Influence of Storage Time and Cementation Strategies on Push-Out Bond Strength of Fiber Posts to Root Dentin

Ravi, Ravichandra; Mandava, Jyothi; Chalasani, Uma; Borugadda, Roopesh; Boddeda, Mohan Rao; Ghazanfaruddin,

doi:10.7860/jcdr/2017/29866.10924

Cited by 3 publications

(3 citation statements)

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“…This property along with the use of the resin luting cements for cementation provided a perfect bond between dentin and fibre post allowing uniform stress distribution throughout the root dentin and therefore reducing the incidence of root fractures. (32,33,34,35) Commonly, the fiber posts are rounded in cross section, however, the oval root canals have been stated as a common configuration with a high percentage in some teeth. Oval fiber posts have been introduced in the market so that better adaptation and improved bond strength to the dentin canal walls can be achieved within the oval and flared canal shapes.…”

Section: Discussionmentioning

confidence: 99%

“…(36) The aim of this study was to evaluate the effect of different post techniques used with oval canals on the push-out bond strength between the fiber post and root canal dentin at different root canal levels. Mandibular human premolars with oval canals were selected in this study to simulate clinical conditions, (34) however, the human teeth represented a relatively large variation in morphology size and mechanical properties of the specimens. (37,38) This limitation has been overcome through standardization of the dimensions of the roots for the selected teeth, endodontic treatment and post space preparation with similar dimensions throughout all the selected teeth for all the tested groups.…”

Section: Discussionmentioning

confidence: 99%

“…This has been discussed in previous studies earlier in the literature. (34,51) Some authors stated that the apical bonding is critical as well due to difficult accessibility and cleaning within these narrow diameters, correspondingly the presence of gutta percha remnants hinder the bonding capability at this region. (52,53) Besides, incomplete polymerization of resin luting cements may be a factor in reduction of the push out bond strength in deeper apical areas.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Assessment of Push Out Bond Strength and Cement Thickness for Oval Root Canals Restored with Different Post Techniques

Elbanna

Emam

Sayed

2019

Egyptian Dental Journal

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Objectives: The aim of the present study was to evaluate the push out bond strength of fiber posts to oval shaped root canals using different post techniques and correlation of bond strength values to different cement thicknesses at different post level in different post techniques. Methods: A total of thirty-two recently extracted human mandibular first premolars with oval root canals were selected and stored in normal saline solution. The teeth were horizontally sectioned 2 mm coronal to the cementoenamel junction with a double-faced diamond disk in a slow-speed handpiece with copious coolant. Root canal treatment was done for all teeth using a standardized technique. The teeth were then randomly divided into four equal groups (n=8) according to the post and core system used: Group I: Single circular post technique, Group II: Relined post technique, Group III: Double circular post technique, Group IV: Oval post technique. For each sample, the roots were cut horizontally, perpendicular to the long axis of the root using low speed diamond saw under water coolant to obtain three 2 mm ± 0.1 thick root specimens representing cervical, middle and apical third of the root. The resin cement thickness around each specimen obtained after slicing were measured using scanning electron microscope (SEM) at eight standardized points around the circumference of the slice; between the canal wall and the fiber post perimeter. Each root slice was subjected to compressive loading at a crosshead speed of 1 mm/min via a computer controlled Universal testing machine to record the maximum failure load in Newton. The push out bond strength was calculated by dividing the recorded peak load by the surface area of each slice. Results: As regards to the mean push out bond strength values for the post techniques, there was a statistically significant difference between mean push out bond strength of different post techniques where oval post technique showed the statistically significant highest mean push out bond strength. Relined technique showed statistically significant lower mean value followed by double circular technique. Single circular technique showed the statistically significantly lowest (3856)

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of Push Out Bond Strength and Cement Thickness for Oval Root Canals Restored with Different Post Techniques

Elbanna

Emam

Sayed

2019

Egyptian Dental Journal

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Relationship between the Depth of Penetration and Fracture Resistance of Various Sealers: A Comparative Study

Kakani

Chandrasekhar

Tummala

et al. 2021

The Journal of Contemporary Dental Practice

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A Comparative in vitro Investigation on the Impact of Fiber Insertion on Cuspal Deflection of Maxillary Premolars Restored with Various Types of Bulk Fill Direct Composite Restorations

Habeeb,

Abdul-Ameer

2023

Al-Rafidain J Med Sci

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Background: Polymerization shrinkage remains a significant disadvantage that makes the use of direct composite restorations difficult. Objective: To evaluate how well a fiber insert and multiple bulk-fill direct restorations worked on the cuspal deflection of MOD cavities in premolar teeth using a Dino-Lite digital microscope and computer software. Methods: In sixty fresh maxillary first premolars, large MOD cavities were created. Teeth were randomly divided into six groups of ten based on restorative materials. SonicFill®, Beautifil Bulk®, and Filtek® Bulk Fill posterior restoratives were used in groups A1, B1, and C1, whereas groups A2, B2, and C2 used the same bulk composite with E-glass fiber (UFM, Dentapreg). Under a digital microscope, the intercuspal distance between two reference points on the cusp tips was measured before preparation, after preparation, 15 minutes after finishing restorations, and one month following incubation. Results: There was a significant difference between the groups after 15 minutes of restoration, but no significant differences following cavity preparation or one month of incubation. CD values were considerably higher after 15 minutes of restoration in groups restored with bulk fill only. Beautifil Bulk Fill restorative resulted in greater cuspal deflection than the other groups. The CD values in each group were significantly higher 15 minutes after restoration compared to cavity preparation and a month of incubation. Conclusion: Using inserts, cuspal deflection in MOD cavities can be significantly minimized, and stress release usually occurs after water incubation.

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Influence of Storage Time and Cementation Strategies on Push-Out Bond Strength of Fiber Posts to Root Dentin

Cited by 3 publications

References 0 publications

Assessment of Push Out Bond Strength and Cement Thickness for Oval Root Canals Restored with Different Post Techniques

Assessment of Push Out Bond Strength and Cement Thickness for Oval Root Canals Restored with Different Post Techniques

Relationship between the Depth of Penetration and Fracture Resistance of Various Sealers: A Comparative Study

A Comparative in vitro Investigation on the Impact of Fiber Insertion on Cuspal Deflection of Maxillary Premolars Restored with Various Types of Bulk Fill Direct Composite Restorations

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