Leandro Edgar Pacheco, Fernanda Balestrero Cassiano, Vitor de Toledo Stuani, Isabela Sanches Pompeo da Silva, Larissa Alamo, Matheus de Castro Costa, Marcella Fernandes Lovison, Sergio Kyioshi Ishikiriama, Rafael Francisco Lia Mondelli, Diana Gabriela Soares
{"title":"用于临时修复的3d打印树脂的特性:打印和后固化协议的影响。","authors":"Leandro Edgar Pacheco, Fernanda Balestrero Cassiano, Vitor de Toledo Stuani, Isabela Sanches Pompeo da Silva, Larissa Alamo, Matheus de Castro Costa, Marcella Fernandes Lovison, Sergio Kyioshi Ishikiriama, Rafael Francisco Lia Mondelli, Diana Gabriela Soares","doi":"10.1590/1807-3107bor-2025.vol39.019","DOIUrl":null,"url":null,"abstract":"<p><p>This study analyzed the properties of three-dimensional (3D)-printed resins designed for interim restorations and subjected to different printing and post-curing protocols. Specimens were manufactured with two 3D-printed resins for interim restorations at varying exposure times per layer, in accordance with the manufacturer's recommendations (Tm) or using a calibrator (Tc). Subsequently, the specimens were post-cured for 5, 10, or 15 min. Trueness, surface roughness, and color analyses were performed. For biological characterization, the specimens were incubated for up to 72 h in a culture medium, and the extracts were applied at 24-h intervals to keratinocyte cells (NOK-Si). Cellular metabolism was evaluated after 1 and 3 days. Leaching of residual monomers from the extracts was evaluated. Data were analyzed using two-way analysis of variance (ANOVA) and Tukey's honestly significant difference (HSD) test (α = 5%). The exposure time beyond Tc resulted in specimens with increased trueness and smoother surfaces. Color stability was also influenced by the type of resin and post-curing time; the longer the time, the greater the color change, allowing for brighter and clearer specimens. The resins were cytocompatible with NOK-Si, regardless of the printing and post-curing parameters, although residual monomer leaching was affected by the parameters tested. The evaluated resins were cytocompatible; however, variations in the exposure times per layer and post-curing duration affected their roughness, leaching, trueness, and color stability.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"39 ","pages":"e019"},"PeriodicalIF":1.3000,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11844818/pdf/","citationCount":"0","resultStr":"{\"title\":\"Properties of 3D-Printed resins for interim restorations: effects of printing and post-curing protocols.\",\"authors\":\"Leandro Edgar Pacheco, Fernanda Balestrero Cassiano, Vitor de Toledo Stuani, Isabela Sanches Pompeo da Silva, Larissa Alamo, Matheus de Castro Costa, Marcella Fernandes Lovison, Sergio Kyioshi Ishikiriama, Rafael Francisco Lia Mondelli, Diana Gabriela Soares\",\"doi\":\"10.1590/1807-3107bor-2025.vol39.019\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>This study analyzed the properties of three-dimensional (3D)-printed resins designed for interim restorations and subjected to different printing and post-curing protocols. Specimens were manufactured with two 3D-printed resins for interim restorations at varying exposure times per layer, in accordance with the manufacturer's recommendations (Tm) or using a calibrator (Tc). Subsequently, the specimens were post-cured for 5, 10, or 15 min. Trueness, surface roughness, and color analyses were performed. For biological characterization, the specimens were incubated for up to 72 h in a culture medium, and the extracts were applied at 24-h intervals to keratinocyte cells (NOK-Si). Cellular metabolism was evaluated after 1 and 3 days. Leaching of residual monomers from the extracts was evaluated. Data were analyzed using two-way analysis of variance (ANOVA) and Tukey's honestly significant difference (HSD) test (α = 5%). The exposure time beyond Tc resulted in specimens with increased trueness and smoother surfaces. Color stability was also influenced by the type of resin and post-curing time; the longer the time, the greater the color change, allowing for brighter and clearer specimens. The resins were cytocompatible with NOK-Si, regardless of the printing and post-curing parameters, although residual monomer leaching was affected by the parameters tested. The evaluated resins were cytocompatible; however, variations in the exposure times per layer and post-curing duration affected their roughness, leaching, trueness, and color stability.</p>\",\"PeriodicalId\":9240,\"journal\":{\"name\":\"Brazilian oral research\",\"volume\":\"39 \",\"pages\":\"e019\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2025-02-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11844818/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brazilian oral research\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1590/1807-3107bor-2025.vol39.019\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q3\",\"JCRName\":\"DENTISTRY, ORAL SURGERY & MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian oral research","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1590/1807-3107bor-2025.vol39.019","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
Properties of 3D-Printed resins for interim restorations: effects of printing and post-curing protocols.
This study analyzed the properties of three-dimensional (3D)-printed resins designed for interim restorations and subjected to different printing and post-curing protocols. Specimens were manufactured with two 3D-printed resins for interim restorations at varying exposure times per layer, in accordance with the manufacturer's recommendations (Tm) or using a calibrator (Tc). Subsequently, the specimens were post-cured for 5, 10, or 15 min. Trueness, surface roughness, and color analyses were performed. For biological characterization, the specimens were incubated for up to 72 h in a culture medium, and the extracts were applied at 24-h intervals to keratinocyte cells (NOK-Si). Cellular metabolism was evaluated after 1 and 3 days. Leaching of residual monomers from the extracts was evaluated. Data were analyzed using two-way analysis of variance (ANOVA) and Tukey's honestly significant difference (HSD) test (α = 5%). The exposure time beyond Tc resulted in specimens with increased trueness and smoother surfaces. Color stability was also influenced by the type of resin and post-curing time; the longer the time, the greater the color change, allowing for brighter and clearer specimens. The resins were cytocompatible with NOK-Si, regardless of the printing and post-curing parameters, although residual monomer leaching was affected by the parameters tested. The evaluated resins were cytocompatible; however, variations in the exposure times per layer and post-curing duration affected their roughness, leaching, trueness, and color stability.