Temporomandibular joint ganglion-induced external auditory canal obstruction associated with osteoarthritis: a case report.

Ganglions are pseudocysts that develop from part of the joint capsule or tendon sheath and are filled with synovial fluid. In this report, we describe a case of external auditory canal obstruction caused by a temporomandibular joint (TMJ) ganglion that was thought to be related to osteoarthritis. A 62-year-old man with the chief complaint of swelling of the anterior wall of the left external auditory canal underwent cystectomy at the Department of Otorhinolaryngology.

Metastasis to the finger of oral floor squamous cell carcinoma: A case report.

When cetuximab is used, diagnosing finger metastasis can be difficult due to the side effects of paronychia and color changes of nails. Finger metastasis may be a marker of multiple metastasis; therefore, it can lead to a poor prognosis.

Electrophysiologic evaluation of inferior alveolar nerve regenerated by bifocal distraction osteogenesis in dogs.

Background: Bifocal distraction osteogenesis has been shown to be a reliable method for reconstructing missing bone segments. However, there are no reports regarding inferior alveolar nerve regeneration during bifocal distraction. In the present study, the authors evaluated the function of inferior alveolar nerve regenerated by bifocal distraction after segmental resection in the mandibles of dogs.

Inferior alveolar nerve regeneration after bifocal distraction osteogenesis in dogs.

Purpose: Bifocal distraction osteogenesis has been shown to be a reliable method for reconstructing missing bone segments. However, no reports have been published regarding inferior alveolar nerve regeneration during this procedure. We assumed that the nerve could regenerate with the bone regeneration during bifocal distraction, if the nerve had been saved at a mesial site of the transport disc.

Saliva secretion stimulated by grafted nerve in submandibular gland allograft in dogs.

Background: Recent studies have described submandibular gland allografts in animal models; however, the amount of saliva secretion or nervous regeneration in those animals have not been reported. Herein, we investigated saliva secretion from submandibular gland allografts in beagle dogs.

Methods: Using a vascularized submandibular gland transplantation method, we extracted portions of the submandibular gland including the duct from beagle dogs and placed them into the submental region of age- and weight-matched dogs.

Transplantation of vascularized submandibular gland in dogs.

Purpose: Presently, treatments for xerostomia only target symptoms, as an active therapy method has not been established. Herein, we discuss the possibility of using a submandibular gland allograft technique for the disease.

Materials And Methods: Using a vascularized submandibular gland transplantation method, we extracted portions of the submandibular gland, including the duct and chorda tympani branches, from beagle dogs and placed them into the submental region of age- and weight-matched dogs.

Influence of aging on tooth eruption: experimental canine mandibular allograft.

Purpose: Aging is clinically related to tooth eruption; however, there are no known studies that have elucidated the relationship. We examined whether tooth eruption would occur normally in a mature subject.

Materials And Methods: Using vascularized composite tissue mandibular transplantation, we extracted portions of immature mandibles including the tooth germs from young beagle dogs and placed them into unrelated immature and mature beagle dogs.

Effects of subglottal air pressure on velopharyngeal muscle activity in dogs.

Objective: To analyze the effects of airflow in the larynx on activity of the levator veli palatini and pterygopharyngeal muscles.

Design: Ten adult beagle dogs were anesthetized with sodium pentobarbital. In each dog, two tracheal tubes were inserted subsequent to tracheotomy, one in the direction of the vocal folds and the other toward the lungs for respiration.