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Bond strength between dentine and a novel fast‐setting calcium silicate cement with fluoride
Author(s) -
Ranjkesh Bahram,
Kopperud Hilde M.,
Kopperud Simen E.,
Løvschall Henrik
Publication year - 2019
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/eos.12659
Subject(s) - bond strength , calcium hydroxide , molar , calcium silicate , cement , dentistry , materials science , root canal , glass ionomer cement , dental cement , stereo microscope , composite material , chemistry , adhesive , medicine , layer (electronics)
The aim of this study was to evaluate the dentine bond strength of a novel fast‐setting calcium silicate cement (Protooth) versus a calcium hydroxide‐based cement (Dycal), a calcium silicate cement (ProRoot MTA), and a glass ionomer cement (Ketac‐Molar). Mid‐root dentine slices of 1 mm thickness were obtained from human maxillary incisors. After enlarging the lumen of the canal to 1.3 mm, the cavities were randomly filled with test materials. Samples were immersed in physiological‐like solution. The push‐out bond strength was tested on days 1, 28, and 180 ( n = 12). Failure types of bonding were determined using a stereomicroscope. We analysed the data using linear regression. Dycal and day 1 were considered as reference for cement type and assessment time, respectively. Protooth, Ketac‐Molar, and ProRoot MTA demonstrated higher push‐out bond strength than Dycal. The push‐out bond strength in the Protooth group increased on day 28 and 180. The bond strength of Ketac‐Molar was significantly reduced on day 28. Dycal showed a significant decrease in bond strength on day 180 compared with that on day 1 and 28. Mixed failure was the dominant failure type. Protooth bonding to dentine was increased with time, in contrast to that of ProRoot MTA, Dycal, and Ketac‐Molar, as a function of time.