Can intra-radicular cleaning protocols increase the retention of fiberglass posts? A systematic review

Oliveira, Lilian Vieira; Maia, Thaís Souza; Zancopé, Karla; Menezes, Murilo de Souza; Soares, Carlos José; Moura, Camilla Christian Gomes

doi:10.1590/1807-3107bor-2018.vol32.0016

Cited by 25 publications

(43 citation statements)

References 56 publications

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“…Several studies have compared the two post systems with respect to their ability to reduce the risk of root fracture and have described the best techniques and protocols for use of posts, including post length and diameter and adhesive system. These studies have used different methods, such as application of oblique load and cyclic load, but all results converge positively to the same conclusion: the use of glass-fiber posts reduces the risk of root fracture, thus increasing the success of restoration 5,7,[9][10][11][12][13][14] . However, many professionals who advocate the use of cast metal posts and cores raise the question of how copings for metal-ceramic crowns cemented to glass-fiber posts rebased with composite resin would behave under tensile stress.…”

Section: Introductionmentioning

confidence: 68%

Fracture resistance of metal-ceramic crown copings cemented to two types of intra-radicular posts

Henriques

Saguchi

Neto

et al. 2018

Rev. odontol. UNESP

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Introduction Endodontically treated teeth are more susceptible to root fracture than vital teeth. In order to reduce the risk of fracture, the use of intra-radicular posts and crowns is indicated. However, their own fracture resistance remains unclear. Objective To analyze the behavior of metal-ceramic crown copings cemented to two types of intra-radicular posts under tensile stress. Material and method Sixteen metal-ceramic crown copings cemented with zinc phosphate cement to cast metal posts and cores (group 1, n = 8) or with self-adhesive resin cement to glass-fiber posts rebased with composite resin (group 2, n = 8) were subjected to tensile testing after endodontic treatment and standardized preparation. Failure occurred when the crown coping and/or post-core assembly fractured and/or detached. Result In group 1, after the application of a mean tensile load of 46.83 N, 7 crown copings and metal cores separated as a whole, while in 1 specimen the coping detached from the metal core. In group 2, a mean tensile load of 127.68 N resulted in glass-fiber post fracture, and in 1 case the entire crown-post-core assembly was detached. Tensile strength differed significantly between the two groups (p = 0.0085). Conclusion Our findings suggest that metal-ceramic crown copings cemented with self-adhesive resin cement show strong adhesion to composite resin cores associated with glass-fiber posts, thus providing a safe alternative to the use of cast metal posts and cores.

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Section: Introductionmentioning

confidence: 68%

Fracture resistance of metal-ceramic crown copings cemented to two types of intra-radicular posts

Henriques

Saguchi

Neto

et al. 2018

Rev. odontol. UNESP

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“…Considering that for the installation of fiber posts is necessary to remove the smear layer present in the dentin wall due to possible interferences in adhesive strategies (15), it is interesting to compare the effect of the methods and moments of PSP on the amount of residual material in different root dentin depths. In the present study, the methods and the moments of PSP exerted influence on the amount of residues in the middle and apical thirds, which is probably related to anatomical characteristics.…”

Section: Discussionmentioning

confidence: 99%

“…A hermetic apical seal is necessary to avoid endodontic treatment failure as a result of reinfection. Another important point is related to the amount of filling material residues after PSP, which may negatively affect the bond strength between the dentin and adhesive systems used for post cementation (15).…”

Section: Introductionmentioning

confidence: 99%

Apical Displacement and Residual Root Canal Filling with Single-Cone After Post Space Preparation: A Micro-CT Analysis

et al. 2020

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The purpose of this study was to evaluate the presence of residues after post space preparation (PSP) and establish whether the apical displacement of the gutta-percha was affected by the moments and methods of PSP in teeth filled by the single-cone technique. The root canals of 20 bovine incisor teeth were instrumented with Reciproc and filled with single-cone and AH Plus. The specimens were divided into 4 groups according to the moment and method of PSP (n=5): immediate with drill, immediate with thermoplasticizer, delayed with drill and delayed with thermoplasticizer. Micro-CT scans were performed before and after the PSP for residues of the root canal filling (1) and analysis of apical displacement (2). Data were analyzed by using 2-way repeated measurement ANOVA (1) and 2-way ANOVA (2) followed by the Tukey’s test (a=0.05). Significance effect on the residues percentage remaining for methods (p=0.044), for moments (p=0.006), for thirds repetition (p<0.001), and for interaction between methods and thirds (p<0.001), and moments and thirds (p=0.044). Significance effect on the apical displacement of root canal filing was detected for methods (p=0.008), however no difference was found between moments (p=0.617). In general, PSP using drill resulted in more homogeneous root canal preparation, mainly when made immediately. For all other combinations between methods and moments for PSP, the middle and apical thirds presented significant higher residues remaining. Thermo method performed in both moments and the drill method performed immediately had displacement in the apical direction, representing extrusion of the root filling material.

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“…Several studies have evaluated the effect of dentin surface treatment on bond strength after cementation of intraradicular post, as the presence of smear layer and debris along the prepared root canal walls can also affect dentin adhesion 12 . Irrigating solution, such as EDTA 17%, used in this study before the cementation of the post, has its use consolidated in the literature, because it removes smear layer, but does not totally demineralize dentin, allowing the interaction of dentin inorganic substances with resin cement 13 , because the chemical characteristics of cement also influence the bond strength, the presence of the smear layer can be overcome by the possible chemical bond between dentin and the cement itself, which, in the case of U200 cement, is ensured by presence of trimellitic 4-methacry-loxythyl acidic monomers and phosphoric acid ether 14 .…”

Section: Discussionmentioning

confidence: 99%

Glass fiber post treatment – does it influence resin cement bond strength?

Borges

Teixeira

Montagner

et al. 2019

Rev. odontol. UNESP

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Introduction Glass-fiber posts are used in order to improve the retention of restorations in endodontically treated teeth. Objective To evaluate the bond strength of glass-fiber posts submitted to different surface treatments and cemented to the root canal dentin with self-adhesive resin cement. Material and method Thirty roots of human canines were prepared and divided according to two factors: surface treatments (silane, 35% hydrogen peroxide, or sodium bicarbonate) and root thirds (cervical and middle thirds). The glass-fiber posts were cemented with self-adhesive resin cement (RelyX U200). After 24 h, the specimens were prepared for microtensile bond strength test (hourglass format), fracture pattern and micromorphological assessment by scanning electronic microscopy, in order to measure the cement line. Result The data (MPa and µm) were submitted to two-way ANOVA and Tukey’s test (α = 5%). The surface treatments influenced the bond strength of the posts cemented with self-adhesive resin cement (p<0.00). The mean bond strength (standard deviations) differed according to the region of root dentin (p<0.00): the cervical region (Control: 19.16MPa (3.71); Silane: 25.65MPa (4.04); Hydrogen peroxide: 24.43MPa (3.16); Sodium bicarbonate: 37.42MPa (8.27)) showed higher bond strength values than the middle third of the root (Control: 14.66MPa (4.65); Silane: 12.52MPa (5.03); Hydrogen peroxide: 10.64MPa (3.33); Sodium bicarbonate: 10.87MPa (2.49)). Conclusion Treatment of the glass-fiber post surface with chemical and physical agents increased the bond strength of the cement-post-dentin interface in the cervical third and the treatment with Sodium bicarbonate showed better results in bond strength.

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Can intra-radicular cleaning protocols increase the retention of fiberglass posts? A systematic review

Cited by 25 publications

References 56 publications

Fracture resistance of metal-ceramic crown copings cemented to two types of intra-radicular posts

Fracture resistance of metal-ceramic crown copings cemented to two types of intra-radicular posts

Apical Displacement and Residual Root Canal Filling with Single-Cone After Post Space Preparation: A Micro-CT Analysis

Glass fiber post treatment – does it influence resin cement bond strength?

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