Evaluation of Different Materials and Techniques Used for Repairing of Digital Denture Base | ||||
Al-Azhar Assiut Dental Journal | ||||
Article 1, Volume 6, Issue 1, April 2023, Page 1-11 PDF (2.31 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/aadj.2023.296411 | ||||
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Authors | ||||
Mohamed Aboshama* ; Eslam AbdElhady; Mostafa Hammas | ||||
Department of Removable Prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Assuit , Egypt. | ||||
Abstract | ||||
Aim: to assess the effect of different materials and techniques of surface treatment on the flexural strength of repaired 3D-printed denture base. Subjects and Methods: A total of 150 specimens were printed on a 3D printer in a rectangular shape in dimensions 65×10×2mm. The flexural specimens were 10 groups (n=15). Each specimen was sectioned in the middle into two halves. Group 1 (control), the first three groups repaired with 3D denture base resin using surface treatment of Monomer, Sandblasting, and a combination of both respectively. The second three groups repaired with heat-polymerized polymethyl methacrylate (HPA) using surface treatment of Monomer, Sandblasting, and a combination of both respectively. And last three groups repaired with Auto-polymerized polymethyl methacrylate (APA) using surface treatment of Monomer, Sandblasting, and a combination of both respectively. The flexural strength was measured using a universal testing machine. Statistical analysis was done using one-way ANOVA test and Tukey’s post-hoc test (α=.05). Results: The groups repaired with 3D denture base resin was significantly the highest mean flexural strength. Mechanical surface treatment was significantly the highest mean flexural strength in every repaired material. Conclusions: The 3D denture base resin is the material of choice for repairing fractured 3D dentures followed by (HPA) and then (APA). Mechanical surface treatment is recommended for repairing 3D dentures. | ||||
Keywords | ||||
3D-printed acrylic resin denture bases; Denture repair; Surface treatment; Flexural strength; Polymethyl methacrylate | ||||
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