Influence of fiber posts on the fracture resistance of endodontically treated premolars with different dental defects

Abstract

Restoration with fiber posts can help reinforce a tooth’s structural integrity in some root canal surgery patients, which shows research from China. The structural properties of these posts make them well suited for fracture prevention, but the universality of these benefits remains unclear. A root canal procedure can leave a treated tooth with some portions of the dentin ‘wall’ surrounding the pulp intact. Yi-Ming Gao and colleagues at Shanghai Jiao Tong University examined how this wall affects the efficacy of post implantation. They used an in vitro simulation of chewing force to test fracture prevention in implanted versus non-implanted teeth with varying amounts of remaining dentin. They found that posts specifically improved fracture resistance in teeth with no remaining dentin or with a single dentin wall, and generally did not affect the likelihood that fractures could subsequently be repaired.

Keywords

dynamic loading / fiber post / fracture resistance / residual wall

References

[1] Fredrisksson M, Astback J, Pamenius M. A retrospective study of 236 patients with teeth restored by carbon fiber-reinforced epoxy resin posts. J Prosthet Dent, 1998, 80(2): 151-157.

[2] Naumann M, Preuss A, Rosentritt M. Effect of incomplete crown ferrules on load capacity of endodontically treated maxillary incisors restored with fiber posts, composite build-ups, and all-ceramic crowns: an in vitro evaluation after chewing simulation. Acta Odontol Scand, 2006, 64(1): 31-36.

[3] Sterzenbach G, Rosentritt M, Frankenberger R. Loading standardization of postendodontic restorations in vitro: impact of restorative stage, static loading, and dynamic loading. Oper Dent, 2012, 37(1): 71-79.

[4] Forberger N, Göhring TN. Influence of the type of post and core on in vitro marginal continuity, fracture resistance, and fracture mode of lithia disilicate-based all-ceramic crowns. J Prosthet Dent, 2008, 100(4): 264-273.

[5] Yilmaz Y, Guler C, Sahin H. Evaluation of tooth-fragment reattachment: a clinical and laboratory study. Dent Traumatol, 2010, 26(4): 308-314.

[6] Salameh Z, Sorrentino R, Papacchini F. Fracture resistance and failure patterns of endodontically treated mandibular molars restored using resin composite with or without translucent glass fiber posts. J Endod, 2006, 32(8): 752-755.

[7] Mangold JT, Kern M. Influence of glass-fiber posts on the fracture resistance and failure pattern of endodontically treated premolars with varying substance loss: an in vitro study. J Prosthet Dent, 2011, 105(6): 387-393.

[8] Giovani AR, Vansan LP, de Sousa Neto MD. In vitro fracture resistance of glass-fiber and cast metal posts with different lengths. J Prosthet Dent, 2009, 101(3): 183-188.

[9] Cho H, Michalakis KX, Kim Y. Impact of interproximal groove placement and remaining coronal tooth structure on the fracture resistance of endodontically treated maxillary anterior teeth. J Prosthodont, 2009, 18(1): 43-48.

[10] Sterzenbach G, Kalberlah S, Beuer F. In-vitro simulation of tooth mobility for static and dynamic load tests: a pilot study. Acta Odontol Scand, 2011, 69(5): 316-318.

[11] Kivanç BH, Alaçam T, Görgül G. Fracture resistance of premolars with one remaining cavity wall restored using different techniques. Dent Mater J, 2010, 29(3): 262-267.

[12] Arunpraditkul S, Saenqsanon S, Pakviwat W. Fracture resistance of endodontically treated teeth: three walls versus four walls of remaining coronal tooth structure. J Prosthodont, 2009, 18(1): 49-53.

[13] Nq CC, Dumbrique HB, Al-Bayat MI. Influence of remaining coronal tooth structure location on the fracture resistance of restored endodontically treated anterior teeth. J Prosthet Dent, 2006, 95(4): 290-296.

[14] Bergoli C, Amaral M, Baldissara P. Surviving of bovine teeth adhesively restored with 3 types of fiber post after fatigue resistance. Minerva Stomatol, 2011, 60(6): 303-309.

[15] Krämer N, Rudolph H, Garcia-Godoy F. Effect of thermo-mechanical loading on marginal quality and wear of primary molar crowns. Eur Arch Paediatr Dent, 2012, 13(4): 185-190.

[16] Eraslan O, Aykent F, Yucel MT. The finite element analysis of the effect of ferrule height on stress distribution at post-and-core-restored all-ceramic anterior crowns. Clin Oral Investig, 2009, 13(2): 223-227.

[17] Soares CJ, Pizi EC, Fonseca RB. Influence of root embedment material and periodontal ligament simulation on fracture resistance tests. Braz Oral Res, 2005, 19(1): 11-16.

[18] Spazzin AO, Galafassi D, de Meira-Júnior AD. Influence of post and resin cement on stress distribution of maxillary central incisors restored with direct resin composite. Oper Dent, 2009, 34(2): 223-229.

[19] Nam SH, Chang HS, Min KS. Effect of the number of residual walls on fracture resistances, failure patterns, and photoelasticity of simulated premolars restored with or without fiber-reinforced composite posts. J Endod, 2010, 36(2): 297-301.

[20] Ferrari M, Vichi A, Fadda GM. A randomized controlled trial of endodontically treated and restored premolars. J Dent Res, 2012, 91(7): 72-78.

[21] Kumagae N, Komada W, Fukui Y. Influence of the flexural modulus of prefabricated and experimental posts on the fracture strength and failure mode of composite resin cores. Dent Mater J, 2012, 31(1): 113-119.

[22] Ichim I, Kuzmanovic DV, Love RM. A finite element analysis of ferrule design on restoration resistance and distribution of stress within a root. Int Endod J, 2006, 39(6): 443-452.

[23] Cormier CJ, Burns DR, Moon P. In vitro comparison of the fracture resistance and failure mode of fiber, ceramic, and conventional post systems at various stages of restoration. J Prosthodont, 2001, 10(1): 26-36.