Adhesive system properties and its behavior under simulated pulpal pressure in sound and caries-affected dentin and aging

SILVA, T.Â.N.I.A.M.A.R.A.D.A.; GONÇALVES, L.U.C.É.L.I.A.L.E.M.E.S.; PONTES, S.O.L.I.M.A.R.O.L.I.V.E.I.R.A.; Reis, Adriano Gonçalves dos; MENDONÇA, R.A.F.A.E.L.P.I.N.T.O.D.E.; SILVA, M.A.T.E.U.S.R.O.D.R.I.G.U.E.S.; Gonçalves, Stéfani

doi:10.1016/j.ijadhadh.2022.103139

Cited by 1 publication

(1 citation statement)

References 58 publications

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“…40 In our μ-TBS testing, we implemented a model that simulates pulpal pressure in a real clinical scenario. 50 Figure 6C presents a schematic drawing of the sample preparation and apparatus setup.…”

Section: Dental Adhesives' Mechanical and Bondingmentioning

confidence: 99%

Multifunctional Dental Adhesives Formulated with Silane-Coated Magnetic Fe₃O₄@m-SiO₂ Core–Shell Particles to Counteract Adhesive Interfacial Breakdown

Mokeem,

Martini Garcia,

Balhaddad

et al. 2024

ACS Appl. Mater. Interfaces

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The process of bonding to dentin is complex and dynamic, greatly impacting the longevity of dental restorations. The tooth/dental material interface is degraded by bacterial acids, matrix metalloproteinases (MMPs), and hydrolysis. As a result, bonded dental restorations face reduced longevity due to adhesive interfacial breakdown, leading to leakage, tooth pain, recurrent caries, and costly restoration replacements. To address this issue, we synthesized and characterized a multifunctional magnetic platform, CHX@SiQuac@Fe 3 O 4 @m-SiO 2 , to provide several beneficial functions. The platform comprises Fe 3 O 4 microparticles and chlorhexidine (CHX) encapsulated within mesoporous silica, which was silanized by an antibacterial quaternary ammonium silane (SiQuac). This platform simultaneously targets bacterial inhibition, stability of the hybrid layer, and enhanced filler infiltration by magnetic motion. Comprehensive experiments include X-ray diffraction, FT-IR, VSM, EDS, N 2 adsorption−desorption (BET), transmission electron microscopy, scanning electron microscopy, thermogravimetric analysis, and UV−vis spectroscopy. Then, CHX@SiQuac@Fe 3 O 4 @m-SiO 2 was incorporated into an experimental adhesive resin for dental bonding restorations, followed by immediate and long-term antibacterial assessment, cytotoxicity evaluation, and mechanical and bonding performance. The results confirmed the multifunctional nature of CHX@SiQuac@Fe 3 O 4 @m-SiO 2 . This work outlined a roadmap for (1) designing and tuning an adhesive formulation containing the new platform CHX@SiQuac@Fe 3 O 4 @m-SiO 2 ; (2) assessing microtensile bond strength to dentin using a clinically relevant model of simulated hydrostatic pulpal pressure; and (3) investigating the antibacterial outcome performance of the particles when embedded into the formulated adhesives over time. The results showed that at 4 wt % of CHX@SiQuac@Fe 3 O 4 @m-SiO 2 -doped adhesive under the guided magnetic field, the bond strength increased by 28%. CHX@SiQuac@Fe 3 O 4 @m-SiO 2 enhanced dentin adhesion in the magnetic guide bonding process without altering adhesive properties or causing cytotoxicity. This finding presents a promising method for strengthening the tooth/dental material interface's stability and extending the bonded restorations' lifespan.

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Section: Dental Adhesives' Mechanical and Bondingmentioning

confidence: 99%

Multifunctional Dental Adhesives Formulated with Silane-Coated Magnetic Fe₃O₄@m-SiO₂ Core–Shell Particles to Counteract Adhesive Interfacial Breakdown

Mokeem,

Martini Garcia,

Balhaddad

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

Adhesive system properties and its behavior under simulated pulpal pressure in sound and caries-affected dentin and aging

Cited by 1 publication

References 58 publications

Multifunctional Dental Adhesives Formulated with Silane-Coated Magnetic Fe₃O₄@m-SiO₂ Core–Shell Particles to Counteract Adhesive Interfacial Breakdown

Multifunctional Dental Adhesives Formulated with Silane-Coated Magnetic Fe₃O₄@m-SiO₂ Core–Shell Particles to Counteract Adhesive Interfacial Breakdown

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Adhesive system properties and its behavior under simulated pulpal pressure in sound and caries-affected dentin and aging

Cited by 1 publication

References 58 publications

Multifunctional Dental Adhesives Formulated with Silane-Coated Magnetic Fe3O4@m-SiO2 Core–Shell Particles to Counteract Adhesive Interfacial Breakdown

Multifunctional Dental Adhesives Formulated with Silane-Coated Magnetic Fe3O4@m-SiO2 Core–Shell Particles to Counteract Adhesive Interfacial Breakdown

Contact Info

Product

Resources

About

Multifunctional Dental Adhesives Formulated with Silane-Coated Magnetic Fe₃O₄@m-SiO₂ Core–Shell Particles to Counteract Adhesive Interfacial Breakdown

Multifunctional Dental Adhesives Formulated with Silane-Coated Magnetic Fe₃O₄@m-SiO₂ Core–Shell Particles to Counteract Adhesive Interfacial Breakdown