Indian Journal of Dentistry
Volume 2, Issue 3 , Pages 61-67, September 2011

An in vitro study to compare the fracture strength and mode of fracture of endodontically treated maxillary central incisors fractured at cemento-enamel junction and restored with three different post and core systems

  • Vijay Kumar, MDS

      Affiliations

    • Reader, Tatul, Solan, Himachal Pradesh
    • Corresponding Author InformationCorrespondence: Dr. Vijay Kumar, Reader, Department of Prosthodontics, MN DAV Dental College and Hospital, Tatul, Solan, Himachal Pradesh-173223, India
    • ,
  • Harpreet Marjara, MDS

      Affiliations

    • Professor and Head, Department of Prosthodontics, MN DAV Dental College and Hospital, Tatul, Solan, Himachal Pradesh
    • ,
  • Veena Gupta, MDS

      Affiliations

    • Professor and Head, Department of Prosthodontics, AIIMS, New Delhi
    • ,
  • Hari Parkash, MDS FICD FIMFT FACD NMAMS

      Affiliations

    • Professor and Director for PG Studies, Department of Prosthodontics, ITS Dental College and Hospital, Ghaziabad, India

Received 11 August 2011; accepted 29 August 2011.

Article Outline

Abstract 

Endodontically treated teeth with loss of tooth structure from cemento-enamel junction require post and core restoration for their long-term survival. Thus, an in vitro study was conducted, in which 30 extracted human maxillary central incisors, cut from cemento-enamel junction, were divided into 3 groups of 10 teeth each and restored with fiber-reinforced composite post–core, Ti-alloy post with fiber-reinforced composite core, and Ni–Cr cast post–core following endodontic treatment. Ni–Cr cast post–core group showed highest maximum force tolerated and fracture strength followed by fiber-reinforced composite post–core group and Ti-alloy post with fiber-reinforced composite group. Maximum incident of root fracture was found in Ni–Cr post–core group, followed by Ti-alloy with fiber-reinforced composite core group, thus rendering the teeth non-treatable.

Keywords:  Fracture strength , mode of fracture , universal testing machine

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References 

  1. Sorenson JA , Engleman MJ . Effect of post adaptation on fracture resistance of endodontically treated teeth . J Prosthet Dent . 1990;64:419–424
  2. Shillingburg HT , Hobo S , Whitsett LD , Jacobi R , Brackett SE . In: Fundamentals of Fixed Prosthodontics . 3rd ed.. Chicago: Quintessence Int; 1997;p. 181–220
  3. Rosenstiel SF , Land MF , Fujimato J . In: Contemporary Fixed Prosthodontics . 3rd ed.. St. Louis: Mosby Co.; 2001;p. 272–312
  4. Dhawan P , Parkash H . Restoration of endodontically treated teeth: an overview of clinical aspects . J Ind Prost Soc . 2001;1:21–28
  5. Shillingburg HT , Kessler JC . In: Restoration of Endodontically Treated Tooth . Chicago: Quintessence Publishing Co.; 1982;p. 45–73
  6. Newburg RE , Pameijer CH . Retentive properties of post and core systems . J Prosthet Dent . 1976;36:636–637
  7. Guzy GE , Nicholls JI . In vitro comparison of intact endodontically treated teeth with and without endodontic post reinforcement . J Prosthet Dent . 1979;42:39–44
  8. Robbins JW . Restoration of endodontically treated teeth . Dent Clin North Am . 2002;46:367–384
  9. Sorenson JA , Engleman MJ , Mto WT . Effect of ferrule design on fracture resistance of complete crowns . Int J Prosthodont . 1995;1:155–161
  10. Eskitascioglu G , Bellis S , Kalkan M . Evaluation of two post and core systems using two different methods (fracture strength and a finite element analysis) . JEndod . 2002;28:629–633
  11. Zhi-Yue L , Yu-Xing Z . Effect of post-core design and ferrule on fracture resistance of endodontically treated maxillary central incisors . J Prosthet Dent . 2003;89:368–373
  12. Sirimai S , Riss DN , Margano SM . An in vitro study of the fracture resistance and the incidence of vertical root fracture of pulpless teeth restored with six post-and-core systems . J Prosthet Dent . 1999;81:262–269
  13. Sidoli GE , King PA , Setchell DJ . An in vitro evaluation of a carbon fiber-based post and core system . J Prosthet Dent . 1997;78:5–9
  14. Martinez IA , Silva L , Rilo B , Santana U . Comparison of the fracture resistance of pulpless teeth restored with a cast post and core or carbon-fiber post with a composite core . J Prosthet Dent . 1998;80:527–532
  15. King PA , Setchell DJ . An in vitro evaluation of a prototype CFRC prefabricated post developed for the restoration of pulpless teeth . J Oral Rehabil . 1990;17:599–609
  16. Dietschi D , Romelli M , Goretti A . Adaptation of adhesive post and cores to dentin after fatigue testing . Int J Prosthodont . 1997;10:498–507
  17. Roberto M . Fourth-generation intraradicular posts for the aesthetic restoration of endodontically treated teeth . Pract Periodontics, Aesthet Dent . 2000;12:875–884
  18. Butz F , Lennon AM , Heydecke G , Strub JR . Survival rate and fracture strength of endodontically treated maxillary incisors with moderate defects restored with different post and core systems. An in vitro study . Int J Prosthodont . 2001;14:58–64
  19. Bitter K , Kielbassa AM . Post-endodontic restorations with adhesively luted fiber-reinforced composite post system: a review . Am J Dent . 2007;20:353–360
  20. Abo EL-Ela OA , Atta OA , EL-Mowafy O . Fracture resistance of anterior teeth restored with a novel nonmetallic post . J Can Dent Assoc . 2008;74:441
  21. Al-Wahadni AM , Hamdan S , Al-Omiri M , Hammad MM , Hatamleh MM . Fracture resistance of teeth restored with different post systems: in vitro study . Oral Surg Oral Med Oral Pathol Oral Radiol Endod . 2008;106:77–83

PII: S0975-962X(11)60017-8

doi:10.1016/S0975-962X(11)60017-8

Indian Journal of Dentistry
Volume 2, Issue 3 , Pages 61-67, September 2011

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