Direct laser metal sintering as a new approach to fabrication of an isoelastic functionally graded material for manufacture of porous titanium dental implants

T Traini; C Mangano; Rachel Sammons; F Mangano; A Macchi; A Piatelli

doi:10.1016/j.dental.2008.03.029

Direct laser metal sintering as a new approach to fabrication of an isoelastic functionally graded material for manufacture of porous titanium dental implants

T Traini, C Mangano, Rachel Sammons, F Mangano, A Macchi, A Piatelli

Dentistry

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301 Citations (Scopus)

Abstract

OBJECTIVES: This work focuses on a titanium alloy implants incorporating a gradient of porosity, from the inner core to the outer surface, obtained by laser sintering of metal powder. Surface appearance, microstructure, composition, mechanical properties and fractography were evaluated. METHODS: All the specimens were prepared by a selective laser sintering procedure using a Ti-6Al-4V alloy powder with a particle size of 1-10mum. The morphological and chemical analyses were performed by SEM and energy dispersive X-ray spectroscopy. The flexure strength was determined by a three-point bend test using a universal testing machine. The surface roughness was investigated using a confocal scanning laser microscope. The surface roughness variation was statistically evaluated by use of a Chi square test. A p value of

Original language	English
Journal	Dental Materials
DOIs	https://doi.org/10.1016/j.dental.2008.03.029
Publication status	Published - 27 May 2008

Keywords

Titanium alloy
Metallography
Rapid prototyping
Surface roughness
Laser manufacturing
Mechanical properties

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10.1016/j.dental.2008.03.029

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title = "Direct laser metal sintering as a new approach to fabrication of an isoelastic functionally graded material for manufacture of porous titanium dental implants",

abstract = "OBJECTIVES: This work focuses on a titanium alloy implants incorporating a gradient of porosity, from the inner core to the outer surface, obtained by laser sintering of metal powder. Surface appearance, microstructure, composition, mechanical properties and fractography were evaluated. METHODS: All the specimens were prepared by a selective laser sintering procedure using a Ti-6Al-4V alloy powder with a particle size of 1-10mum. The morphological and chemical analyses were performed by SEM and energy dispersive X-ray spectroscopy. The flexure strength was determined by a three-point bend test using a universal testing machine. The surface roughness was investigated using a confocal scanning laser microscope. The surface roughness variation was statistically evaluated by use of a Chi square test. A p value of ",

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author = "T Traini and C Mangano and Rachel Sammons and F Mangano and A Macchi and A Piatelli",

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T1 - Direct laser metal sintering as a new approach to fabrication of an isoelastic functionally graded material for manufacture of porous titanium dental implants

AU - Traini, T

AU - Mangano, C

AU - Sammons, Rachel

AU - Mangano, F

AU - Macchi, A

AU - Piatelli, A

PY - 2008/5/27

Y1 - 2008/5/27

N2 - OBJECTIVES: This work focuses on a titanium alloy implants incorporating a gradient of porosity, from the inner core to the outer surface, obtained by laser sintering of metal powder. Surface appearance, microstructure, composition, mechanical properties and fractography were evaluated. METHODS: All the specimens were prepared by a selective laser sintering procedure using a Ti-6Al-4V alloy powder with a particle size of 1-10mum. The morphological and chemical analyses were performed by SEM and energy dispersive X-ray spectroscopy. The flexure strength was determined by a three-point bend test using a universal testing machine. The surface roughness was investigated using a confocal scanning laser microscope. The surface roughness variation was statistically evaluated by use of a Chi square test. A p value of

AB - OBJECTIVES: This work focuses on a titanium alloy implants incorporating a gradient of porosity, from the inner core to the outer surface, obtained by laser sintering of metal powder. Surface appearance, microstructure, composition, mechanical properties and fractography were evaluated. METHODS: All the specimens were prepared by a selective laser sintering procedure using a Ti-6Al-4V alloy powder with a particle size of 1-10mum. The morphological and chemical analyses were performed by SEM and energy dispersive X-ray spectroscopy. The flexure strength was determined by a three-point bend test using a universal testing machine. The surface roughness was investigated using a confocal scanning laser microscope. The surface roughness variation was statistically evaluated by use of a Chi square test. A p value of

KW - Titanium alloy

KW - Metallography

KW - Rapid prototyping

KW - Surface roughness

KW - Laser manufacturing

KW - Mechanical properties

U2 - 10.1016/j.dental.2008.03.029

DO - 10.1016/j.dental.2008.03.029

M3 - Article

C2 - 18502498

SN - 1879-0097

JO - Dental Materials

JF - Dental Materials

ER -

Direct laser metal sintering as a new approach to fabrication of an isoelastic functionally graded material for manufacture of porous titanium dental implants

Abstract

Keywords

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