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Journal of Prosthetic Dentistry

Light transmission and bond strength of glass fiber posts submitted to different surface treatments

      Abstract

      Statement of problem

      Light transmitted deep into the root canal is an important parameter to increase bonding of the cement to the post and dentin. Glass fiber posts seem to be an option to increase transmitted light, but literature on the light transmittance profile and power transmission to deep canal regions is lacking.

      Purpose

      The purpose of this in vitro study was to evaluate light delivered by 2 types of fiberglass posts submitted to different surface treatments and to evaluate the bond strength.

      Material and methods

      Whiteposts and Superposts were allocated to 4 groups: no surface treatment, surface treatment with 24% hydrogen peroxide, surface treatment with silane, and surface treatment with 24% hydrogen peroxide plus silane. The total light transmitted by the posts was measured by using an integrating sphere to collect the diffuse light. The light profile that was laterally delivered to the post was measured with a power detector equipped with an optical fiber probe. The bond strength was measured with the push-out test. Scanning electron microscopy was used to evaluate the surface treatments. The light transmission data were analyzed by using a generalized linear model and the Bonferroni test and the bond strength values were evaluated by using ANOVA and the Tukey test (α=.05).

      Results

      The cervical third presented the highest transmission (74.1% for Whiteposts and 74.6% for Superposts), followed by the middle (20.9% for Whiteposts and 20.4% for Superposts) and apical (5.0% for both Whiteposts and Superposts) thirds. Superposts led to higher bond strength than Whiteposts (9.73 ±5.89 and 8.48 ±4.99 MPa, respectively). Surface treatment with silane and hydrogen peroxide plus silane afforded similar bond strength (11.4 ±6.4 and 10.7 ±5.6 MPa, respectively), which was higher as compared with the bond strength obtained after surface treatment with hydrogen peroxide. For both post types, the bond strength decreased from the cervical (12.2 ±6.0 MPa) to the middle (9.7 ±5.0 MPa) and apical (6.5 ±3.6 MPa) thirds.

      Conclusions

      Light transmission and bond strength decreased from the cervical to the apical third. Surface treatment impacted bond strength; light transmission through Whiteposts was slightly higher than light transmission through Superposts.
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      References

        • Samimi P.
        • Mortazavi V.
        • Salamat F.
        Effects of heat treating silane and different etching techniques on glass fiber post push-out bond strength.
        Oper Dent. 2014; 39: 217-224
        • Plotino G.
        • Grande N.M.
        • Bertini R.
        • Pameijer C.H.
        • Somma F.
        Flexural properties of endodontic post and human root dentin.
        Dent Mater. 2007; 23: 1129-1135
        • Juloski J.
        • Goracci C.
        • Tsintsadze N.
        • Carrabba M.
        • Vichi A.
        • Vulicevic Z.R.
        • et al.
        Influence of luting agent translucency on fiber post retention.
        Eur J Oral Sci. 2015; 123: 116-121
        • Morgan L.F.S.A.
        • Peixoto R.T.R.C.
        • Albuquerque R.C.
        • Corrêa M.F.S.
        • Polleto L.T.A.
        • Pinotti M.B.
        Light transmission through a translucent fiber post.
        J Endod. 2008; 34: 299-302
        • Braga N.M.
        • Souza-Gabriel A.E.
        • Messias D.C.
        • Rached-Junior F.J.
        • Oliveira C.F.
        • Silva R.G.
        • et al.
        Flexural properties, morphology and bond strength of fiber-reinforced posts: influence of post pretreatment.
        Braz Dent J. 2012; 23: 679-685
        • Kamble V.B.
        • Desai R.G.
        • Arabbi K.C.
        • Dhopre S.P.
        Evaluation of the effect of different surface treatments on the surface morphology of two commercially available glass fiber posts: A scanning electron microscopy study.
        Indian J Dent. 2013; 4: 1-8
        • Sarkis-Onofre R.
        • Skupien J.A.
        • Cenci M.S.
        • Moraes R.R.
        • Pereira-Cenci T.
        The role of resin cement on bond strength of glass-fiber post luted into root canals: a systematic review and meta-analysis of in vitro studies.
        Oper Dent. 2014; 39: E31-E44
        • Monticelli F.
        • Toledano M.
        • Tay F.R.
        • Cury A.H.
        • Goracci C.
        • Ferrari M.
        Post-surface conditioning improves interfacial adhesion in post/core restorations.
        Dent Mater. 2006; 22: 602-609
        • Naves L.Z.
        • Santana F.R.
        • Castro C.G.
        • Valdivia A.D.
        • Da Mota A.S.
        • Estrela C.
        • et al.
        Surface treatment of glass fiber and carbon fiber posts: SEM characterization.
        Microsc Res Tech. 2011; 74: 1088-1092
        • Mosharraf R.
        • Yazdi B.Y.N.
        Comparative evaluation of effects of different surface treatment methods on bond strength between fiber post and composite core.
        J Adv Prosthodont. 2012; 2: 103-108
        • Altmann A.S.
        • Leitune V.C.
        • Collares F.M.
        Influence of eugenol-based sealers on push-out bond strength of fiber post luted with resin cement: systematic review and meta-analysis.
        J Endod. 2015; 41: 1418-1423
        • Chen Q.
        • Xu-Yl W.
        • Mi Y.I.
        • Bai Y.-Y.
        • Cai Qing Q.
        • Xin Z.
        Effect on the bond strengths of glass fiber posts functionalized with polydopamine after etching with hydrogen peroxide.
        Dent Mater J. 2015; 34: 740-745
        • Daneshkazemi A.
        • Davari A.
        • Askari N.
        • Kaveh M.
        Effect of different fiber post surface treatments on microtensile bond strength to composite resin.
        J Prosthet Dent. 2016; 116: 896-901
        • Aksornmuang J.
        • Chuenarrom C.
        • Chittithaworn N.
        Effects of various etching protocols on the flexural properties and surface topography of fiber-reinforced composite dental posts.
        Dent Mater J. 2017; 36: 614-621
        • Prado M.
        • Marques J.N.
        • Pereira G.D.
        • Silva E.M.
        • Simão R.A.
        Evaluation of different surface treatments on fiber post cemented with a self-adhesive system.
        Mater Sci Eng C. 2017; 77: 257-262
        • Zamboni-Quitero M.F.
        • Garone-Netto N.
        • De Freitas P.M.
        • De Cerqueira Luz M.A.
        Effect of post translucency on bond strength of different resin luting agents to root dentin.
        J Prosthet Dent. 2014; 111: 35-41
        • Stylianou A.
        • Burgess J.O.
        • Liu P.
        • Givan D.A.
        • Lawson N.C.
        Light-transmitting fiber optic posts: An in vitro evaluation.
        Dent Mater. 2017; 117: 116-123
        • Roberts H.W.
        • Leonard D.L.
        • Vandewalle K.S.
        • Cohen M.E.
        • Charlton D.G.
        The effect of a translucent post on resin composite depth of cure.
        Dent Mater. 2004; 20: 617-622
        • Niemz M.H.
        Laser-tissue interactions: fundamentals and applications.
        4rd ed. Springer, Berlin2019: 9-25
        • Faria-Silva A.L.
        • Arias V.G.
        • Soares L.E.
        • Martin A.A.
        • Martins L.R.
        Influence of fiber-post translucency on the degree of conversion of a dual-cured resin cement.
        J Endod. 2007; 33: 303-305
        • Radovic I.
        • Corciolani G.
        • Magni E.
        • Krstanovic G.
        • Pavlovic V.
        • Vulicevic Z.R.
        • et al.
        Light transmission through fiber post: the effect on adhesion, elastic modulus and hardness of dual-cure resin cement.
        Dent Mater. 2009; 25: 837-844
        • Goracci C.
        • Corciolani G.
        • Vichi A.
        • Ferrari M.
        Light-transmitting ability of marketed fiber posts.
        J Dent Res. 2008; 87: 1122-1126
        • Moazzami S.M.
        • Kazemi R.
        • Alami M.
        • Kakhki E.A.
        • Mehhary M.
        • Sarmad M.
        • et al.
        Light conduction capability of different light-transmitting FRC posts.
        J Dent Mater Tech. 2012; 1: 40-46
        • Mosharraf R.
        • Baghael Y.N.
        Effect of post surface conditioning before silanization on bond strength between fiber post and resin cement.
        J Adv Prosthodont. 2013; 5: 126-132
        • Tao L.
        • Pashley D.
        Shear retentions to dentin: effect of surface treatments, depth and position.
        Dent Mater. 1988; 4: 371-378
        • Topcu F.T.
        • Erdemir U.
        • Sahinkesen G.
        • Mumcu E.
        • Yildiz E.
        • Uslan I.
        Push-out bond strengths of two fiber post types bonded with different dentin bonding agents.
        J Biomed Mater Res B Appl Biomater. 2010; 93: 359-366
        • Pulido C.A.
        • Franco A.P.G.O.
        • Gomes G.M.
        • Bittencourt B.F.
        • Kalinowski H.J.
        • Gomeds J.C.
        • et al.
        An in situ evaluation of the polymerization shrinkage, degree of conversion, and bond strength of resin cements used for luting fiber posts.
        J Prosthet Dent. 2016; 116: 570-576