Influence of airborne-particle abrasion on flexural strength of fiber-reinforced composite post

미세입자 분사마모 표면처리가 Fiber-Reinforced Composite 포스트의 굴곡 강도에 미치는 영향

  • Sim, Eun-Ju (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Kim, Jin-Woo (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Cho, Kyung-Mo (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Park, Se-Hee (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University)
  • 심은주 (강릉원주대학교 치과대학 치과보존학교실) ;
  • 김진우 (강릉원주대학교 치과대학 치과보존학교실) ;
  • 조경모 (강릉원주대학교 치과대학 치과보존학교실) ;
  • 박세희 (강릉원주대학교 치과대학 치과보존학교실)
  • Received : 2015.10.14
  • Accepted : 2016.03.03
  • Published : 2016.03.31


Purpose: Many studies have shown that airborne-particle abrasion of fiber post can improve the bonding strength to resin cement. But, airborne-particle abrasion may influence the property of fiber post. The purpose of this study is to evaluate the influence of airborne-particle abrasion on flexural strength of fiber post. Materials and Methods: Two fiber-reinforced posts; DT Light Post Size 2 (1.8 mm diameter, Bisco Inc) and RelyX Fiber Post Size 3 (1.9 mm diameter, 3M ESPE); were used in this study. Each group was divided into 3 subgroups according to different surface treatments; without pretreatment: $50{\mu}m$ aluminum oxide (Cobra$^{(R)}$, Renfert): and $30{\mu}m$ aluminum oxide modified with silica (Rocatec Soft$^{(R)}$, 3M ESPE). After airborne-particle abrasion procedure, three-point bending test was done to determine the flexural strength and flexural modulus. The diameter of each posts was measured to an accuracy of 0.01 mm using a digital micrometer. There was no diameter change before and after airborneparticle abrasion. The mean flexural moduli and flexural strengths calculated using the appropriate equations. The results were statistically analyzed using One-way ANOVA and Scheffe's post-hoc test at 95% confidencial level. Results: There was no significant difference on flexural strength between groups. Conclusion: In the limitation of this study, flexural strength and flexural modulus of fiber post are not affected by airborne-particle abrasion.


airborne-particle abrasion;flexural strength;FRC post;three-point flexural test


  1. Galhano GA, Valandro LF, de Melo RM, Scotti R, Bottino MA. Evaluation of the flexural strength of carbon fiber-, quartz fiber-, and glass fiber-based posts. J Endod 2005;31:209-11.
  2. Asmussen E, Peutzfeldt A, Heitmann T. Stiffness, elastic limit, and strength of newer types of endodontic posts. J Dent 1999;27:275-8.
  3. Mehta SB, Millar BJ. A comparison of the survival of fibre posts cemented with two different composite resin systems. Br Dent J 2008;205:E23.
  4. Perdigao J, Gomes G, Lee IK. The effect of silane on the bond strengths of fiber posts. Dent Mater 2006;22:752-8.
  5. Valandro LF, Yoshiga S, de Melo RM, Galhano GA, Mallmann A, Marinho CP, Bottino MA. Microtensile bond strength between a quartz fiber post and a resin cement: effect of post surface conditioning. J Adhes Dent 2006;8:105-11.
  6. Rathke A, Haj-Omer D, Muche R, Haller B. Effectiveness of bonding fiber posts to root canals and composite core build-ups. Eur J Oral Sci 2009; 117:604-10.
  7. Bitter K, Kielbassa AM. Post-endodontic restorations with adhesively luted fiber-reinforced composite post systems: a review. Am J Dent 2007;20: 353-60.
  8. Bateman G, Ricketts DN, Saunders WP. Fibrebased post systems: a review. Br Dent J 2003;195: 43-8.
  9. Monticelli F, Osorio R, Albaladejo A, Aguilera FS, Tay FR, Ferrari M, Toledano M. Effect of adhesive systems and surface treatment of methacrylate resin-based fiber posts on post-resin-dentin bonds. Am J Dent 2007;20:231-4.
  10. Zicari F, De Munck J, Scotti R, Naert I, Van Meerbeek B. Factors affecting the cement-post interface. Dent Mater 2012;28:287-97.
  11. Radovic I, Monticelli F, Goracci C, Cury AH, Coniglio I, Vulicevic ZR, Garcia-Godoy F, Ferrari M. The effect of sandblasting on adhesion of a dualcured resin composite to methacrylic fiber posts: microtensile bond strength and SEM evaluation. J Dent 2007;35:496-502.
  12. Monticelli F, Osorio R, Sadek FT, Radovic I, Toledano M, Ferrari M. Surface treatments for improving bond strength to prefabricated fiber posts: a literature review. Oper Dent 2008;33:346-55.
  13. Brown RP. Handbook of plastics test methods. 3rd ed. Harlow, Essex; Longman Scientific & Technical; 1988. p. 139-49.
  14. Mannocci F, Sherriff M, Watson TF. Three-point bending test of fiber posts. J Endod 2001;27:758-61.
  15. Ozcan M, Vallittu PK. Effect of surface conditioning methods on the bond strength of luting cements to ceramics. Dent Mater 2003;19:725-31.
  16. Addison O, Fleming GJ. The influence of cement lute, thermocycling and surface preparation on the strength of a porcelain laminate veneering material. Dent Mater 2004;20:286-92.
  17. Vano M, Goracci C, Monticelli F, Tognini F, Gabriele M, Tay FR, Ferrari M. The adhesion between fibre posts and composite resin cores: the evaluation of microtensile bond strength following various surface chemical treatments to posts. Int Endod J 2006;39:31-9.
  18. Sahafi A, Peutzfeldt A, Asmussen E, Gotfredsen K. Bond strength of resin cement to dentin and to surface-treated posts of titanium alloy, glass fiber, and zirconia. J Adhes Dent 2003;5:153-62.
  19. Sahafi A, Peutzfeldt A, Asmussen E, Gotfredsen K. Retention and failure morphology of prefabricated posts. Int J Prosthodont 2004;17:307-12.
  20. Albashaireh ZS, Ghazal M, Kern M. Effects of endodontic post surface treatment, dentin conditioning, and artificial aging on the retention of glass fiber-reinforced composite resin posts. J Prosthet Dent 2010;103:31-9.
  21. Magni E, Mazzitelli C, Papacchini F, Radovic I, Goracci C, Coniglio I, Ferrari M. Adhesion between fiber posts and resin luting agents: a microtensile bond strength test and an SEM investigation following different treatments of the post surface. J Adhes Dent 2007;9:195-202.
  22. Balbosh A, Kern M. Effect of surface treatment on retention of glass-fiber endodontic posts. J Prosthet Dent 2006;95:218-23.
  23. Mosharraf R, Ranjbarian P. Effects of post surface conditioning before silanization on bond strength between fiber post and resin cement. J Adv Prosthodont 2013;5:126-32.
  24. Albashaireh ZS, Ghazal M, Kern M. Effect of dentin conditioning on retention of airborne-particleabraded, adhesively luted glass fiber-reinforced resin posts. J Prosthet Dent 2008;100:367-73.
  25. Plotino G, Grande NM, Bedini R, Pameijer CH, Somma F. Flexural properties of endodontic posts and human root dentin. Dent Mater 2007;23:1129-35.
  26. Stewardson DA, Shortall AC, Marquis PM, Lumley PJ. The flexural properties of endodontic post materials. Dent Mater 2010;26:730-6.
  27. Lassila LV, Tanner J, Le Bell AM, Narva K, Vallittu PK. Flexural properties of fiber reinforced root canal posts. Dent Mater 2004;20:29-36.
  28. Braga NM, Souza-Gabriel AE, Messias DC, Rached-Junior FJ, Oliveira CF, Silva RG, Silva- Sousa YT. Flexural properties, morphology and bond strength of fiber-reinforced posts: influence of post pretreatment. Braz Dent J 2012;23:679-85.