Promotion of Dentin Biomimetic Mineralization and Bonding Efficacy by Interfacial Control of an Experimental Citric Acid Dental Etching Agent.
ACS Appl Mater Interfaces
; 16(23): 29699-29715, 2024 Jun 12.
Article
de En
| MEDLINE
| ID: mdl-38815211
ABSTRACT
Resin-bonded restorations are the most important caries treatment method in clinical practice. Thus, improving the durability of dentin bonding remains a pressing issue. As a promising solution, guided tissue remineralization can induce the formation of apatite nanocrystals to repair defects in the dentin bonding interface. In this study, we present an experimental 20 wt % citric acid (CA) dental etching agent that removes the smear layer. After CA-etching, approximately 3.55 wt % residual CA formed a strong bond with collagen fibrils, reducing the interfacial energy between the remineralizing solution and dentin. CA helped achieve almost complete intrafibrillar and extrafibrillar mineralization after 24 h of mineralization. CA also significantly promoted poly(amidoamine)-induced dentin biomimetic mineralization. The elastic modulus and microhardness of remineralized dentin were restored to that of sound dentin. The remineralized interface reduced microleakage and provided a stronger, longer-lasting bond than conventional phosphate acid-etching. The newly developed CA dental etching agents promoted rapid dentin biomimetic mineralization and improved bonding efficacy through interfacial control, representing a new approach with clinical practice implications.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Acide citrique
/
Dentine
Limites:
Humans
Langue:
En
Journal:
ACS Appl Mater Interfaces
/
ACS appl. mater. interfaces (Online)
/
ACS applied materials & interfaces (Online)
Sujet du journal:
BIOTECNOLOGIA
/
ENGENHARIA BIOMEDICA
Année:
2024
Type de document:
Article
Pays de publication:
États-Unis d'Amérique