Related Experiment Video
Updated: Aug 30, 2026
Assessment of Nerve Injury-Induced Mechanical Hypersensitivity in Rats Using an Orofacial Operant Pain Assay
Published on: July 26, 2022
Paresthesia associated with endodontic treatment of mandibular premolars
Kenneth I Knowles1, Margaret A Jergenson, James H Howard
1Department of Endodontics, Creighton University School of Dentistry, Omaha, NE 68178, USA. kikendo@creighton.edu
Abstract:
The objective of this retrospective study was to determine how often paresthesia occurs and to examine the role of the anatomy of the inferior alveolar nerve (IAN). The study took the form of a review of the records of the endodontic department at the Creighton University School of Dentistry, a literature review, and cadaver dissections. The result showed that of 6313 teeth treated during a 7-yr period, 832 were mandibular premolar teeth. The eight reported cases of paresthesia in that group reflected an incidence of 0.96%. Observations of dissected human-cadaver mandibles indicated that the paresthesias of the mandible could be related to the confinement of the IAN within the limits of the mandible. It was concluded that these paresthesias were related to the intrabony course of the IAN through the mandible, which contributed to the paresthesia symptoms.
Related Concept Videos
01:21Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
01:29Blood and Nerve Supply to the Bones
Nutrient Artery
The nutrient artery is the main blood vessel that enters the diaphysis via the nutrient foramen. While most long bones have only one nutrient foramen, large bones, such as the femur, may have two. This...