Advancing Adhesive Strategies for Endodontically Treated Teeth—Part II: Dentin Sealing Before Irrigation Increases Long‐Term Microtensile Bond Strength to Coronal Dentin

ABSTRACTObjectiveTo compare the long‐term microtensile bond strength (μTBS) to coronal dentin using pre‐endodontic dentin sealing (PEDS) and post‐endodontic adhesion (PEA) techniques under various endodontic irrigation protocols.Materials and MethodsTen study groups (n = 10) were established based on the timing of adhesive application (PEDS versus PEA) and irrigation protocol: distilled water (control), 3% sodium hypochlorite (NaOCl), 3% NaOCl followed by 17% ethylenediaminetetraacetic acid (EDTA), 3% NaOCl followed by 17% EDTA and 2% chlorhexidine, and a mixture of 3% NaOCl and 9% etidronic acid (HEDP). Specimens underwent μTBS testing after a six‐month microspecimen aging period. Fracture patterns were analyzed, and adhesive interfaces were assessed using scanning electron microscopy (SEM). Statistical analysis employed a mixed linear regression model with a 5% significance level.ResultsPEDS consistently preserved high bond strength across all irrigation protocols (57.4–59.5 MPa), while PEA groups treated with endodontic irrigants resulted in significantly lower values (33.3–40.8 MPa; p < 0.001). No significant differences were observed within the PEDS groups (p > 0.05). SEM analysis revealed consistent hybrid layers in PEDS and PEA/Control groups, while PEA groups treated with endodontic irrigation solutions showed significant resin–dentin interface variations and interfacial gaps.ConclusionsThe PEDS technique preserved high and consistent μTBS regardless of the irrigation protocol, whereas endodontically irrigated PEA groups exhibited significantly reduced bond strength. PEDS offers a predictable approach to optimizing adhesive performance in endodontic‐restorative treatments.Clinical SignificanceIntegrating PEDS into routine endodontic‐restorative workflow is recommended to enhance long‐term bond strength to coronal dentin. The PEDS technique ensures consistent adhesive performance regardless of the endodontic irrigation protocol, enhancing restorative predictability and treatment success while preserving tooth structure.

Topics

No keywords indexed for this article. Browse by subject →

References

66

[1]

10.1111/j.1365-2591.2008.01540.x

[2]

10.1111/iej.13739

[3]

10.1111/jerd.13135

[4]

10.1016/j.joen.2005.09.014

[5]

Effect of sodium hypochlorite, ethylenediaminetetraacetic acid, and dual-rinse irrigation on dentin adhesion using an etch-and-rinse or self-etch approach

Matej Par, Tobias Steffen, Selinay Dogan et al.

Scientific Reports 10.1038/s41598-024-57009-x

[6]

10.1097/01.don.0000158233.59316.fe

[7]

10.1111/iej.12329

[8]

10.1111/iej.12424

[9]

10.1016/j.cden.2009.12.001

[10]

10.1016/j.actbio.2017.08.008

[11]

10.1111/j.1365-2591.2011.01872.x

[12]

Periapical status of endodontically treated teeth in relation to the technical quality of the root filling and the coronal restoration

H. A. RAY, M. TROPE

International Endodontic Journal 10.1111/j.1365-2591.1995.tb00150.x

[13]

10.1046/j.1365-2591.2002.00546.x

[14]

10.1111/iej.13796

[15]

10.1016/j.joen.2013.10.023

[16]

10.1016/j.jdsr.2020.08.004

[17]

10.1016/j.joen.2009.05.002

[18]

10.1016/j.jds.2022.11.007

[19]

Van Meerbeek B. "From Buonocore's Pioneering Acid‐Etch Technique to Self‐Adhering Restoratives. A Status Perspective of Rapidly Advancing Dental Adhesive Technology" Journal of Adhesive Dentistry (2020)

[20]

10.1111/jerd.13460

[21]

10.1155/2017/1930360

[22]

10.1016/j.joen.2006.07.001

[23]

10.1097/00004770-200405000-00013

[24]

10.1055/s-0039-1697412

[25]

10.5897/ajb11.164

[26]

Giovannone T. "Bond Strength to Deep Coronal Dentin: Effect of Bonding Strategies" Minerva Stomatologica (2007)

[27]

Colombo M. "Shear Bond Strength of One‐Step Self‐Etch Adhesives to Dentin: Evaluation of NaOCl Pretreatment" Journal of Clinical and Experimental Dentistry (2018)

[28]

Sharafeddin F. "The Effect of Titanium Tetrafluoride and Sodium Hypochlorite on the Shear Bond Strength of Methacrylate and Silorane Based Composite Resins: An in‐VitroStudy" Journal of Dentistry (2017)

[29]

10.1590/s1980-65232011000400012

[30]

10.1016/j.jdent.2005.01.008

[31]

10.5395/rde.2020.45.e44

[32]

10.5301/jabfm.5000240

[33]

10.1111/j.1747-4477.2010.00249.x

[34]

10.1042/bj3400539

[35]

10.1177/00220345010800101101

[36]

10.1177/00220345900690100501

[37]

Nikaido T. "Bond Strengths to Endodontically‐Treated Teeth" American Journal of Dentistry (1999)

[38]

10.5395/rde.2018.43.e14

[39]

10.1016/j.jdent.2009.11.006

[40]

10.4103/jcd.jcd_502_18

[41]

Pashley E. L. "Dentin Permeability: Sealing the Dentin in Crown Preparations" Operative Dentistry (1992)

[42]

10.1111/j.1708-8240.2005.tb00103.x

[43]

10.1016/j.jpor.2016.04.001

[44]

10.1016/j.jdsr.2021.05.004

[45]

10.1016/j.joen.2009.01.001

[46]

10.1016/j.jare.2012.01.004

[47]

10.1016/j.jds.2013.08.001

[48]

10.1111/eos.12938

[49]

10.1016/j.ijadhadh.2019.102419

[50]

10.1007/s10266-014-0174-1

Showing 50 of 66 references

Metrics

11

Citations

66

References

Details

Published: Apr 17, 2025
Vol/Issue: 37(7)
Pages: 1865-1881
License: View

Authors

J

Joana A. Marques

Institute of Endodontics, Faculty of Medicine University of Coimbra Coimbra Portugal; Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine University of Coimbra Coimbra Portugal

R

Rui I. Falacho

Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine University of Coimbra Coimbra Portugal; Department of Preventive and Restorative Sciences University of Pennsylvania School of Dental Medicine Philadelphia Pennsylvania USA

G

Gabriela Almeida

Dentistry Department, Faculty of Medicine University of Coimbra Coimbra Portugal

F

Francisco Caramelo

Center for Innovative Biomedicine and Biotechnology (CIBB) University of Coimbra Coimbra Portugal; Laboratory of Biostatistics and Medical Informatics, Faculty of Medicine University of Coimbra Coimbra Portugal

J

João Miguel Santos

Institute of Endodontics, Faculty of Medicine University of Coimbra Coimbra Portugal; Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine University of Coimbra Coimbra Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR) and Center of Investigation on Environment Genetics and Oncobiology (CIMAGO) Faculty of Medicine and Clinical Academic Center of Coimbra (CACC) Coimbra Portugal

J

João Rocha

Department of Chemistry CICECO ‐ Aveiro Institute of Materials, University of Aveiro Aveiro Portugal

M

Markus B. Blatz

Department of Preventive and Restorative Sciences University of Pennsylvania School of Dental Medicine Philadelphia Pennsylvania USA

J

Joao Carlos Ramos

Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine University of Coimbra Coimbra Portugal; Institute of Operative Dentistry, Faculty of Medicine University of Coimbra Coimbra Portugal

P

Paulo J. Palma

Institute of Endodontics, Faculty of Medicine University of Coimbra Coimbra Portugal; Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine University of Coimbra Coimbra Portugal

Cite This Article

Joana A. Marques, Rui I. Falacho, Gabriela Almeida, et al. (2025). Advancing Adhesive Strategies for Endodontically Treated Teeth—Part II: Dentin Sealing Before Irrigation Increases Long‐Term Microtensile Bond Strength to Coronal Dentin. Journal of Esthetic and Restorative Dentistry, 37(7), 1865-1881. https://doi.org/10.1111/jerd.13467

Advancing Adhesive Strategies for Endodontically Treated Teeth—Part II: Dentin Sealing Before Irrigation Increases Long‐Term Microtensile Bond Strength to Coronal Dentin

You May Also Like