scholarly journals Anatase Forming Treatment without Surface Morphological Alteration of Dental Implant

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5280
Author(s):  
Saturnino Marco Lupi ◽  
Benedetta Albini ◽  
Arianna Rodriguez y Baena ◽  
Giulia Lanfrè ◽  
Pietro Galinetto

The osseointegration of titanium implants is allowed by the TiO2 layer that covers the implants. Titania can exist in amorphous form or in three different crystalline conformations: anatase, rutile and brookite. Few studies have characterized TiO2 covering the surface of dental implants from the crystalline point of view. The aim of the present study was to characterize the evolution of the TiO2 layer following different surface treatments from a crystallographic point of view. Commercially pure titanium and Ti-6Al-4V implants subjected to different surface treatments were analyzed by Raman spectroscopy to evaluate the crystalline conformation of titania. The surface treatments evaluated were: machining, sandblasting, sandblasting and etching and sandblasting, etching and anodization. The anodizing treatment evaluated in this study allowed to obtain anatase on commercially pure titanium implants without altering the morphological characteristics of the surface.

Coatings ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 112 ◽  
Author(s):  
Hsing-Ning Yu ◽  
Hsueh-Chuan Hsu ◽  
Shih-Ching Wu ◽  
Cheng-Wei Hsu ◽  
Shih-Kuang Hsu ◽  
...  

Commercially pure titanium (c.p. Ti) is often used in biomedical implants, but its surface cannot usually combine with the living bone. A coating of hydroxyapatite (HA) on the surface of titanium implants provides excellent mechanical properties and has good biological activity and biocompatibility. For optimal osteocompatibility, the structure, size, and composition of HA crystals should be closer to those of biological apatite. Our results show that the surface of c.p. Ti was entirely covered by rod-like HA nanoparticles after alkali treatment and subsequent hydrothermal treatment at 150 °C for 48 h. Nano-sized apatite aggregates began to nucleate on HA-coated c.p. Ti surfaces after immersion in simulated body fluid (SBF) for 6 h, while no obvious precipitation was found on the uncoated sample. Higher apatite-forming ability (bioactivity) could be acquired by the samples after HA coating. The HA coating featured bone-like nanostructure, high crystallinity, and carbonate substitution. It can be expected that HA coatings synthesized from eggshells on c.p. Ti through a hydrothermal reaction could be used in dental implant applications in the future.


2013 ◽  
Vol 787 ◽  
pp. 376-381 ◽  
Author(s):  
Aleksandr Aleksandrovich Fomin ◽  
Igor Vladimirovich Rodionov ◽  
Aleksey Borisovich Steinhauer ◽  
Marina Alekseevna Fomina ◽  
Andrey Mikhailovich Zakharevich ◽  
...  

The article describes prospective composite biocompatible titania coatings modified with hydroxyapatite nanoparticles and obtained on intraosseous implants fabricated from commercially pure titanium. Consistency changes of morphological characteristics and crystalline structure, mechanical properties and biocompatibility of experimental titanium implant coatings obtained by the combination of oxidation and surface modification with hydroxyapatite during induction heat treatment are defined.


1994 ◽  
Vol 12 (2) ◽  
pp. 274-285 ◽  
Author(s):  
L. Carlsson ◽  
L. Regnér ◽  
C. Johansson ◽  
M. Gottlander ◽  
P. Herberts

2012 ◽  
Vol 24 (8) ◽  
pp. 896-903 ◽  
Author(s):  
Thallita P. Queiroz ◽  
Francisley Á. Souza ◽  
Antônio C. Guastaldi ◽  
Rogério Margonar ◽  
Idelmo R. Garcia-Júnior ◽  
...  

2003 ◽  
Vol 31 (3) ◽  
pp. 173-180 ◽  
Author(s):  
Samuel P. Xavier ◽  
Paulo S.P. Carvalho ◽  
Márcio M. Beloti ◽  
Adalberto L. Rosa

2010 ◽  
Vol 21 (2) ◽  
pp. 111-116 ◽  
Author(s):  
Antonio Alves de Almeida-Júnior ◽  
Renata Garcia Fonseca ◽  
Isabella Gagliardi Haneda ◽  
Filipe de Oliveira Abi-Rached ◽  
Gelson Luis Adabo

Investigation of the effectiveness of surface treatments that promote a strong bond strength of resin cements to metals can contribute significantly to the longevity of metal-ceramic restorations. This study evaluated the effect of surface treatments on the shear bond strength (SBS) of a resin cement to commercially pure titanium (CP Ti). Ninety cast CP Ti discs were divided into 3 groups (n=30), which received one of the following airborne-particle abrasion conditions: (1) 50 ?m Al2O3 particles; (2) 30 ?m silica-modified Al2O3 particles (Cojet Sand); (3) 110 ?m silica-modified Al2O3 particles (Rocatec). For each airborne-particle abrasion condition, the following post-airborne-particle abrasion treatments were used (n=10): (1) none; (2) adhesive Adper Single Bond 2; (3) silane RelyX Ceramic Primer. RelyX ARC resin cement was bonded to CP Ti surfaces. All specimens were thermally cycled before being tested in shear mode. Failure mode was determined. The best association was Rocatec plus silane. All groups showed 100% adhesive failure. There were combinations that promote higher SBS than the protocol recommended by the manufacturer of RelyX ARC.


2019 ◽  
Vol 71 (10) ◽  
pp. 1166-1176
Author(s):  
Onur Çomakli ◽  
Mustafa Yazici ◽  
Tuba Yetim ◽  
Fatih Yetim ◽  
Ayhan Celik

Purpose This paper aims to investigate the structural, tribological and electrochemical properties of Ag2O, ZnO, NiO coatings and Ag2O/ZnO/NiO nanocomposite films deposited on commercially pure titanium. Design/methodology/approach Ceramic thin films (Ag2O, ZnO, NiO coatings and Ag2O/ZnO/NiO nanocomposite film) were deposited on commercially pure titanium (CP-Ti) substrate. Surface characterization of the uncoated and coated samples was made by structural surveys (scanning electron microscopic examinations and X-ray diffraction analyses), hardness measurements, tribological and corrosion experiments. Findings Results were indicated that sol-gel coatings improved the wear and corrosion resistance of CP-Ti, and the best results were seen at the nanocomposite coating. It may be attributed to its small grain size, high surface hardness and high film thickness. Originality/value This study can be a practical reference and offers insight into the influence of nanocomposite ceramic films on the increase of hardness, tribological and corrosion performance. Also, the paper displayed a promising approach to produce Ag2O/ZnO/NiO nanocomposite coating on commercially pure titanium implants for biomedical applications.


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