Can a new HEMA-free two-step self-etch adhesive improve dentin bonding durability and marginal adaptation?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11110%2F21%3A10430451" target="_blank" >RIV/00216208:11110/21:10430451 - isvavai.cz</a>

Alternative codes found

RIV/00064165:_____/21:10430451

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=yvvPZ0KR.S" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=yvvPZ0KR.S</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3290/j.jad.b2288233" target="_blank" >10.3290/j.jad.b2288233</a>

Result language

angličtina

Original language name

Can a new HEMA-free two-step self-etch adhesive improve dentin bonding durability and marginal adaptation?

Original language description

Purpose: A new two-step self-etch adhesive (2-SEA) free of hydrophilic monomers was evaluated. Its micro-tensile bond strength (TBS) to dentin under various aging conditions, interfacial gap formation, water sorption/solubility, and formation of an acid-base resistant zone (ABRZ) were evaluated and compared with a gold-standard 2-SEA. Materials and methods: The new 2-SEA G2-Bond Universal (G2; GC) was compared to Clearfil SE Bond 2 (CSE2, Kuraray). Their TBS to sound coronal dentin was tested after 1 week, 10,000 thermal cycles (TC), 20,000 TC, 6 months and 1 year. Failure mode was determined using scanning electron microscopy (SEM). Gap formation at the interface of 2-mm deep tapered cavities with the enamel border was observed using swept-source optical coherence tomography after 1 day, 1 week, 10,000 TC, and 20,000 TC. In addition, water sorption and solubility of the bonding agents was measured, and ABRZ formation was evaluated using SEM. Results: There was no significant difference in TBS between G2 and CSE2 (p&gt;0.05), and the aging conditions had no significant effect on TBS (p&gt;0.05). In all groups, cohesive failures prevailed (55-95%). Interfacial gap formation was initially similar for both adhesives (p&gt;0.05), but G2 exhibited a significantly lower gap formation than CSE2 after TC (p&lt;0.05). The water sorption of G2 was significantly lower compared to CSE2 (p&lt;0.05), and their solubility was statistically similar (p&gt;0.05). ABRZ of similar thickness was observed with both adhesives. Conclusion: The new 2-SEA exhibited stable dentin bonding and increased hydrophobicity resulting from the absence of hydrophilic monomers.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30208 - Dentistry, oral surgery and medicine

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Adhesive Dentistry

ISSN

1461-5185

e-ISSN

—

Volume of the periodical

23

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

505-512

UT code for WoS article

000764755900004

EID of the result in the Scopus database

2-s2.0-85122116301