating seemed to enhance the osseointegration by promoting peri-implant bone formation in the early stages of healing. It also seemed to improve histomorphometric analysis and biomechanical testing results. This article reviews the surface modifications of dental implants for the achievement of better success rates. Various methods are used to modify the topography or the chemistry of the implant surfaces which includes acid etching, anodic oxidation, blasting, treatment with fluoride, and calcium phosphate coating. These modifications provide a faster and a stronger osseointegration.1 Recently, hydrophilic properties added to the roughened surfaces or some osteogenic peptides coated on the surfaces shows higher biocompatibility and have induced faster osseointegration compared to the existing modified surfaces. With development in surface engineering techniques, new information on the properties, behaviour, and the reaction of various materials could be discovered which in turn allows the discovery of new materials, modification techniques and design of bio implants for the future. KEY WORDS Dental Implants, Surface Modifications, Biocompatibility, Surface Topography

scholarly journals Surface Modifications and Their Effects on Titanium Dental Implants

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
A. Jemat ◽  
M. J. Ghazali ◽  
M. Razali ◽  
Y. Otsuka
Keyword(s):  
Mechanical Properties ◽  
Surface Roughness ◽  
Dental Implants ◽  
Pure Titanium ◽  
Titanium Implant ◽  
Implant Surface ◽  
Coating Application ◽  
Good Surface ◽  
Dental Implant Surface ◽  
Good Surface Roughness

This review covers several basic methodologies of surface treatment and their effects on titanium (Ti) implants. The importance of each treatment and its effects will be discussed in detail in order to compare their effectiveness in promoting osseointegration. Published literature for the last 18 years was selected with the use of keywords like titanium dental implant, surface roughness, coating, and osseointegration. Significant surface roughness played an important role in providing effective surface for bone implant contact, cell proliferation, and removal torque, despite having good mechanical properties. Overall, published studies indicated that an acid etched surface-modified and a coating application on commercial pure titanium implant was most preferable in producing the good surface roughness. Thus, a combination of a good surface roughness and mechanical properties of titanium could lead to successful dental implants.

Ti Oxide Films Formed by an Anodizing Process for Use in Dental Implants

2007 ◽  
Vol 124-126 ◽  
pp. 1777-1780 ◽  
Author(s):  
Ji Eon Lee ◽  
Kye Sung Kim ◽  
Young Rae Cho ◽  
Kwang Ho Kim ◽  
Won Sub Chung
Keyword(s):  
Surface Roughness ◽  
Oxide Layer ◽  
Dental Implants ◽  
Electrolyte Concentration ◽  
Oxide Films ◽  
Anodic Oxide ◽  
Structural Morphology ◽  
Anodic Oxide Films ◽  
Current Densities ◽  
Plate Type

Anodic oxide films were formed on titanium using an electrolyte solution containing phosphoric acid for dental implants by an electrochemical method. The parameters of the oxidation process were current density and electrolyte concentration. The micro structural morphology, surface roughness, thickness of the oxide layer and the behavior of voltage-time curves were examined. The results show that the surface roughness, porosity size and the thickness of the oxide layer showed similar trends as the process parameters were changed. The surface morphology of the samples was observed for different current densities at a constant electrolyte concentration. The pore size, thickness and roughness of the anodic oxide films are directly proportional to the maximum voltage and the slope of the voltage to time transient (dV/dt) curves during the growth of the galvanostatic anode oxide film on plate type Ti.

Effect of Surface Preparation and Passivation Treatment on Surface Topography of Ti6Al4V for Dental Implants

2015 ◽  
Vol 809-810 ◽  
pp. 513-518 ◽  
Author(s):  
Gabriela Strnad ◽  
Nicolae Chirila ◽  
Laszlo Jakab-Farkas
Keyword(s):  
Surface Topography ◽  
Dental Implants ◽  
Surface Preparation ◽  
Acid Etching ◽  
Efficient Procedure ◽  
Sand Blasting ◽  
Dental Implant Surface ◽  
Different Temperatures ◽  
Passivation Treatment ◽  
Effect Of Surface

The major goal of our research work is to develop an effective and efficient procedure to prepare surfaces with an average surface roughness Ra of 1...2,5 μm and a proper surface topography, as the morphology of dental implant surface is of extreme importance in the process of implant osseointegration. The aim of present research was to elucidate the effect of surface preparation and passivation treatment on topography of Ti6Al4V surfaces for dental implants, and to perform an efficient procedure, in terms of process time. Thirty samples were prepared, some samples were subjected to sand blasting, all samples were acid etched using a dual bath of H2SO4 1n and HCl 1n (1:1) at different temperatures (60°C, 80°C, and 100°C) using different process durations (1 h, 3 h, 6 h, 12 h, and 24 h). After acid etching procedure some samples were passivated in 30% HNO3 at room temperature, for 15 min. Scanning electron microscopy was performed in order to characterize the topography of the surfaces. We found that sand blasting and passivation treatment promotes the formation of a proper surface topography with large, smooth valleys (∼50 μm), different size large peaks (∼30 μm), and micropores (<10 μm) opened on the surface of valleys and peaks, required by a good osseointegration. We showed that the same proper morphology can be achieved by acid etching at different temperatures, using different process duration. The most efficient procedure takes place at 100°C, with process times of 1...3 hours.

Sign in / Sign up

Export Citation Format

Share Document