Eight-year microtensile bond strength to dentin and interfacial nanomechanical properties of a one-step adhesive

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11110%2F21%3A10430449" target="_blank" >RIV/00216208:11110/21:10430449 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00064165:_____/21:10430449

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=~OLJQBcR-p" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=~OLJQBcR-p</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3290/j.jad.b1999815" target="_blank" >10.3290/j.jad.b1999815</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Eight-year microtensile bond strength to dentin and interfacial nanomechanical properties of a one-step adhesive

Popis výsledku v původním jazyce

Purpose: To evaluate the microtensile bond strength (μTBS) of a one-step self-etch adhesive (1-SEA) to dentin and its interfacial nanomechanical properties after 8 years of water storage. Materials and Methods: Flat coronal dentin surfaces of extracted human third molars were bonded with a 1-SEA (Clearfil S3 Bond Plus, CS3+) and built up with a hybrid resin composite (Clearfil AP-X). After storage in water for 24 h or 8 years, non-trimmed stick-shaped specimens were fabricated from the central part of each bonded tooth and subjected to the μTBS test at a crosshead speed of 1.0 mm/min. Failure modes and the morphology of debonded interfaces were analyzed using a scanning electron microscope (SEM). In addition, the elastic modulus (E) and hardness (H) of the adhesive layer and the resin composite were determined by an instrumented nanoin- dentation test. The acquired μTBS, E, and H data were statistically analyzed using t-tests to examine the effect of storage time (α = 0.05). Results: The 8-year μTBS was slightly lower than that after 24 h, but the difference was not significant (p = 0.123). The SEM observation of debonded surfaces after 8 years revealed extrusions and lacunas. E and H of the adhesive layer and the resin composite significantly decreased over the 8-year water storage (p &lt; 0.001). Conclusions: Although 8 years of water storage did not decrease the μTBS of CS3+ significantly, the observed fail- ure mode patterns and significantly decreased nanomechanical properties indicated resin degradation of the adhe- sive and the resin composite.

Název v anglickém jazyce

Eight-year microtensile bond strength to dentin and interfacial nanomechanical properties of a one-step adhesive

Popis výsledku anglicky

Purpose: To evaluate the microtensile bond strength (μTBS) of a one-step self-etch adhesive (1-SEA) to dentin and its interfacial nanomechanical properties after 8 years of water storage. Materials and Methods: Flat coronal dentin surfaces of extracted human third molars were bonded with a 1-SEA (Clearfil S3 Bond Plus, CS3+) and built up with a hybrid resin composite (Clearfil AP-X). After storage in water for 24 h or 8 years, non-trimmed stick-shaped specimens were fabricated from the central part of each bonded tooth and subjected to the μTBS test at a crosshead speed of 1.0 mm/min. Failure modes and the morphology of debonded interfaces were analyzed using a scanning electron microscope (SEM). In addition, the elastic modulus (E) and hardness (H) of the adhesive layer and the resin composite were determined by an instrumented nanoin- dentation test. The acquired μTBS, E, and H data were statistically analyzed using t-tests to examine the effect of storage time (α = 0.05). Results: The 8-year μTBS was slightly lower than that after 24 h, but the difference was not significant (p = 0.123). The SEM observation of debonded surfaces after 8 years revealed extrusions and lacunas. E and H of the adhesive layer and the resin composite significantly decreased over the 8-year water storage (p &lt; 0.001). Conclusions: Although 8 years of water storage did not decrease the μTBS of CS3+ significantly, the observed fail- ure mode patterns and significantly decreased nanomechanical properties indicated resin degradation of the adhe- sive and the resin composite.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30208 - Dentistry, oral surgery and medicine

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Adhesive Dentistry

ISSN

1461-5185

e-ISSN

—

Svazek periodika

23

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

461-467

Kód UT WoS článku

000722225500010

EID výsledku v databázi Scopus

2-s2.0-85116750087