Jeong Hwa Lee, KeunBaDa Son, Ki-Whan Chang, Min-Jeong Kim
언어
영어(ENG)
URL
https://www.earticle.net/Article/A468388
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초록
영어
Purpose: This study aimed to evaluate the shear bond strength between ceramic materials and metal substructures fabricated through casting, milling, and three-dimensional (3D) printing techniques. Methods: In total, 45 specimens were fabricated using casting, milling, and 3D-printing (N=15 per group), followed by the application of ceramic to the metal substructures; the specimen dimensions followed ISO/CD 9693 guidelines (height=10 mm, radius=6 mm). Shear bond strength was measured using a universal testing machine, with the maximum load recorded at complete fracture. Fracture patterns were examined under a scanning electron microscope (TESCAN MIRA KH-7700, Hirox). Differences in the specimens’ bond shear strength among the three fabrication techniques were assessed using one-way ANOVA, with post-hoc analysis performed using Tukey’s HSD test (α=0.05). Results: Shear bond strength differed significantly among the three fabrication methods (p<0.001). The milling group exhibited significantly higher shear bond strength than the casting and 3D-printing groups (p<0.05). Conclusion: Metal substructures fabricated via milling showed superior bond strength; therefore, milling is recommended when high shear bond strength is a clinical priority
목차
INTRODUCTION MATERIALS AND METHODS 1. Specimen preparation 2. Shear bond strength evaluation 3. Fracture pattern evaluation and elemental analysis 4. Statistical analysis RESULTS 1. Shear bond strength 2. Fracture patterns DISCUSSION CONCLUSIONS FUNDING ACKNOWLEDGEMENTS CONFLICT OF INTEREST ORCID REFERENCES
키워드
3D printingDental castingMetal-ceramicMillingStrength
저자
Jeong Hwa Lee [ Department of Biohealth Convergence, Meister Master’s Course, Daegu Health College, Daegu, Korea ]
KeunBaDa Son [ Advanced Dental Device Development Institute (A3DI), School of Dentistry, Kyungpook National University Daegu, Korea ]
Ki-Whan Chang [ Department of Biohealth Convergence, Meister Master’s Course, Daegu Health College, Daegu, Korea ]
Min-Jeong Kim [ Department of Biohealth Convergence, Meister Master’s Course, Daegu Health College, Daegu, Korea ]
Corresponding Author