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

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.

Download Full-text

In vivo chemical characterization of oral fluids in patients with osseointegrated dental implants by the means of Total reflection X-Ray fluorescence analysis (TXRF)

Clinical Oral Implants Research ◽

10.1111/clr.139_13042 ◽

2017 ◽

Vol 28 ◽

pp. 140-140

Keyword(s):

Dental Implants ◽

Chemical Characterization ◽

Fluorescence Analysis ◽

Total Reflection ◽

X Ray ◽

Oral Fluids

Download Full-text

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.309-311.391 ◽

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.

Download Full-text

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.47-50.467 ◽

2008 ◽

Vol 47-50 ◽

pp. 467-470 ◽

Cited By ~ 1

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.

Download Full-text

Physico-chemical characterization of zirconia–titania composites coated with an apatite layer for dental implants

Dental Materials ◽

10.1016/j.dental.2013.07.002 ◽

2013 ◽

Vol 29 (9) ◽

pp. 954-962 ◽

Cited By ~ 18

Author(s):

Juliana Marchi ◽

Eric M. Amorim ◽

Dolores R.R. Lazar ◽

Valter Ussui ◽

Ana Helena A. Bressiani ◽

...

Keyword(s):

Dental Implants ◽

Chemical Characterization ◽

Apatite Layer ◽

Physico Chemical

Download Full-text

Characterization of surface roughness in titanium dental implants measured with scanning tunnelling microscopy at atmospheric pressure

Biomaterials ◽

10.1016/0142-9612(86)90036-0 ◽

1986 ◽

Vol 7 (6) ◽

pp. 463-466 ◽

Cited By ~ 21

Author(s):

A.M. Baró ◽

N. García ◽

R. Miranda ◽

L. Vázquez ◽

C. Aparicio ◽

...

Keyword(s):

Surface Roughness ◽

Dental Implants ◽

Atmospheric Pressure ◽

Scanning Tunnelling Microscopy ◽

Scanning Tunnelling ◽

Tunnelling Microscopy ◽

Titanium Dental Implants

Download Full-text

Characterization of Surface Roughness in Thin Films and Small Particles

MRS Proceedings ◽

10.1557/proc-82-475 ◽

1986 ◽

Vol 82 ◽

Author(s):

R. Silva ◽

J.G. Perez-Ramirez ◽

D. Romeu ◽

R. Herrera ◽

R. Perez ◽

...

Keyword(s):

Thin Films ◽

Image Processing ◽

Surface Roughness ◽

Sample Surface ◽

Dark Field ◽

Small Particles ◽

Metallic Particles ◽

Weak Beam ◽

Processing Techniques

ABSTRACTThe surface roughness of small metallic particles and thin films is determined using TEM weak beam dark field images (WBDF) combined with image processing techniques. It is shown that the well known sensitivity of WBDF images to monoatomic steps on the sample surface can be largely improved by the use of image processing. The optimum conditions for step imaging and for the processing for small particles of Au, Pt and Pd and thin films of Au and Ag are discussed. It is found that under most conditions the surface of the particles and the films is very rough at the atomic level in agreement with the current theories of crystal growth.

Download Full-text

Comparison of Ion-Milling Techniques For Cross-Sectional TEM of Semiconductors

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100117807 ◽

1985 ◽

Vol 43 ◽

pp. 166-167

Author(s):

Julia T. Luck ◽

C. W. Boggs ◽

S. J. Pennycook

Keyword(s):

Analytical Techniques ◽

Sample Surface ◽

Ion Milling ◽

Cross Sectional ◽

Reliable Technique ◽

Near Surface ◽

Transmission Electron ◽

Thin Region ◽

Transient Thermal

The use of cross-sectional Transmission Electron Microscopy (TEM) has become invaluable for the characterization of the near-surface regions of semiconductors following ion-implantation and/or transient thermal processing. A fast and reliable technique is required which produces a large thin region while preserving the original sample surface. New analytical techniques, particularly the direct imaging of dopant distributions, also require good thickness uniformity. Two methods of ion milling are commonly used, and are compared below. The older method involves milling with a single gun from each side in turn, whereas a newer method uses two guns to mill from both sides simultaneously.

Download Full-text