Monomer release from surgical guide resins manufactured with different 3D printing devices was written by Kessler, Andreas;Reichl, Franz-Xaver;Folwaczny, Matthias;Hoegg, Christof. And the article was included in Dental Materials in 2020.Application In Synthesis of Dicyclohexyl phthalate This article mentions the following:
The aim of this study was to assess the post curing monomer release of resins applicable for 3D printing of surgical implant guides in dependency of printing technique and storing media using high performance liquidchromatog.Specimens of Nextdent SG, Freeprint Splint. The highest eluted concentration for MMA in methanol was 20.27 ± 8.60μg/mL followed by 12.66 ± 3.38μg/mL of HPMA. HEMA was found at concentration of 11.17 ± 2.43μg/mL in methanol and 1.15 ± 0.11μg/mL in water. TPGDA and TEGDMA reached maximum concentration in methanol of 4.29 ± 0.54μg/mL and 5.07 ± 0.93μg/mL and in water of 0.79 ± 0.19μg/mL and 0.36 ± 0.14μg/mL, resp. Significant difference was found for the material Nextdent SG manufactured on SLA and DLP printing device for THFMA (p = 0.041), TEGDMA (p = 0.026), TPGDA (p = 0.05) and EGDMA (p = 0.06). The amount of monomers released into water did not reach the detection threshold for V-print SG.The study revealed significant influence of the printing technique and resin material on the elution of monomers. The elution in methanol and water was significantly different. While the relative amount of eluted monomers from 3D printed guides is comparable to conventional direct composites and below toxic relevant concentrations, the absolute amount of monomer can rise in a clinic situation due to the size of the guides. In the experiment, the researchers used many compounds, for example, Dicyclohexyl phthalate (cas: 84-61-7Application In Synthesis of Dicyclohexyl phthalate).
Dicyclohexyl phthalate (cas: 84-61-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Application In Synthesis of Dicyclohexyl phthalate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics