TITLE:
Shear Bond Strength of Different Types of Cement Used for Bonding Band and Loop Space Maintainer
AUTHORS:
Gio Lee, Justin Vo, Neamat Hassan Abubakr
KEYWORDS:
Shear Bond, Band and Loop Space Maintainers, Ketac Cem Cement, RelyX Plus Cement, RelyX Unicem 2 Cement
JOURNAL NAME:
Open Journal of Stomatology,
Vol.13 No.11,
November
23,
2023
ABSTRACT: Purpose: The present study aimed to evaluate the effects of thermal aging on the shear bond strength of three different types of cement used to retain band and loop space maintainers cemented on extracted human permanent molar teeth. Methods: A total of 66 newly extracted permanent molars were used in this study. Eighteen teeth were used as a control and did not undergo thermal aging (six per group). All sample teeth were randomly divided into three groups: KetacCem, RelyX Luting Plus, and RelyX Unicem 2. After bonding procedures, all experimental groups undergo thermal aging. The shear bond strength of all samples was conducted using the Ultratester machine. Findings were statistically analyzed using the ANOVA and Turkey’s post hoc tests. Results: Among the examined groups, Ketac Cem presented with the highest recorded shear bond (11.4 MPa), while RelyX Luting Plus showed the lowest (3.2 MPa). The control groups recorded the highest shear bond strength compared to all examined groups; Ketac Cem showed the highest shear bond strength (12.8 Mpa), and RelyX Luting Plus had the least recorded reading (5.4 Mpa). Conclusion: Within the limitation of the present study, there was a statistically significant difference between the examined groups; Ketac Cem showed a higher shear bond cement than RelyX luting Plus and RelyX Unicem.