Comparison of some physical properties of CAD/CAM millled PEEK and PMMA with conventional denture base materials

Öz

Aim: The purpose of this study was to investigate the surface and physical properties of base materials (PMMA/PEEK) formed with CAD/CAM and heat polymerized conventional base material. Method: In this study, two different base polymers milled with CAD/CAM (Yamahachi PMMA Disk and Juvora Dental Disk PEEK) and one heat polymerized acrylic resin (Meliodent PMMA) were used. A total of 120 test samples (n = 10) were prepared. Half of the test specimens were stored in distilled water. While the other half, the thermal cycle was applied. After the thermal cycling; surface roughness, water absorption and solubility of all test specimens were evaluated. Results: The PMMA test specimens produced with CAD/CAM showed the lowest surface roughness values (0.31 ± 0.06 µm). The PEEK group produced by CAD/CAM showed statistically significantly lower results in terms of water absorption than the other two groups (p<0.001). Thermal cycling did not significantly affect the surface roughness, water sorption and solubility values of all test samples (respectively, p= 0.22; p= 0.912; p = 0.062). Conclusion: PMMA and PEEK materials produced by CAD/CAM showed better physical properties compared to heat-polymerized acrilic resin test specimens.

Anahtar Kelimeler

• Denture bases
• CAD/CAM
• Polyetheretherketone
• polymethyl methacrylate
• surface properties

CAD/CAM ile üretilmiş PEEK ve PMMA ile geleneksel protez kaide materyallerinin bazı fiziksel özelliklerinin karşılaştırılması

Öz

Amaç: Bu çalışmanın amacı, CAD/CAM ile şekillendirilen kaide materyalleri (PMMA/PEEK) ve ısı ile polimerize olan geleneksel kaide materyalinin yüzey ve fiziksel özelliklerinin incelenmesidir. Yöntem: Bu çalışmada CAD/CAM ile frezelenmiş iki farklı kaide polimeri (Yamahachi PMMA Disk ve Juvora Dental Disk PEEK) ve bir adet ısı ile polimerize olan akrilik rezin (Meliodent PMMA) kullanıldı. Toplam 120 adet test örneği (n=10) hazırlandı. Test örneklerinin yarısı distile suda bekletildi. Diğer yarısına ise, termal döngü uygulandı. Termal döngüden sonra tüm test örneklerinin yüzey pürüzlülüğü, su emilimi ve çözünürlüğü değerlendirildi. Bulgular: CAD/CAM ile üretilen PMMA test örnekleri en düşük yüzey pürüzlülüğü değerleri (0.31±0.06 µm) göstermiştir. CAD/CAM ile üretilen PEEK grubu su emilimi açısından diğer iki grup test örneklerine göre istatistiksel olarak anlamlı daha düşük bulgular vermiştir (p<0.001). Termal döngü uygulaması test örneklerinin tümünün yüzey pürüzlülüğü, su emilimi ve çözünürlüğü değerlerini anlamlı derecede etkilememiştir (sırasıyla p=0.22; p=0.912; p=0.062). Sonuç: CAD/CAM ile üretilen PMMA ve PEEK materyalleri, ısı ile polimerize olan akrilik rezin test örnekleri ile kıyaslandığında daha iyi fiziksel özellikler göstermiştir.

Anahtar Kelimeler

• Protez kaideleri
• CAD/CAM
• Polietereterketon
• Polimetil metakrilat
• yüzey özellikleri

Kaynakça

1. 1. Hamouda IM, Beyari MM. Addition of glass fibers and titanium dioxide nanoparticles to the acrylic resin denture base material: comparative study with the conventional and high impact types. Oral Heal Dent Manag 2014;13(1):107-112.
2. 2. Ayman AD. The residual monomer content and mechanical properties of CAD\CAM resins used in the fabrication of complete dentures as compared to heat cured resins. Electron Physician 2017;9(7):4766-4772.
3. 3. Al-Dwairi ZN, Tahboub KY, Baba NZ, Goodacre CJ, Ozcan M. Comparison of the surface properties of CAD/CAM and conventional polymethylmethacrylate (PMMA). J Prosthodont 2019;28(4):452-457.
4. 4. Alp G, Johnston WM, Yilmaz B. Optical properties and surface roughness of prepolymerized poly(methyl methacrylate) denture base materials. J Prosthet Dent 2019;121(2):347-352.
5. 5. Karci M, Demir N, Yazman S. Evaluation of flexural strength of different denture base materials reinforced with different nanoparticles. J Prosthodont 2019; 28(5), 572-579.
6. 6. Shinawi LA. Effect of denture cleaning on abrasion resistance and surface topography of polymerized CAD CAM acrylic resin denture base. Electron Physician 2017;9(5):4281-4288.
7. 7. Bidra AS, Taylor TD, Agar JR. Computer-aided technology for fabricating complete dentures: Systematic review of historical background, current status, and future perspectives. J Prosthet Dent 2013;109(6):361-366.
8. 8. Infante L, Yilmaz B, McGlumphy E, Finger I. Fabricating complete dentures with CAD/CAM technology. J Prosthet Dent 2014;111(5):351-355.

9. 9. Arnold C, Hey J, Schweyen R, Setz JM. Accuracy of CAD-CAM-fabricated removable partial dentures. J Prosthet Dent 2018;119(4):586-592.
10. 10. Goodacre CJ, Garbacea A, Naylor WP, Daher T, Marchack CB, Lowry J. CAD/CAM fabricated complete dentures: Concepts and clinical methods of obtaining required morphological data. J Prosthet Dent 2012;107(1):34-46.
11. 11. Baba NZ, Alrumaih HS, Goodacre BJ, Goodacre CJ. Current techniques in CAD/CAM denture fabrication. Gen Dent 2016;64(6):23-28.
12. 12. Heimer S, Schmidlin PR, Roos M, Stawarczyk B. Surface properties of polyetheretherketone after different laboratory and chairside polishing protocols. J Prosthet Dent 2017;117(3):419-425.
13. 13. Stawarczyk B, Thrun H, Eichberger M, Roos M, Edelhoff D, Schweiger J, Schmidlin, PR. Effect of different surface pretreatments and adhesives on the load-bearing capacity of veneered 3-unit PEEK FDPs. J Prosthet Dent 2015;114(5):666-673.
14. 14. Hahnel S, Scherl C, Rosentritt M. Interim rehabilitation of occlusal vertical dimension using a double-crown-retained removable dental prosthesis with polyetheretherketone framework. J Prosthet Dent 2018;119(3):315-318.
15. 15. Najeeb S, Zafar MS, Khurshid Z, Siddiqui F. Applications of polyetheretherketone (PEEK) in oral implantology and prosthodontics. J Prosthodont Res 2016;60(1):12-19.
16. 16. Al-Dwairi ZN, Tahboub KY, Baba NZ, Goodacre CJ. A Comparison of the flexural and impact strengths and flexural modulus of CAD/CAM and conventional heat-cured polymethyl methacrylate (PMMA). J Prosthodont 2020;29(4):341-349.
17. 17. Porwal A, Khandelwal M, Punia V, Sharma V. Effect of denture cleansers on color stability, surface roughness, and hardness of different denture base resins. J Indian Prosthodont Soc 2017; 17(1): 61-67.
18. 18. Abuzar MA, Bellur S, Duong N, et al. Evaluating Surface Roughness of A Polyamide Denture Base Material in Comparison with Poly (Methyl Methacrylate). J Oral Sci 2010;52(4):577-581.
19. 19. Oliveira LV, Mesquita MF, Henriques GE, Consani RL, Fragoso WS. Effect of polishing technique and brushing on surface roughness of acrylic resins. J Prosthodont 2008; 17(4): 308-311.
20. 20. Sharma P, Garg S, Kalra NM. Effect of denture cleansers on surface roughness and flexural strength of heat cure denture base resin-an ın vitro study. J Clin Diagn Res 2017; 11(8): 94-97.
21. 21. Zissis AJ, Polyzois GL, Yannikakis SA, Harrison A. Roughness of denture materials: a comparative study. Int J Prosthodont 2000; 13(2): 136-140.
22. 22. Liebermann A, Wimmer T, Schmidlin PR, Scherer H, Löffler P, Roos M, Stawarczyk, B. Physicomechanical characterization of polyetheretherketone and current esthetic dental CAD/CAM polymers after aging in different storage media. J Prosthet Dent 2016; 115(3): 321-328.
23. 23. Asopa V, Suresh S, Khandelwal M, Sharma V, Asopa SS, Kaira LS. A comparative evaluation of properties of zirconia reinforced high impact acrylic resin with that of high impact acrylic resin. The Saudi J Dent Res 2015; 6(2): 146–151.
24. 24. Shah J, Bulbule N, Kulkarni S, Shah R, Kakade D. Comparative evaluation of absorption, solubility and microhardness of heat cure polymethylmethacrylate denture base resin & flexible denture base resin. J Clin Diagn Res 2014; 8(8): 1-4.
25. 25. ISO 20795-1, Dentistry-Base polymers -Denture base polymers, International Standards Organization (2008)
26. 26. Scherillo G, Petretta M, Galizia M, La Manna P, Musto P, Mensitieri G. Thermodynamics of water absorption in high performance glassy thermoplastic polymers. Front Chem 2014; 2: 1-16.
27. 27. Skirbutis G, Dzingutė A, Masiliūnaitė V, Šulcaitė G, Žilinskas J. PEEK polymer's properties and its use in prosthodontics A review. Stomatologija 2018; 20(2): 54-58.
28. 28. Tuna SH, Keyf F, Gumus HO, Uzun C. The evaluation of water absorption/solubility on various acrylic resins. Eur J Dent 2008; 2: 191-197. 29. Nguyen LG, Kopperud HM, Øilo M. Water absorption and solubility of polyamide denture base materials. Acta Biomater Odontol Scand 2017; 3(1): 47-52.
29. 30. Goiato MC, Nóbrega AS, dos Santos DM, Andreotti AM, Moreno A. Effect of different solutions on color stability of acrylic resin-based dentures. Braz Oral Res 2014; 28(1): 1-7.