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http://dx.doi.org/10.4047/jkap.2012.50.4.279

Effect of location of glass fiber pre-impregnated with light-curing resin on the fracture strength and fracture modes of a maxillary complete denture  

Yoo, Hyun-Sang (Department of Prosthodontics, School of Dentistry, Pusan National University)
Sung, Su-Jin (Department of Prosthodontics, School of Dentistry, Pusan National University)
Jo, Jae-Young (Department of Prosthodontics, School of Dentistry, Pusan National University)
Lee, Do-Chan (One Dental Lab., Ltd.)
Huh, Jung-Bo (Department of Prosthodontics, School of Dentistry, Pusan National University)
Jeong, Chang-Mo (Department of Prosthodontics, School of Dentistry, Pusan National University)
Publication Information
The Journal of Korean Academy of Prosthodontics / v.50, no.4, 2012 , pp. 279-284 More about this Journal
Abstract
Purpose: This study evaluated the effect of glass fiber pre-impregnated with light-curing resin on the fracture strength and fracture modes of a maxillary complete denture. Materials and methods: Maxillary acrylic resin complete dentures reinforced with glass fiber pre-impregnated with light-curing resin (SES MESH, INNO Dental Co., Yeoncheongun, Korea) and without reinforcement were tested. The reinforcing material was embedded in the denture base resin and placed different regions (Control, without reinforcement; Group A, center of anterior ridge; Group B, rugae area; Group C, center of palate; Group D, full coverage of denture base). The fracture strength and fracture modes of a maxillary complete denture were tested using Instron test machine (Instron Co., Canton, MA, USA) at a 5.0 mm/min crosshead speed. The flexure load was applied to center of denture with a 20 mm diameter ball attachment. When fracture occurred, the fracture mode was classified based on fracture lines. The data were analyzed with one-way ANOVA at the significance level of 0.05. Results: There were non-significant differences (P>.05) in the fracture strength among test groups. Group A showed anteroposterior fracture and posterior fracture mainly, group B, C and control group showed partial fracture on center area mostly. Most specimen of group D showed posterior fracture. Conclusion: The location and presence of the fiber reinforcement did not affect the fracture strength of maxillary complete denture. However, reinforcing acrylic resin denture with glass fiber has a tendency to suppress the crack.
Keywords
Glass fiber; Fracture of denture; Reinforcement of denture;
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  • Reference
1 Lambrecht JR, Kydd WL. A functional stress analysis of the maxillary complete denture base. J Prosthet Dent 1962;12:865-72.   DOI
2 Vallittu PK, Lassila VP, Lappalainen R. Evaluation of damage to removable dentures in two cities in Finland. Acta Odontol Scand 1993;51:363-9.   DOI   ScienceOn
3 Vallittu PK, Lassila VP. Reinforcement of acrylic resin denture base material with metal or fibre strengtheners. J Oral Rehabil 1992;19:225-30.   DOI
4 Narva KK, Lassila LV, Vallittu PK. The static strength and modulus of fiber reinforced denture base polymer. Dent Mater 2005;21:421-8.   DOI   ScienceOn
5 Vallittu PK. Glass fiber reinforcement in repaired acrylic resin removable dentures: preliminary results of a clinical study. Quintessence Int 1997;28:39-44.
6 Narva KK, Vallittu PK, Helenius H, Yli-Urpo A. Clinical survey of acrylic resin removable denture repairs with glass-fiber reinforcement. Int J Prosthodont 2001;14:219-24.
7 Pollet JC, Burns SJ. An analysis of slow crack propagation data in PMMA and brittle materials. Int J Fract 1977;13:775-86.   DOI   ScienceOn
8 Ezrin M. Failure analysis and test procedures. In: Plastics Failure Guide. Cincinnati, OH, USA, Hanser Gardner Publ; 1996. p. 210-25.
9 Huang GC, Lee CH, Lee JK. Thermal and mechanical properties of short fiber-reinforced epoxy composites. Polymer(Korea) 2009;33:530-6.
10 Shin IJ, Lee DJ. Reinforcing characteristics of ductile short-Fiber in brittle matrix composites. Trans KSME A 2000;24:250-8.
11 Jang J, Han S. Mechanical properties of glass-bre mat/PMMA functionally gradient composite. Composites Part A 1999;30: 1045-53.   DOI   ScienceOn
12 Gurbuz O, Unalan F, Dikbas I. Comparative study of the fatigue strength of five acrylic denture resins. J Mech Behav Biomed Mater 2010;3:636-9.   DOI   ScienceOn
13 Michael CG, Javid NS, Colaizzi FA, Gibbs CH. Biting strength and chewing forces in complete denture wearers. J Prosthet Dent 1990;63:549-53.   DOI   ScienceOn
14 Yoshida K, Takahashi Y, Shimizu H. Effect of embedded metal reinforcements and their location on the fracture resistance of acrylic resin complete dentures. J Prosthodont 2011;20:366-71.   DOI   ScienceOn
15 Smith LT, Powers JM, Ladd D. Mechanical properties of new denture resins polymerized by visible light, heat, and microwave energy. Int J Prosthodont 1992;5:315-20.
16 Morris JC, Khan Z, von Fraunhofer JA. Palatal shape and the flexural strength of maxillary denture bases. J Prosthet Dent 1985;53:670-3.   DOI   ScienceOn
17 Jeong CM. A comparative study on the several metal reinforcement methods of maxillary complete acrylic resin denture base. J Korean Acad Prosthodont 1996;34:363-72.