TY - JOUR
T1 - Effects of calcium-containing desensitizers on the bonding stability of an etch-and-rinse adhesive against long-term water storage and pH cycling
AU - Yang, Hongye
AU - Chen, Zhiyong
AU - Yan, Huiyi
AU - Huang, Cui
N1 - Funding Information:
The authors declare that they have no conflict of interest. This work was financially supported by National Nature Science Foundation of China (No. 81371191).
Publisher Copyright:
© 2018, Japanese Society for Dental Materials and Devices. All rights reserved.
PY - 2018
Y1 - 2018
N2 - This study aimed to evaluate the effects of two calcium-containing desensitizing pastes on the bonding stability of an etch-and-rinse (E&R) adhesive to dentine. After dentine hypersensitivity model established, dentine surfaces were assigned one of the following pretreatment: Group 1, no desensitizer; Group 2, CPP-ACP; and Group 3, Novamin. Specimens were then bonded with an E&R adhesive. Beams from each tooth were randomly divided into three subgroups and then subjected to microtensile bond strength (MTBS) test after 24 h; 12 months of water storage; or 15 runs of pH cycling. Failure modes, nanoleakage, and tubule-occluding effectiveness were analyzed. Results showed that CPP-ACP- or Novamin-pretreated specimens mainly preserved the bonding strength after 12 months of water storage, while effective tubule occlusion could be observed. The results suggested that the calcium-containing desensitizers were compatible pretreatment for bonding with E&R adhesives to obtain reliable long-term bonding strength and prevention of post-operative sensitivity.
AB - This study aimed to evaluate the effects of two calcium-containing desensitizing pastes on the bonding stability of an etch-and-rinse (E&R) adhesive to dentine. After dentine hypersensitivity model established, dentine surfaces were assigned one of the following pretreatment: Group 1, no desensitizer; Group 2, CPP-ACP; and Group 3, Novamin. Specimens were then bonded with an E&R adhesive. Beams from each tooth were randomly divided into three subgroups and then subjected to microtensile bond strength (MTBS) test after 24 h; 12 months of water storage; or 15 runs of pH cycling. Failure modes, nanoleakage, and tubule-occluding effectiveness were analyzed. Results showed that CPP-ACP- or Novamin-pretreated specimens mainly preserved the bonding strength after 12 months of water storage, while effective tubule occlusion could be observed. The results suggested that the calcium-containing desensitizers were compatible pretreatment for bonding with E&R adhesives to obtain reliable long-term bonding strength and prevention of post-operative sensitivity.
KW - Dentine bonding
KW - Dentine hypersensitivity
KW - Desensitizing
KW - Etch-and-rinse adhesive
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U2 - 10.4012/dmj.2017-006
DO - 10.4012/dmj.2017-006
M3 - Article
C2 - 29176299
AN - SCOPUS:85041353191
SN - 0287-4547
VL - 37
SP - 122
EP - 129
JO - Dental Materials Journal
JF - Dental Materials Journal
IS - 1
ER -