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Transient Delayed Facial Nerve Palsy After Inferior Alveolar Nerve Block Anesthesia
Facial Paralysis from Dental Anesthesia | Gacovino, Lake & Associates
A visit to the dentist can trigger emotions ranging from nervousness to fear. This type of paralysis occurs in the face, typically on one side. The symptoms of facial nerve palsy can occur immediately or may be delayed. The needle may go directly into a gland or can be administered too far.
The Paralyzing Effect of Oral Anesthesia
Peripheral facial nerve palsy FNP is a common neuropathy of cranial nerves. However, it is a rare condition in dental treatment and may be associated with local anesthetic injections. Initial trauma to facial nerve cab is usually minor. In this instance, a complete and rapid recovery is expected and most cases resolve within 12 hours. If more extensive damage occurs, nerve palsy can be significant and long lasting.
Facial nerve palsy, as a complication of an inferior alveolar nerve block anesthesia, is a rarely reported incident. Based on the time elapsed, from the moment of the injection to the onset of the symptoms, the paralysis could be either immediate or delayed. The pathogenesis, treatment, and results of an 8-week follow-up for a year-old patient referred to a private maxillofacial clinic are presented and discussed. The patient's previous medical history was unremarkable. On clinical examination the patient exhibited generalized weakness of the left side of her face with a flat and expressionless appearance, and she was unable to close her left eye.