PMID- 33918316
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210502
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 14
IP  - 7
DP  - 2021 Apr 2
TI  - Effects of Copper Surface Oxidation and Reduction on Shear-Bond Strength Using 
      Functional Monomers.
LID - 10.3390/ma14071753 [doi]
LID - 1753
AB  - This study was conducted to clarify the influence of the copper surface oxidation 
      and reduction on the shear-bond strength with functional monomers. Unheated 
      copper specimens (UH; n = 88) were wet-ground. Three-quarters of the UH were then 
      heated (HT). Two-thirds of the HT was then immersed in a hydrochloric acid 
      solution (AC). Half of the AC was then reheated (RH). Each group was further 
      divided into two groups (n = 11), which were primed by either 
      6-methacryloyloxyhexyl 2-thiouracil-5-carboxylate (MTU-6) or 
      10-methacryloyloxydecyl dihydrogen phosphate (MDP). The shear-bond strength tests 
      were used for bonding with an acrylic resin. The surface roughness values and 
      chemical states of the four groups were analyzed using a confocal scanning laser 
      microscope and X-ray photoelectron spectroscopy (XPS). The shear-bond strengths 
      of HT and RH were the lowest in the MTU-6-primed groups. The result of AC was 
      significantly lower than others in the MDP-primed groups. The XPS results showed 
      that the surfaces of UH and AC consisted of Cu(2)O and Cu. The surface changed to 
      CuO upon heating. The presence or absence of copper-oxide films showed the 
      opposite trends in the effectiveness of MTU-6 and MDP to improve bond strength. 
      The results could elucidate the effects of functional monomers on copper-oxide 
      films.
FAU - Hiraba, Haruto
AU  - Hiraba H
AUID- ORCID: 0000-0002-1328-6648
AD  - Department of Fixed Prosthodontics, Nihon University School of Dentistry, 1-8-13, 
      Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
AD  - Division of Advanced Dental Treatment, Dental Research Center, Nihon University 
      School of Dentistry, 1-8-13, Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
FAU - Koizumi, Hiroyasu
AU  - Koizumi H
AUID- ORCID: 0000-0002-6160-2692
AD  - Department of Dental Materials, Nihon University School of Dentistry, 1-8-13, 
      Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
AD  - Division of Biomaterials Science, Dental Research Center, Nihon University School 
      of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
AD  - Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The 
      University of Hong Kong, Hong Kong SAR 999077, China.
FAU - Kodaira, Akihisa
AU  - Kodaira A
AD  - Department of Fixed Prosthodontics, Nihon University School of Dentistry, 1-8-13, 
      Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
AD  - Division of Advanced Dental Treatment, Dental Research Center, Nihon University 
      School of Dentistry, 1-8-13, Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
FAU - Takehana, Kosuke
AU  - Takehana K
AD  - Department of Fixed Prosthodontics, Nihon University School of Dentistry, 1-8-13, 
      Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
FAU - Yoneyama, Takayuki
AU  - Yoneyama T
AD  - Department of Dental Materials, Nihon University School of Dentistry, 1-8-13, 
      Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
AD  - Division of Biomaterials Science, Dental Research Center, Nihon University School 
      of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
FAU - Matsumura, Hideo
AU  - Matsumura H
AD  - Department of Fixed Prosthodontics, Nihon University School of Dentistry, 1-8-13, 
      Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
AD  - Division of Advanced Dental Treatment, Dental Research Center, Nihon University 
      School of Dentistry, 1-8-13, Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
LA  - eng
GR  - 19K19142/Japan Society for the Promotion of Science/
GR  - Sato Fund/School of Dentistry, Nihon University/
PT  - Journal Article
DEP - 20210402
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC8038149
OTO - NOTNLM
OT  - acrylic resin
OT  - adhesive
OT  - dental metal
OT  - functional monomer
OT  - oxide film
COIS- The authors declare no conflict of interest with any product or company that is 
      presented in this article. The funders had no role in the design of the study; in 
      the collection, analyses, or interpretation of data; in the writing of the 
      manuscript, or in the decision to publish the results.
EDAT- 2021/05/01 06:00
MHDA- 2021/05/01 06:01
PMCR- 2021/04/02
CRDT- 2021/04/30 01:09
PHST- 2021/02/19 00:00 [received]
PHST- 2021/03/29 00:00 [revised]
PHST- 2021/03/30 00:00 [accepted]
PHST- 2021/04/30 01:09 [entrez]
PHST- 2021/05/01 06:00 [pubmed]
PHST- 2021/05/01 06:01 [medline]
PHST- 2021/04/02 00:00 [pmc-release]
AID - ma14071753 [pii]
AID - materials-14-01753 [pii]
AID - 10.3390/ma14071753 [doi]
PST - epublish
SO  - Materials (Basel). 2021 Apr 2;14(7):1753. doi: 10.3390/ma14071753.