Splash-proof face shields are required for routine periodontal treatment. Surgical masks are an alternative and must be worn during any power scaling or drilling to prevent inhalation of the aerosol of infected water droplets. Be aware that they have a limited period of effectiveness.

Protective spectacles must always be worn, if a dental drill or scaler is used, to prevent calculus or other debris hitting the eyes and to reduce aerosol contact with the conjunctiva.