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Coating of Additive Manufactured Dental Suprastructures and its Interaction with Veneering Resin

Rex, Alexander LU (2016) KOO920 20161
Centre for Analysis and Synthesis
Abstract
This study has investigated the possibilities of coating additive manufactured titanium dental prosthesis structures. Different coating alternatives were evaluated with the regards of esthetics, function and implementation possibilities. The coatings were applied on test samples and the adhesion between the printed titanium structures and the coating as well as to resin veneering applied on top was tested. The coating methods that were evaluated were anodization, plasma electrolytic oxidation, physical vapor deposition, sol-gel as well as a conventional opaque resin coating.
A so called Charpy test was conducted to evaluate if the different coatings affected the material strength, however the method proved unsatisfactory to study any... (More)
This study has investigated the possibilities of coating additive manufactured titanium dental prosthesis structures. Different coating alternatives were evaluated with the regards of esthetics, function and implementation possibilities. The coatings were applied on test samples and the adhesion between the printed titanium structures and the coating as well as to resin veneering applied on top was tested. The coating methods that were evaluated were anodization, plasma electrolytic oxidation, physical vapor deposition, sol-gel as well as a conventional opaque resin coating.
A so called Charpy test was conducted to evaluate if the different coatings affected the material strength, however the method proved unsatisfactory to study any differences caused by the coatings. The surface roughness was also tested for coated and non-coated samples. The possibility of implementing the coating at Dentsply were investigated by evaluating economic and technical aspects of the different coating methods. The shear bond test showed that the conventional method of opaque manual coating resulted in the highest bond strength, with anodization and plasma electrolytic oxidation being the second best.
This study concluded that producing a large scale automated industrial method for coating titanium prosthetics before resin veneering poses several challenges. Although this thesis has put ground work into screening different available coatings, more development is needed in order to present an implementable solution. (Less)
Popular Abstract
Coating of 3D Printed Titanium Prosthesis
You might not have thought a lot about how dental prostheses are created, but once you need it certainly you would like one with the best possible quality and price! This thesis has investigated how to improve a coating process of these prostheses.
This research has been about creating an improved coating for 3D printed dental titanium prostheses. The modern 3D printing process used to create these prostheses creates new possibilities for the manufacturer but also new challenges. This master’s thesis project was done in Belgium at a dental company called Dentsply Implants, giving access to valuable insight both in the process and product during the time there!
The goal was to create a coating... (More)
Coating of 3D Printed Titanium Prosthesis
You might not have thought a lot about how dental prostheses are created, but once you need it certainly you would like one with the best possible quality and price! This thesis has investigated how to improve a coating process of these prostheses.
This research has been about creating an improved coating for 3D printed dental titanium prostheses. The modern 3D printing process used to create these prostheses creates new possibilities for the manufacturer but also new challenges. This master’s thesis project was done in Belgium at a dental company called Dentsply Implants, giving access to valuable insight both in the process and product during the time there!
The goal was to create a coating that was more efficient to produce whilst also being as functional as the one used today. The purpose of the coating is to achieve a good color and to help bonding between the titanium prosthesis and a top layer called resin that is applied in order for the prostheses to look like teeth and gum. This task proved quite a challenge since each prosthesis is unique and has a very complex geometry.
Four different coatings were chosen to try out. For all of these the bonding was tested between the titanium and the resin as well as for the coating used in the process today. Possibilities to use these coatings in the process were also studied and calculations on the cost of implementing these coatings were also done.
The results showed that the coating used today was still optimal when looking at the test results, and thus it was concluded that further development would be needed in order to improve the coating of the 3D printed tooth prostheses. To summarize this work can be used as a base to further develop dental prosthesis coatings, to improve efficiency and standards for these products. (Less)
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author
Rex, Alexander LU
supervisor
organization
course
KOO920 20161
year
type
H2 - Master's Degree (Two Years)
subject
keywords
materials chemistry, materialkemi
language
English
id
8894627
date added to LUP
2016-11-22 14:23:07
date last changed
2016-11-22 14:23:07
@misc{8894627,
  abstract     = {This study has investigated the possibilities of coating additive manufactured titanium dental prosthesis structures. Different coating alternatives were evaluated with the regards of esthetics, function and implementation possibilities. The coatings were applied on test samples and the adhesion between the printed titanium structures and the coating as well as to resin veneering applied on top was tested. The coating methods that were evaluated were anodization, plasma electrolytic oxidation, physical vapor deposition, sol-gel as well as a conventional opaque resin coating. 
A so called Charpy test was conducted to evaluate if the different coatings affected the material strength, however the method proved unsatisfactory to study any differences caused by the coatings. The surface roughness was also tested for coated and non-coated samples. The possibility of implementing the coating at Dentsply were investigated by evaluating economic and technical aspects of the different coating methods. The shear bond test showed that the conventional method of opaque manual coating resulted in the highest bond strength, with anodization and plasma electrolytic oxidation being the second best.
This study concluded that producing a large scale automated industrial method for coating titanium prosthetics before resin veneering poses several challenges. Although this thesis has put ground work into screening different available coatings, more development is needed in order to present an implementable solution.},
  author       = {Rex, Alexander},
  keyword      = {materials chemistry,materialkemi},
  language     = {eng},
  note         = {Student Paper},
  title        = {Coating of Additive Manufactured Dental Suprastructures and its Interaction with Veneering Resin},
  year         = {2016},
}