Effect of Silanized Microcrystalline Cellulose Incorporation on Physicomechanical Properties and Denture Base Adaptation of Heat-Cured Acrylic Material
Keywords:
Silanized microcrystalline cellulose, physicomechanical properties, heat-cured acrylic material.Abstract
Background: Among various polymers, acrylic resin is the material of choice for removable dentures fabrication. Nevertheless, it has some drawbacks, such as poor impact strength, low hardness, water sorption, and dimensional change. Recently, natural plant fillers have been used to improve polymers properties.
Objective: to evaluate the impact of adding silanized microcrystalline cellulose on: impact strength, surface hardness, surface roughness, wettability, water sorption and solubility, and denture base adaptation of heat-cured acrylic denture base material.
Materials and methods: A study was conducted to select the appropriate percentages of silanized microcrystalline cellulose to be used in the main study. Accordingly, 1wt.% and 1.5wt.% of silanized microcrystalline cellulose were selected. A total of 180 samples were equipped and separated into six main collections according to the tests. Then, each group was additional divided into three different subgroups grounded on the proportion of microcrystalline cellulose (0wt.%, 1wt.%, 1.5wt.%). Furthermore, by using field emission scanning electron microscope we analyzed the fractured surfaces of all specimens.
Results: FTIR analysis revealed that (3-aminopropyl) trimethoxysilane was chemically bonded to microcrystalline cellulose. A significant increase in surface hardness and contact angle values of wettability test and significant reduction in the surface roughness test between control group and both experimental groups, (P˂0.01). Impact strength test, was significantly increase for 1.5wt.% as compared to the control group (P˂0.01). In specimens containing 1.5wt.%, a significant reduction occurred in water sorption test and solubility(P˂0.01). For denture base adaptation, no significant increase was observed in the gap measurement in the midline region between the cast and denture base for both experimental groups as compared to the control (P˃0.05).
Conclusion: The addition of silanized microcrystalline cellulose to heat-cured acrylic can significantly improve its mechanical and physical characteristics. It reduces the acrylic wettability with the artificial saliva and leads to a non-significant increase of gap measurement in the midline region.
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References
Paranhos HD, Peracini A, Pisani MX, Oliveira VD, Souza RF, Silva-Lovato CH. Color stability, surface roughness and flexural strength of an acrylic resin submitted to simulated overnight immersion in denture cleansers. Brazilian dental journal. 2013;24(2):152-6.
Goldstein JI, Newbury DE, Michael JR, Ritchie NW, Scott JH, Joy DC. Scanning electron microscopy and X-ray microanalysis. springer; 2017 Nov 17.
Alla R, Raghavendra KN, Vyas R, Konakanchi A. Conventional and contemporary polymers for the fabrication of denture prosthesis: part I–overview, composition and properties. Int J Appl Dent Sci. 2015;1(4):82-9.
Im SM, Huh YH, Cho LR, Park CJ. Comparison of the fracture resistances of glass fiber mesh-and metal mesh-reinforced maxillary complete denture under dynamic fatigue loading. The journal of advanced prosthodontics. 2017 Feb 1;9(1):22-30.
Lee CJ, Bok SB, Bae JY, Lee HH. Comparative adaptation accuracy of acrylic denture bases evaluated by two different methods. Dental materials journal. 2010;29(4):411-7.
Alhareb AO, Akil HM, Ahmad ZA. Impact strength, fracture toughness and hardness improvement of PMMA denture base through addition of nitrile rubber/ceramic fillers. The Saudi Journal for Dental Research. 2017 Jan 1;8(1-2):26-34.
Al-Nori AK, Hussain A, Rejab LT. Water sorption of heat–cured acrylic resin. Al-Rafidain Dental Journal. 2007 Jun 1;7(2):186-94.
Jaafar M. Review on poly-methyl methacrylate as denture base materials. Malaysian Journal of Microscopy. 2018 Dec 31;14(1).
Ghermec O, Bucşe IG, Ciobanu M. Particle Size Distribution of the Coal Bottom Ash from the Large Combustion Plant. InAdvanced Engineering Forum 2015 Aug 16 (Vol. 13, pp. 210-215). Trans Tech Publications Ltd.
Kono H, Uno T, Tsujisaki H, Matsushima T, Tajima K. Nanofibrillated bacterial cellulose modified with (3-aminopropyl) trimethoxysilane under aqueous conditions: Applications to poly (methyl methacrylate) fiber-reinforced nanocomposites. ACS omega. 2020 Nov 2;5(45):29561-9.
Jasim BS, Ismail IJ. The effect of silanized alumina nano-fillers addition on some physical and mechanical properties of heat cured polymethyl methacrylate denture base material. Journal of baghdad college of dentistry. 2014;26(2):18-23.
Chaijareenont P, Takahashi H, Nishiyama N, Arksornnukit M. Effect of different amounts of 3-methacryloxypropyltrimethoxysilane on the flexural properties and wear resistance of alumina reinforced PMMA. Dental Materials Journal. 2012 Jul 30;31(4):623-8.
Arenas-Arrocena MC, Argueta-Figueroa L, García-Contreras R, Martínez-Arenas O, Camacho-Flores B, del Pilar Rodriguez-Torres M, De la Fuente-Hernández J, Acosta-Torres LS. New trends for the processing of poly (methyl methacrylate) biomaterial for dental prosthodontics. Acrylic Polymers in Healthcare. 2017 Nov 2;10:43-74.
Nandal S, Ghalaut P, Shekhawat H, Gulati MS. New era in denture base resins: a review. Dental Journal of Advance Studies. 2013 Dec;1(03):136-43.
Xie Y, Cai S, Hou Z, Li W, Wang Y, Zhang X, Yang W. Surface hydrophobic modification of microcrystalline cellulose by poly (methylhydro) siloxane using response surface methodology. Polymers. 2018 Dec 3;10(12):1335.
Kubiak KJ, Wilson MC, Mathia TG, Carval P. Wettability versus roughness of engineering surfaces. Wear. 2011 Jun 3;271(3-4):523-8.
Żelaziński T, Słoma J, Skudlarski J, Ekielski A. The rape pomace and microcrystalline cellulose composites made by press processing. Sustainability. 2020 Feb 11;12(4):1311.
Jang DE, Lee JY, Jang HS, Lee JJ, Son MK. Color stability, water sorption and cytotoxicity of thermoplastic acrylic resin for non metal clasp denture. The journal of advanced prosthodontics. 2015 Aug 1;7(4):278-87.
Zidan S, Silikas N, Haider J, Yates J. Long-term sorption and solubility of zirconia-impregnated PMMA nanocomposite in water and artificial saliva. Materials. 2020 Aug 24;13(17):3732.
Polat TN, Karacaer Ö, Tezvergil A, Lassila LV, Vallittu PK. Water sorption, solubility and dimensional changes of denture base polymers reinforced with short glass fibers. Journal of biomaterials applications. 2003 Apr;17(4):321-35.
Monem ZM, Hamad QA, Oleiwi JK. Density and water absorption properties of PMMA reinforced by peanut and walnut shells powders used in dental applications. The Iraqi journal for mechanical and materials engineering. 2021;21(1):46-53.
Oleiwi JK, Salih SI, Fadhil HS. Water absorption and thermal properties of PMMA reinforced by natural fibers for denture applications. International Journal of Mechanical and Production Engineering Research and Development. 2018 Jun;8(3):1105-16.
Venkateshwaran N, ElayaPerumal A, Jagatheeshwaran MS. Effect of fiber length and fiber content on mechanical properties of banana fiber/epoxy composite. Journal of Reinforced Plastics and Composites. 2011 Oct;30(19):1621-7.
Arikan A, Ozkan YK, Arda T, Akalin B. An in vitro investigation of water sorption and solubility of two acetal denture base materials. European Journal of Prosthodontics and Restorative Dentistry. 2005 Sep 1;13(3):119.
Asar NV, Albayrak H, Korkmaz T, Turkyilmaz I. Influence of various metal oxides on mechanical and physical properties of heat-cured polymethyl methacrylate denture base resins. The journal of advanced prosthodontics. 2013 Aug;5(3):241-7.
A Hasab A, R Kholy M, I Bahnassawy H. Effect of reinforcement of acrylic resin by nanosilver and nanogold on water sorption and solubility. Al-Azhar Journal of Dental Science. 2018 Apr 1;21(2):155-
