- Visibility 48 Views
- Downloads 33 Downloads
- Permissions
- DOI 10.18231/j.aprd.11723.1785887444
-
CrossMark
Contemporary posts for varied canal shapes- An update
- Author Details:
-
Shikha Jaiswal
-
Sachin Gupta
-
Shivali Tyagi *
-
Manasvi Sharma
Shikha Jaiswal
Sachin Gupta
Shivali Tyagi *
Manasvi Sharma
Endodontically treated teeth that are structurally compromised often present significant restorative challenges, especially when the root canals are flared or excessively wide or oval in shape. The use of post and core systems remains a common and effective strategy to restore structural integrity in such teeth and provide retention for the final restoration. However, morphological variations- like ribbon-shaped, oval-shaped, or kidney-shaped canals—may complicate the clinical approach due to the difficulty in achieving adequate adaptation and support with standard restorative techniques. Traditionally, custom-cast dowel cores have been recommended in such cases due to their ability to conform to irregular canal anatomy. However, these systems pose notable drawbacks. The high modulus of elasticity of cast metal posts (often up to ten times that of natural dentin) - can lead to stress concentrations at the post-dentin interface, increasing the risk of root fracture. Furthermore, metal posts are limited in their esthetic performance, particularly in anterior regions. On the other hand, while prefabricated single fiber posts offer better esthetics and closer elastic compatibility to dentin, they often fail to adapt adequately to the wide, irregular canal shapes. In this context, this article would discuss contemporary alternatives, such as anatomical post techniques, bundled fiber systems, or custom-fabricated fiber-reinforced composite posts etc., which provide improved canal adaptation, better stress distribution, and enhanced esthetic outcomes, making them more suitable for restoring structurally compromised, flared, or irregularly shaped root canals.
References
- Slutzky-Goldberg I, Slutzky H, Gorfil C, Smidt A. Restoration of endodontically treated teeth review and treatment recommendations. Int J Dent. 2009:2009:150251. doi:
- 1155/2009/150251.
- Gogna R, Jagadish S, Shashikala K, Prasad BK. Restoration of badly broken, endodontically treated posterior teeth. J Conserv Dent. 2009;12(3):123–8.
- Fernandes AS, Dessai GS. Factors affecting the fracture resistance of post-core reconstructed teeth: a review. Int J Prosthodont. 2001;14(4):355–63.
- Husain A, Gupta S, Nikhil V, Jaiswal S. Effect of antioxidant on pull-out bond strength of fiber post bonded with self-adhesive resin luting cement. Int J Sci Res. 2020;9(5):23–5. DOI : 10.36106/ijsr
[Google Scholar] - Prakash J, Golgeri MS, Haleem S, Kausher H, Gupta P, Singh P, et al. A comparative study of success rates of post and core treated anterior and posterior teeth using cast metal posts. Cureus. 2022;14(10):e30735. doi: 10.7759/cureus.30735
[Google Scholar] - Al-Ansari A. Which type of post and core system should you use?. Evid Based Dent. 2007;8(2):42. doi: 10.1038/sj.ebd.6400489
[Google Scholar] - 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(3):243–7.
- Amaral FR, Jassé FF, Calixto LR, Silva Júnior JE, Neto CS, Andrade M, Campos E. Direct anatomical posts for weakened roots: The state of knowledge. Sci Dent J. 2015;2(3):13–20.
- Rocha AT, Gonçalves LM, Vasconcelos AJ, Matos Maia Filho E, 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. 2017:2017:5010712. doi:
- 1155/2017/5010712.
- Satija R, Singla MG. Customizing the prefabricated fiber post: A case report. IJCE. 2021;6(3):176–80. DOI:10.18231/j.ijce.2021.038
[Google Scholar] - Chandekar SV, Singh SH, Podar RS, Babel SN, Shah JJ. Rehabilitation of endodontically treated tooth with anatomic post and core: A novel approach. Dent Res Pract. 2019;2(1). DOI:10.15761/JDRR.1000107
[Google Scholar] - Sharma S, Attokaran G, Singh KS, Jerry JJ, Ahmed N, Mitra N. Comparative evaluation of fracture resistance of glass fiber reinforced, carbon, and quartz post in endodontically treated teeth: An: in-vitro study. J Int Soc Prev Community Dent. 2016;6(4):373–
- doi: 10.4103/2231-0762.186801
[Google Scholar] - Elsubeihi ES, Aljafarawi T, Elsubeihi HE. State of the art contemporary prefabricated fiber-reinforced posts. Open Dent J. 2020;14(1):313–23. DOI: 10.2174/1874210602014010313
[Google Scholar] - Luthria A, Srirekha A, Hegde J, Karale R, Tyagi S, Bhaskaran S. The reinforcement effect of polyethylene fibre and composite impregnated glass fibre on fracture resistance of endodontically treated teeth: An: In vitro study. J Conserv Dent. 2012;15(4):372–6. doi: 10.4103/0972-0707.101914
[Google Scholar] - Aslam S, Moyin S, Thayyil S, Pulyodan MK, Jamal F. Ribbond fiber in root canal rehabilitation: A case report on reinforcement of weakened tooth structures. IP Indian J Conserv Endod. 2024;9(4):198–201. DOI:10.18231/j.ijce.2024.043
[Google Scholar] - Tomer AK, Kanika, Sachin Poonia, Khandelwal A, Dr Kanika. Bundled Glass Fiber Reinforced Composite Post A New Trend In Restoring Endodontically Treated Teeth: A Case Report. Int J Med Sci Curr Res. 2021;4(5):942–5.
- Li Q, Xu B, Wang Y, Cai Y. Effects of auxiliary fiber posts on endodontically treated teeth with flared canals. Oper Dent. 2011;36(4):380–9. doi: 10.2341/10-283-L
[Google Scholar] - Kakkar P, John GP, Sharma G. Biologic foundation restoration: a natural post and core for management. J Indian Prosthodont Soc. 2014;14(2):268–72. doi: 10.1007/s13191-013-0332-0
[Google Scholar] - Kakollu S, Thota MM, Tammineedi S, Basam LC. Rehabilitation of a mutilated maxillary central incisor using autogenous dentin post. J Conserv Dent . 2020;23(1):107–10. doi:
- 4103/JCD.JCD_89_20.
- Thakur DA, Patil S, Mohkar S et al. Dentin post: a new method for reinforcing the tooth. J Int Clin Dent Res Organ. 2016;8(1):67. DOI:10.4103/2231-0754.176260
[Google Scholar] - Babaji P, Khanna P, Shankar S et al. Biologic restoration: a treatment option for reconstruction of anterior teeth. J Clin Diagnostic Res. 2014;8(11):11–3. doi: 10.7860/JCDR/2014/10333.5143
[Google Scholar] - Swarupa CH, Sajjan GS, Bhupahupathiraju VL et al. biological dentin post for intra radicular rehabilitation of a fractured anterior tooth. J Clin Diagnostic Res. 2014;8(2)242–3. doi:
- 7860/JCDR/2014/7222.4070.
- Sanketh AK, Kalavathy N, Shetty V, Shetty MM, Kumar PR, Rajendran G. Biological post: an avant-garde approach. J Dent Sci. 2022;14(2):502–4. DOI:10.26715/rjds.14_2_2
[Google Scholar] - Sharma S, Gupta S, Jaiswal S. Biomimetic Post: An Innovative Approach to Reinforce Mutilated Maxillary Central Incisor- A Case Report. Int J Res Rev . 2023;10(10):472–6. DOI:10.52403/ijrr.20231059
[Google Scholar] - Falakaloglu S, Adıgüzel Ö, Özdemir G. Root canal reconstruction using biological dentin posts: A 3D finite element analysis. J Dent Res Dent Clin Dent Prospects. 2019;13(4):274–80. doi:
- 15171/joddd.2019.042.
- Ozgur E, Kilic K, Esim E, Aslan T, Kilinc HI, Yildirim S. Stress distribution of oval and circular fiber posts in a mandibular premolar: a three-dimensional finite element analysis. J Adv Prosthodont. 2013;5(4):434–9. doi: 10.4047/jap.2013.5.4.434
[Google Scholar] - Coniglio I, Magni E, Cantoro A, Goracci C, Ferrari M. Push-out bond strength of circular and oval-shaped fiber posts. Clin Oral Investig. 2011;15(2):667–72. doi: 10.1007/s00784-010-0448-0
[Google Scholar] - Muñoz C, Llena C, Forner L. Oval fiber posts do not improve adaptation to oval-shaped canal walls. J Endod. 2011;37(10):1386–
- doi: 10.1016/j.joen.2011.07.003
[Google Scholar] - Scotti N, Forniglia A, Bergantin E, Paolino DS, Pasqualini D, Berutti E. Fibre post adaptation and bond strength in oval canals. Int Endod J. 2014;47(4):366–72. doi: 10.1111/iej.12156
[Google Scholar] - Lopes LD, da Silva Pedrosa M, Oliveira LB, da Silva Costa SM, Lima LA, do Amaral FL. Push-out bond strength and failure mode of single adjustable and customized glass fiber posts. Saudi Dent J. 2021;33(8):917–22. doi: 10.1016/j.sdentj.2021.09.003
[Google Scholar]