Fracture Resistance of Interim Restoration Constructed by 3D Printing versus CAD/CAM Technique in Different Oral Media (In Vitro Study) | ||||
| Egyptian Dental Journal | ||||
| Volume 70, Issue 2 - Serial Number 4, April 2024, Page 1547-1555 PDF (1.15 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2024.258131.2848 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
abdelrahman rashad mohamed   1; Omaima El mahallawy 2; Raiesa Mohamed Hashem 3
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| 1Dentist in Egyptian Ministry of Health, Egypt | ||||
| 2Professor of Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Egypt | ||||
| 3Assistant professor of Fixed Prosthodontics Department, Faculty of Dentistry, Minia University, Egypt | ||||
| Abstract | ||||
| Aim: The goal of the research was to assess fracture resistance of temporary restoration materials that will be fabricated with 3D printed technique and CAD/CAM technique in different oral media (artificial saliva, tea, carbonated orange juice). Methods: According to the sample size calculation, 40-crown-shaped samples were divided into two groups (n=20); group I was manufactured by CAD/CAM, and group II was manufactured by 3D printing technology. Each group was subdivided into four subgroups (n=5). According to the immersion solution, subgroup (A) Artificial saliva, subgroup (B) Tea, subgroup (c) Carbonated orange juice, and subgroup (D) the control (non-immersion). The prepared model was scanned using an extra-oral scanner. Interim crowns were designed using 3Shape software. STL file was Produced and sent to both milling machine and printer. . All samples then were immersed in the different oral media for 7 days. Finally all samples were subjected to fracture resistance testing by using universal testing machine. The data collected, tabulated and statistically analyzed. Results: Results of the fracture resistance in control group showed higher non-statistically significant difference in cad cam technique (1262.8±580.68)than 3d printing technique(817.98±78.48) ,While after immersion in different oral media the fracture resistance samples of cad cam showed higher statistically significant different (1012.56±363.97) than in 3d printing (594.9 ± 163.1). Conclusion: The total fracture resistance of milled temporary crowns showed higher fracture resistance than 3D printing technique in different oral media with statistically significant difference. | ||||
| Keywords | ||||
| Interim restoration; 3D printing; CAD/ CAM; Oral media | ||||
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