Remaining Coronal Dentin and Risk of Fiber-Reinforced Composite Post-Core Restoration Failure: A Meta-analysis

An, Yang; Lamichhane, Aashwini; Xu, Chun

doi:10.11607/ijp.4157

Cited by 36 publications

(28 citation statements)

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“…However, in the restoration of extensively debilitated teeth, it is certain that they commonly require the use of an intracanal system with the main purpose of providing the prosthetic part with retention and stability. Generically, the use of intraradicular retainers may be classified into two categories: Cast cores and prefabricated posts [5][6] . In certain clinical situations, the selection of the type of retainer depends on various factors, among them: The degree of tooth destruction; localization of the tooth in the arch; root morphology; periodontal conditions; extension of the dental prosthesis and occlusal stress 7 .…”

Section: Introductionmentioning

confidence: 99%

Effect of restoration technique on stress distribution in extensively destroyed premolars: a finite element analysis study

Negreiros

Regis

Pontes

et al. 2017

RGO, Rev. Gaúch. Odontol.

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Objective Results Under the axial load, a higher concentration of stresses was observed around the cast post (166 MPa). In the oblique load simulation, there was a concentration of stresses on the buccal root wall, internally and externally, in the tooth restored with cast post (222 MPa). In both load directions, the glass fiber post dissipated the stress received with greater uniformity (55 to 111 MPa). ConclusionThese data suggested that from the biomechanical point of view, the use of a glass fiber post and composite resin core could be more advantageous than the cast post technique for a mandibular single-rooted premolar tooth.

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Section: Introductionmentioning

confidence: 99%

Effect of restoration technique on stress distribution in extensively destroyed premolars: a finite element analysis study

Negreiros

Regis

Pontes

et al. 2017

RGO, Rev. Gaúch. Odontol.

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“…The absence of coronal wall might increase the risk of restoration failure 30 . The study of Akkayan 2 (2004) showed no significant difference between 1 and 1.5 mm ferrules length in specimens restored with quartz fibers post and resin composite core.…”

Section: Discussionmentioning

confidence: 99%

Effect of different composite core materials on fracture resistance of endodontically treated teeth restored with FRC posts

Panitiwat

Salimee

2017

J. Appl. Oral Sci.

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Objective This study evaluated the fracture resistance of endodontically treated teeth restored with fiber reinforced composite posts, using three resin composite core build-up materials, (Clearfil Photo Core (CPC), MultiCore Flow (MCF), and LuxaCore Z-Dual (LCZ)), and a nanohybrid composite, (Tetric N-Ceram (TNC)).Material and Methods Forty endodontically treated lower first premolars were restored with quartz fiber posts (D.T. Light-Post) cemented with resin cement (Panavia F2.0). Samples were randomly divided into four groups (n=10). Each group was built-up with one of the four core materials following its manufacturers’ instructions. The teeth were embedded in acrylic resin blocks. Nickel-Chromium crowns were fixed on the specimens with resin cement. The fracture resistance was determined using a universal testing machine with a crosshead speed of 1 mm/min at 1350 to the tooth axis until failure occurred. All core materials used in the study were subjected to test for the flexural modulus according to ISO 4049:2009.Results One-way ANOVA and Bonferroni multiple comparisons test indicated that the fracture resistance was higher in the groups with CPC and MCF, which presented no statistically significant difference (p>0.05), but was significantly higher than in those with LCZ and TNC (p<0.05). In terms of the flexural modulus, the ranking from the highest values of the materials was aligned with the same tendency of fracture loads.Conclusion Among the cores used in this study, the composite core with high filler content tended to enhance fracture thresholds of teeth restored with fiber posts more than others.

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“…A post is not a good substitute for lack of natural tooth structure within the ferrule tooth/core/post complex. The quantity of natural tooth structure within the ferrule tooth/core/post complex is more important than a post in determining whether an abutment, on which a crown is cemented, will eventually fracture away from the root 2111213141516…”

Section: The Ferrule Effectmentioning

confidence: 99%

“…However, some experiments show that the amount of natural ferrule tooth structure in an abutment is much more important than the presence of a post, in determining whether or not a ferrule/tooth/core/post complex will fracture 21112. This implies that retention of a core by strong supra-ferrule-margin natural tooth structure, containing mechanical undercuts or bonding loci to retain the core, is the most important factor in determining whether the core will be retained for a clinically useful amount of time.…”

Section: Purpose Of the Postmentioning

confidence: 99%

Post and core build-ups in crown and bridge abutments: Bio-mechanical advantages and disadvantages

Mamoun¹

2017

J Adv Prosthodont

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Dentists often place post and core buildups on endodontically treated abutments for crown and bridge restorations. This article analyzes the bio-mechanical purposes, advantages and disadvantages of placing a core or a post and core in an endodontically treated tooth and reviews literature on post and core biomechanics. The author assesses the scientific rationale of the claim that the main purpose of a post is to retain a core, or the claim that posts weaken teeth. More likely, the main function of a post is to help prevent the abutment, on which a crown is cemented, from fracturing such that the abutment separates from the tooth root, at a fracture plane that is located approximately and theoretically at the level of the crown (or ferrule) margin. A post essentially improves the ferrule effect that is provided by the partial fixed denture prosthesis. This paper also explores the difference between bio-mechanical failures of crowns caused by lack of retention or excess taper, versus failures due to a sub-optimal ferrule effect in crown and bridge prostheses.

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Remaining Coronal Dentin and Risk of Fiber-Reinforced Composite Post-Core Restoration Failure: A Meta-analysis

Cited by 36 publications

References 0 publications

Effect of restoration technique on stress distribution in extensively destroyed premolars: a finite element analysis study

Effect of restoration technique on stress distribution in extensively destroyed premolars: a finite element analysis study

Effect of different composite core materials on fracture resistance of endodontically treated teeth restored with FRC posts

Post and core build-ups in crown and bridge abutments: Bio-mechanical advantages and disadvantages

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