ISSN: 1300-7734
Dil: Türkçe, İngilizce
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ORIGINAL RESEARCH ARTICLES |
An Evaluation Of The Fracture Resistance Of Four Different Restorative Materials
Emin Caner TÜMEN, DDS PhD,a Fatma ATAKUL, DDS PhDa
aDepartment of Pedodontics, Dicle University Faculty of Dentistry, DİYARBAKIR
Objective: This study was intended to determine the fracture resistance of four different materials to vertical forces, frequently used in the restoration of posterior group teeth. In our study, 60 extracted premolar teeth prepared with Class II cavities were used.
Material and Methods: Sixty caries free and unrestored premolars, extracted for periodontal and orthodontic purposes, were fixed in cold acrylic blocks and randomly divided into four groups of 15, by preparing standard approximal cavities. The restorative material Valux Plus was applied to the first group, Herculite XRV to the second, Vitremer to the third, and Chelon Silver to the fourth, all according to the manufacturers’ recommendations. The fracture resistances of the restorations were measured by using a Testometric micro-500 machine.
Results: The data obtained as a result of the measurements were statistically analysed by using One-Way ANOVA and the Post-Hoc tests. The mean fracture resistance values obtained were; 66.9113 kgf for Valux Plus, 55.2187 kgf for Herculite XRV, 51.1493 kgf for Vitremer, and 38.0633 kgf for Chelon Silver. The fracture resistance values, obtained as a result of the statistical analyses performed, are from highest to lowest: Valux Plus > Herculite XRV > Vitremer > Chelon Silver (P<0.001).
Conclusion: It was concluded from our findings that glass ionomer cements should be used less frequently in restorations in both primary and permanent posterior group teeth. However, due to their similar fracture resistance properties to those of composite resins, in terms of resistance to vertical forces and their fluoride releasing properties, resin-modified glass ionomers can be used in all restorations, particularly in children’s primary teeth; a group at high risk of caries.Keywords: Composite resins; glass Ionomer cements; fracture resistanceTurkiye Klinikleri J Dental Sci 2007, 13:97-102
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