Orthodontic Salon----Play Face Mask with me

Shenzhen Mingren Dental Clinic will hold an ortho Salon with RS MEDICO on Nov 17 in their clinics.

Mr. Liu, a famous doctor, will share his orthodontic treatments with us:

1) Which case can use face masks?

2) Any age limitation when use face masks?

3)How to use face maks and ortho screws togehter?

4) How to choose the force when use face masks?