Table 1 Materials used in this study
Grouping | Treatment |
|---|---|
Original dental coping sheet | Prior to thermoforming, the standard specimens were conditioned at room temperature (23 °C) for 24 h |
Thermoformed aligners under standard atmospheric conditions | After thermoforming, the specimens for clinical use were conditioned at room temperature (23 °C) for 24 h |
Thermoformed aligners in a simulated intraoral environment | After thermoforming, the specimens for clinical use were immersed in normal saline at 37 °C for 24 h |