Direct Metal Laser Sintering Titanium Dental Implants: A Review of the Current Literature

Mangano, Francesco; Chambrone, Leandro; Noort, R. van; Miller, Cheryl A.; Hatton, Paul V.; Mangano, Carlo

doi:10.1155/2014/461534

Cited by 113 publications

(92 citation statements)

References 56 publications

(208 reference statements)

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“…For titanium implants, various methods are used to modify the surface roughness, including sandblasting, acid-etching, anodization, calcium-phosphate crystal deposition and chemical modification (1).…”

Section: Abstract In An Effort To Generate Titanium Surfaces For Impmentioning

confidence: 99%

Cytocompatibility of Direct Laser Interference-patterned Titanium Surfaces for Implants

Hartjen

Nada

Silva

et al. 2018

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Abstract. In an effort to generate titanium surfaces forimplants with improved osseointegration, we used direct laser interference patterning (DLIP) Improving the osseointegration of implants is a key issue in dental implantation and surface modification is a major strategy for enhancing the attachment, proliferation and differentiation of cells in contact with such implants.For titanium implants, various methods are used to modify the surface roughness, including sandblasting, acid-etching, anodization, calcium-phosphate crystal deposition and chemical modification (1).A recently developed technique for surface modification is direct laser interference patterning (DLIP) (2, 3). By overlapping two or more laser beams on a sample surface, periodic laser intensity distributions are obtained and used for laser ablation. DLIP is a very cost effective process for treating surfaces because it is possible to structure metals at high speeds of up to 0.39 m 2 /min (4). The structure periodicity can be controlled at the micrometer to submicrometer range and the surface roughness at the micrometer to nanometer level. Moreover, some chemical features can be modified, for example, the material's wetting properties (5).In the present study, we modified the surface of titanium of four different structures and assessed in vitro cytoxicity and cell attachment, as well as the viability and proliferation of cells cultured directly on the surfaces. Materials and MethodsTitanium specimens and reference materials. Line-like structures with spatial periods (p) of 3, 5, 10 and 20 μm were produced on pure titanium (grade IV) samples (Figure 1). All specimens were cylindrical with a diameter of 10 mm and thickness of 1.5 mm. Before and after laser treatment they were cleaned in pure ethanol (C 2 H 5 OH) using ultrasonic cleaning for 5 min each. As a reference surface, standard grit-blasted and etched samples (TiPure Plus; Bego Implant Systems, Bremen, Germany) were used. The surface characteristics of the DLIP-treated variants and TiPure Plus gritblasted and acid-etched reference material are shown in Table I.As a positive control for the in vitro cytocompatibility tests, RM-A, a polyurethane film sheet containing 0.1% zinc diethyldithio-carbamate (Hatano Research Institute, Hadano, Kanagawa, Japan) was used. As a negative control, Wako plastic sheets (cat. no. 160-08893; Wako Chemicals GmbH, Neuss, Germany) were used.

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Section: Abstract In An Effort To Generate Titanium Surfaces For Impmentioning

confidence: 99%

Cytocompatibility of Direct Laser Interference-patterned Titanium Surfaces for Implants

Hartjen

Nada

Silva

et al. 2018

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“…A new strategy for reducing stress shielding is to use porous metallic alloys because the introduction of porosity into titanium alloys may significantly decrease the Young modulus in relation with bulk material [39,40]. Bandyopadhyay et al [41] using the laser engineered net shaping, a similar technique to DMLS, obtained porous specimens with a porosity ranging about 23-32% with E comprised between 7 and 60 GPa.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Functionalization of Ti6Al4V scaffolds produced by direct metal laser for biomedical applications

et al. 2015

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“…Implant morphology has a crucial role in bone-implant contact and can enhance the osseointegration process. To improve dental implant stability different surface modifications have been proposed to adapt the properties of titanium dental implants [12]. Modifying the implant surface can improve the implant to bone interaction, however, there is not always a clear explanation for the mechanism of improvement.…”

Section: Introductionmentioning

confidence: 99%

Porous Titanium for Dental Implant Applications

Wally

Grunsven

Claeyssens

et al. 2015

Metals

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Abstract:Recently, an increasing amount of research has focused on the biological and mechanical behavior of highly porous structures of metallic biomaterials, as implant materials for dental implants. Particularly, pure titanium and its alloys are typically used due to their outstanding mechanical and biological properties. However, these materials have high stiffness (Young's modulus) in comparison to that of the host bone, which necessitates careful implant design to ensure appropriate distribution of stresses to the adjoining bone, to avoid stress-shielding or overloading, both of which lead to bone resorption. Additionally, many coating and roughening techniques are used to improve cell and bone-bonding to the implant surface. To date, several studies have revealed that porous geometry may be a promising alternative to bulk structures for dental implant applications. This review aims to summarize the evidence in the literature for the importance of porosity in the integration of dental implants with bone tissue and the different fabrication methods currently being investigated. In particular, additive manufacturing shows promise as a technique to control pore size and shape for optimum biological properties. OPEN ACCESSMetals 2015, 5 1903

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Direct Metal Laser Sintering Titanium Dental Implants: A Review of the Current Literature

Cited by 113 publications

References 56 publications

Cytocompatibility of Direct Laser Interference-patterned Titanium Surfaces for Implants

Cytocompatibility of Direct Laser Interference-patterned Titanium Surfaces for Implants

Functionalization of Ti6Al4V scaffolds produced by direct metal laser for biomedical applications

Porous Titanium for Dental Implant Applications

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