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Published in: Clinical Oral Investigations 8/2020

01-08-2020 | Original Article

Quick bonding using a universal adhesive

Authors: Mohammed H. Ahmed, Kumiko Yoshihara, Benjamin Mercelis, Kirsten Van Landuyt, Marleen Peumans, Bart Van Meerbeek

Published in: Clinical Oral Investigations | Issue 8/2020

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Abstract

Objectives

This study aimed to measure the microtensile bond strength (μTBS) of a new universal adhesive (UA) bonded to dentin following a quick bonding mode.

Materials and methods

The experimental UA ‘SKB-100,’ now commercialized as Clearfil Universal Bond Quick (‘C-UBq’; Kuraray Noritake), was investigated, with Scotchbond Universal (‘SBU’; 3M Oral Care) and the two-step self-etch (SE) adhesive Clearfil SE Bond 2 (‘C-SE2’; Kuraray Noritake) serving as references. The adhesives were employed separately in etch&rinse (E&R) and SE modes on each tooth half following a split-tooth design and following their respective instructions for use, except for C-UBq that besides the manufacturer’s instructed quick bonding mode was also applied and left untouched for 20 s prior to light curing (‘C-UBq_20s’) and for C-SE2 that was also applied in the E&R mode. μTBS of half of the specimens was measured upon 1 week (1w), with the other half tested after 6-month (6m) storage in distilled water at 37 °C. Data were statistically analyzed using linear mixed-effects modeling and three-way ANOVA (p < 0.05). The adhesive–dentin interfaces were ultrastructurally characterized by TEM.

Results

C-UBq revealed a significantly lower μTBS than C-SE2. The highest μTBS was recorded for C-UBq_20s_1w and C-SE2_1w, both when applied in E&R mode. However, μTBS of C-UBq_20s significantly decreased upon aging in both modes. C-SE2 presented the significantly highest ‘aged’ μTBS.

Conclusion

C-UBq applied in the quick bonding mode did not underperform to the UAs applied for 20 s. Superior bonding effectiveness was achieved by C-SE2 in SE and E&R bonding modes.

Clinical relevance

Extended application time of C-UBq improved solely its immediate but not aged bonding effectiveness.
Literature
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Metadata
Title
Quick bonding using a universal adhesive
Authors
Mohammed H. Ahmed
Kumiko Yoshihara
Benjamin Mercelis
Kirsten Van Landuyt
Marleen Peumans
Bart Van Meerbeek
Publication date
01-08-2020
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 8/2020
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-019-03149-8

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