Active Unilateral Condylar Hyperplasia Treated With Simultaneous Condylectomy and Orthognathic Surgery: A Clinical Report.

Purpose: To review and report the demographic and diagnostic data in a population with active unilateral condylar hyperplasia. The surgical intervention, sequencing of surgery, and treatment outcomes, including a quality-of-life survey, are described.

Materials And Methods: Eighty patients were diagnosed with active disease.

Massive Exophytic Brown's Tumor of the Bilateral Maxilla with Mandibular Involvement.

Brown's tumor is a benign bone lesion that occurs in the setting of hyperparathyroidism and can affect the facial skeleton. It often presents as a single lesion and is usually less than 3 centimeters. To our knowledge, no cases have been reported to have bilateral involvement of the maxilla and mandible with the largest dimension measuring over 7 centimeters.

Epidemiologic Patterns of Maxillofacial Trauma in a Metropolitan Area: A Retrospective Analysis.

Purpose: To illuminate epidemiologic trends of maxillofacial trauma in an urban setting over an 11-year period.

Materials And Methods: We performed an exhaustive database search at the University of Pennsylvania. The data were collected from 11 years of attending oral and maxillofacial surgery clinician and resident operating room logs and was conducted from 2011 to 2021.

Mechanical and thermal hypersensitivities associated with orthodontic tooth movement: a behavioral rat model for orthodontic tooth movement-induced pain.

Aim: To test whether orofacial mechanical and thermal hypersensitivities occur in rats during orthodontic tooth movement (OTM).

Methods: Sprague-Dawley rats (140 to 160 g) were divided into an experimental (E) group (n =7), with an active orthodontic spring placed in the right side of their mouth, and a sham (S) group (n = 7), with an inactive orthodontic spring. Mechanical sensitivity was tested preoperatively (1 day before attaching the orthodontic spring) and postoperatively (1 hour, 3 hours, 6 hours, days 1 to 7, day 14, day 21, and day 28 after orthodontic spring attachment) on the cheek, upper lip, and maxillary incisor labial gingiva bilaterally by recording the threshold for a head withdrawal response evoked by von Frey filaments.

Neuroplastic changes in the sensorimotor cortex associated with orthodontic tooth movement in rats.

Orthodontic tooth movement (OTM) causes transient pain and changes in the dental occlusion that may lead to altered somatosensory inputs and patterns of mastication. This study used intracortical microstimulation (ICMS) and electromyographic (EMG) recordings to test whether neuroplastic changes occur in the ICMS-defined motor representations of left and right anterior digastric (LAD, RAD), masseter, buccinator, and genioglossus (GG) muscles within the rat's face primary motor cortex (face-M1) and adjacent face primary somatosensory cortex (face-S1) during OTM. Analyses included any changes in the number of ICMS sites representing these muscles and in the onset latencies of ICMS-evoked responses in the muscles.