Autopolimerizovani poli(metilmetakrilat) ojačan nanočesticama aluminijum trioksida

  • Sebastian Baloš University of Novi Sad, Faculty of Technical Sciences, Department of Production Engineering, Novi Sad, Serbia
  • Branislava Petronijević-Šarčev University of Novi Sad, Faculty of Medicine, Department of Dentistry, Novi Sad, Serbia
  • Ivan Šarčev University of Novi Sad, Faculty of Medicine, Department of Dentistry, Novi Sad, Serbia
  • Siniša Mirković University of Novi Sad, Faculty of Medicine, Department of Dentistry, Novi Sad, Serbia
  • Branka Pilić University of Novi Sad, Faculty of Technology, Department of Materials Engineering, Novi Sad, Serbia
  • Tatjana Baloš Dental Clinic “Dentalium”, Novi Sad, Serbia
  • Petar Janjatović University of Novi Sad, Faculty of Technical Sciences, Department of Production Engineering, Novi Sad, Serbia
DOI: https://doi.org/10.2298/VSP200508077B
Ključne reči: akrilati;, kalorimetrija, diferencijalno skenirajuća;, zubna proteza, podlaganje;, elastičnost;, materijali, testiranje;, koloidi;, polimetilmetakrilat;, stres, mehanički

Sažetak


Uvod/Cilj. Mehaničke osobine, u najvećoj meri savojna čvrstoća, hladno polimerizovanih akrilata za reparaturu proteza, manja je u odnosu na toplo polimerizovane akrilate. Taj paradoks može biti rešen upotrebom nano čestica, što je bio cilj ovog rada. Metode. Tečna komponenta komercijalnog autopolimerizujućeg polimetilmetakrilata za podlaganje proteza modifikovana je sa 0,05%, 0,2% i 1,5% (wt) hidrofobnim Al2O3 nanočesticama promera 13 nm, testiranih merenjem zeta potencijala. Te mešavine, zajedno sa nemodifikovanom tečnom komponentom, pomešane su sa prahom kako bi se dobili uzorci za ispitivanje. Izvršeno je ispitivanje savojnog modula elastičnosti i čvrstoće, uz primenu jednostruke analize varijanse (ANOVA) sa Tukey testom. Toplotne karakteristike su ispitane diferencijalnom skenirajućom kalorimetrijom, dok su površinska svojstva prelomljenih površina ispitana skenirajućim elektronskim mikroskopom i energetskom disperzionom analizom. Rezultati. Statistički značajno povećanje savojne čvrstoće dobijeno je samo kod uzoraka sa 0,2% nanočestica, dok je to u slučaju savojnog modula elastičnosti nađeno kod uzoraka sa 0,05% i 0,2% nanočestica. Povećanje sadržaja nanočestica na 1,5% doprinosilo je pojavi aglomerata, što je negativno uticalo na mehaničke osobine. Povećanje temperature ostakljivanja postignuto je kod najefikasnijih koncentracija nano Al2O3 od 0,05% i 0,2%. Zaključak. Za najveći stepen povećanja mehaničkih osobina hladno-polimerizujućeg polimetilmetakrilata potreban je sadržaj od 0,2% nanočestica Al2O3 promera 13 nm.

Reference

Tallgren A. The continuing reduction of the residual alveolar ridges in complete denture wearers: A mixed-longitudinal study covering 25 years, 1972. J Prosthet Dent 2003; 89(5): 427‒35.

Stamenković D, Obradović-Đuričić K, Beloica D, Leković V, Ivanović V, Pavlović G, et al. Dental materials. Belgrade: Zavod za udžbenike i nastavna sredstva; 2003. (Serbian)

Jerolimov V. The basics of dental materials. Zagreb: School of Dental Medicine University of Zagreb: 2005. (Croatian)

Balos S, Pilic B, Markovic D, Pavlicevic J, Luzanin O. Poly(methyl-methacrylate) nanocomposites with low silica ad-dition. J Prosthet Den 2014; 111(4): 327–34.

Vojdani M, Khaledi AAR. Transverse Strength of Reinforced Denture Base Resin with Metal Wire and E-Glass Fibers. Front Dent 2006; 3(4): 159‒66.

Carlos NB, Harrison A. The effect of untreated UHMWPE beads on some properties of acrylic resin denture base materi-al. J Dent 1997; 25(1): 59–64.

Vuorinen AM, Dyer SR, Lassila LV, Vallittu PK. Effect of rig-id rod polymer filler on mechanical properties of poly methyl methacrylate denture base material. Dent Mater 2008; 24(5): 708–13.

Ayad NM, Badawi MF, Fatah AA. Effect of reinforcement of high-impact acrylic resin with zirconia on some physical and mechanical properties. Arch Oral Res 2008; 4(3): 145–51.

Ellakwa AE, Morsy MA, El-Sheikh AM. Effect of aluminum oxide addition on the flexural strength and thermal diffusivity of heat-polymerized acrylic resin. J Prosthodont 2008; 17(6): 439–44.

Fortulan CA, de Souza DPF. Microstructural evolution of the Al2O3–ZrO2 composite and its correlation with electrical con-ductivity. Mater Res 1999; 2(3): 205–10.

Marti A. Inert bioceramics (Al2O3, ZrO2) for medical applica-tion. Injury Int J Care Injured 2000; 31(Suppl 4): 33–6.

Santos C, Souza RC, Daguano JKMF, Elias CN, Rogero SO. De-velopment of Al2O3–ZrO2 bioceramic composites. Salvador, Brazil: 51 Congresso Brasileiro de Ceramica; 2007, June 3‒6.

Balos S, Pilic B, Petrovic Dj, Petronijevic B, Sarcev I. Flexural strength and modulus of autopolimerized poly(methyl methac-rylate) with nanosilica. Vojnosanit Pregl 2018; 75(6): 564–69.

Lee SY, Lai, YL, Hsu, TS. Influence of polymerization condi-tions on monomer elution and microhardness of autopolymer-ized polymethyl methacrylate resin. Eur J Oral Sci 2002; 110(2): 179‒83.

Fletcher AM, Purnaveja S, Amin WM, Ritchie GM, Moradians S, Dodd AW. The Level of Residual Monomer in Self curing den-ture Base Materials. J Dent Res 1983; 62(2): 118‒20.

Lamb DJ, Ellis B, Priestley D. The effects of process variables on levels of residual monomer in autopolymerizing dental acrylic resin. J Dent 1983; 11(1): 80–8.

Balos S, Balos T, Sidjanin L, Markovic D, Pilic B, Pavlicevic J. Study of PMMA biopolymer properties treated with micro-wave energy. Mater Plast 2011; 48(2): 127‒31.

Balos S, Balos T, Sidjanin L, Markovic D, Pilic B, Pavlicevic J. Flexural and impact strength of microwave treated autopo-limerized Poly(Methyl-methacrylate). Mater Plast 2009; 46(3): 261-65.

Fragiadakis D, Pissis P, Bokobza L. Glass transition and molec-ular dynamics in poly (dimethylsiloxane)/silica nanocompo-sites. Polymer 2005; 46(16): 6001‒8.

Bera O, Pavlicevic J, Jovicic M, Stoiljkovic D, Pilic B, Radicevic R. The Influence of nanosilica on styrene free radical polymeriza-tion kinetics. Polym Composite 2011; 33(2): 262‒66.

Elshereksi NW, Mohamed SH, Arifin A, Mohd Ishak ZA. Effect of filler incorporation on the fracture toughness properties of denture base poly(methyl methacrylate). J Phys Sci 2009; 20(2): 1–12.

Objavljeno
2022/01/25
Broj časopisa
Vol. 78 Br. 12 (2021): Vojnosanitetski pregled
Rubrika
Kratko saopštenje