Clinical, Cosmetic and Investigational Dentistry (Jun 2024)

Effect of Dietary Simulating Solvents on the CAD-CAM Provisional Restorative Materials’ Microhardness and Color Stability Properties: An in vitro Study

  • Alalawi H,
  • Al-Qanas S,
  • Al-Ghamdi S,
  • Al-Fuhaid R,
  • Khan S,
  • AlGhamdi MA,
  • Almulhim KS,
  • Aljofi FE,
  • Khan ZA,
  • Al-Dulaijan YA

Journal volume & issue
Vol. Volume 16
pp. 237 – 248

Abstract

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Haidar Alalawi,1 Sarah Al-Qanas,2 Sarah Al-Ghamdi,2 Raghad Al-Fuhaid,2 Soban Khan,3 Maram A AlGhamdi,1 Khalid S Almulhim,4 Faisal E Aljofi,5 Zahid A Khan,1 Yousif A Al-Dulaijan1 1Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia; 2College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia; 3Department of Dental Education, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia; 4Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia; 5Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi ArabiaCorrespondence: Yousif A Al-Dulaijan, Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia, Tel +966 13 333 1462, Email [email protected]: This in vitro study investigated the effects of dietary solvents on the microhardness and color stability of CAD/CAM provisional restorations compared to conventional materials.Methods: Disc-shaped specimens (n=200) were fabricated from self-cured acrylic resin, two 3D-printing resins (FormLabs, NextDent), and a milled material (TelioCAD). Randomization assigned specimens (n=10/group) to immersion solutions: artificial saliva, citric acid, heptane, coffee, and tea. Microhardness and color stability were evaluated. One-way and three-way ANOVA with Tukey’s post hoc test analyzed the data.Results: Dietary solvents significantly reduced the surface microhardness of all tested materials (p< 0.05). Unpolished surfaces exhibited greater color changes compared to polished ones (p< 0.05) across all materials. Coffee and tea induced the most substantial reductions in hardness and the most significant color alterations (p< 0.05), whereas saliva and citric acid had minimal effects.Conclusion: Milled provisional restorations exhibited superior hardness and color stability. Dietary solvents significantly affected material properties over time, highlighting the importance of material selection for clinical applications.Keywords: 3D-printed, color stability, food, microhardness, milled, self-cure resin

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