Respuesta :

The hand-piece tip should be positioned at 80 degree angle to the buccal or oral surface and 90 degree angle to the occlusion surface of the posterior teeth.Tip should be held 3-4 mm from the surface.o

Air polishing involves the use of compressed air, water and glycerin power to disrupt oral biofilm and remove stain from tooth surfaces. Air polishing is essential t avoid trauma to oral soft tissues.

The surface of tooth  which is called  enamel is strong enough to withstand repeated tooth polishing , it avoid newly erupted teeth exposed root surface and area of decriminalized. If polishing does occur on these surface, fluid therapy can minimize the risk of dental case.

To learn more about enamel  here

https://brainly.com/question/22921986

#SPJ4

ACCESS MORE
EDU ACCESS