The effect of a deproteinizing pretreatment on the bonding performance and acid resistance of a two-step self-etch adhesive on eroded dentin

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064165%3A_____%2F24%3A10466498" target="_blank" >RIV/00064165:_____/24:10466498 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11110/24:10466498

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=zC29QKt47R" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=zC29QKt47R</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2341/23-005-L" target="_blank" >10.2341/23-005-L</a>

Result language

angličtina

Original language name

The effect of a deproteinizing pretreatment on the bonding performance and acid resistance of a two-step self-etch adhesive on eroded dentin

Original language description

Objectives: This study evaluated how deproteinization using sodium hypochlorite (6% NaOCl) or hypochlorous acid (50 ppm HOCl) with or without the subsequent use of an arylsulfinate salt-containing agent (Clearfil DC Activator; DCA; Kuraray Noritake Dental) affects the micro-tensile bond strength (????TBS) and formation of acid-base resistant zone (ABRZs) of a two-step self-etch adhesive on eroded dentin.Methods: Coronal dentin surfaces of sound human molars were exposed to 48 cycles of demineralization (1% citric acid; 5 min) and remineralization (buffer solution with pH=6.4; 3.5 h). They were then assigned to experimental groups according to the pretreatment used: none (negative control), NaOCl, NaOCl+DCA, HOCl, and HOCl+DCA. Sound dentin surfaces with no pretreatment were used as a positive control. The dentin surfaces were bonded with Clearfil SE Bond 2 (Kuraray Noritake Dental), and ????TBS was measured either after 24 h or 20,000 thermal cycles (TC). The ????TBS data were statistically analyzed using Welch&apos;s t-tests with Bonferroni correction. Failure mode was determined with scanning electron microscopy (SEM), which was also used for the observation of ABRZ.Results: The highest ????TBS was measured on sound dentin (p&lt;0.001). Among experimental groups, there was no significant difference between the negative control, HOCl, and HOCl+DCA, but significantly higher ????TBS was measured with NaOCl and NaOCl+DCA (p&lt;0.001). TC decreased ????TBS significantly in all groups (p&lt;0.05) except for sound dentin and NaOCl+DCA. Adhesive failures prevailed in eroded groups, whereas cohesive failures were predominant on sound dentin. ABRZ was recognized in all groups, but marked morphological differences were observed.Conclusions: The combined use of 6% NaOCl and the arylsulfinate salt-containing agent partially reversed the compromised bonding performance on eroded dentin, as opposed to 50ppm HOCl.

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

—

OECD FORD branch

30208 - Dentistry, oral surgery and medicine

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2024

Confidentiality

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

Name of the periodical

Operative Dentistry

ISSN

0361-7734

e-ISSN

1559-2863

Volume of the periodical

49

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

65-75

UT code for WoS article

001183732000010

EID of the result in the Scopus database

2-s2.0-85181767622