Open Access, Peer-reviewed, Quarterly
pISSN 0301-2875
eISSN 2005-3789
    J Korean Acad Prosthodont. 2013 Oct;51(4):284-291. Korean.
    Published online Oct 30, 2013.
    https://doi.org/10.4047/jkap.2013.51.4.284
    Copyright © 2013 The Korean Academy of Prosthodontics
    Original Article

    Comparison of metal wire reinforcement and glass fiber reinforcement in repaired maxillary complete denture

    Jung-Ie Lee, DDS, Jae-Young Jo, DDS, MSD, Mi-Jung Yun, DDS, MSD, PhD, Young-Chan Jeon, DDS, MSD, PhD, Chang-Mo Jeong, DDS, MSD, PhD and Jung-Bo Huh, DDS, MSD, PhD
      • Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan, 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, Email: neoplasia96@hanmail.net
    Received September 02, 2013; Revised September 16, 2013; Accepted September 27, 2013.

    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 compared fracture strength and fracture modes between metal wire reinforcement and glass fiber reinforcement in repaired maxillary complete denture.

    Materials and methods

    In this study, fracture was reproduced on center of maxillary complete dentures and the denture was repaired with auto-polymerizing resin. The experimental groups (n = 10) were subjected to the following condition: without reinforcing material (control group), reinforcing with metal wire (W group), reinforcing with glass fiber pre-impregnated with light-curing resin (SES MESH, INNO Dental Co., Yeoncheon, Korea, G group). 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 Kruskal-wallis test and the Mann-whitney U test were performed to identify statistical differences at α=.05.

    Results

    W group showed the highest value of fracture strength, there was no significant difference (P>.05) between control group and G group. Control group and W group showed anteroposterior fracture mainly, group W showed adhesive fracture of denture base and reinforcing material.

    Conclusion

    In limitation of this study, the glass fiber did not improve the fracture strength of repaired maxillary complete denture, and adhesive failure was occurred along the lines of glass fiber.

    Keywords
    Glass fiber; Fracture of denture; Denture repair

    Figures

    Fig. 1
    Edentulous model with recess for ball attachment.

    Fig. 2
    Location of reinforcement materials in midline fracture of maxillary complete denture. A: without reinforcement (control group), B: with metal wire reinforcement (group W), C: with glass fiber reinforcement (group G).

    Fig. 3
    Flexural load test using ball attachment.

    Fig. 4
    Flexural load test using ball attachment.

    Fig. 5
    Fracture mode of denture. A: anteroposterior fracture in control group, B: anterior region fracture in control group, C: anteroposterior fracture in group W, D: fracture along the lines with reinforcement in group G.

    Tables

    Table 1
    Mean and Standard deviation of fracture strength (kgf) and Kruskal-Wallis test

    Table 2
    Mann-Whitney U test result of fracture strength (P value)

    Table 3
    Fracture mode of dentures (n = 10 in each group)

    Notes

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

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    MeSH Terms
    Adhesives
    Denture Bases
    Denture Repair
    Denture, Complete*
    Dentures
    Glass*
    Korea
    Metrics
    Share
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    Tables
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