EFFECT OF THERMOCYCLING ON FLEXURAL AND IMPACT STRENGTH OF POLYMETHYL METHACRYLATE AND POLYETHERETHERKETONE DENTURE BASE MATERIAL

KRISWANDY PUTRA; ISMET DANIAL NASUTION; MUHAMMAD INDRA NASUTION; ARIYANI; ANUCHARTE SRIJUNBARL

doi:10.22159/ijap.2025.v17s5.16

Authors

KRISWANDY PUTRA Faculty of Dentistry, Universitas Sumatera Utara, Medan, Indonesia
ISMET DANIAL NASUTION Department of Prosthodontics, Faculty of Dentistry, Universitas Sumatera Utara, Medan, Indonesia
MUHAMMAD INDRA NASUTION Department of Prosthodontics, Faculty of Dentistry, Universitas Sumatera Utara, Medan, Indonesia
ARIYANI Department of Prosthodontics, Faculty of Dentistry, Universitas Sumatera Utara, Medan, Indonesia
ANUCHARTE SRIJUNBARL Development Centre, Faculty of Dentistry, Chulalongkorn University, Bangkok, Pathumwan, Thailand

DOI:

https://doi.org/10.22159/ijap.2025.v17s5.16

Keywords:

Flexural strength, Impact strength, Thermocycling, Polymethyl methacrylate, Polyetheretherketone

Abstract

Objective: The most widely used resin as denture base is Polymethyl Methacrylate (PMMA). But due to its low impact and flexural strength, it increases the risk of failure during clinical use. To lower the risk of denture base fracture in PMMA full denture, reinforcement material is used. Nowadays, Polyetheretherketone (PEEK) has been introduced in dentistry with better mechanical and physical properties than PMMA. However, there has been no study looking at the effect of aging on the flexural strength and impact of PEEK as a denture base material.

Methods: A total of 42 samples consisting of 21 PMMA samples and 21 PEEK samples were made for each Flexural and impact test. The samples were divided into three groups: control, 2000 and 5000 thermocycling cycles, with each group have 7 samples. Flexural strength testing was carried out using the three-point bending method with a universal testing machine while the impact strength test was carried out by the charpy method using a charpy impact testing machine.

Results: There was a significant difference in flexural strength between PMMA and PEEK based on the duration of use with a value of p<0.05. There was also a significant difference in he impact strength between PMMA and PEEK based on the length of use with a value of p<0.05. In PMMA group testing on the flexural strength and Impact of PMMA, there was a significant effect with p<0.05. In PEEK group testing on the flexural strength and impact strength, there was no significant effect on the duration of use with p>0.05.

Conclusion: PEEK can be used as a base material for dentures that aim to increase flexural and impact strength in the required clinical conditions. There was no significant effect on PEEK mechanical properties in 5 y of use.

References

1. Raszewski Z. Mechanical properties of hot curing acrylic resins after reinforced with different kinds of fibers. IJBMR. 2013;1(1):9. doi: 10.11648/j.ijbmr.20130101.12.

2. McCabe JF, Walls AW. Applied dental materials. 9th ed. John Wiley & Sons; 2013.

3. Alla RK, Sajjan S, Alluri VR, Ginjupalli K, Upadhya N. Influence of fiber reinforcement on the properties of denture base resins. J Biomater Nanobiotechnology. 2013;4(1):91-7. doi: 10.4236/jbnb.2013.41012.

4. Mowade TK, Dange SP, Thakre MB, Kamble VD. Effect of fiber reinforcement on impact strength of heat polymerized polymethyl methacrylate denture base resin: in vitro study and SEM analysis. J Adv Prosthodont. 2012;4(1):30-6. doi: 10.4047/jap.2012.4.1.30, PMID 22439098.

5. Shakir S. Causes and types of denture fractures-a study. Pakistan Oral and Dental Journal. 2017;37(4):634-7.

6. Martu I. Complete dentures fractures-causes and incidence. Rom J Oral Rehabil. 2017;9(2):60-4.

7. Zarb G, Hobkirk J, Eckert S, RJ. Prosthodontic treatment for edentulous patients complete denture and implant-supported prostheses. 13th ed. Elsevier; 2012.

8. Wiesli MG, Ozcan M. High-performance polymers and their potential application as medical and oral implant materials: a review. Implant Dent. 2015;24(4):448-57. doi: 10.1097/ID.0000000000000285, PMID 26035377.

9. Schwitalla A, Muller WD. PEEK dental implants: a review of the literature. J Oral Implantol. 2013;39(6):743-9. doi: 10.1563/AAID-JOI-D-11-00002, PMID 21905892.

10. Schwitalla AD. Flexural behavior of PEEK materials for dental application Flexural behavior of PEEK materials for dental application. Dent Mater. 2018;31(11):1377-84. doi: 10.1016/jal.2015.08.151.

11. Zoidis P, Papathanasiou I, Polyzois G. The use of a modified poly-ether-ether-ketone (PEEK) as an alternative framework material for removable dental prostheses a clinical report. J Prosthodont. 2015;25(7):580-4. doi: 10.1111/jopr.12325, PMID 26216668.

12. Ma R, Tang T. Current strategies to improve the bioactivity of PEEK. Int J Mol Sci. 2014;15(4):5426-45. doi: 10.3390/ijms15045426, PMID 24686515.

13. Maldonado Naranjo AL, Healy AT, Kalfas IH. Polyetheretherketone (PEEK) intervertebral cage as a cause of chronic systemic allergy: a case report. Spine J. 2015 Jul 1;15(7):e1-3. doi: 10.1016/j.spinee.2015.04.011, PMID 25862511.

14. Kiomarsi N, Saburian P, Chiniforush N, Karazifard MJ, Hashemikamangar SS. Effect of thermocycling and surface treatment on repair bond strength of composite. J Clin Exp Dent. 2017;9(8):e945-51. doi: 10.4317/jced.53721, PMID 28936282.

15. Takahashi Y, Hamanaka I, Shimizu H. Effect of thermal shock on mechanical properties of injection-molded thermoplastic denture base resins. Acta Odontol Scand. 2012;70(4):297-302. doi: 10.3109/00016357.2011.600719, PMID 21793643.

16. Ayaz EA, Bagıs B, Turgut S. Effects of thermal cycling on surface roughness hardness and flexural strength of polymethylmethacrylate and polyamide denture base resins. J Appl Biomater Funct Mater. 2015;13(3):e280-6. doi: 10.5301/jabfm.5000236, PMID 26350350.

17. Goiato MC, Zucolotti BC, Dos Santos DM, Moreno A, Alves Rezende MC. Effects of thermocycling on mechanical properties of soft lining materials. Acta Odontol Latinoam. 2009;22(3):227-32. PMID 20302223.

18. Ariyani A, Nasution ID, Agusnar H. Effect of thermocycling and E-glass fiber addition on water sorption and color stability of thermoplastic nylon denture base material. IOSR. 2016;15(8):41-8. doi: 10.9790/0853-1508024148.

19. Siripanth J. Aging process on properties of denture lining materials. J Int Dent Med Res. 2022;15(3):1095-100.

20. Barjini N, Katebi T, Bahadoran R, Youssefi N. Resistencia a la flexion del polieter eter cetona polieter de alto rendimiento en comparacion con la aleacion de metal base y la ceramica de circonio [Flexural strength of polyether ether ketone high-performance polyether in comparison with base metal alloy and Zirconia ceramic]. J Oral Res. 2020;9(1):63-71. doi: 10.17126/joralres.2020.010.

21. Li P, Kramer Fernandez P, Klink A, Xu Y, Spintzyk S. Repairability of a 3D printed denture base polymer: effects of surface treatment and artificial aging on the shear bond strength. J Mech Behav Biomed Mater. 2021;114:104227. doi: 10.1016/j.jmbbm.2020.104227, PMID 33279875.

22. Reddy MS. Effect of thermocycling aging on denture base resin-a comparative analysis. Journal of Coastal Life Medicine. 2022;10(1):312-23.

23. Mithran A, Rakhra J, Jain SK, Chikkanna M, Pillai S, Nayyar A. Comparative evaluation of impact strength of mechanically modified heat polymerized polymethylmethacrylate (PMMA) resin with addition of 0.5, 1, 2 wt% of silver nanoparticles (AgNPs): an in vitro study. J Orthod Sci. 2023 Nov 2:12:64. doi: 10.4103/jos.jos_43_23.

24. Chhabra M, Nanditha Kumar M, Raghavendra Swamy KN, Thippeswamy HM. Flexural strength and impact strength of heat-cured acrylic and 3D printed denture base resins a comparative in vitro study. J Oral Biol Craniofac Res. 2022 Jan-Feb;12(1):1-3. doi: 10.1016/j.jobcr.2021.09.018, PMID 34745858.

25. Sasaki H, Hamanaka I, Takahashi Y, Kawaguchi T. Effect of long-term water immersion or thermal shock on mechanical properties of high-impact acrylic denture base resins. Dent Mater J. 2016;35(2):204-9. doi: 10.4012/dmj.2015-291, PMID 27041009.

26. McKeen LW. The effect of creep and other time related factors on plastics and elastomers. 2nd ed. Boston: William Andrew Publishing (Plastics Design Library); 2009. p. 337-72.

27. Kurtz S. PEEK Biomaterials Handbook. Willium Andrew; 2012.