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Related articles

VOLUME 16 , ISSUE 4 ( April, 2015 ) > List of Articles

RESEARCH ARTICLE

Finite Element Analysis of the Endodontically-treated Maxillary Premolars restored with Composite Resin along with Glass Fiber Insertion in Various Positions

Elmira Jafari Navimipour, Fatemeh Sadat Mirhashemi

Citation Information : Navimipour EJ, Mirhashemi FS. Finite Element Analysis of the Endodontically-treated Maxillary Premolars restored with Composite Resin along with Glass Fiber Insertion in Various Positions. J Contemp Dent Pract 2015; 16 (4):284-290.

DOI: 10.5005/jp-journals-10024-1677

Published Online: 01-09-2015

Copyright Statement:  Copyright © 2015; The Author(s).


Abstract

Aim

This study evaluated the effect of three methods of glass fiber insertion on stress distribution pattern and cusp movement of the root-filled maxillary premolars using finite element method (FEM) analysis.

Materials and methods

A three-dimensional (3D) FEM model of a sound upper premolar tooth and four models of root-filled upper premolars with mesiocclusodistal (MOD) cavities were molded and restored with: (1) Composite resin only (NF); (2) Composite resin along with a ribbon of glass fiber placed in the occlusal third (OF); (3) Composite resin along with a ribbon of glass fiber placed circumferentially in the cervical third (CF), and (4) Composite resin along with occlusal and circumferential fibers (OCF). A static vertical load was applied to calculate the stress distributions. Structural analysis program by Solidworks were used for FEM analysis. Von-Mises stress values and cusp movements induced by occlusal loading were evaluated.

Results

Maximum Von-Mises stress of enamel occurred in sound tooth, followed by NF, CF, OF and OCF. Maximum Von- Mises stress of dentin occurred in sound tooth, followed by OF, OCF, CF and NF. Stress distribution patterns of OF and OCF were similar. Maximum overall stress values were concentrated in NF. Although stress distribution patterns of NF and CF were found as similar, CF showed lower stress values. Palatal cusp movement was more than buccal cusp in all of the models.

Conclusion

The results of our study indicated that while the circumferential fiber had little effect on overall stress concentration, it provided a more favorable stress distribution pattern in cervical region. The occlusal fiber reduced the average stress in the entire structure but did not reduce cuspal movement.

Clinical significance

Incorporating glass fiber in composite restorations may alter the stress state within the structure depending on fiber position.

How to cite this article

Navimipour EJ, Firouzmandi M, Mirhashemi FS. Finite Element Analysis of the Endodonticallytreated Maxillary Premolars restored with Composite Resin along with Glass Fiber Insertion in Various Positions. J Contemp Dent Pract 2015;16(4):284-290.

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  1. Endodontically treated teeth: characteristics and considerations to restore them. J Prosthodont Res 2011;55:69-74.
  2. Restoring endodontically treated teeth with posts and cores—a review. Quintessence Int 2005;36:737-746.
  3. Remaining tooth structure associated with various preparation designs for the endodontically treated maxillary second premolar. Eur J Prosthodont Restor Dent 2005;13:57-64.
  4. Fracture resistance of teeth with class II bonded amalgam and new tooth-colored restorations. Oper Dent 2003;28:501-507.
  5. Effect of bonded restorations on the fracture resistance of root filled teeth. Int Endod J 2006;39:900-904.
  6. Influence of restorative technique on the biomechanical behavior of endodontically treated maxillary premolars. Part II: strain measurement and stress distribution. J Prosthet Dent 2008;99:114-122.
  7. Clinical evaluation of two posterior composite resins retained with bonding agents. J Prosthet Dent 1989;62:627-632.
  8. Benefits and disadvantages of tooth-coloured alternatives to amalgam. J Dent 1997;25:459-473.
  9. Effect of crosssectional design on the modulus of elasticity and toughness of fiber-reinforced composite materials. J Prosthet Dent 2005;94:219-226.
  10. Evaluation of a new fiber-reinforced resin composite. J Biomed Mater Res B Appl Biomater 2006;76:184-189.
  11. Stress distribution of inlay-anchored adhesive fixed partial dentures: a finite element analysis of the influence of restorative materials and abutment preparation design. J Prosthet Dent 2002;87:516-527.
  12. The effect of fibre insertion on fracture resistance of root filled molar teeth with MOD preparations restored with composite. Int Endod J 2005;38:73-80.
  13. Reinforcement effect of polyethylene fibre in root-filled teeth: comparison of two restoration techniques. Int Endod J 2006;39:136-142.
  14. Marginal adaptation and fracture resistance of root-canal treated mandibular molars with intracoronal restorations: effect of thermocycling and mechanical loading. J Adhes Dent 2010;12:279-286.
  15. Effect of a new restoration technique on fracture resistance of endodontically treated teeth. Dent Traumatol 2008;24:214-219.
  16. Fracture resistance of endodontically-treated maxillary premolars restored with composite resin along with glass fiber insertion in different positions. J Dent Res Dent Clin Dent Prospects 2012;6:125-130.
  17. The effect of three composite fiber insertion techniques on fracture resistance of root-filled teeth. J Endod 2009;35:413-416.
  18. Initial versus final fracture of metal-free crowns, analyzed via acoustic emission. Dent Mater 2008;24:1289-1295.
  19. Can internal stresses explain the fracture resistance of cusp-replacing composite restorations? Eur J Oral Sci 2005;113:443-448.
  20. Fracture resistance and stress distribution in endodontically treated maxillary premolars restored with composite resin. J Prosthodont 2008;17:114-119.
  21. The influence of cavity design and glass fiber posts on biomechanical behavior of endodontically treated premolars. J Endod 2008;34:1015-1019.
  22. Conservative restoration of severely damaged endodontically treated pre-molar teeth: a FEM study. Clin Oral Investig 2011;15:403-408.
  23. Measurement of Poisson's ratio of dental composite restorative materials. Biomaterials 2004;25:2455-2460.
  24. The elastic moduli across various types of resin/dentin interfaces. Dent Mater 2008;24:1102-1106.
  25. Fundamentals of material science. In: craig's restorative dental materials. 13th ed. Elsevier; 2012. p. 33-81.
  26. Maximal bite force with centric and eccentric load. J Oral Rehabil 1982;9:445-450.
  27. 3D-finite element analyses of cusp movements in a human upper premolar, restored with adhesive resin-based composites. J Biomech 2001;34:1269-1277.
  28. Load bearing capacity of fibre-reinforced and particulate filler composite resin combination. J Dent 2006;34:179-184.
  29. Effect of fiber position and orientation on fracture load of fiber-reinforced composite. Dent Mater 2004;20:947-955.
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