Open AccessEffect of acidic environment and intracanal medicament on push-out bond strength of biodentine and mineral trioxide aggregate plus: an in vitro study
Author(s) -
Priyanka Jain,
Zinnie Nanda,
Rahul Deore,
Amit Gandhi
Publication year - 2019
Publication title -
medicine and pharmacy reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.35
H-Index - 16
eISSN - 2668-0572
pISSN - 2602-0807
DOI - 10.15386/mpr-1057
Subject(s) - mineral trioxide aggregate , calcium hydroxide , bond strength , universal testing machine , dentistry , root canal , significant difference , apexification , nuclear chemistry , materials science , chemistry , medicine , adhesive , ultimate tensile strength , composite material , organic chemistry , layer (electronics)
. This in-vitro study aims to evaluate the effect of acidic environment and intracanal medicament on push out bond strength of Biodentine and Mineral Trioxide Aggregate Plus (MTA Plus)
Method. Forty extracted single rooted teeth were sectioned below the cement-enamel junction. The root canals were instrumented using rotary files and then peeso reamer was used to obtain standardized root canal dimension. Specimens were randomly classified into following groups- Group 1: calcium hydroxide in the absence of acidic environment; Group 2: calcium hydroxide in the presence of acidic environment; Group 3: no intracanal medicament in the absence of acidic environment; Group 4: no intracanal medicament in the presence of acidic environment. Specimens were kept for 7 days at room temperature. Thereafter, specimens of each group were transversely sectioned into 1 mm thick slices and divided into 2 sub-groups according to the use of biodentine and MTA Plus. Using Universal Testing Machine, push out bond strength test was carried out and the data were analyzed statistically.
Results. There was no statistically significant difference in the bond strength of biodentine and MTA Plus (P>0.05). For both MTA Plus and biodentine, with or without calcium hydroxide, the push out bond strength was less in acidic environment and this difference was more pronounced without calcium hydroxide. In all the four groups, MTA plus showed comparable bond strength to biodentine.
Conclusion. MTA Plus is a viable option for apexification. The push out bond strength of Biodentine and MTA Plus is impaired by acidic environment. Prior application of calcium hydroxide slightly increased the bond strength, though the difference was statistically insignificant.