Paul Mikhail, Igor Pesun, Francisco Azpiazu-Flores, Rodrigo França
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Ten droplet measurements were obtained for each group, with each droplet analyzed for advancing contact angle (ACA), receding contact angle (RCA), and the contact angle hysteresis (CAH) was calculated. The data of the experiment was analyzed using 2-way ANOVA, (α = 0.05) with Tukey's test.</p><p><strong>Results: </strong>CAH was demonstrated to have statistically significant differences among the denture bases (p < 0.05), with unaltered 3D printed exhibiting the largest CAH, followed by unaltered milled. The unaltered denture bases exhibited higher CAH than the polished, and there were no significant differences in CAH among the polished denture bases (p > 0.05). Sandblasting increased the ACA of the milled and conventional bases. The saliva substitutes exhibited differences in ACA, with Spry and VEGA having the highest ACA, and Biotene had the lowest CA of all the saliva substitutes evaluated.</p><p><strong>Conclusion: </strong>The manufacturing methods of denture bases influences the CAH, while the chemical composition of the denture base specimens does not appear to affect CAH. Sandblasting increases the ACA for the milled and conventional groups. Saliva substitutes do impact the ACA. Drawing from previous research, it is hypothesized that a 3D-printed denture base or sandblasting a milled denture base may offer greater resistance to dislodgement.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Wettability of saliva substitutes across various denture base fabrication techniques.\",\"authors\":\"Paul Mikhail, Igor Pesun, Francisco Azpiazu-Flores, Rodrigo França\",\"doi\":\"10.1111/jopr.13977\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>The present study evaluated the contact angles (CAs) of four denture base materials subjected to different surface treatments using deionized water and saliva substitutes.</p><p><strong>Material and methods: </strong>A total of 32 rectangular specimens were manufactured using four different denture base materials: heat-cured compression molded Lucitone 199 (C), milled Lucitone 199 (M), Formlabs Denture Base RP (P), and SR Ivocap High Impact (I). The CA of the surface of the unaltered, mechanically polished, and sandblasted surface specimens was evaluated after the application of five saliva substitutes: Biotene, VEGA, Spry, Moi-Stir, Dentilube, and ionized water. Ten droplet measurements were obtained for each group, with each droplet analyzed for advancing contact angle (ACA), receding contact angle (RCA), and the contact angle hysteresis (CAH) was calculated. The data of the experiment was analyzed using 2-way ANOVA, (α = 0.05) with Tukey's test.</p><p><strong>Results: </strong>CAH was demonstrated to have statistically significant differences among the denture bases (p < 0.05), with unaltered 3D printed exhibiting the largest CAH, followed by unaltered milled. The unaltered denture bases exhibited higher CAH than the polished, and there were no significant differences in CAH among the polished denture bases (p > 0.05). Sandblasting increased the ACA of the milled and conventional bases. 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引用次数: 0
摘要
目的：本研究评估了使用去离子水和唾液替代物进行不同表面处理的四种义齿基托材料的接触角（CA）：使用四种不同的义齿基托材料：热固化压模 Lucitone 199 (C)、铣削 Lucitone 199 (M)、Formlabs 义齿基托 RP (P) 和 SR Ivocap High Impact (I) 共制作了 32 个矩形试样。在使用五种唾液替代物后，对未改变、机械抛光和喷砂表面试样的表面 CA 进行了评估：Biotene、VEGA、Spry、Moi-Stir、Dentilube 和离子水。每组测量 10 个液滴，分析每个液滴的前进接触角 (ACA)、后退接触角 (RCA)，并计算接触角滞后 (CAH)。实验数据采用双因素方差分析（α = 0.05）和 Tukey 检验：结果：不同义齿基托之间的 CAH 差异具有统计学意义（P 0.05）。喷砂增加了磨制义齿基托和传统义齿基托的 ACA。唾液替代物的 ACA 存在差异，其中 Spry 和 VEGA 的 ACA 最高，而 Biotene 的 CA 在所有唾液替代物中最低：结论：义齿基托的制造方法会影响CAH，而义齿基托试样的化学成分似乎不会影响CAH。喷砂会增加磨制组和传统组的 ACA。唾液替代物确实会影响 ACA。根据以前的研究，我们假设三维打印义齿基托或喷砂研磨义齿基托可能具有更强的抗脱落性。
Wettability of saliva substitutes across various denture base fabrication techniques.
Purpose: The present study evaluated the contact angles (CAs) of four denture base materials subjected to different surface treatments using deionized water and saliva substitutes.
Material and methods: A total of 32 rectangular specimens were manufactured using four different denture base materials: heat-cured compression molded Lucitone 199 (C), milled Lucitone 199 (M), Formlabs Denture Base RP (P), and SR Ivocap High Impact (I). The CA of the surface of the unaltered, mechanically polished, and sandblasted surface specimens was evaluated after the application of five saliva substitutes: Biotene, VEGA, Spry, Moi-Stir, Dentilube, and ionized water. Ten droplet measurements were obtained for each group, with each droplet analyzed for advancing contact angle (ACA), receding contact angle (RCA), and the contact angle hysteresis (CAH) was calculated. The data of the experiment was analyzed using 2-way ANOVA, (α = 0.05) with Tukey's test.
Results: CAH was demonstrated to have statistically significant differences among the denture bases (p < 0.05), with unaltered 3D printed exhibiting the largest CAH, followed by unaltered milled. The unaltered denture bases exhibited higher CAH than the polished, and there were no significant differences in CAH among the polished denture bases (p > 0.05). Sandblasting increased the ACA of the milled and conventional bases. The saliva substitutes exhibited differences in ACA, with Spry and VEGA having the highest ACA, and Biotene had the lowest CA of all the saliva substitutes evaluated.
Conclusion: The manufacturing methods of denture bases influences the CAH, while the chemical composition of the denture base specimens does not appear to affect CAH. Sandblasting increases the ACA for the milled and conventional groups. Saliva substitutes do impact the ACA. Drawing from previous research, it is hypothesized that a 3D-printed denture base or sandblasting a milled denture base may offer greater resistance to dislodgement.
期刊介绍：
The Journal of Prosthodontics promotes the advanced study and practice of prosthodontics, implant, esthetic, and reconstructive dentistry. It is the official journal of the American College of Prosthodontists, the American Dental Association-recognized voice of the Specialty of Prosthodontics. The journal publishes evidence-based original scientific articles presenting information that is relevant and useful to prosthodontists. Additionally, it publishes reports of innovative techniques, new instructional methodologies, and instructive clinical reports with an interdisciplinary flair. The journal is particularly focused on promoting the study and use of cutting-edge technology and positioning prosthodontists as the early-adopters of new technology in the dental community.
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