International Journal of Prosthodontics and Restorative Dentistry

Register      Login

VOLUME 1 , ISSUE 3 ( October-December, 2011 ) > List of Articles


Evaluation of Coronal Microleakage in Two Different Post-Core Systems

Simel Tezcan Ayyildiz, Emine Çelik Bagci

Citation Information : Ayyildiz ST, Bagci EÇ. Evaluation of Coronal Microleakage in Two Different Post-Core Systems. Int J Prosthodont Restor Dent 2011; 1 (3):163-168.

DOI: 10.5005/jp-journals-10019-1030

Published Online: 01-03-2014

Copyright Statement:  Copyright © 2011; The Author(s).



The aim of this in vitro study was to compare the cast metal and ceramic post-core systems, which have similar laboratory and clinical procedures according to coronal microleakage.

Materials and methods

Forty extracted maxillary anterior teeth were endodontically treated. Specimens were randomly assigned to four experimental groups (n = 10). The groups consisted of a cemented metal post-core group (CMPC), a not cemented metal post-core group (NMPC), a cemented ceramic post-core group (CZPC) and a not cemented ceramic post-core group (NZPC). A dual-cure resin cement (Panavia F) was used for both of the cemented groups. All specimens were stained with basic fuchsine and embedded in epoxy resin. Sagittal sections were obtained using a grinding machine and examined under binocular and coal microscopes. Coronal leakages were scored and data were analyzed using Kruskall-Wallis analysis of variance test.


Results were compared between and within groups. No statistically significant differences were found between groups.


Cement alone is not sufficient to provide a barrier against microleakage in post-core restorations. The chosen post-core type or application methods may be more relevant to the leakage issue.

PDF Share
  1. J Prosthet Dent 2005;94(1):24,56.
  2. Effects of cementing on retention of prefabricated screw posts. J Prosthet Dent 1987; 57:171-74.
  3. Tylman's theory and practice of fixed prosthodontics (8th ed). St Louis: Mosby 1989.
  4. Contemporary fixed prosthodontics (2nd ed). St Louis: Mosby 1995.
  5. Predictably restoring endodontic teeth. J Can Dent Assoc 1998;64:782-87.
  6. Factors affecting retention of post systems: A literature review. J Prosthet Dent 1999;81:380-85.
  7. Effective use of current core and post concepts. J Prosthet Dent 1984;52:231-34.
  8. Zirconia ceramic post systems: A literature review and a case report. Dent Mater J 2010; 29(3): 233-45.
  9. Fracture strength after dynamic loading of endodontically treated teeth restored with different post-and-core systems. J Prosthet Dent 2002; 87:438-45.
  10. Esthetic post-and-core treatment. Dent Clin North Am 2001;45:103-16.
  11. Foundation restorations in fixed partial prosthodontics: Current knowledge and future needs. J Prosthet Dent 1999;82:643-57.
  12. Corrosion behavior of dental metals and alloys in different media. J Oral Rehabil 1998;25:800-08.
  13. Fracture resistance and reliability of new zirconia posts. J Prosthet Dent 2004;91:342-48.
  14. A one appointment procedure for cast post and core restorations. J Prosthet Dent 1994;71:420-22.
  15. Resistance to fracture of endodontically treated teeth restored with different post systems. J Prosthet Dent 2002;87:431-37.
  16. New all ceramic indirect post-and- core system. J Prosthet Dent 1999;81:625-29.
  17. Clinical success of zirconium oxide posts with resin composite or glass-ceramic cores in endodontically treated teeth: A 4-year retrospective study. Int J Prosthodont 2004;17:524-28.
  18. CosmoPost/IPS Empress Cosmo Ingot Scientific Documentation, 2002, pp. 9.
  19. Survival rate and fracture strength of incisors restored with different endodontically treated incisors without coronoradicular post and core systems endodontically treated incisors without coronoradicular reinforcement. J Endod 2002;28:710-15.
  20. Factors affecting retention of post systems. J Prosthet Dent 1999; 81:625-29.
  21. Effect of post adaptation on fracture resistance of endodontically treated teeth. J Prosthet Dent 1990; 64:419-34.
  22. Fundamentals of fixed prosthodontics (3th ed). Chicago: Quintessence Pub Co Inc, 1997 p.194.
  23. Macromolecular leakage beneath full cast crowns: A 2 years in vitro investigation. J Prosthet Dent 2001;85:20-25.
  24. Microleakage of endodontically treated teeth restored with fiber posts and composite cores after cyclic loading: A confocal microscopic study. J Prosthet Dent 2001;85:284-91.
  25. Endodontic failure caused by inadequate restorative procedures: Review and treatment recommendations. J Prosthet Dent 2002;87:674-78.
  26. In vitro microleakage of luting cements and crown foundation materials. J Prosthet Dent 2001;85: 292-98.
  27. Microleakage along apical root fillings and cemented pots. J Prosthet Dent 1998;79:264-69.
  28. Microleakage of pots used to restore endodontically teeth. J Endod Jul 1995;21(7):376-79.
  29. Microleakage along Glassix glass fibre pots cemented with three different materials assessed using a fluid transport system. Int Endod J 2006;39:363-67.
  30. Relationship between crown placement and the survival of endodontically treated teeth. J Prosthet Dent 2002;87:256-63.
  31. Microleakage through dentin after crown cementation. J Endod 1995;21:9-12.
  32. Marginal leakage of cast gold crowns luted with zinc phosphate cement: An in vivo study. J Prosthet Dent 1996;75:9-13.
  33. Microleakage of adhesive restorative materials. Am J Dent 2001;14:170-76.
  34. Microleakage of endodontically treated teeth with different dowel systems. J Prosthet Dent 2004;92:163-69.
  35. Microleakage of endodontically treated teeth restored with posts. J Endod 1998;24:703-08.
  36. Microleakage. J Dent 1992;2:3-10.
  37. An evaluation of coronal microleakage in endodontically treated teeth. Part I. Time periods. J Endod 1987;13:56-59.
  38. An in vitro study of coronal microleakage in root-canal treated teeth restored by the post and core technique. Int J Endod 1997;30:361-68.
  39. An in vivo comparison of the step-back technique versus a step-back/ultrasonic technique in human mandibular molars. J Endod 1989;15:195-99.
  40. Microleakage at the abutment-implant interface of osseointegrated implants: A comparative study. Int J Oral Maxillofac Implants 1999;14: 94-100.
  41. Accuracy of a manual torque application device for morse- taper implants: A technical note. Int J Oral Maxillofac Implants 2004;19:743-48.
  42. Microleakage of composite resin cores treated with various dentin bonding systems. J Prosthet Dent 1991;66:24-29.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.