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Poster Presentation

Mechanical properties of biocompatible polymer-based resin for dental applications fabricated by stereolithography

Sunday (01.01.2040)
00:00 - 08:21
Part of:
Line-Up:
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- Poster Presentation PLA based CaCO3 composite fibers for textile scaffolds in hard tissue regeneration 1 Dr.-Ing. Claudia Hinüber
- Poster Presentation Functionalization of polymer fibers with heparan sulfate as a representative of the extracellular matrix 1 Inga Wille
- Poster Presentation Development and Characterization of Hybrid Hydrogel Based on Oxidized Alginate and Keratin for Tissue Engineering Applications 0 Supachai Reakasame
- Poster Presentation Nir Laser-responsive Folate-targeted Gold Nanorods As Efficient theranostic tool for Osteosarcoma Treatment 1 Ph.D. Nicol? Mauro
- Poster Presentation Mechanical properties of recent CAD/CAM polymer materials 1 Sebastian Spintzyk
- Poster Presentation Multilayers of Nanoparticles with Alginate, Chondroitin sulfate and Hyaluronic acid for graded implants 1 Steffen Sydow
- Poster Presentation Design of drug eluting ophthalmic lenses through a multi-layer approach 1 Dr. Ana Topete
- Poster Presentation Drug loaded silicon based soft contact lenses: effect of terminal sterilization methods on their performance 1 Andreia Sofia Oliveira
- Poster Presentation Investigating the compressibility of spray dried alumina-zirconia granules for use in orthopaedics - an easy to use and fast method 1 Dr. Ranko Adjiski
- Poster Presentation Biochemical modification of extruded protein nanofibers 1 Karsten Stapelfeldt
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- Poster Presentation Effect of the pH of bleaching H2O2 solutions in the enamel morphology, hardness and color 1 Dr. Ana Topete
- Poster Presentation New crosslinking diluents for dental materials 1 Prof. Dr. Norbert Moszner
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- Poster Presentation Impact of chloride ions on apatite mineralisation on Bioglass® 45S5 0 Juliane Brandt-Slowik
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- Poster Presentation Adjusted material-cell interaction using engineered spider silk proteins 1 Vanessa Trossmann
- Poster Presentation Cellular interactions with extruded protein nanofibers 1 Naiana Suter
- Poster Presentation Antimicrobial efficacy of strontium and zinc glasses and glass ionomer cements against clinically relevant bacteria 0 Hawshan Mustafa
- Poster Presentation Mechanical properties of water-soluble polyvinyl alcohol parts fabricated by fused deposition modelling 1 Jochen Kuttig
- Poster Presentation Corrosion behavior of dental CoCr alloys made by different digital workflow processes compared to cast CoCr alloys 0 Christine Schille
- Poster Presentation Mechanical properties of biocompatible polymer-based resin for dental applications fabricated by stereolithography 1 Phan Hai-Binh Bui

Session P.2: Poster Session 2
Belongs to:
Topic P: Postersession


Objectives: Stereolithography (SLA) is based on spatial solidification of a liquid resin by photo-polymerization [1]. Due to its precision and surface smoothness, SLA is particularly suitable for printing maxillofacial models used in surgical planning or dental training [2].

Dental SG is a certified biocompatible Class 1 material [3] developed specifically for surgical guides in dentistry. Such 3D-printed guides may improve pre-operative planning, implant placement and patient comfort [4]. However, this newly developed resin and its usability in the medical field have yet to be researched thoroughly.


This work aims to determine mechanical properties of printed objects using Dental SG.


Materials and Methods: To evaluate isotropy in respect to print direction relative to the XY-plane, flexural strength and Young’s modulus are determined in a three-point flexural bending test based on DIN EN ISO 4049.

Three groups (n=10 for each) are printed with a layer height of 0.05 mm and dimensions of 5x5x30 mm. The first group is printed at an angle of 0° (horizontally), the second group at 45° and the third at 90° (vertically) relative to the XY plane.

Results: Mean ±SD flexural strength and Young’s modulus for vertically printed specimens are 135.69 (±5.93) MPa and 1456.73 (±149.83) MPa. Comparable with 130.73 (±5.12) MPa and 1467.56 (±89.36) MPa for specimens angled at 45°. The measured values for horizontal prints are 117.48 (±12.39) MPa and 1654.38 (±152.27) MPa. Means of the horizontal group are statistically different on a p=0.05 level (ANOVA, Post Hoc Tukey HSD) compared with the two other groups.

Conclusion: This study concludes that SLA prints using Dental SG are isotropic. Printing direction does not influence flexural strength and Young’s modulus. Due to SLA-printing characteristics, first layers are compressed, resulting in a lower height (mean 4.5 ±0.1 mm) of horizontal prints. Differing values are attributable to variances in height.

Speaker:
Phan Hai-Binh Bui
University Hospital Tübingen
Additional Authors:
  • Jochen Kuttig
    University Hospital Tübingen
  • Christine Schille
    University Hospital Tübingen
  • Dr. Joachim Polligkeit
    University Hospital Tübingen
  • Prof. Dr. Jürgen Geis-Gerstorfer
    University Hospital Tübingen
  • Sebastian Spintzyk
    University Hospital Tübingen