The Impact of Force Transmission on Narrow-Body Dental Implants Made of Commercially Pure Titanium and Titanium Zirconia Alloy with a Conical Implant-Abutment Connection: An Experimental Pilot Study

2016 ◽  
pp. 1066-1071 ◽  
Author(s):  
Katja Nelson ◽  
Rainer Schmelzeisen ◽  
Thomas Taylor ◽  
Simon Zabler ◽  
Wolfram Wiest
Keyword(s):  
Pilot Study ◽  
Dental Implants ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Force Transmission ◽  
Commercially Pure ◽  
Implant Abutment ◽  
The Impact

scholarly journals The Effects Of Friction On Stamping Process Of Sheet Metals Used In Aviation

2015 ◽  
Vol 60 (3) ◽  
pp. 1895-1900 ◽  
Author(s):  
K. Dyja ◽  
W. Więckowski
Keyword(s):  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Spherical Cap ◽  
Drawing Test ◽  
Commercially Pure ◽  
Stamping Process ◽  
Strip Drawing ◽  
Titanium Grade ◽  
The Impact ◽  
Lubrication Conditions

Abstract An important factor in the possibility of obtaining correct drawn parts with the desired functional properties is the friction between the stamped sheet and the tool. The article discusses the impact of technological lubricants developed according to our own formulas, based on vegetable oils, on the stamping process taking into account the strain distributions in the drawn parts. Biodegradable lubricants based on rapeseed oil with an addition of stearic acid or boric acid were used. The results of the friction coefficient in a strip drawing test and the numerical analysis results of the stamping process of a spherical cap from sheet metal: aluminium 2024, commercially pure titanium Grade 2, steel 5604 in dry friction and lubrication conditions, are presented. Strain distributions and changes in the drawn part wall thickness were analysed.

Possibilities of biocompatible material production using conform SPD technology

2017 ◽  
Vol 1 (88) ◽  
pp. 5-11 ◽  
Author(s):  
J. Palán ◽  
L. Maleček ◽  
J. Hodek ◽  
M. Zemko ◽  
J. Dzugan
Keyword(s):  
Mechanical Properties ◽  
Dental Implants ◽  
Nanostructured Materials ◽  
Continuous Production ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Ultrafine Grained ◽  
Materials Research ◽  
Titanium Grade

Purpose: At present, materials research in the area of SPD (severe plastic deformation) processes is very intensive. Materials processed by these techniques show better mechanical properties and have finer grain when compared to the input feedstock. The refined microstructure may be ultrafine-grained or nanostructured, where the grain size becomes less than 100 nm. One of the materials used for such processes is CP (commercially pure) titanium of various grades, which is widely used for manufacturing dental implants. The article deals with one of the technologies available for the production of ultrafine-grained titanium: Conform technology. CP titanium processed by CONFORM technology exhibits improved mechanical properties and very favourable biocompatibility, due to its fine-grained structure. The article presents the current experience in the production of ultrafine CP titanium using this technology. The main objective of this article is describing the behaviour of CP titanium during forming in the Conform device and its subsequent use in dental implantology. Design/methodology/approach: In the present study, commercially pure Grade 2 titanium was processed using the CONFORM machine. The numerical simulation of the process was done using FEM method with DEFORMTM software. The evaluation was performed by simple tensile testing and transmission electron microscopy. The first conclusions were derived from the determined mechanical properties and based on analogies in available publications on a similar topic. Findings: This study confirmed that the SPD process improves mechanical properties and does not impair the ductility of the material. The CONFORM process enables the continuous production of ultrafine-grained or nanostructured materials. Research limitations/implications: At the present work, the results show the possible way of continuous production of ultrafine-grained or nanostructured materials. Nevertheless, the further optimization is needed in order to improve the final quality of wires and stabilize the process. As these factors will be solved, the technology will be ready for the industry. Practical implications: The article gives the practical information about the continuous production of ultrafine-grained pure titanium Grade 2 and the possibility of use this material for dental implants. Originality/value: The present paper gives information about the influence of the CONFORM technology on final mechanical and structural properties with the emphasis on technological aspects

scholarly journals Titanium Alloys for Dental Implants: A Review

Prosthesis ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 100-116 ◽  
Author(s):  
John W. Nicholson
Keyword(s):  
Titanium Alloys ◽  
Dental Implants ◽  
Clinical Success ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Foreseeable Future ◽  
Success Rates ◽  
Commercially Pure

The topic of titanium alloys for dental implants has been reviewed. The basis of the review was a search using PubMed, with the large number of references identified being reduced to a manageable number by concentrating on more recent articles and reports of biocompatibility and of implant durability. Implants made mainly from titanium have been used for the fabrication of dental implants since around 1981. The main alloys are so-called commercially pure titanium (cpTi) and Ti-6Al-4V, both of which give clinical success rates of up to 99% at 10 years. Both alloys are biocompatible in contact with bone and the gingival tissues, and are capable of undergoing osseointegration. Investigations of novel titanium alloys developed for orthopaedics show that they offer few advantages as dental implants. The main findings of this review are that the alloys cpTi and Ti-6Al-4V are highly satisfactory materials, and that there is little scope for improvement as far as dentistry is concerned. The conclusion is that these materials will continue to be used for dental implants well into the foreseeable future.

scholarly journals Impact of rolling conditions on the hydriding of grade 2 titanium welded tubes

2020 ◽  
Vol 321 ◽  
pp. 09005
Author(s):  
La Chance LEPEMANGOYE ◽  
Nicolas CRETON ◽  
Virgil OPTASANU ◽  
Elise DELOYE ◽  
Tony MONTESIN ◽  
...  
Keyword(s):  
Cold Rolling ◽  
Crystallographic Texture ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Asymmetrical Rolling ◽  
Commercially Pure ◽  
Pole Figures ◽  
Cold Rolled ◽  
Titanium Grade ◽  
The Impact

In this article, we study the impact of rolling conditions on the texture of the commercially pure titanium grade 2. In a previous work, NEOTISS in collaboration with ICB laboratory, shown that the texture highly influences the precipitation of hydrides in Titanium. In order to create different textures, Titanium sheets grade 2 are cold rolled asymmetrically and symmetrically with or without lubricant. The inverse pole figures and direct pole figures obtained allow us to deduce that symmetrical cold rolling does not change the grains orientation but generates a rotation of grains along c-axis (normal to basal plan). However, asymmetrical cold rolling leads to the formation of a new crystallographic texture, which could limit the formation of the hydrides in titanium grade 2 submitted to a hydrogen-rich environment. Key words: asymmetrical rolling, symmetrical rolling, titanium, hydriding, texture

scholarly journals Effect of oxygen contents on strain rate sensitivity of commercially pure titanium

2020 ◽  
Vol 321 ◽  
pp. 04009
Author(s):  
Min-Su Lee ◽  
Yong-Taek Hyun ◽  
Tea-Sung Jun
Keyword(s):  
Strain Rate ◽  
Grain Orientation ◽  
Pure Titanium ◽  
Constant Strain Rate ◽  
Nanoindentation Test ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Effect Of Oxygen ◽  
Cp Ti ◽  
The Impact

In this study, we have investigated the effect of oxygen contents on strain rate senstivitiy (SRS) within Gr. 1 and 4 commercially pure titanium (CP-Ti). The SRS was evaluated in multi-scales using macro-scopic tensile test with constant strain rate (CSR) method and strain rate jump (SRJ) method, and nanoindentation test with SRJ method. Electron backscatter diffraction (EBSD) has been used to characterise crystallographic texture and individual grain orientation of samples. Slip and twin activities of each CP-Ti were compared by EBSD measurements and the associated Schmid factor (SF) analysis. The active slip system is anticipated to be different in each relation between loading directions and textures, but twin activity is much similar. The texture dependent global SRS is thus thought to be resulted from the different slip activity. Local SRS was dependent not only on the grain orientation but also on the oxygen contents, leading to the fact that the impact of oxygen contents is closely correlated in macro- and micro-scopic level.

Sign in / Sign up

Export Citation Format

Share Document