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Fracture Resistance of Fiber-reinforced Vs. Non-fiber-reinforced Composite Molar Crowns

Overview
Journal Clin Oral Investig
Specialty Dentistry
Date 2003 Jun 24
PMID 12820038
Citations 4
Authors
M Behr
M Rosentritt
D Latzel
G Handel
Affiliations
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Abstract

Unlabelled: This study compared fracture resistance of fiber-reinforced and non-fiber-reinforced composite molar crowns under simulated oral stress conditions. Three groups of fiber-reinforced composite crowns were constructed using one polyethylene fiber (belleGlass/Connect) and two glass fiber reinforcement systems (Sculpture/FiberKor, Targis/Vectris). The non-fiber-reinforced crowns based on the facing material alone: Sculpture, Targis or belleGlass. Additionally, crowns were made of the non-reinforced composite Artglass. Each group consisted of eight crowns. All crowns were luted to human molars and exposed to thermal cycling and mechanical loading (6000 x 5 degrees C/55 degrees C; 1.2 x 10(6x)50 N; 1.66 Hz). The fracture resistance was measured using a Zwick universal testing machine.

Results: The non-reinforced Artglass crowns demonstrated the highest fracture resistance, significantly higher than the resistance shown with belleGlass, belleGlass/Connect or Targis. Artglass showed an extremely wide distribution of values, however. No statistically significant differences were found between the reinforced and non-reinforced composite crowns of Vectris/Targis, FiberKor/Sculpture or Connect/belleGlass although the reinforced crowns showed a tendency towards higher values. The fracture resistance values scattered markedly more for the reinforced crowns, and their lowest fracture values also reached the level of the lowest non-reinforced crowns. The small distribution of fracture values for the non-reinforced crowns indicates that they will be less susceptible for manufacturing faults and more reliable under clinical conditions.

Conclusions: RESULTS of this study suggest that single molar composite crowns (tested in this study) do not benefit from fiber-reinforcement.

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References
1.
Freilich M, Karmaker A, Burstone C, Goldberg A . Development and clinical applications of a light-polymerized fiber-reinforced composite. J Prosthet Dent. 1998; 80(3):311-8. DOI: 10.1016/s0022-3913(98)70131-3. View
2.
Swift Jr E, Cloe B, Boyer D . Effect of a silane coupling agent on composite repair strengths. Am J Dent. 1994; 7(4):200-2. View
3.
Rosentritt M, Plein T, Kolbeck C, Behr M, Handel G . In vitro fracture force and marginal adaptation of ceramic crowns fixed on natural and artificial teeth. Int J Prosthodont. 2001; 13(5):387-91. View
4.
Loose M, Rosentritt M, Leibrock A, Behr M, Handel G . In vitro study of fracture strength and marginal adaptation of fibre-reinforced-composite versus all ceramic fixed partial dentures. Eur J Prosthodont Restor Dent. 1999; 6(2):55-62. View
5.
Behr M, Rosentritt M, Handel G . Fiber-reinforced composite crowns and FPDs: a clinical report. Int J Prosthodont. 2003; 16(3):239-43. View