3.2. Specific Measures
Considering that each of the various dental disciplines has its operating peculiarities, it is appropriate to distinguish between particular precautions as follows.

3.2.1. Precautions in Operative Areas
The following procedures should be adopted:Protect the surfaces of all equipment and instruments with single-use disposable barriers, and dispose of the protections among the special waste after use.
Arrange only strictly necessary material on the surfaces of operating areas.
Clean the operative surfaces with hydroalcoholic disinfectants at concentrations above 60%.
Wear a uniform with long sleeves and shoes, and avoid exposed body parts.
Wear a disposable lab coat/overcoat.
It is also suggested that the patient mouth-rinse for 30 s with a 1% solution of hydrogen peroxide (1 part at 10-volume/3% hydrogen peroxide and 2 parts of water) or with 1% iodopovidone. This pre-operative treatment could lower the virus concentration in the patient’s mouth [3].
Give preference to extra-oral radiological examinations over intra-oral ones to avoid the stimulation of coughing or vomiting [15].

3.2.2. Precautions from Procedures that Produce Droplets or Aerosol
The following procedures should be adopted in addition to the ones described above:Replace and sterilize the high- and low-speed hand-pieces after each use between one patient and the next; the use of 3-way turbines and dental units equipped with valves and anti-reflux systems is recommended [8].
Use RPDs and protective glasses for eye protection or full visors for all medical and paramedical staff in contact with the patient. If not available, surgical masks with full visors can be used for all medical and paramedical staff in contact with the patient [3,16] (see section on PPEs below).
When possible, apply a rubber dam to reduce possible aerosol production [17,18].