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Poster Presentation

Mechanical properties of recent CAD/CAM polymer materials

Part of:
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- Poster Presentation PLA based CaCO3 composite fibers for textile scaffolds in hard tissue regeneration 1 Dr.-Ing. Claudia Hinüber
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- 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
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- 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
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- Poster Presentation New crosslinking diluents for dental materials 1 Prof. Dr. Norbert Moszner
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- 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: Computerized manufacturing of dental restorations by CAD/CAM technology is widely acknowledged due to its time and cost-efficiency. Additionally, high esthetic outcome is important for patients’ satisfaction. For long-term performance, the mechanical properties should be in the range of established materials.

The aim of this work is to compare the mechanical properties of one recent developed CAD/CAM polymer material to five established polymer materials.

Material and Methods: Six different CAD/CAM materials were used (Grandio bloc (GB), VOCO; Lava Ultimate (UL), 3M ESPE; Cerasmart (CE), GC Europe; Enamic (EN), Vita Zahnfabrik; Ambarino high class (AM), Creamed; Brilliant Crios (BC), Coltene).

Mechanical properties were determined using a universal testing machine according to ISO 6872 as follows:

• Flexural strength; the samples were tested in dry condition (n=5) and wet condition after storing in distilled water for 24 h at 37°C(n=5)

• Flexural modulus; the samples were tested in dry condition (n=5) and wet condition (n=5). Mean values were statistically evaluated on a p=0.05 level (ANOVA,Scheffe post hoc test).

Results: The detailed results are shown in Table 1.

For flexural strength, the results were in range of 141.88 ± 13.70 MPa to 297.95 MPa ± 6.79 MPa in dry condition and 117.30 ± 40.40 MPa to 287.18 ± 4.41 MPa in wet conditions, respectively. GB showed significantly the highest strength.

For flexural modulus, the results were in range of 9.88 ± 1.58 MPa to 25.85 ± 2.43 MPa in dry condition and 6.70 ± 1.54 MPa to 24.80 ± 4.15 MPa in wet conditions, respectively. EN showed significantly the highest modulus.

Conclusion: The newly developed CAD/CAM polymer material (GB) showed preferable results and seems to be a promising material for definitive restorations. These in vitro results are comparable to established polymers on the market.


Sebastian Spintzyk
University Hospital Tübingen
Additional Authors:
  • Dr. Tomofumi Sawada
    University Hospital Tübingen
  • Chang Lyu
    University Hospital Tübingen
  • Daniel Oldenburger
    VOCO GmbH
  • Prof. Dr. Jürgen Geis-Gerstorfer
    University Hospital Tübingen