Comparison of the Compression and Tensile Modulus of Two Chosen Resins Used in Dentistry for 3D Printing

Abstract

(1) The CAD/CAM technique exploiting 3D printing is becoming more and more popular in dentistry. The resins are used in all the dental specialties, including conservative dentistry, prosthodontics, surgery, and orthodontics. The interest in investigating the different properties of dental materials has been an aim of researchers. The purpose of the presented study was to compare the properties of two 3D-printable dental resins (both rigid, used for medical purposes). (2) Methods: Ten blocks of two-type shapes were printed on a printer designed for medical use. The tensile modulus and compression were investigated and compared. The axial compression test was performed according to the PN-EN ISO 604:2003 norm, while the tensile test was performed according to the PN-En ISO 527-1-2019 (E) norm. In the first test, the sample size of the perpendicular shape was 10 ± 0.2 mm × 10 ± 0.2 mm × 4 ± 0.2 mm and in the second it was 75 mm, the end width 10 mm, and the thickness 2 mm. (3) Results: The statistical analysis based on ANOVA tests showed that all the obtained results were statistically significant. Both of the examined materials had similar properties and were resistant and stable in shape. The tensile modulus and compression tests performed on them gave similar results. They also showed high durability to compression and tensility. (4) Conclusions: Both of the examined materials were durable and rigid materials. BioMed Amber was more resistant to compression, while Dental LT clear was more resistant in the tensility test. Although both resins had similar physical properties, it is still disputable whether the chosen materials could be used interchangeably.

Translucency of CAD/CAM and 3D Printable Composite Materials for Permanent Dental Restorations

“…Using 3DP materials for permanent restoration is an innovative field in the dental materials technology; therefore, future studies are advisable, e.g., to correlate the findings of the present study with color stability [ 41 ] of CAD/CAM and printing materials. As well, mechanical properties such as compression modulus, tensile modulus, microhardness needs to be investigated to compare 3DP materials with CAD/CAM resin composite materials [ 42 ]. Furthermore, studies involving more clinical procedures such as finishing and polishing, cementation and fatiguing shall be performed with fractographic and fractal dimension analyses, to compare CAD/CAM and printable materials, as previously reported [ 43 ].…”

Comparison of Two Chosen 3D Printing Resins Designed for Orthodontic Use: An In Vitro Study

“…Investigation of the other properties of this resin would be a valuable approach to indicate its other potential uses. The comparison of the BioMed Amber resin with other type of 3D-printed resin, in the authors’ previous study, revealed that the former is more resistant to compression than tension, as compared to another rigid resin, Dental Clear LT [ 27 ]. As the Biomed Amber resin could be used for surgical mini-implant placement, it could also be used in the preparation of hybrid hyrax expander placement.…”

Evaluation of Mechanical Properties of 3D-Printed Polymeric Materials for Possible Application in Mouthguards

“…Additionally, McNair et al [ 54 ] used the ASTM D624-00 standard in their research. Paradowska-Stolarz et al [ 20 ] conducted research comparing the compression and tensile modulus of two rigid resins used in 3D-printing using PN-EN ISO 604:2003 norm for axial compression test and PN-EN ISO 527-1-2019 for tensile test. The median tensile strength of the evaluated materials was between 2.17 ± 0.37 MPa for Formabs to 4.72 ± 0.47 MPa for Imprimo.…”

“…Samples for sorption and solubility were prepared according to the ASTM D570 standard, which were cylindrical, with a diameter of 60 mm and a thickness of 3 mm. The number of samples prepared for tests was based on previously published studies [ 20 , 44 , 45 , 46 , 47 ].…”

“…Digital techniques change the possibilities of the stomatognatic system rehabilitation [ 20 , 21 ]. The use of 3D-printing in mouthguard manufacturing could make it possible to design a single protective splint, which can be printed and duplicated while maintaining its dimensions [ 22 ].…”