Flexural and compressive properties of layered specimens formed with flowable and composite resins
10.14815/kjdm.2018.45.2.129
- Author:
Jang Hoon LEE
1
;
Seung Seo KIM
;
Hyo Joung SEOL
;
Yong Hoon KWON
Author Information
1. Department of Dental materials and BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan, Korea. y0k0916@pusan.ac.kr
- Publication Type:Original Article
- Keywords:
Resin repair;
Composite resin;
Flexural property;
Compressive property
- MeSH:
Composite Resins;
Compressive Strength;
Tooth
- From:
Korean Journal of Dental Materials
2018;45(2):129-138
- CountryRepublic of Korea
- Language:English
-
Abstract:
Flowable resins can be used as a base material during the restoration of deep tooth cavity. The purpose of the present study was to evaluate the mechanical properties of the layered specimens which have flowable resin as a base material. For the study, two composite resins and five flowable resins were chosen for the overlying and base materials, respectively. Flexural and compressive properties of each bulk and ten layered specimens were measured. Layered specimens showed high flexural strength (FS) and flexural modulus (FM) if bulk state FS and FM of the base flowable resin are high. However, compressive strength (CS) was not that case. CS of the layered specimen was not high (251.4~295.3 MPa) whether CS of the bulk state is high or not (259.8~439.8 MPa). FM showed high linear correlation with CM. After all mechanical properties of the layered specimens were not consistently influenced by the mechanical properties of the base flowable resins regardless of the overlying composite resins.
