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:: Volume 31, Issue 3 (7-2019) ::
J Iran Dent Assoc 2019, 31(3): 177-181 Back to browse issues page
Comparison of Water Sorption of Two Injection Acrylic Resins with a Conventional Pressure-Packed Acrylic Resin
Ehsan Ghasemi1 , Ramin Mosharraf2 , Siavash Mirzaei * 3
1- Assistant Professor, Dental Material Research Center, Department of Prosthodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
2- Professor, Dental Materials Research Center, Department of Prosthodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
3- Dentist, Private Office, Isfahan, Iran , dr.siavash.mirzaei@gmail.com
Abstract:   (3164 Views)
Background and Aim: Water sorption is one of the most important properties that affects the quality of a prosthesis, and subsequently, the quality of treatment, and pa-tient’s quality of life. The aim of this study was to determine and compare the water sorption of two types of poly methyl methacrylate (PMMA) using the injection-molding systems with a traditional acrylic resin base material.
Materials and Methods: In this in vitro, experimental study, three groups of PMMA (n=10), consisting of two groups of injection molded PMMA samples (Vertex Castavar-ia and Ivo-Base High-Impact) were used for two different injection molding techniques and one group of conventional pressure-packed PMMA (Meliodent Heat Cure) was used for the conventional pressure-packed technique. After processing, 30 specimens were stored in distilled water at 37°C for 30 days. The water sorption test was then performed. Statistical analysis was carried out using SPSS version 23.0 via the Krus-kal-Wallis and Mann-Whitney tests (α=0.05).
Results: The mean value of water sorption was 17.88±1.08 µg/mm3 for IvoBase spec-imens, 28.45±2.19µg/mm3 for Vertex specimens, and 21.76 ±3.26 µg/mm3 for Melio-dent specimens (P<0.001 for Ivobase-Vertex, P <0.007 for Ivobase-Meliodent, and P<0.001 for Vertex-Meliodent).
Conclusion: Water sorption of IvoBase was significantly lower than that of other ma-terials. Despite such a significant difference, all of them completely fulfilled the re-quirements of EN ISO 20795-1:2008.
Keywords: Adsorption, Injections, Polymethyl Methacrylate
Full-Text [PDF 526 kb]   (1262 Downloads)    
Type of Study: Original | Subject: Prosthodontics
References
1. Zarb G, Hobkirk J, Eckert S, Jacob R. Prosthodontic treatment for edentulous patients, complete dentures and implant-supported prostheses. 13th ed., St. Louis, Mosby Inc., 2013:133-9.
2. Pfeiffer P, Rosenbauer EU. Residual methyl methacrylate monomer, water sorption, and water solubility of hypoallergenic denture base materials. J Prosthet Dent. 2004. Jul; 92(1):72-78.
3. Craig R, Powers JM, Wataha JC. Dental materials, properties and manipulation. 8th Ed., St. Louis, Mosby Inc., 2004:121.
4. Tandon R, Gupta S, Agarwal SK. Denture base materials: from past to future. Ind J Dent Sci. 2010 March; 2(2):33-9.
5. Negrutiu M, Sinescu C, Romanu M, Pop D, Laka-tos S. Thermoplastic resins for flexible frame-work removable partial dentures. TMJ. 2005 Sep;55(3):295-99.
6. Sakaguchi RL, Powers JM. Craig's restorative dental materials. 13th ed. St. Louis: Mosby Else-vier; 2011:51-2.
7. Latief A. Sorption and solubility of a denture base acrylic (Doctoral dissertation, Cape Peninsula University of Technology).
8. Hamanaka I, Takahashi Y, Shimizu H. Mechanical properties of injection-molded thermoplastic denture base resins. Acta Odontol Scand. 2011 Mar;69(2):75-9.
9. Sepúlveda‐Navarro WF, Arana‐Correa BE, Fer-reira Borges CP, Habib Jorge J, Urban VM, Cam-panha NH. Color stability of resins and nylon as denture base material in beverages. J Prosthodont. 2011 Oct; 20:632-8.
10. Takabayashi Y. Characteristics of denture ther-moplastic resins for non-metal clasp dentures. Dent Mater J. 2010 Aug;29(4):353-61.
11. Parvizi A, Lindquist T, Schneider R, Williamson D, Boyer D, Dawson DV. Compari-son of the dimensional accuracy of injection-molded denture base materials to that of con-ventional pressurepack acrylic resin. J Prostho-dont. 2004 Jun;13(2):83-9.
12. Fueki K, Ohkubo C, Yatabe M, Arakawa I, Arita M, Ino S, et al. Clinical application of removable partial dentures using thermoplastic resin-Part I: definition and indication of non-metal clasp dentures. J Prosthodont Res. 2014 Jan;58(1):3-10.
13. Fueki K, Ohkubo C, Yatabe M, Arakawa I, Arita M, Ino S, et al. Clinical application of removable partial dentures using thermoplastic resin. Part II: material properties and clinical features of non-metal clasp dentures. J Prosthodont Res. 2014 Apr;58(2):71-84.
14. ISO 20795-1: 2008, Dentistry-Denture base pol-ymers. International Organization for Standardization.
15. Golbidi F, Taherian A. Comparison of water sorption and solubility of Acropars and Meliodent heat cure acrylic resins. J Dent Med. 2006 Apr;19(1):55-63.
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Ghasemi E, Mosharraf R, Mirzaei S. Comparison of Water Sorption of Two Injection Acrylic Resins with a Conventional Pressure-Packed Acrylic Resin. J Iran Dent Assoc 2019; 31 (3) :177-181
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Volume 31, Issue 3 (7-2019) Back to browse issues page
Journal of Iranian Dental Association

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