Coelho Sabrina R G, da Silva Marcela D D, Nunes Thais S B S, Viotto Hamile E C, Marin Danny O M, Pero Ana C
Department of Dental Materials and Prosthodontics, Araraquara Dental School, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brazil.
Department of Dentistry, Federal University of Santa Catarina - UFSC, Florianópolis, Santa Catarina, Brazil.
J Prosthodont. 2024 Feb;33(2):157-163. doi: 10.1111/jopr.13663. Epub 2023 Feb 24.
To evaluate the effect of immersion in disinfecting solutions on the color stability of denture base resins and artificial teeth obtained by 3D printing.
Forty discs (15 × 3 mm) were obtained for each group: Lucitone 550 and Cosmos Denture 3D (denture base resins), Duralay and Cosmos TEMP 3D (artificial teeth resins). The discs were immersed in disinfectant solutions: Corega Tabs, 2% chlorhexidine digluconate, 0.25% sodium hypochlorite, and distilled water. Color measurements were obtained with a spectrophotometer before immersion in disinfectants and after the simulated periods of 6 and 12 months. Data (ΔE ) were submitted to mixed three-way ANOVA and Bonferroni post-test.
For denture base resins, Cosmos Denture 3D showed greater color change regardless of the solution and immersion time. The immersion time of 6 months influenced the color change of the denture base resins regardless of the disinfectant solution. For the artificial teeth resins, the immersion time of 12 months showed a significant color change when compared to 6 months. Cosmos TEMP 3D showed greater color change for all solutions, except for 0.25% sodium hypochlorite. Duralay resin showed greater color change in 2% chlorhexidine, regardless of immersion time.
For denture base resins, the immersion time significantly changed the color regardless of the solution. For artificial teeth resins, Cosmos TEMP 3D showed greater color changes in all solutions when compared to Duralay, except for 0.25% sodium hypochlorite. Chlorhexidine digluconate significantly changed the color of Duralay.
评估浸泡在消毒溶液中对通过3D打印获得的义齿基托树脂和人工牙颜色稳定性的影响。
每组制备40个圆盘（15×3mm）：Lucitone 550和Cosmos Denture 3D（义齿基托树脂）、Duralay和Cosmos TEMP 3D（人工牙树脂）。将圆盘浸泡在消毒溶液中：Corega Tabs、2%葡萄糖酸氯己定、0.25%次氯酸钠和蒸馏水。在浸泡于消毒剂之前以及模拟6个月和12个月后，用分光光度计进行颜色测量。数据（ΔE）进行混合三因素方差分析和Bonferroni事后检验。
对于义齿基托树脂，无论溶液和浸泡时间如何，Cosmos Denture 3D的颜色变化更大。6个月的浸泡时间影响义齿基托树脂的颜色变化，与消毒剂溶液无关。对于人工牙树脂，与6个月相比，12个月的浸泡时间显示出显著的颜色变化。除0.25%次氯酸钠外，Cosmos TEMP 3D在所有溶液中的颜色变化更大。无论浸泡时间如何，Duralay树脂在2%葡萄糖酸氯己定中的颜色变化更大。
对于义齿基托树脂，浸泡时间显著改变颜色，与溶液无关。对于人工牙树脂，与Duralay相比，除0.25%次氯酸钠外，Cosmos TEMP 3D在所有溶液中的颜色变化更大。葡萄糖酸氯己定显著改变了Duralay的颜色。
