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

Hyun-Sang Yoo; Su-Jin Sung; Jae-Young Jo; Do-Chan Lee; Jung-Bo Huh; Chang-Mo Jeong

doi:10.4047/jkap.2012.50.4.279

Journal List > J Korean Acad Prosthodont > v.50(4) > 1034716

Go to TopGo to Top Go to BottomGo to Bottom

TOOLS

Yoo, Sung, Jo, Lee, Huh, and Jeong: Effect of location of glass fiber pre-impregnated with light-curing resin on the fracture strength and fracture modes of a maxillary complete denture

Original Article

The Journal of Korean Academy of Prosthodontics

The Journal of Korean Academy of Prosthodontics 2012; 50(4): 279-284.

Published online: 31 October 2012

DOI: https://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

Hyun-Sang Yoo, DDS, MSD^1,^†, Su-Jin Sung, DDS, MSD^1,^†, Jae-Young Jo, DDS, MSD¹, Do-Chan Lee², Jung-Bo Huh, DDS, MSD, PhD¹, Chang-Mo Jeong, DDS, MSD, PhD¹

¹Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan, Korea.

²One Dental Lab., Ltd, Pusan, Korea.

Corresponding Author: Jung-Bo Huh. Department of Prosthodontics, School of dentistry, Pusan National University, Beomeo-ri, Mulgeum-eup, Yangsan, 626-870, Korea. +82 55 360 5130: neoplasia96@hanmail.net

Equal contributor:

†These authors contributed equally to this work.

Received 17 September 2012 Revised 10 October 2012 Accepted 11 October 2012

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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., Yeoncheon-gun, 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

Figures and Tables

Fig. 1

SES MESH used in this study. 85 - 90% of the mesh is made up of a glass fiber.

Fig. 2

Ball attachment for flexural load test.

Fig. 3

Edentulous model with recess for ball attachment.

Fig. 4

Location of SES MESH of the maxillary complete denture: (A) the anterior ridge lap region, (B) the rugae region, (C) the middle region, (D) full coverage, (E) without reinforcement.

Fig. 5

Flexural load test using ball attachment.

Fig. 6

Fracture mode of dentures : (A) anteroposterior fracture in group A, (B) anterior fracture in group B, (C) partial fracture on center area in group C, (D) posterior fracture in group D, (E) no significant fracture line in group E.

Table 1

Mean fracture strength of the maxillary acrylic resin denture reinforced at several locations (n = 6)

Table 2

Fracture mode of dentures (n = 6)

Notes

This study was supported by Clinical Research Grant, Pusan National University Dental Hospital (2012).

References

1. 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. 20:366–371.

2. Smith LT, Powers JM, Ladd D. Mechanical properties of new denture resins polymerized by visible light, heat, and microwave energy. Int J Prosthodont. 1992. 5:315–320.

3. Jeong CM. A comparative study on the several metal reinforcement methods of maxillary complete acrylic resin denture base. J Korean Acad Prosthodont. 1996. 34:363–372.

4. Morris JC, Khan Z, von Fraunhofer JA. Palatal shape and the flexural strength of maxillary denture bases. J Prosthet Dent. 1985. 53:670–673.

5. Lambrecht JR, Kydd WL. A functional stress analysis of the maxillary complete denture base. J Prosthet Dent. 1962. 12:865–872.

6. Vallittu PK, Lassila VP, Lappalainen R. Evaluation of damage to removable dentures in two cities in Finland. Acta Odontol Scand. 1993. 51:363–369.

7. Vallittu PK, Lassila VP. Reinforcement of acrylic resin denture base material with metal or fibre strengtheners. J Oral Rehabil. 1992. 19:225–230.

8. Narva KK, Lassila LV, Vallittu PK. The static strength and modulus of fiber reinforced denture base polymer. Dent Mater. 2005. 21:421–428.

9. Vallittu PK. Glass fiber reinforcement in repaired acrylic resin removable dentures: preliminary results of a clinical study. Quintessence Int. 1997. 28:39–44.

10. 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. 14:219–224.

11. Pollet JC, Burns SJ. An analysis of slow crack propagation data in PMMA and brittle materials. Int J Fract. 1977. 13:775–786.

12. Ezrin M. Failure analysis and test procedures. Plastics Failure Guide. 1996. Cincinnati, OH, USA: Hanser Gardner Publ;210–225.

13. Huang GC, Lee CH, Lee JK. Thermal and mechanical properties of short fiber-reinforced epoxy composites. Polym Korea. 2009. 33:530–536.

14. Shin IJ, Lee DJ. Reinforcing characteristics of ductile short-Fiber in brittle matrix composites. Trans KSME A. 2000. 24:250–258.

15. Jang J, Han S. Mechanical properties of glass-bre mat/PMMA functionally gradient composite. Trans Korean Soc Mech Eng. A. 1999. 30:1045–1053.

16. Gurbuz O, Unalan F, Dikbas I. Comparative study of the fatigue strength of five acrylic denture resins. J Mech Behav Biomed Mater. 2010. 3:636–639.

17. Michael CG, Javid NS, Colaizzi FA, Gibbs CH. Biting strength and chewing forces in complete denture wearers. J Prosthet Dent. 1990. 63:549–553.

TOOLS

Similar articles