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Restoring an Extremely Destructed Tooth With Flared Root Canal Walls: A Case Report Publisher



Kermanshah H1, 2 ; Estedlal T3
Authors
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Authors Affiliations
  1. 1. Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Operative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Restorative Dentistry, School of Dentistry, Alborz University of Medical Sciences, Karaj, Iran

Source: Frontiers in Dentistry Published:2024


Abstract

Reconstructing damaged teeth is challenging when the remaining crown structure is limited, often requiring retention from the root canal using intracanal posts. The real challenge arises when the root canal walls are weak, and there’s a high risk of vertical root fracture due to the wedging forces of a rigid post. This case report presents a tooth with extremely flared (0.3mm) root canal walls, successfully restored with a newly introduced polymer made of polyether ether ketone (PEEK), with one-year follow-up. Due to its close elastic modulus to dentin, capacity to bond effectively to tooth structure, shockabsorbing properties, and thereby facilitating favorable stress distribution, utilizing this material for an intracanal post has the potential to mitigate the risk of fractures often associated with cast metal posts. It combines the good fitness of cast posts with the low modulus of elasticity and optical properties of prefabricated fiber posts. © 2024 The Authors.