Resin adjustment of three-dimensional printed thermoset occlusal splints: Bonding properties - Short communication

Leila Perea-Lowery; Pekka K Vallittu

doi:10.1016/j.jmbbm.2019.04.011

Resin adjustment of three-dimensional printed thermoset occlusal splints: Bonding properties - Short communication

J Mech Behav Biomed Mater. 2019 Jul:95:215-219. doi: 10.1016/j.jmbbm.2019.04.011. Epub 2019 Apr 17.

Authors

Leila Perea-Lowery¹, Pekka K Vallittu²

Affiliations

¹ Department of Biomaterials Science and Turku Clinical Biomaterials Centre - TCBC, Institute of Dentistry, University of Turku, Finland, Itäinen Pitkäkatu 4 B (2nd floor), Turku, FI-20520, Finland. Electronic address: leila.perea@utu.fi.
² Department of Biomaterials Science and Turku Clinical Biomaterials Centre - TCBC, Institute of Dentistry, University of Turku and City of Turku Welfare Division, Oral Health Care, Finland, Lemminkäisenkatu 2, Turku, FI-20520, Finland.

PMID: 31015140
DOI: 10.1016/j.jmbbm.2019.04.011

Abstract

Objectives: To evaluate the interfacial adhesion of an autopolymerizing acrylic resin to 3D printed thermoset occlusal splints compared to thermoplastic occlusal splints.

Materials and methods: Cylinders made of an autopolymerizing acrylic resin were adhered to 3D printed thermoset and also to thermoplastic plates. A different surface treatment and three storage conditions were used: dry, 7 days water-storage and 14 days water-storage. Bond strength test (so-called shear-bond strength test) was afterward performed.

Results: ANOVA (R2 = 0.764) revealed significant differences in bond strength according to material (p < 0.001) and storage (p < 0.001) but not for surface treatment (p = 0.202).

Conclusions: The bond strength of autopolymerizing acrylic resin to 3D printed thermoset plates is higher when compared to thermoplastic plates. Bonding between acrylic resin and 3D printed splints was high enough for clinical applications.conclusion CLINICAL RELEVANCE: The bond strength values obtained in this study with 3D printed plates were at the level of generally accepted adequate bonding values for prosthetic materials.

Keywords: 3D-printed splint; Bond strength; CAD/CAM; PMMA; Thermoplastic foil; Thermoset occlusal splint.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Mechanical Phenomena
Polymerization
Printing, Three-Dimensional*
Resins, Synthetic / chemistry*
Temperature

Substances

Resins, Synthetic