Titanium implant surface modification by cathodic reduction in hydrofluoric acid: Surface characterization and <i>in vivo</i> performance

Lamolle, Sébastien F.; Monjo, Marta; Lyngstadaas, Ståle Petter; Ellingsen, Jan Eirik; Haugen, Håvard Jostein

doi:10.1002/jbm.a.31898

Cited by 112 publications

(132 citation statements)

References 54 publications

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“…The higher the ability of the interface to withstand these three types of forces the bigger the loads the implant can support. The ability of the interface to resist compressive forces is substantial [2] in comparison to the capacity to stand tensile forces even though some attempts have been made to enhance the latter [3][4][5]. Much research has been spent on trying to enhance the bone implant interfacial shear strength through modification of the roughness of the implant surface.…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Titanium Dental Implants. II: Local Biomechanical Model~!2009-09-02~!2009-11-20~!2010-04-28~!

Hansson¹,

Löberg²,

Mattisson³

et al. 2010

TOBIOMTJ

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A theoretical model for estimation of the bone-to-implant interfacial shear strength induced by implant surface roughness has been developed. Two different assumptions regarding the constitutive behaviour of the interfacial bone were made. 1) The bone exhibits an ideally plastic deformation -the plastic mode.2) The bone exhibits a linearly elastic deformation -the elastic mode. In the plastic mode it was found that the estimated interfacial shear strength was directly proportional to the 2D surface roughness parameter mean slope. For the elastic mode a new 2D surface roughness parameter was defined. With this parameter a direct proportionality between parameter value and estimated interfacial shear strength was also obtained in the elastic mode. The model was extended into 3D mode. The model was used to evaluate topographies of implant surfaces. The calculated results showed a similar trend to interfacial shear strength results reported in vivo.

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Section: Introductionmentioning

confidence: 99%

Characterisation of Titanium Dental Implants. II: Local Biomechanical Model~!2009-09-02~!2009-11-20~!2010-04-28~!

Hansson¹,

Löberg²,

Mattisson³

et al. 2010

TOBIOMTJ

View full text Add to dashboard Cite

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“…Although fast bone response to the calcium phosphate-coated surface and its similarity to bone mineral lead to the possibility of its application to some extreme cases like osteoporotic patients, such an application needs more studies including clinical trials [31]. Another example of chemical modifications is a fluoride-modified surface, which is made by reducing the Ti surface on a cathode to attract the cation, fluoride ion, in a hydrofluoric acid solution [38]. Adding fluoride treatment to titanium Fig.…”

mentioning

confidence: 99%

“…Note that the SLA surface mainly displays a honeycomb-like structure while the anodized surface shows a craterlike structure. dioxide (TiO 2 ) grit-blasted cp Ti surface results in a superior bone response to that of TiO 2 grit-blasted cp Ti surface [38][39][40][41]. Low concentration of hydrogen fluoride etching on Ti surface was reported to enhance the binding between the bone and the surface considerably [38].…”

mentioning

confidence: 99%

“…dioxide (TiO 2 ) grit-blasted cp Ti surface results in a superior bone response to that of TiO 2 grit-blasted cp Ti surface [38][39][40][41]. Low concentration of hydrogen fluoride etching on Ti surface was reported to enhance the binding between the bone and the surface considerably [38]. The fluoride modification added to TiO 2 grit-blasted cp Ti surface showed improved osteoblastic differentiation in vitro and increased bone formation in vivo [39].…”

mentioning

confidence: 99%

“…Anodized, calcium phosphate-coated, and fluoridemodified Ti surfaces, which use advanced chemical modifications and are presently widespread in the market, result in increased affinity to osteoblasts as well as faster and stronger in vivo osseointegration than turned cp Ti surfaces [18,19,31,34,38,39]. However, little difference, especially at the in vivo level, has been found in bone response between these chemical effect-added Ti surfaces and the topographically modified Ti surfaces (the blasted, the acidetched, or the SLA Ti surface) [13,28,32,[45][46][47][48][49].…”

mentioning

confidence: 99%

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Reality of Dental Implant Surface Modification: A Short Literature Review

Yeo¹

2014

TOBEJ

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Screw-shaped endosseous implants that have a turned surface of commercially pure titanium have a disadvantage of requiring a long time for osseointegration while those implants have shown long-term clinical success in single and multiple restorations. Titanium implant surfaces have been modified in various ways to improve biocompatibility and accelerate osseointegration, which results in a shorter edentulous period for a patient. This article reviewed some important modified titanium surfaces, exploring the in vitro, in vivo and clinical results that numerous comparison studies reported. Several methods are widely used to modify the topography or chemistry of titanium surface, including blasting, acid etching, anodic oxidation, fluoride treatment, and calcium phosphate coating. Such modified surfaces demonstrate faster and stronger osseointegration than the turned commercially pure titanium surface. However, there have been many studies finding no significant differences in in vivo bone responses among the modified surfaces. Considering those in vivo results, physical properties like roughening by sandblasting and acid etching may be major contributors to favorable bone response in biological environments over chemical properties obtained from various modifications including fluoride treatment and calcium phosphate application. Recently, hydrophilic properties added to the roughened surfaces or some osteogenic peptides coated on the surfaces have shown higher biocompatibility and have induced faster osseointegration, compared to the existing modified surfaces. However, the long-term clinical studies about those innovative surfaces are still lacking.

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Recent Advances in Antibacterial Superhydrophobic Coatings

Zhan

Amirfazli

et al. 2021

Adv Eng Mater

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Microorganisms have existed for hundreds of millions of years and they have adapted to colonize on surfaces. [1] Bacteria are ubiquitous in the human living environment. Most bacteria spread through medical equipments and contacting with each other. [2] All over the world, the diseases caused by bacterial infections have brought terrible catastrophe to human beings. [3][4][5][6][7] Generally, people infected with infectious diseases are directly or indirectly related to contact with pathogenic microorganisms. The main stages of the attachment of bacteria at the interface include the migration of bacteria to the surface, the reversible and irreversible interactions between bacteria and the interface, the specific adsorption of bacteria on the substrate, and the proliferation of bacteria, thus forming a bacterial biofilm on the surface (Figure 1). [8] The bacteria can multiply quickly under suitable conditions, which induce various diseases and cause invalidation of apparatus. The colonization of bacteria on surfaces can result in chronic infections, [9] the failure of medical implants, [10] the biological corrosion of industrial equipments, [11] reducing various surface properties, such as petroleum and other pipelines systems, clothes, and other harmful phenomena. [12] Currently, antibiotics are mainly used to inhibit or kill bacteria to maintain surface hygiene and prevent infections. However, as bacteria develop resistance to antibiotics, it is suggested that antibiotics should be much more cautiously used. It is estimated that antimicrobial resistance infections will kill as many as 10 million people every year by 2050. [13] Antimicrobial resistance is now an urgent international issue that requires imperative solutions, more effective antibacterial techniques are needed to fight bacterial infections. Inspired by the superwetting properties of plants and marine life, Li et al. [14] reviewed the research progresses of the preparation of superwetting materials including of superhydrophobic/superoleophilic and superhydrophilic/underwater superoleophobic materials and their applications for removal of organic pollutants, which provided a basis for the design of a new type of superwetting materials that efficiently remove organic pollutants in the water. Similarly, Tian et al. [15] developed a superwetting thin-film nanofibrous composite membrane with antifouling, self-cleaning, and oil-in-water emulsions separation properties. The as-prepared carbon nanotubes (CNTs) layer with superhydrophilic and underwater superoleophobic properties could absorb water as a selective layer to remove oil droplets from oil-in-water emulsions to present antifouling. The self-cleaning properties were promised by the continuously up-flowed permeate water. They claimed that the work provided a new insight for developing oil/water separation membranes which suffer from fouling and clogging. Also, Li et al. [16] summarized the recent progresses in smart polymeric materials for fabricating switchable superwettability surfaces and their oi...

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Titanium implant surface modification by cathodic reduction in hydrofluoric acid: Surface characterization and in vivo performance

Cited by 112 publications

References 54 publications

Characterisation of Titanium Dental Implants. II: Local Biomechanical Model~!2009-09-02~!2009-11-20~!2010-04-28~!

Characterisation of Titanium Dental Implants. II: Local Biomechanical Model~!2009-09-02~!2009-11-20~!2010-04-28~!

Reality of Dental Implant Surface Modification: A Short Literature Review

Recent Advances in Antibacterial Superhydrophobic Coatings

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