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Lingual nerve

Ashutosh Rai, Sushil Sharma, Prabhat Shrivastava, Mangal Singh
The most common tumour of salivary gland is pleomorphic adenoma (PA). They are benign, painless, can grow into big tumours but usually do not affect nerves or lymph nodes. PA most commonly occurs in the parotid gland but it may involve submandibular, lingual and minor salivary glands also. They can attain giant proportions and weigh several kilograms. We report a giant PA arising in the submandibular gland and treated by complete surgical excision without any complication. A female patient presented with a tumour in the submandibular region and front of neck with a history of more than 18 years...
March 16, 2018: BMJ Case Reports
Y Klazen, F Van der Cruyssen, M Vranckx, M Van Vlierberghe, C Politis, T Renton, R Jacobs
With the growing demand for dental work, trigeminal nerve injuries are increasingly common. This retrospective cohort study examined 53 cases of iatrogenic trigeminal nerve injury seen at the Department of Oral and Maxillofacial Surgery, University Hospitals of Leuven between 2013 and 2014 (0.6% among 8845 new patient visits). Patient records were screened for post-traumatic trigeminal nerve neuropathy caused by nerve injury incurred during implant surgery, endodontic treatment, local anaesthesia, tooth extraction, or specifically third molar removal...
March 6, 2018: International Journal of Oral and Maxillofacial Surgery
Nozomi Shiwa, Kazunori Kimitsuki, Daria Llenaresas Manalo, Satoshi Inoue, Chun-Ho Park
During rabies virus infections, the minor salivary glands are one of the important organs for virus replication and excretion into the oral cavity. However, details of pathological findings and viral antigen distribution in the minor salivary glands remain poorly understood. In this study, we conducted pathological tests on the tongues of 71 rabid dogs in the Philippines; the minor salivary glands (von Ebner's glands, lingual glands), circumvallate papilla, autonomic ganglia, and skeletal muscles were evaluated...
March 2, 2018: Archives of Virology
Ceren Günenç Beşer, Burcu Erçakmak, Hasan Barış Ilgaz, Alper Vatansever, Mustafa Fevzi Sargon
BACKGROUND: The aim of the study was to evaluate the relations between submandibular duct, lingual nerve and hypoglossal nerve for making a reassessment of this area in fresh frozen specimens. Also, the distance between the angle of the mandible and the vertical line drawn from the point where submandibular duct crossed lingual nerve to the base of the mandible was measured to determine a new landmark for neck surgeons. METHODS: 14 fresh frozen head and neck specimens were dissected and evaluated...
February 5, 2018: Folia Morphologica (Warsz)
Minami Goto, Kayoko Yonemaru, Akihiro Hirata, Hidenari Furuhashi, Tokuma Yanai, Hiroki Sakai
A mass was found at the base of the dorsum linguae of a male 11-year-old Labrador retriever. The tumor comprised of ganglion cells and Schwannian cells with Verocay bodies. The ganglion cells were positive for neuron-specific enolase, S-100, nerve growth factor receptor, and beta III tubulin. The Schwannian cells were positive for neuron-specific enolase, S-100, nerve growth factor receptor, and glial fibrillary acidic protein. The lingual mass was diagnosed as a ganglioneuroma. To our knowledge, there has been no previous report of a lingual ganglioneuroma in a dog...
January 25, 2018: Journal of Veterinary Medical Science
Yi-Kai Su, Jen-Hung Wang, Shiu-Ying Hsieh, Xiu-Zhu Liu, Chen-Fuh Lam, Shian-Che Huang
BACKGROUND: Lingual nerve injury or neuropraxia is a rare but potentially serious perioperative complication following airway instrumentation during general anesthesia. This study explored the the incidence and perioperative risk factors for lingual nerve injury in patients receiving laryngeal mask (LMA) or endotracheal (ETGA) general anesthesia in a single center experience. METHODS AND RESULTS: All surgical patients in our hospital who received LMA or ETGA from 2009 to 2013 were included, and potential perioperative risk factors were compared...
2018: PloS One
Islam A Elzahaby, Ashraf Khater, Ahmed Abdallah, Basel Refky, Mahmoud Abd Elaziz, Mosab Shetiwy, Amir M Zaid
INTRODUCTION: This study aims to demonstrate the safety, surgical feasibility, and esthetic features of total endoscopic submandibular sialadenectomy through a chest wall approach without the creation of any neck incisions. METHODS: Four patients with benign submandibular gland lesions underwent a total endoscopic submandibular sialadenectomy through a chest wall approach using 3 ports (one 10-mm port for the camera and two 5-mm ports for the working instruments)...
January 1, 2018: Surgical Innovation
Gerardo La Monaca, Iole Vozza, Rita Giardino, Susanna Annibali, Nicola Pranno, Maria Paola Cristalli
Surgery to the mandibular third molar is common, and injuries to the inferior alveolar nerve and the lingual nerve are well-recognized complications of this procedure. The aim of these technical notes is to describe operative measures for reducing neurological complications during mandibular third molar surgery. The following procedure should be used to prevent damage to the inferior alveolar nerve: a well-designed mucoperiosteal flap, to obtain appropriate access to the surgical area; a conservative ostectomy on the distal and distal-lingual side; tooth sectioning, to facilitate its removal by decreasing the retention zones; tooth dislocation in the path of withdrawal imposed by the curvature of the root apex; and careful socket debridement, when the roots of the extracted tooth are in intimate contact with the mandibular canal...
April 2017: Annali di Stomatologia
Alberto Prats-Galino, Martin Čapek, Miguel A Reina, Erika Cvetko, Barbora Radochova, R Shane Tubbs, Marija Damjanovska, Tatjana Stopar Pintarič
The general microscopic characteristics of nerves are described in several textbooks of histology, but the specific microanatomies of most nerves that can be blocked by anesthesiologists are usually less well known. Our objective was to evaluate the 3D reconstruction of nerve fascicles from optical projection tomography images (OPT) and the ability to undertake an internal navigation exploring the morphology in detail, more specifically the fascicular interconnections. Median and lingual nerve samples were obtained from five euthanized piglets...
December 2, 2017: Clinical Anatomy
James Barraclough, Andrew Power, Amit Pattni
NICE guidance for mandibular third molars has been available since 2000. This was set up to limit the surgical treatment of these teeth to symptomatic patients. There are numerous risks involved with surgical treatment of mandibular third molars and these should be explained in detail to the patient. Common and serious complications of mandibular third molar surgery are damage to the inferior alveolar and lingual nerve. Predicting the risk of inferior alveolar nerve injury is useful for treatment planning. The orthopantomogram (OPT) is the baseline special test for assessing this and numerous signs on an OPT can predict an increased risk of injury to the nerve...
March 2017: Dental Update
R Dessouky, Y Xi, J Zuniga, A Chhabra
BACKGROUND AND PURPOSE: Clinical neurosensory testing is an imperfect reference standard to evaluate molar tooth extraction related peripheral trigeminal neuropathy. The purpose was to evaluate the diagnostic accuracy of MR neurography in this domain and correlation with neurosensory testing and surgery. MATERIALS AND METHODS: In this retrospective study, nerve caliber, T2 signal intensity ratio, and contrast-to-noise ratios were recorded by 2 observers using MR neurography for bilateral branches of the peripheral trigeminal nerve, the inferior alveolar and lingual nerves...
November 16, 2017: AJNR. American Journal of Neuroradiology
Archana Kumari, Alexandre N Ermilov, Marina Grachtchouk, Andrzej A Dlugosz, Benjamin L Allen, Robert M Bradley, Charlotte M Mistretta
Striking taste disturbances are reported in cancer patients treated with Hedgehog (HH)-pathway inhibitor drugs, including sonidegib (LDE225), which block the HH pathway effector Smoothened (SMO). We tested the potential for molecular, cellular, and functional recovery in mice from the severe disruption of taste-organ biology and taste sensation that follows HH/SMO signaling inhibition. Sonidegib treatment led to rapid loss of taste buds (TB) in both fungiform and circumvallate papillae, including disruption of TB progenitor-cell proliferation and differentiation...
November 28, 2017: Proceedings of the National Academy of Sciences of the United States of America
Zhou-Xi Ye, Chi Yang
Extracting horizontal mandibular 3rd molars face considerable difficulty due to the large bone and adjacent tooth resistances. This study aims at evaluating the effectiveness of a novel method-mesiolingual root rotation to extract wisdom teeth of this type. In this study, 73 horizontal teeth extracted using piezosurgery were reviewed and classified based on impaction depth: position I, II, III refers to the highest portion of the crown on a level with upper 1/3, middle 1/3, lower 1/3 of the 2rd molar's root...
October 31, 2017: Scientific Reports
Liqun Gu, Chao Zhu, Kejia Chen, Xianchu Liu, Zhangui Tang
PURPOSE: The positional relationship between the mandibular canal and corresponding third molars is a key anatomic factor of inferior alveolar nerve (IAN) injury. The aim of the present study is to classify the anatomic three-dimensional relationship between the mandibular third molar and the mandibular canal on cone-beam computed tomography (CBCT) images. METHODS: This study used CBCT images to classify the positional relationship between the mandibular canal and corresponding third molars...
October 27, 2017: Surgical and Radiologic Anatomy: SRA
Rui Sun, Yu Cai, Yi Yuan, Ji-Hong Zhao
This study aims to investigate the characteristics of adjacent anatomy of mandibular third molar germs (MTMGs). Three hundred Chinese patients aged 12 to 17 years old who received cone-beam computed tomography (CBCT) were enrolled. The continuity of cortical outline of inferior alveolar canals (IACs) in the region of MTMGs, the integrity of lingual bone cortex and the relationship between hard tissue part of MTMGs and IACs were investigated by observing CBCT data via the NNT viewer software. The age, degree of dental development, gender and location were recorded as variables...
October 26, 2017: Scientific Reports
M Dalle Carbonare, A Zavattini, M Duncan, M Williams, A Moody
The aim of this systematic review was to evaluate the incidence of damage to the inferior alveolar (IAN) and dental nerves in successful coronectomies, and to compare the results with coronectomies that failed. To the best of our knowledge no such analyses have been reported. Between January 1990 and October 2016 we surveyed published papers to find those that examined clinical outcomes after coronectomy. Fourteen met the criteria for final inclusion. Of 2087 coronectomies, 152 failed (7%). Successful procedures were associated with a low overall incidence of injury to the IAN (0...
November 2017: British Journal of Oral & Maxillofacial Surgery
Yuvaraj Vaithilingam, T S Balaji, Nithin Jude Joseph, Varsha Murthy, Suresh Kumar
INTRODUCTION: Lingual nerve damage is one of the common complications following mandibular third molar surgery. On considering the impact of lingual nerve damage on the patient's quality of life, it is necessary to exercise caution to minimize its occurrence. MATERIAL AND METHODS: Although many lingual retractors are available, in this article we describe an indigenously designed lingual retractor for use in mandibular third molar surgery. CONCLUSION: The indigenous lingual retractor described in this article provides advantages like clear access and excellent retention unlike conventional retractors...
December 2017: Journal of Maxillofacial and Oral Surgery
Sung Hwa Dong, Seok Hyun Kim, Jeon Gang Doo, Ah Ra Jung, Young Chan Lee, Young-Gyu Eun
PURPOSE: Intraoral removal of submandibular sialoliths is a surgical technique for the treatment of sialolithiasis and is reported to have excellent outcomes. The aim of this study was to determine the risk factors leading to complications of this procedure. PATIENTS AND METHODS: The medical records of 200 patients who had undergone intraoral removal of sialoliths from January 2006 through June 2015 were retrospectively reviewed. A telephone survey was used to check postoperative symptoms...
September 21, 2017: Journal of Oral and Maxillofacial Surgery
Shiori Sugawara, Shinji Okada, Ayano Katagiri, Hiroto Saito, Tatsuro Suzuki, Hiroki Komiya, Kohei Kanno, Kinuyo Ohara, Toshimitsu Iinuma, Akira Toyofuku, Koichi Iwata
The P2Y12 receptor expressed in satellite cells of the trigeminal ganglion is thought to contribute to neuropathic pain. The functional interaction between neurons and satellite cells via P2Y12 receptors and phosphorylated extracellular signal-regulated kinase 1/2 (pERK1/2) underlying neuropathic pain in the tongue was evaluated in this study. Expression of P2Y12 receptor was enhanced in pERK1/2-immunoreactive cells encircling trigeminal ganglion neurons after lingual nerve crush. The administration to lingual nerve crush rats of a selective P2Y12 receptor antagonist, MRS2395, attenuated tongue hypersensitivity to mechanical and heat stimulation and suppressed the increase in the relative numbers of calcitonin gene-related peptide (CGRP)-immunoreactive neurons and neurons encircled by pERK1/2-immunoreactive cells...
October 11, 2017: European Journal of Oral Sciences
Fumihiko Sato, Yume Uemura, Chiharu Kanno, Yumi Tsutsumi, Akiko Tomita, Ayaka Oka, Takafumi Kato, Katsuro Uchino, Jumpei Murakami, Tahsinul Haque, Yoshihisa Tachibana, Atsushi Yoshida
Little is known about how proprioceptive signals arising from muscles reach to higher brain regions such as the cerebral cortex. We have recently shown that a particular thalamic region, the caudo-ventromedial edge (VPMcvm) of ventral posteromedial thalamic nucleus (VPM), receives the proprioceptive signals from jaw-closing muscle spindles (JCMSs) in rats. In this study, we further addressed how the orofacial thalamic inputs from the JCMSs were transmitted from the thalamus (VPMcvm) to the cerebral cortex in rats...
December 4, 2017: Neuroscience
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