Effects of threaded post placement on strain and stress                distribution of endodontically treated teeth

Santos-Filho, Paulo César Freitas; Soares, Paulo Vinícius; Reis, Bruno Rodrigues; Veríssimo, Crisnicaw; Soares, Carlos José

doi:10.1590/s1806-83242013000400003

Cited by 16 publications

(6 citation statements)

References 22 publications

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“…A fracture or loss of restauration may conduct to reinfection and the need of a new antibacterial intervention. The restoration of endodontically treated teeth may be usually complex because of the destruction of the crown, partial or totally, due to decay, traumatic dental injuries or the presence of previous extensive restorations ( [109][110][111][112][113][114][115].…”

Section: Restoration Of Endodontically Treated Teethmentioning

confidence: 99%

“…Overpreparation aiming thicker fiber post is not recommended. The crown fracture risk depends on the amount of tooth structure loss and the capacity of the tooth to resist occlusal forces (109)(110)(111)(112)(113)(114)(115). The weekened teeth after several endodontic procedures should be carefully considered to select the restorative procedure.…”

Section: Restoration Of Endodontically Treated Teethmentioning

confidence: 99%

“…The use of composite resin to restore the adaptation between fiber post to root dentin is strongly recommended. The choice of proper irrigants to clean the root canal before post cementation, resin cement selection using material that can polymerize in deep areas and a light curing unit with sufficient light irradiance to cure the resin cement, are essential to produce adequate post fixation (115).…”

Section: Restoration Of Endodontically Treated Teethmentioning

confidence: 99%

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Common Operative Procedural Errors and Clinical Factors Associated with Root Canal Treatment

et al. 2017

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Operative procedural errors must be well analyzed in order to avoid influence negatively the root canal treatment (RCT) prognosis. The successful RCT prevents tooth loss and avoids pain and apical periodontitis. This review aimed to categorize common operative procedure errors and clinical factors associated with RCT. Based on this, will be approached common errors of procedures within the clinical operative sequence: endodontic treatment planning, pulp and periapical disease diagnosis, anaesthesia, access cavity preparation, isolation with rubber dam, root canal preparation, root canal filling and retreatment, restoration of endodontically treated teeth, postoperative pain, follow up of endodontically treated teeth. The professional must remind that in each phase of RCT an operative error may have adverse implication on prognosis, and these errors characterize risk factors to failure. The knowledge of probable operative procedural errors and its consequences are essentials to avoid future problems to the tooth health.

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Section: Restoration Of Endodontically Treated Teethmentioning

confidence: 99%

Section: Restoration Of Endodontically Treated Teethmentioning

confidence: 99%

Section: Restoration Of Endodontically Treated Teethmentioning

confidence: 99%

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Common Operative Procedural Errors and Clinical Factors Associated with Root Canal Treatment

et al. 2017

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“…There was no obvious stress concentration in the dentin except in the load Table 4 Dentin RR values of different dentin wall thicknesses application and boundary restraint regions. At a bone level of 1/3 with a dentin wall thickness of 2.5 mm, the maximum von Mises stress was 454.7 MPa in the dentin; all stress values were higher than the dentin stress limit, which may increase the chance of root fracture [15]. In periodontitis patients, endodontic treatment of teeth induces more alveolar bone loss than that present in untreated teeth [16].…”

Section: Alveolar Bone Levelmentioning

confidence: 93%

Finite element analysis to study the effects of using CAD/CAM glass-fiber post system in a severely damaged anterior tooth

Chen

Feng

Zhang

et al. 2015

BME

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Abstract.To investigate the stress distribution of a severely damaged maxillary anterior tooth restored with a computer-aided design/computer-aided manufacturing (CAD/CAM) glass-fiber post system. Twelve models were fabricated with different alveolar bone levels and cervical dentin wall thicknesses and studied using a two-dimensional finite element method. A force of 100 N was applied to the lingual surface of the crown at 45 degrees, and the maximum von Mises stress was calculated. A higher stress level was observed in the dentin than in the post and crown. With the reduction of dentin thickness, the maximum von Mises stress in the dentin increased slightly to a peak at a thickness of 1.5 mm, followed by a slight decrease at a thickness of 1.0 mm. However, the relative ratio (RR) values did not show a large difference (RR > 80%). Meanwhile, a large difference in RR values was observed with a change in bone level (RR < 80%). When using a CAD/CAM glass-fiber post system, the maximal von Mises stress was significantly affected by the bone level, rather than by the dentin thickness. Moreover, this system may be applied to the treatment of a maxillary anterior tooth with a bone level of only 2/3.

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“…Endodontically treated teeth with excessive loss of tooth structure are frequently restored using fiber posts. The elastic modulus of these posts is similar to dentin, which allows favorable stress distribution [ 1 ] and reduces the risk of root fractures. The use of translucent fiber posts has recently increased because their light-transmission properties [ 2 ] enhance the aesthetic outcomes of final restorations.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Apical Microleakage of Dual-Curing Resin Cements with Fluid-Filtration and Dye Extraction Techniques

et al. 2015

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BackgroundEndodontically treated teeth with excessive loss of tooth structure are frequently restored using fiber posts. In this in vitro study, the apical leakage of self- and dual-activated curing modes for dual-curing resins cementing a translucent fiber post was evaluated using computerized fluid filtration meter and dye extraction method.Material/MethodsOne hundred and four extracted human maxillary incisors with single root and canal were used. Experimental samples embedded in a closed system were divided into 4 groups (n=20) according to 2 dual-curing luting systems, with 2 different curing modes (either with self- or light-activation): (1) Panavia F 2.0 with self-cure, (2) Panavia F 2.0 with light-activation, (3) Clearfill SA with self-cure, and (4) Clearfill SA with light activation. Twenty-four teeth served as negative and positive controls. Translucent fiber posts were luted in the roots except in the control groups.ResultsStatistical analysis indicated no significant difference in leakage among groups (p>0.05) with 4.12×10−4 (Panavia self-cure), 4.55×10−4 (Clearfill SA self-cure), 5.17×10−4 (Panavia dual-cure), and 5.59×10−4 (Clearfill SA dual-cure) in fluid-filtration method. Absorbance values for dye-extraction method were 266 nanometer (nm) (Panavia self-cure), 268 nm (Clearfill SA self-cure), 270 nm (Panavia dual-cure), and 271 nm (Clearfill SA dual-cure), in which difference among the groups were not statistically significant (p>0.05). When comparing the leakage, assessment methods results showed no statistically significant difference between the tested evaluation techniques (p>0.05).ConclusionsLight- and self-activation curing modes of Panavia F 2.0 and Clearfill SA perform similar to each other in a closed system.

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Effects of threaded post placement on strain and stress distribution of endodontically treated teeth

Cited by 16 publications

References 22 publications

Common Operative Procedural Errors and Clinical Factors Associated with Root Canal Treatment

Common Operative Procedural Errors and Clinical Factors Associated with Root Canal Treatment

Finite element analysis to study the effects of using CAD/CAM glass-fiber post system in a severely damaged anterior tooth

Comparison of Apical Microleakage of Dual-Curing Resin Cements with Fluid-Filtration and Dye Extraction Techniques

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