Principle of surgery
American Society of Anesthesiologists (ASA) Classlfication of Physical Status
The results of the medical evaluation are used to assign a physical status classification. A few classification systems exist, but the one most commonly used is the American Society of Anesthesiologists’ (ASA) physical status classification system (Box 1-8),
Once an ASA physical status class has been determined the dentist can decide if needed treatment can be safely and routinely performed in the dental office, If a patient is not ASA class I or a relatively healthy class II patient, the practitioner generally has the following four options: (1)
modifying routine treatment plans by anxiety reduction measures, pharmacologic anxiety control techniques, more careful monitoring of the patient during treatment, or a combination of these methods (this is usually all that is necessary for ASA class II); (2) obtaining medical on sultation
for guidance in preparing patients to undergo ambulatory oral surgery (such as by preoperative administration of oxygen and nitroglycerin for patients with angina);(3) refusing to treat the patient in the ambulatory setting;or (4) referring the patient to an oral and maxillofacial surgeon. Modifications to the ASA system designed to be more specific to dentistry arc available but are not yet widely used among health care professionals.