AI Article Synopsis
- - The study aimed to evaluate how different treatments, like heat and ultrasound, affect the setting speed and strength of a conventional glass-ionomer cement (GIC) called EQUIA.
- - Researchers established that optimal treatment times for heat and ultrasound were 5 minutes and 35 seconds, respectively, with the combination of both treatments showing the most significant improvement in setting speed.
- - Results indicated that the dual treatment enhanced mechanical properties after 24 hours, but no significant differences appeared after 1 and 3 months when compared to standard conditions.
Article Abstract
Purpose: To compare the effect of different treatments (heat capsule, ultrasound, and dual treatments) on the setting kinetics and maturation properties of a conventional GIC (EQUIA, GC) to that of standard setting.
Methods: The optimal durations of the heat and ultrasonic treatments were determined by monitoring changes in the COO-/COOH ratio, surface hardness, and temperature within the samples. The influence of optimal treatments on the maturation properties of the GIC (microhardness, and 3-point flexural strength) were assessed using GIC samples incubated in artificial saliva for 24 hours, 1 month, and 3 months.
Results: The optimal durations of the heat and ultrasonic treatments for accelerating setting were 5 minutes and 35 seconds, respectively. The dual treatment using the optimal conditions of the individual treatments further enhanced the setting kinetics. A temperature peak (49°C) within the GIC was detected during setting. Only the dual treatment increased the mechanical properties of the GIC after 24 hours compared to the control, while no significant difference was observed after 1 and 3 months.
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