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논문 기본 정보

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학술저널
저자정보
Afnan Fouzan Alfouzan (Department of Prosthetic Dental Sciences College of Dentistry King Saud University Riyadh Saudi) Hadeel Minife Alotiabi (College of Dentistry King Saud Bin Abdulaziz University for Health Sciences Riyadh Saudi Arabia) Nawaf Labban (Department of Prosthetic Dental Sciences College of Dentistry King Saud University Riyadh Saudi) Hanan Nejer Al-Otaibi (Department of Prosthetic Dental Sciences College of Dentistry King Saud University Riyadh Saudi) Sara Mohammad Al Taweel (Department of Prosthetic Dental Sciences College of Dentistry King Saud University Riyadh Saudi) Huda Ahmed AlShehri (College of Dentistry King Saud Bin Abdulaziz University for Health Sciences Riyadh Saudi Arabia)
저널정보
대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제13권 제3호
발행연도
2021.1
수록면
160 - 171 (12page)

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Purpose. This in-vitro study evaluated and compared the color stability of 3D-printed and conventional heat-polymerized acrylic resins following aging, mechanical brushing, and immersion in staining medium. Materials and methods. Forty disc-shaped specimens (10 mm in diameter and 3 mm thick) were prepared from two 3D-printed [DentaBASE (DB) and Denture 3D+ (D3D)] and one conventional polymethylmethacrylate (PMMA) denture materials. The specimens were thermo-cycled, subjected to mechanical brushing, and were immersed in either coffee, lemon juice, coke, or artificial saliva (AS) to simulate one and two years of oral use. Color measurements of the specimens were recorded by a spectrophotometer at baseline (T0), and after one (T1) and two years (T2) of simulation. The color changes (ΔE) were determined and also quantified according to the National Bureau of Standards (NBS) units. Descriptive statistics, followed by factorial ANOVA and Bonferroni post-hoc test (α=.05), were applied for data analysis. Results. The independent factors, namely material, staining medium, and immersion time, and interaction among these factorssignificantly influenced ΔE (P <.009). Irrespective of the materials, treatments, and time, the highest and the lowest mean ΔEs were observed for PMMA in lemon juice (4.58 ± 1.30) and DB in AS (0.41 ± 0.18), respectively. Regarding the material type, PMMA demonstrated the highest mean ΔE (2.31 ± 1.37), followed by D3D (1.67 ± 0.66), and DB (0.85 ± 0.52), and the difference in ΔE between the materials were statistically significant (P <.001). All the specimens demonstrated a decreased color changes at T2 compared to T1, and this difference in mean ΔE was statistically significant (P <.001). Conclusion. The color changes of 3D-printed denture resins were low compared to conventional heat polymerized PMMA. All the tested materials, irrespective of the staining medium used, demonstrated a significant decrease in ΔE values over time.
#3D-printing #CAD/CAM technologies #Stereolithography #Polymethylmethacrylate #Colour change #Acrylic resins

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참고문헌 (51)

참고문헌 신청
Cunha-Cruz J / 2007 / Secular trends in socio-economic disparities in edentulism:USA, 1972-2001 / J Dent Res 86:131~136 google schola Emami E / 2013 / The impact of edentulism on oral and general health / Int J Dent 2013:498305 google schola Anadioti E / 2020 / 3D printed complete removable dental prostheses : a narrative review / BMC Oral Health 20:e343 google schola Al-Dwairi ZN / 2019 / A comparison of the surface properties of CAD/CAM and conventional polymethylmethacrylate (PMMA) / J Prosthodont 28:452~457 google schola Paulino MR / 2015 / Simplified versus traditional techniques for complete denture fabrication : a systematic review / J Prosthet Dent 113:12~16 google schola

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