Assessment of the compressive strength and surface roughness of acrylic denture bases reinforced with ostrich eggshell powder
DOI:
https://doi.org/10.32828/wd4nff17Keywords:
heat-cured acrylic, dried ostrich eggshell powder, compressive strength, roughnessAbstract
Background: The material most frequently employed in the dental industry is polymethyl methacrylate (PMMA). Temporary dental restorations, including those for complex indications such as implants or large-span bridges, are manufactured using this material. However, its numerous limitations render it unsuitable for application in all situations. Consequently, individuals utilizing removable prostheses must be concerned regarding the potential for fracture. The purpose of this study: examined the effects of various particle sizes of 5% hydroxyapatite (which was prepared from ostrich eggshell powder) on the roughness and compressive strength of heat-cured acrylic resin. Materials and Methods: A total of 28 cylindrical samples composed of pink heat-treated acrylic resin were fabricated and subsequently categorized into four experimental groups; Group A (Control without any additive), Group B (Particle size 80µm), Group C (Particle size 70 µm), and Group D (Particles Size 50 µm). Each group consisted of seven samples categorized according to the varying sizes of hydroxyapatite particles. The test groups homogenously blended at a weight percentage of 5% of ostrich eggshell powder. Subsequently, an assessment was conducted to determine the collective compressive strength and surface roughness of this groups. Result: The results of the investigation showed significant variations in compressive strength for group B (107±3.742 MPA), group C (103.43±5.192 MPA), and group D (98.43±7.323 MPA) concerning the different sizes of hydroxyapatite particles compared to group A (74±4.163 MPA). While there was a significant increase in surface roughness for groups B (3.22±0.014), C (2.41±0.018), and D (2.36±0.077) compared to group A (1.451±0.073). Conclusion: Varying the particle size of hydroxyapatite added to the thermosetting acrylic resin (80μm, 70μm, and 50μm) increases both the material's compressive strength and surface roughness.
References
1. Alqutaibi, A.Y., et al., Polymeric denture base materials: a review. Polymers, 2023. 15(15): p. 3258.
2. Rakhshan, V., Common risk factors for postoperative pain following the extraction of wisdom teeth. Journal of the Korean Association of Oral and Maxillofacial Surgeons, 2015. 41(2): p. 59.
3. Ghasemi, F., et al., Different modification methods of poly methyl methacrylate (PMMA) bone cement for orthopedic surgery applications. Archives of Bone and Joint Surgery, 2023. 11(8): p. 485.
4. Yu, S.-H., et al., Reinforcing effects of different fibers on denture base resin based on the fiber type, concentration, and combination. Dental materials journal, 2012. 31(6): p. 1039-1046.
5. Abdullah, Z.S., Effect of Tantalum Oxide Nanopowder on Heat Cure Acrylic Resin Impact Strength and Surface Hardness. Diyala Journal of Medicine, 2023. 25(1): p. 159-169.
6. Muthu, D., et al., Rapid synthesis of eggshell derived hydroxyapatite with nanoscale characteristics for biomedical applications. Ceramics International, 2022. 48(1): p. 1326-1339.
7. Habibah, T.U., D.V. Amlani, and M. Brizuela, Hydroxyapatite dental material. 2018.
8. Nayak, A.K., Hydroxyapatite synthesis methodologies: an overview. International Journal of ChemTech Research, 2010. 2(2): p. 903-907.
9. Caliman, L.B., S.N.d. Silva, J.A. Junkes, and V.P.D. Sagrillo, Ostrich eggshell as an alternative source of calcium ions for biomaterials synthesis. Materials research, 2017. 20: p. 413-417.
10. AL-Ghabban, R.M.J., S.S. Al-Habeeb, and F.A. Al–Berqdar, EVALUATIONS AND COMPARISON OF SOME MECHANICAL PROPERTIES OF THE SELF AND HOT–CURE–ACRYLIC DENTURE BASE MATERIALS UNDER DIFFERENT PRESSURES MODALITY. journal of kerbala university, 2009. 7(1).
11. AL-Bahar, Z.J.H., Evaluation the effect of incorporated hydroxyapatite prepared from dried eggshell on some properties of relined denture base. International Science Basic and Applied Research, 2014. 5: p. 13-20.
12. Karadi, R.H. and B.M. Hussein, Effect of modified nanohydroxyapatite fillers addition on some properties of heat cured acrylic denture base materials. Journal of baghdad college of dentistry, 2017. 29(2): p. 49-54.
13. Salih, S.I., J.K. Oleiwi, and Q.A. Hamad, Investigation of fatigue and compression strength for the PMMA reinforced by different system for denture applications. International Journal of Biomedical Materials Research, 2015. 3(1): p. 5-13.
14. Kul, E., L.İ. Aladağ, and R. Yesildal, Evaluation of thermal conductivity and flexural strength properties of poly (methyl methacrylate) denture base material reinforced with different fillers. The Journal of prosthetic dentistry, 2016. 116(5): p. 803-810.
15. SM, Z. and S. T Ebrahimi, A study on mechanical properties of PMMA/hydroxyapatite nanocomposite. Engineering, 2011. 2011.
16. Georgakopoulos-Soares, I., et al., Surface antibacterial properties enhanced through engineered textures and surface roughness: A review. Colloids and Surfaces B: Biointerfaces, 2023: p. 113584.
17. Tham, W. L., Chow, W. S., & Ishak, Z. M. (2010). Simulated body fluid and water absorption effects on poly (methyl methacrylate)/hydroxyapatite denture base composites. Express polymer letters, 4(9).
Downloads
Published
Issue
Section
Categories
License
Copyright (c) 2024 Najwah Hameed, Sarah A.Turki1, Atyaf M. Naser

This work is licensed under a Creative Commons Attribution 4.0 International License.
The Journal of Mustansiria Dental Journal is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
Creative Commons-Attribution (BY)