Anatomic fiber post in maxillary central incisor with ovoidshaped and flared root canal using an indirect technique: A clinical report

Main Article Content

Duangtawan Rintanalert
Umaporn Vimonkittipong


Objective: This clinical report describes treatment sequence and laboratory techniques for indirect anatomic
fiber post fabrication in patient with ovoid-shaped and flared root canal.

Materials and Methods: A 32-year old Thai male was indicated for endodontic treatment followed by post,
core and crown for his maxillary right central incisor. Flared and ovoid-shaped canal was detected in this tooth and no prefabricated fiber post could satisfactorily adapted to the canal’s entire length. Therefore, indirect anatomic fiber post was chosen to be the restorative technique. Impression of the post space and surrounding tooth structure was performed and working model with the canal replica was established. Composite resin was incrementally relined on to the post into the shape of the replicated canal, and the composite core was formed. Anatomic fiber post was transferred into the maxillary right central incisor’s canal and fixed with resin cement. Porcelain-fused metal crowns were fabricated and placed onto both maxillary central incisors.

Results: Indirect anatomic fiber post was found to be radiographically adapted to the root canal’s entire length, creating a uniform and thin layer of resin cement without any voids detected. The patient was able to function normally and was satisfied with the final results.

Conclusions: Indirect anatomic fiber post is one possible restoration technique to be used in cases of flared
and ovoid root canals. This technique ensures good post adaptation to the root canal wall which could be
beneficial in terms of reduction in cement layer thickness and reduction in the polymerization shrinkage of the resin cement.


Download data is not yet available.

Article Details

How to Cite
Rintanalert D, Vimonkittipong U. Anatomic fiber post in maxillary central incisor with ovoidshaped and flared root canal using an indirect technique: A clinical report . M Dent J [Internet]. 2020 Nov. 12 [cited 2023 Dec. 6];40(3):175-84. Available from:
Case report


Lui JL. Composite resin reinforcement of flared canals using light-transmitting plastic posts. Quintessence Int 1994; 25.

Bonfante G, Kaizer OB, Pegoraro LF, do Valle AL. Fracture strength of teeth with flared root canals restored with glass fibre posts. Int Dent J 2007; 57: 153-60.

Teixeira CS, Silva-Sousa YTC, Sousa-Neto MD. Bond strength of fiber posts to weakened roots after resin restoration with different light-curing times. J Endod 2009; 35: 1034-9.

Wu M-K, R'oris A, Barkis D, Wesselink PR. Prevalence and extent of long oval canals in the apical third. Oral Surg Oral Med Oral Pathol Oral Radiol Endod2000; 89: 739-43.

Gani O, Visvisian C. Apical canal diameter in the first upper molar at various ages. J Endod 1999; 25: 689-91.

Mauger MJ, Schindler WG, Walker III WA. An evaluation of canal morphology at different levels of root resection in mandibular incisors. J Endod1998; 24: 607-9.

Mohammadi Z, Shalavi S, Jafarzadeh H. The oval shaped, root canal: a clinical review. S Afr Dent J2015; 70: 200-4.

Vano M, Goracci C, Monticelli F, Tognini F, Gabriele M, Tay F, et al. The adhesion between fibre posts and composite resin cores: the evaluation of microtensile bond strength following various surface chemical treatments to posts. Int Endod J2006; 39: 31-9.

Kalkan M, Usumez A, Ozturk AN, Belli S, Eskitascioglu G. Bond strength between root dentin and three glass-fiber post systems. J Prosthet Dent 2006; 96: 41-6.

Hayashi M, Takahashi Y, Imazato S, Ebisu S. Fracture resistance of pulpless teeth restored with post-cores

and crowns. Dent Mater 2006; 22: 477-85.

Ferrari M, Cagidiaco M, Grandini S, De Sanctis M, Goracci C. Post placement affects survival of endodontically treated premolars. J Dent Res 2007; 86: 729-34.

Ferro MCdL, Colucci V, Marques AG, Ribeiro RF, Silva-Sousa YT, Gomes EA. Fracture Strength of Weakened Anterior Teeth Associated to Different Reconstructive Techniques. Braz Dent J 2016; 27: 556-61.

Gomes GM, Rezende E, Gomes O, Gomes JC, Loguercio AD, Reis A. Influence of the resin cement thickness on bond strength and gap formation of fiber posts bonded to root dentin. J Adhes Dent 2014; 16: 71-8.

Clavijo VGR, Reis JMdSN, Kabbach W, Oliveira Junior OBd, Andrade MFd. Fracture strength of flared bovine roots restored with different intraradicular posts. J Appl Oral Sci 2009; 17: 574-8.

Li Q, Xu B, Wang Y, Cai Y. Effects of Auxiliary Fiber Posts on Endodontically Treated Teeth With Flared Canals. Oper Dent 2011; 36: 380-9.

Grandini S, Sapio S, Simonetti M. Use of anatomic post and core for reconstructing an endodontically treated tooth: a case report. J Adhes Dent 2003; 5.

Grande NM, Butti A, Plotino G, Somma F. Adapting fiber-reinforced composite root canal posts for use in noncircular-shaped canals. PPAD 2006; 18: 593.

Silva GRd, Santos-Filho PCdF, Simamoto-Júnior PC, Martins LRM, Mota ASd, Soares CJ. Effect of post type and restorative techniques on the strain and fracture resistance of flared incisor roots. Braz Dent J2011; 22: 230-7.

Al-Assar RM, El-Ghani OSA, Mandour MH. Effect of relining, cement type, and thermocycling on push-out bond strength of fiber reinforced posts. FDJ 2015; 1: 13-22.

Rocha AT, Gonçalves LM, Vasconcelos AJdC, Maia Filho M, Nunes Carvalho C, De Jesus Tavarez RR. Effect of anatomical customization of the fiber post on the bond strength of a self-adhesive resin cement. Int J Dent 2017; 2017.

Santos-Filho PCF, Veríssimo C, Soares PV, Saltarelo RC, Soares CJ, Martins LRM. Influence of ferrule, post system, and length on biomechanical behavior of endodontically treated anterior teeth. J Endod2014; 40: 119-23.

Glickman GN. AAE Consensus Conference on Diagnostic Terminology: background and perspectives. J Endod 2009; 35: 1619-20.

Jou Y-T, Karabucak B, Levin J, Liu D. Endodontic working width: current concepts and techniques. Dent Clin N Am 2004; 48: 323-35.

Srionthiang P, Arunpraditkul S, Boonsiri I. Effect of chemical surface treatment on the push out bond strength of quartz fiber posts. CU Dent J 2013; 36: 165-76.

de Miranda Coelho CS, BIFFI JCG, da SILVA GR, Abrahão A, Campos RE, Soares CJ. Finite element analysis of weakened roots restored with composite resin and posts. Dent Mater J 2009; 28: 671-8.

Gomes GM, Gomes O, Gomes JC, Loguercio AD, Calixto AL, Reis A. Evaluation of different restorative techniques for filling flared root canals: fracture resistance and bond strength after mechanical fatigue. J Adhes Dent 2014; 16: 267-76.

Faria-e-Silva AL, Pedrosa-Filho CdF, Menezes MdS, Silveira DMd, Martins LRM. Effect of relining on fiber post retention to root canal. J Appl Oral Sci 2009; 17: 600-4.

Rosenstiel SF, Land MF. Contemporary Fixed Prosthodontics-E-Book: Elsevier Health Sciences; 2015.

Radovic I, Corciolani G, Magni E, Krstanovic G, Pavlovic V, Vulicevic ZR, et al. Light transmission through fiber post: the effect on adhesion, elastic modulus and hardness of dual-cure resin cement. Dent Mater 2009; 25: 837-44.

Cheleux N, Sharrock P, Degrange M. Surface treatments on quartz fiber post: influence on adhesion and flexural properties. Am J Dent 2007; 20: 375-9.

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.

Yenisey M, Kulunk S. Effects of chemical surface treatments of quartz and glass fiber posts on the retention of a composite resin. J Prosthet Dent 2008; 99: 38-45.

Nandini S. Indirect resin composites. J Conserv Dent2010; 13: 184.