TY - JOUR
T1 - Influence of different curing modes on flexural properties, fracture toughness, and wear behavior of dual-cure provisional resin-based composites
AU - Akiba, Shunsuke
AU - Takamizawa, Toshiki
AU - Tsujimoto, Akimasa
AU - Moritake, Nobuyuki
AU - Ishii, Ryo
AU - Barkmeier, Wayne W.
AU - Latta, Mark A.
AU - Miyazaki, Masashi
N1 - Funding Information:
This work was partially supported by a Grant-in-Aid for Scientific Research (C) (16K11565 and 17K11716) and a Grant-in-Aid for Young Scientists (B) (17K17141, and 17K17142) from the Japan Society for the Promotion of Science. This project was also partially supported by the Sato Fund and by a grant from the Dental Research Center of the Nihon University School of Dentistry, Japan.
Publisher Copyright:
© 2019, Japanese Society for Dental Materials and Devices. All rights reserved.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - We investigated the influence of different curing modes on the mechanical properties and wear behavior of dual-cure provisional resin-based composites (DCPRs). Three DCPRs and a self-curing bis-acryl provisional resin-based composite were used. Flexural strength (σF), elastic modulus (E), resilience (R), and fracture toughness (KIC) were measured. The specimens were fabricated with and without light irradiation, stored in distilled water at 37°C for 24 h, and subjected to 5,000 or 10,000 thermal cycles. For sliding impact wear testing, 12 specimens were prepared with and without light irradiation. The maximum facet depth and volume loss were determined using a noncontact profilometer. Some of the mechanical properties and wear behavior of DCPRs are affected by light irradiation. This study indicated that proper light irradiation is important in polymerization process of the DCPRs to enhance the wear resistance and some mechanical properties.
AB - We investigated the influence of different curing modes on the mechanical properties and wear behavior of dual-cure provisional resin-based composites (DCPRs). Three DCPRs and a self-curing bis-acryl provisional resin-based composite were used. Flexural strength (σF), elastic modulus (E), resilience (R), and fracture toughness (KIC) were measured. The specimens were fabricated with and without light irradiation, stored in distilled water at 37°C for 24 h, and subjected to 5,000 or 10,000 thermal cycles. For sliding impact wear testing, 12 specimens were prepared with and without light irradiation. The maximum facet depth and volume loss were determined using a noncontact profilometer. Some of the mechanical properties and wear behavior of DCPRs are affected by light irradiation. This study indicated that proper light irradiation is important in polymerization process of the DCPRs to enhance the wear resistance and some mechanical properties.
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U2 - 10.4012/dmj.2018-300
DO - 10.4012/dmj.2018-300
M3 - Article
C2 - 31231107
AN - SCOPUS:85072944721
VL - 38
SP - 728
EP - 737
JO - Dental Materials Journal
JF - Dental Materials Journal
SN - 0287-4547
IS - 5
ER -