Comparative study of retention of fiber-Reinforced post at middle and cervical one thirds of root canal cemented by Glass ionomer and Self adhesive Resin cement measured at different times

Mohammed R.


The purpose of this study was to compare regional bond strength at middle and cervical thirds of the root canal among glass fiber- reinforced composite (FRC) endodontic posts luted with different cements, using the push-out test to compare the performance (retention) of two types of luting cements ;Glass ionomer cement and resin cement used to cement translucent fiber post and to compare the result of the push-out test at different storage times;1 week ,1month and 2 months.

Sixty caries-free, recently extracted single-rooted human teeth with straight root canals was used in this study, The root canals were endodontically instrumented at a working length of 0.5 mm from the apex by means of conventional instruments for hand use (Dentsply, Switzerland) up to size 35.then root canal filling was performed followed by post space preparation up to 8mm including cervical and middle one third of root canal then the fiber post was cemented into canal post space then the root was sectioned to get cervical (4 mm in length) and middle (4 mm in length) thirds ,these thirds were examined by push out test to get values of retention of fiber post inside these canal thirds .The results of this study has been showed that there was higher signifi- cant more push out bond strength between fiber post and root at cervical third as compared with middle third also the results showed that there was higher significant differences between push out bond strength between the two types of dental cements used to cement the fiber post to the root canal and after 1 month and 2 months the push out bond strength was increase for both types of cements.


glass fiber post, push out retention ,glass ionomer, self adhesive Resin

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-Ulbrich N.L. ,Franco A.P., Zielak J.C., Mathias A.L,: The stress evaluation of root posts using the finite element analysis;RSBO;2011:8(2):189-193.

-Duret B, Reynaud M, Duret F. Int “er^ et des mat’eriaux ‘ a structure unidirectionnelle dans les reconstructions corono-radiculaires. J Biomat Dent 1992; 7:45-7.

- Asmussen E, Peutzfeldt A, Heitmann T. Stiffness, elastic limit and strength of newer types of endodontic posts. J Dent 1999;_-27:275-8.

-Vichi A,Ferrari M, Davidson CL.Influnce of ceramic cement thickness on the marking of various types of ppaque.J Prosthet.Dent. 2000;83(4)412-7

- Mannocci F, Pilecki P, Bertelli E, Watson T. Density of dentinal tubules affects the tensile strength of root dentin. Dent Mater 2004; 20:293-296.

- Carrigan PJ, Morse DR, Furst ML, Sinai JH. A scanning electron microscopic evaluation of hu- man dentinal tubules according to age and location. J Endod 1984; 10:359-363.

- Goracci C, Tavares AU, Fabianelli A, Cardoso PC, Tay FR, Ferrari M. The adhesion between fiber posts and root-canal walls: comparison between microtensile and push-out bond strength measurements. Eur J Oral Sci 2004; 112:353-61.

-Vano M, Goracci C., Monticelli F, . Tognini F. , Gabriele M. , Tay FR., Ferrari M., ; The adhesion between fiber posts and composite resin core: the evaluation of microtensile bond strength follow- ing various surface chemical treatment to posts.;2006,39(1),31-39.

- Perdigao J, Gomes G, Lee IK : The effect of silane on the bond strengths of fiber posts. Dental Materials 2006;22, 752-8.

-Maria D. , Husamettin G., Werner G., Anne K.:Push out strength of fiber posts depending on the type of root canal filling and resin cement.; Clin. oral invest.;2011,15:273-281.

-Burke FJT, Liebler M, Eliades G, Randall RC. Ease of use versus clinical effectiveness of re- storative materials. Quintessence Int. 2001; 32(3):239–42.

- Ferracane Stansbury & Burke,. Self-adhesive resin cements chemistry, properties and clinical considerations, Review article. J Of Oral Rehabil. 2010.

- Mazzoni A, Marchesi G, Cadenaro M, Mazzotti G, Di Lenarda R, Ferrari M, Breschi L. Push- out stress for fiber posts luted using different adhesive strategies. Eur J Oral Sci 2009; 117(4): 447- 53.

- Lopez G C, Ballarin A, Baratieri L N. Bond strength and fracture analysis between resin ce- ments and root canal dentin. Aust Endod J 2010:1-7.

- Anusavice KJ. Phillips science of Dental Materials WB Saunders Company 10th Ed. 1996:563- 574.

- Feng L, Suh BI. The effect of curing modes on polymerization contraction stress of a self adhe- sived composite. J Biomed Mater Res B Appl Biomater. 2006 Jan; 76(1):196-202.

-Graig R.G.;Restorative dental materials St. Louis:The CV.Mosby Co, 1985.



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