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Research Articles
Effect of irrigation protocols on smear layer removal, bond strength and nanoleakage of fiber posts using a self-adhesive resin cement
Rodrigo Stadler Alessi, Renata Terumi Jitumori, Bruna Fortes Bittencourt, Giovana Mongruel Gomes, João Carlos Gomes
Restor Dent Endod 2023;48(3):e28.   Published online July 27, 2023
DOI: https://doi.org/10.5395/rde.2023.48.e28
AbstractAbstract PDFPubReaderePub
Objectives

This study aimed to investigate the effect of the application method of 2% chlorhexidine (CHX) and its influence on the adhesion of fiberglass posts cemented with a self-adhesive resin cement.

Materials and Methods

Sixty human mandibular premolars were endodontically treated and divided into 5 groups (n = 12), according to the canal irrigant and its application method: 2 groups with conventional syringe irrigation (CSI)—2.5% sodium hypochlorite (NaOCl) (control) and 2% CHX— and 3 groups with 2% CHX irrigation/activation—by passive ultrasonic irrigation (PUI), Easy Clean file, and XP-Endo Finisher file. Two roots per group were evaluated for smear layer (SL) removal by scanning electron microscopy. For other roots, fiber posts were luted using a self-adhesive resin cement. The roots were sectioned into 6 slices for push-out bond strength (BS) (7/group) and nanoleakage (NL) (3/group). Data from SL removal were submitted to Kruskal-Wallis and Student-Newman-Keuls tests (α = 0.05). Data from BS and NL were evaluated by 2-way analysis of variance and Tukey’s test (α = 0.05).

Results

For SL removal and BS, the CHX irrigation/activation promoted better values than CSI with CHX (p < 0.05), but it was not significantly different from CSI with NaOCl (p > 0.05). For NL, the lowest values were obtained by the chlorhexidine irrigation/activation groups (p < 0.05).

Conclusions

Active 2% CHX irrigation can be used to improve the post space cleaning and adhesion before fiber post cementation with self-adhesive resin cements.

Citations

Citations to this article as recorded by  
  • Laser‐Activated Irrigation via Photon‐Induced Photoacoustic Streaming and Shock Wave Enhanced Emission on Smear Layer Removal Efficacy, Pushout Bond Strength, and Sealer Adaptation: A SEM Assessment
    Basil Almutairi, Fahad Alkhudhairy
    Microscopy Research and Technique.2025; 88(6): 1806.     CrossRef
  • The impact of passive ultrasonic irrigation on the bond strength of two different self-etch adhesives to human pulp chamber dentine: a laboratory investigation
    Mohammed Turky, Jukka Matinlinna, Monika Lukomska-Szymanska, Venkateshbabu Nagendrababu, Paul M. H. Dummer, Ahmad Abdel Hamid Elheeny, Nermin Alsayed Mahmoud
    BMC Oral Health.2025;[Epub]     CrossRef
  • The effect of nanoparticles incorporation titanium dioxide and zirconium oxide within self-adhesive resin cement on the push-out bond strength of the fiber post to the radicular dentin: An in vitro study
    Sawsan Hameed Al-Jubori, Maha Anwer AL-Murad
    Saudi Endodontic Journal.2025; 15(2): 162.     CrossRef
  • Evaluation of Microleakage Using Different Luting Cements in Kedo Zirconia Crowns: An In Vitro Assessment
    Guru Vishnu, Ganesh Jeevanandan
    Cureus.2024;[Epub]     CrossRef
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Retentive strength of different intracanal posts in restorations of anterior primary teeth: an in vitro study
Mahtab Memarpour, Fereshteh Shafiei, Maryam Abbaszadeh
Restor Dent Endod 2013;38(4):215-221.   Published online November 12, 2013
DOI: https://doi.org/10.5395/rde.2013.38.4.215
AbstractAbstract PDFPubReaderePub
Objectives

To determine the retentive strength and failure mode of undercut composite post, glass fiber post and polyethylene fiber post luted with flowable composite resin and resin-cement.

Materials and Methods

Coronal parts of 120 primary canine teeth were sectioned and specimens were treated endodontically. The teeth were randomly divided into 6 groups (n = 20). Prepared root canals received intracanal retainers with a short composite post, undercut composite post, glass fiber post luted with flowable resin or resin-cement, and polyethylene fiber post luted with flowable resin or resin-cement. After crown reconstruction, samples were tested for retentive strength and failure mode. Statistical analysis was done with one-way ANOVA and Tukey tests (p < 0.05).

Results

There were statistically significant differences between groups (p = 0.001). Mean bond strength in the undercut group was significantly greater than in the short composite post (p = 0.030), and the glass fiber post (p = 0.001) and the polyethylene fiber post group luted with resin-cement (p = 0.008). However, the differences between the undercut group and the groups with flowable composite as the luting agent were not significant (p = 0.068, p = 0.557). Adhesive failure was more frequent in the fiber post groups.

Conclusions

Although the composite post with undercutting showed the greatest resistance to dislodgement, fiber posts cemented with flowable composite resin provided acceptable results in terms of retentive strength and fracture mode.

Citations

Citations to this article as recorded by  
  • Evaluation of fracture resistance of three types of post utilized in restoration of root canal treated primary anterior teeth (an in-vitro study)
    Doaa K. Hassan, Nagwa A. Ghoname, Arafa M. Khatab, Samy M. El Safty, Nahed S. Shoker
    Tanta Dental Journal.2025; 22(1): 172.     CrossRef
  • Mechanical Properties and Clinical Success of Intracanal Posts in Primary Maxillary Anterior Teeth: A Systematic Review and Meta-analysis
    Selvakumar Haridoss, MS Muthu, Kavitha Swaminathan, Yamuna Shanmugam, Aksshaya Raghu, Krishnapillai Chandrababu Vignesh, Sunil Babu Kotha
    International Journal of Clinical Pediatric Dentistry.2024; 16(S3): S293.     CrossRef
  • Comparison of shear bond strength of different types of intracanal posts in restoring extensively damaged primary anterior teeth
    Shabnam Asghari Mollabashi, Shima Nourmohamadi, Afrooz Nakhostin
    Journal of Dental Research, Dental Clinics, Dental Prospects.2024; 18(2): 95.     CrossRef
  • Effects of glass fibers reinforced and non-reinforced composite resin on fracture behavior of severely destructed primary incisors and restored with post and core system
    Rizk El Agamy
    The Saudi Dental Journal.2024; 36(3): 451.     CrossRef
  • Evaluation of the Effects of Different Types of Resin Cement Systems on the Push-Out Bond Strength of the Fiber Post to Intracanal Dentin in Anterior Primary Teeth
    Ali Nozari, Boshra Rasoolzade, Zahra Jowkar, Seyed Ahmadreza Hamidi, Mohammad Jowkar, Murilo Baena Lopes
    International Journal of Dentistry.2023; 2023: 1.     CrossRef
  • Comparison of the Pull-Out Resistance of Grossly Decayed Primary Anterior Teeth Restored With Two Different Intracanal Posts: An In Vitro Study
    Ayham Hijaz, Mohamed K Altinawi, Imad Katbeh, Eyad Gergos, Gharawi Alhamzah
    Cureus.2023;[Epub]     CrossRef
  • Comparison of fracture resistance of primary incisor teeth restored with glass fiber post and reversed-oriented metal post – an in vitro study
    Hamideh Barghi, Samira Sharifi
    Dental Research Journal.2023;[Epub]     CrossRef
  • Clinical and radiographic comparative study to evaluate the efficacy of restoring destroyed primary incisors using two different techniques—A pilot study
    Seba Ibrahim, Abdul Wahab Nourallah
    Clinical and Experimental Dental Research.2020; 6(5): 537.     CrossRef
  • Coronal Microleakage of Teeth Restored with Cast Posts and Cores Cemented with Four Different Luting Agents after Thermocycling
    Maryam Mohajerfar, Kaveh Nadizadeh, Tabasom Hooshmand, Elaheh Beyabanaki, Hamid Neshandar Asli, Siamak Sabour
    Journal of Prosthodontics.2019;[Epub]     CrossRef
  • Evaluation of the effect of different post materials and adhesive systems on the bonding strength of short‐post technique for primary teeth
    Nihal Beldüz Kara, Tunahan Kanyilmaz, Soner Çankaya, Cankat Kara
    International Journal of Paediatric Dentistry.2018; 28(2): 239.     CrossRef
  • Effect of ultrasonic tip designs on intraradicular post removal
    Anny Carine Barros Aguiar, Daniely Amorim de Meireles, André Augusto Franco Marques, Emílio Carlos Sponchiado Júnior, Angela Delfina Bitencourt Garrido, Lucas da Fonseca Roberti Garcia
    Restorative Dentistry & Endodontics.2014; 39(4): 265.     CrossRef
  • 647 View
  • 7 Download
  • 11 Crossref
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