title: Medial pterygoid trismus (myospasm) following inferior alveolar nerve block: case report and literature review.
abstract: A patient developed a medial pterygoid trismus (myospasm) the day after receiving three inferior alveolar nerve blocks and a routine restoration. She had a significantly restricted mouth opening and significant medial pterygoid muscle pain when she opened beyond the restriction; however, she had no swelling, lymphadenopathy, or fever. A medial pterygoid myospasm can occur secondary to an inferior alveolar nerve block. This disorder generally is treated by the application of heat, muscle stretches, analgesic and/or muscle relaxant ingestion, and a physical therapy referral. The severity of the disorder typically dictates the extent of therapy that is needed.
authors: Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, USA.
authors: Edward F
authors: EF
authors: Wright