The effect of two endodontic sealers and interval before post-preparation and cementation on the bond strength of fiber posts

He, Yun; Wu, Juan; Ji, Mengzhen; Chen, Xuan; Xiong, Kaixin; Yang, Xueqin; Qiao, Xuguang; Hu, Hantao; Gao, Yuan; Zou, Ling

doi:10.1007/s00784-021-03920-w

Cited by 6 publications

(5 citation statements)

References 29 publications

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“…The findings in our research disagreed with Yuanli et al, [8] and Nesello et al, [25] they recorded insignificant difference between the resin and bioceramic based sealers when bonding fiber posts with self-adhesive resin cements. This difference may stem from the design of the study, types of sealers and the sample size.…”

Section: Discussioncontrasting

confidence: 99%

“…During bonding of fiber posts, its retention might be influenced by the type of used sealer. [8] Sealers are used to facilitate the seal of inaccessible lateral and apical accessory canals due to their flowability [9] and to offer a good adaptability to root canal dentin [10] . Bio ceramic sealers are more popular nowadays because they are able to bond to dentin by the creation of a hydroxyapatite layer and has a high flowability to enter and seal lateral and accessory canals.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of bond strength of fiber posts in root canal treated teeth obturated with two different sealers (An Invitro study)

elkhodary¹,

Elbasty²

2023

Egyptian Dental Journal

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Objective: Evaluation of the influence of two endodontic sealers on the push-out bond strength of fiber posts bonded by a self-adhesive resin cement.Materials and methods: 42 premolars with average root length of 17±1 mm were chosen. Teeth were cut 2mm above the CEJ. Endodontic treatment was performed then teeth were distributed into 2 equal groups (n=16) as follows; Group_1: Teeth obturated by X4 gutta-percha and AdSeal sealer. Group_2: Teeth obturated by X4 gutta-percha and CeraSeal sealer. After 7 days, post-space preparation was done leaving 4-5 mm apical seal. Post space was rinsed with 5% NaOCl then 17% EDTA. Posts were salinized then bonded using Rely X U200 self-adhesive resin cement. Teeth were placed in epoxy-resin then sectioned perpendicular to the root long axis. 3 specimens 2mm thick were obtained corresponding to every root third. Push out test was done. Maximum load to failure was recorded in Newton(N) then converted into MPa. Five teeth were sectioned longitudinally following post space preparation and examined using (SEM) at 1000x.Results: Gr_1 recorded statistically significantly higher mean value compared to Gr_2 as indicated by two-way ANOVA. Apical region group recorded statistically significant highest mean value followed by middle region group while cervical region group recorded statistically significant lowest mean value as indicated by two-way ANOVA. Pair-wise Tukey's post-hoc test showed non-significant difference between middle and apical regions.Conclusions: Bioceramic sealers reduced the bond-strength between root dentin and fiber posts when self-adhesive luting agent was utilized.

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Section: Discussioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of bond strength of fiber posts in root canal treated teeth obturated with two different sealers (An Invitro study)

elkhodary¹,

Elbasty²

2023

Egyptian Dental Journal

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“…The calcium hydroxide in the sealers reacts with the phosphate ions to produce hydroxyapatite and tag-like structures, making removal of the sealer a challenge during post-space preparation. 23,51 The current study showed a predominance of adhesive failure after the push-out test approved by SEM, with 50% at the cement/dentin interface in both tested groups and 10% at the cement/post interface. (Table 5 and Fig.…”

Section: Discussionmentioning

confidence: 56%

“…56 As the Epoxidin Duo sealer was rigid and brittle, the force to produce a post-space caused the material to fracture into tiny pieces, breaking the connection at the interface where G-Cem relied primarily on micromechanical retention. 23 Also, due to the high contact angle's facilitation of removal and less sealer residue left on the canal walls, the dentinal tubule penetration is minimal. However, the adhesive strength of root dentin can be strengthened mainly by the affinity between epoxy-resin-based sealers and resin materials.…”

Section: Discussionmentioning

confidence: 99%

“…All slices were inspected under a SEM (Quanta FEG 250, FEI, Oregon, USA) at 150× magnification following pushed-out testing to determine failure modes. 23 Failures could be adhesive between the fiber post and cement; adhesive between the cement and root dentin; cohesive in dentin; cohesive in the cement; and mixed when the failure occurred at both the fiber post/resin cement interface and the cement/root dentin interface in the same specimen.…”

Section: Failure Mode Analysismentioning

confidence: 99%

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Effect of Endodontic Bioceramic Sealer versus Resin Based Sealer in The Bond Strength of Fiber Posts Luted with Resin Cement to Root Dentin (An In-Vitro Study)

Sabry,

Beleidy,

Shaker

2023

Egyptian Dental Journal

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Purpose: To evaluate Well-Root ST and Expoxidin Duo sealers' contact angle, dentinal tubule penetration, and their impact on fiber post-bond strength. Materials and Methods:Fifty-eight maxillary central incisor teeth were collected and decoronated. Ten teeth were longitudinally split into 20 segments and treated with bioceramic (Well-Root ST) and epoxy resin-based (Epoxidin Duo) sealers (n=10 per group) to evaluate the contact angle. Forty-eight teeth were divided into two groups (n=24) based on the same sealers used for obturation. Both obturated teeth groups were subdivided into two subgroups based on the evaluating test; 14 specimens were assessed for dentinal tubule penetration using a scanning electron microscope (SEM), and 10 specimens were restored with fiber posts and cross-sectioned to evaluate the push-out bond strength using a universal testing machine. Failure mode was determined for pushed-out slices under a SEM. Independent t-test was used to compare two different groups. One-Way ANOVA and Tukey's Post Hoc tests were used for multiple comparisons. P < 0.05 was the significance level.Results: Epoxidin Duo group showed a significantly higher contact angle (56.78 ± 0.68 o ) than Well-Root ST group (53.25 ± 0.25 o ). Well-Root ST group showed significantly higher dentinal tubule penetration (10.40 ± 1.05 µm) than Epoxidin Duo group (7.61 ± 1.08 µm). Both groups showed a non-significant push-out bond strength difference. Conclusions: Bioceramic sealer showed higher wettability and dentinal tubule penetration than epoxy resin-based sealer. However, both sealers affected the fiber post-bond strength at various regions throughout the root canal length without influencing the total bond strength.

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Effect of Post Sizes and Citric Acid Treatment on the Bond Strength of Fiber Posts Using Self-Etch Resin Cement in Calcium Silicate–Based Sealer Treated Teeth

Klanliang,

Dewi,

Tangwattanachuleeporn

et al. 2024

European Journal of General Dentistry

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Objectives This study evaluated the effects of different post sizes and citric acid (CA) treatment on the bond strength of fiber posts cemented with self-etch resin cement in teeth obturated with calcium silicate–based sealer. Materials and Methods Seventy mandibular premolars were collected and randomly distributed to either a control group (no sealer) or experimental groups obturated with calcium silicate–based sealer (iRoot SP). The experimental groups were classified by post sizes—1.25 mm (no. 1), 1.375 mm (no. 2), and 1.50 mm (no. 3)—and the irrigants used (distilled water [DW] or CA). Prefabricated fiber posts were fixed using NX3 self-etch resin cement. Push-out bond strength was tested in the coronal and middle sections of the roots. Statistical Analysis The data were analyzed using a one-way analysis of variance (ANOVA), followed by a post hoc Duncan test. Results In the coronal section, post size no. 1 with DW showed significantly lower bond strength compared to the other experimental groups (p < 0.05). In the middle section, the larger post sizes (nos. 2 and 3) with CA treatment resulted in a significant increase in bond strength compared to the control group (p < 0.05). Conclusions iRoot SP negatively affected bond strength in the middle section of the canal. However, using larger post sizes (nos. 2 and 3) with CA treatment improved bond strength in the middle section.

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The effect of two endodontic sealers and interval before post-preparation and cementation on the bond strength of fiber posts

Cited by 6 publications

References 29 publications

Comparison of bond strength of fiber posts in root canal treated teeth obturated with two different sealers (An Invitro study)

Comparison of bond strength of fiber posts in root canal treated teeth obturated with two different sealers (An Invitro study)

Effect of Endodontic Bioceramic Sealer versus Resin Based Sealer in The Bond Strength of Fiber Posts Luted with Resin Cement to Root Dentin (An In-Vitro Study)

Effect of Post Sizes and Citric Acid Treatment on the Bond Strength of Fiber Posts Using Self-Etch Resin Cement in Calcium Silicate–Based Sealer Treated Teeth

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