Teacher Liu Wenhui: Yirui M3 root canal preparation case

Mr. Cheng Geng: Yirui M3-Max has excellent root canal cleaning performance

Teacher Han Jianpeng: Yirui M3-L case column

Teacher Feng Ruiming: Physical method (machine nickel-titanium retreatment file + ultrasound) to remove the original filling material in the root canal

Ms. Liu Wenhui: Yirui M3 has excellent performance in root canal retherapy