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Dental anesthesia is considered as an important aspect of oral and maxillofacial surgery.Complete anesthesia of the surgical field is impetrative before any major or minor procedures are performed.This helps to overcome the pain sensation as well as to reduce patient anxiety.Mostly,three forms of anesthesia are carried out-general anesthesia,conscious sedation with local anesthesia,and local anesthesia.In Thailand,general anesthesia can be carried out only by a qualified anesthesiologist,who are well versed with the use of fiber-optics,bronchoscope,guided endotracheal intubation,and video laryngoscope,and practicing under The Royal College of Anesthesiology.Conscious sedation is also frequently used and is indicated for patients who are stressed,anxious,and/or fearful of the operation or needles.