Li Wenliang, an ophthalmologist at Wuhan Central Hospital, was unfortunately infected in the fight against the pneumonia epidemic of the new coronavirus infection, and was not rescued by all efforts. He died at 2:58 on February 7, 2020. The world's mainstream media, including the World Health Organi

How Does a Low Speed Handpiece Work?An airline is attached to the back end of the handpiece, similar to a high speed handpiece.When air is introduced into the handpiece (via the chair unit foot pedal), air is forced over the vanes of the rotor (consisting of Vanes or blades), which causes it to spin

Disadvantages of Push Button ChucksDo not provide as strong a grip on the bur as screw-type chucks.Heavy use can cause the chuck to strip, which will result in poor bur retention.Higher cost to purchase.Once the chuck fails the whole turbine must be replaced instead of just the chuck.

What are the Different Types of Chucking Mechanisms?1. Standard Screw-Type (bur tool-type)The spindle and chuck (the parts of the turbine that hold the bur) are separate.A bur tool is required to insert and remove the bur; it screws the chuck down into the spindle causing the chuck to tighten around