Citation Information :
Suma K, Sajidabegum S, Vignesh V, Bhuvaneshkumar D. Chemical Structure and Physical Properties of Heat-cured Poly(methyl methacrylate) Resin Processed with Cycloaliphatic Comonomer: An In Vitro Study. J Contemp Dent Pract 2020; 21 (3):285-290.
Aim: The purpose of this in vitro research is to chemically characterize polymethyl methacrylate (PMMA) processed with 10% and 20% (v/v) tricyclodecane dimethanol diacrylate (TCDDMDA) comonomer. It also aimed to assess the degree of conversion (DC) and glass transition temperature (Tg) of the formed copolymers. Materials and methods: The experimental groups were processed with the TCDDMDA comonomer (10% and 20% v/v), whereas the control group was processed only with the methyl methacrylate monomer. The copolymerization was studied by nuclear magnetic resonance (NMR) spectroscopy. The surface characteristics and composition (wt%) were studied by field-emission scanning electron microscopy (FESEM) and energy dispersive X-ray (EDX) spectroscopy (cuboidal specimen; 5 mm × 5 mm × 3 mm), respectively. The DC and Tg of the formed copolymers (powdered form) were analyzed by Fourier transform infrared spectroscopy and differential scanning calorimetry, respectively. One-way analysis of variance with post hoc Bonferroni test was used to compare the mean values of DC% and Tg among the groups. Results: The newly formed copolymer [P(MMA-co-TCDDMDA)] was chemically characterized by NMR and FESEM-EDX. The DC and Tg of the experimental groups were higher than the control. Tricyclodecane dimethanol diacrylate at 20% (v/v) concentration showed the highest DC and Tg. Conclusion: The addition of TCDDMDA comonomer improved the DC and Tg of the formed copolymer. Clinical significance: The P(MMA-co-TCDDMDA) copolymer is expected to improve the mechanical properties and biocompatibility of the denture base acrylic resin. This would result in improved denture quality and durability, thereby, imparting a better quality of life to the geriatric population.
Li P, Xu R, Wang W, et al. Thermosensitive poly(N-isopropylacrylamide-co-glycidyl methacrylate) microgels for controlled drug release. Colloids Surf B Biointerfaces 2013;101(1):251–255. DOI: 10.1016/j.colsurfb.2012.07.009.
Brozek R, Koczorowski R, Rogalewicz R, et al. Effect of denture cleansers on chemical and mechanical behavior of selected soft lining materials. Dent Mater 2011;27(3):281–290. DOI: 10.1016/j.dental.2010.11.003.
Saitoh S, Sasaki K, Nezu T, et al. Viscoelastic behavior of commercially available tissue conditioners under compression. Dent Mater J 2010;29(4):461–468. DOI: 10.4012/dmj.2009-130.
Bural C, Aktas E, Deniz G, et al. Effect of leaching residual methyl methacrylate concentrations on in vitro cytotoxicity of heat polymerized denture base acrylic resin processed with different polymerization cycles. J Appl Oral Sci 2011;19(4):306–312. DOI: 10.1590/S1678-77572011005000002.
Borelli B, Zarone F, Rivieccio V, et al. Polyacrylic resins regulate transcriptional control of interleukin-6, gp80, and gp130 genes in human gingival fibroblasts. J Oral Sci 2017;59(1):87–91. DOI: 10.2334/josnusd.16-0388.
Basso MF, Giampaolo ET, Vergani CE, et al. Influence of microwave disinfection on the dimensional stability of denture reline polymers. J Prosthodont 2010;19(5):364–368. DOI: 10.1111/j.1532-849X.2010.00583.x.
Ruyter IE, Svedsen SA. Remaining methacrylate groups in composite restorative materials. Acta Odontol Scand 1978;40:359–376. DOI: 10.3109/00016358209024081.
Asmussen E. Restorative resins: hardness and strength vs. quantity of remaining double bonds. Scand J Dent Res 1982;90(6):484–489. DOI: 10.1111/j.1600-0722.1982.tb00766.x.
Ferracane JL, Greener EH. The effect of resin formulation on the degree of conversion and mechanical properties of dental restorative resins. J Biomed Mater Res 1986;20(1):121–131. DOI: 10.1002/jbm.820200111.
McCabe JF, Wilson HJ. Polymers in dentistry. J Oral Rehabil 1974;1(4):335–351. DOI: 10.1111/j.1365-2842.1974.tb01478.x.
Phoenix RD, Mansueto MA, Ackerman NA, et al. Evaluation of mechanical and thermal properties of commonly used denture base resins. J Prosthodont 2004;13(1):17–27. DOI: 10.1111/j.1532-849X.2004.04002.x.
Urban VM, Machado AL, Alves MO, et al. Glass transition temperature of hard chairside reline materials after post-polymerisation treatments. Gerodontology 2010;27(3):230–235. DOI: 10.1111/j.1741-2358.2009.00312.x.
Rodriguez LS, Paleari AG, Giro G, et al. Chemical characterization and flexural strength of a denture base acrylic resin with monomer 2-tert-butylaminoethyl methacrylate. J Prosthodont 2013;22(4):292–297. DOI: 10.1111/j.1532-849X.2012.00942.x.
Ajay R, Suma K, Asharaf Ali S. Monomer modifications of denture base acrylic resin: a systematic review and meta-analysis. J Pharm Bioall Sci 2019;11(Suppl 2):S112–S125. DOI: 10.4103/JPBS.JPBS_34_19.
Ajay R, Suma K, JayaKrishnakumar S, et al. Chemical characterization of denture base resin with a novel cycloaliphatic monomer. J Contemp Dent Pract 2019;20(8):940–946. DOI: 10.5005/jp-journals-10024-2634.
Khanlou HM. FE-SEM and EDX characterization of sand blasted and sulfuric acid etched of novel biomaterial (Ti13Nb13Zr). Aust J Basic Appl Sci 2012;6(6):125–131.
Leão RS, de Moraes SLD, Aquino KAS, et al. Effect of pressure, post-Pressing time, and polymerization cycle on the degree of conversion of thermoactivated acrylic resin. Int J Dent 2018; 5743840. DOI: 10.1155/2018/5743840.
He J, Soderling E, Osterbald M, et al. Synthesis of methacrylate monomers with antibacterial effects against S. Mutans. Molecules 2011;16(11):9755–9763. DOI: 10.3390/molecules16119755.
Ayaz EA, Durkan R. Influence of acrylamide monomer addition to the acrylic denture base resins on mechanical and physical properties. Int J Oral Sci 2013;5(4):229–235. DOI: 10.1038/ijos.2013.69.
Jerolimov V, Jagger RG, Millward PJ. Effect of cross-linking chain length on glass transition of a dough moulded poly(methylmethacrylate) resins. Acta Stomatol Croat 1994;28(1):3–9.
Jerolimov V, Jagger RG, Millward PJ. Effect of the curing cycle on acrylic denture base glass transition temperatures. J Dent 1991;19(4):245–248. DOI: 10.1016/0300-5712(91)90128-L.
Hayashi R, Kubota T, Mega J. Application of fluoroalkyl acrylate monomer for a denture base material. Int J Oral-Med Sci 2003;1(2): 124–129. DOI: 10.5466/ijoms.1.124.
Kubota T, Kobayashi M, Hayashi R, et al. Influence of carbon chain length of fluorinated alkyl acrylate on mechanical properties of denture base resin. Int J Oral-Med Sci 2005;4(2):92–96. DOI: 10.5466/ijoms.4.92.
Spasojevic P, Zrilic M, Panic V, et al. The Mechanical Properties of a Poly(methyl methacrylate) Denture Base Material Modified with Dimethyl Itaconate and Di-n-butyl Itaconate. Int J Polym Sci 2015; 1–9. DOI: 10.1155/2015/561012.
Spasojevic P, Panic V, Seslija S, et al. Poly(methyl methacrylate) denture base materials modified with ditetrahydro furfuryl itaconate: significant applicative properties. J Serb Chem Soc 2015;80(9): 1177–1192. DOI: 10.2298/JSC150123034S.