ABSTRACT
Patients may be sedated in an upright sitting position in the dental chair, which means that an unexpected drop in blood pressure from whatever cause can lead to excessive difficulties. For this reason, the sedationist should be sure that the chair can be moved to a horizontal position in a crisis. In addition, the patient’s airway is shared between the surgeon and the sedationist, which may lead to diffi culty in managing respiration if the patient becomes deeply sedated, particularly if there is heavy soiling of the oral cavity by the dentist.
