Addition of metal chlorides to a HOCl conditioner can enhance bond strength to smear layer deproteinized dentin

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064165%3A_____%2F22%3A10444489" target="_blank" >RIV/00064165:_____/22:10444489 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11110/22:10444489

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Q6EyxDY2YE" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Q6EyxDY2YE</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dental.2022.06.006" target="_blank" >10.1016/j.dental.2022.06.006</a>

Result language

angličtina

Original language name

Addition of metal chlorides to a HOCl conditioner can enhance bond strength to smear layer deproteinized dentin

Original language description

Objectives: To evaluate the effect of smear layer deproteinization using hypochlorous acid (HOCl) with/without metal chlorides (SrCl2 and ZnCl2) on the microtensile bond strength (µTBS) of two simplified adhesives to dentin. Methods: Human dentin surfaces with a standardized smear layer were pretreated using a 105 ppm HOCl solution with/without SrCl2 (0.05 M, 0.1 M, 0.2 M, 0.4 M) or ZnCl2 (0.05 M, 0.1 M, 0.2 M) for 5 s, 15 s, or 30 s. After the deproteinizing solution was washed out with water for 5 s, 15 s, or 30 s, pretreated surfaces were bonded with one-step self-etch adhesive Bond Force II or universal adhesive Clearfil Universal Bond Quick, and µTBS was measured after 24 h. Additionally, the deproteinizing effects of HOCl solutions with/without the metal chlorides were compared by measuring changes in the amide:phosphate ratio using attenuated total reflection Fourier transform infrared spectroscopy. Statistical analysis was performed using multifactor ANOVA, Tukey&apos;s post hoc tests and t-tests (p &lt; 0.05). Results: Pretreatment with pure HOCl for 15 s and 30 s significantly decreased the amide:phosphate ratio (p &lt; 0.05), indicating effective deproteinization, but the µTBS of both adhesives increased significantly only if HOCl was washed out for 30 s (p &lt; 0.05). Increasing the concentrations of metal chlorides enabled shortening of the wash-out time down to 5 s while maintaining the improved µTBS (p &lt; 0.05). The deproteinizing effect of HOCl was not significantly altered by the addition of metal chlorides (p &gt; 0.05). Significance: The effectiveness of smear layer deproteinization using HOCl can be improved by the addition of metal chlorides, as their increasing concentration allowed to shorten the wash-out time from 30 s down to 5 s.

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

2022

Confidentiality

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

Name of the periodical

Dental Materials

ISSN

0109-5641

e-ISSN

1879-0097

Volume of the periodical

38

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

1235-1247

UT code for WoS article

000865417000001

EID of the result in the Scopus database

2-s2.0-85132540803