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Mandibular pathology

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https://www.readbyqxmd.com/read/29785160/observational-study-of-the-bisphosphonate-related-osteonecrosis-of-jaws
#1
Andreea Elena Lungu, Madalina Anca Lazar, Andrada Tonea, Horatiu Rotaru, Rares Calin Roman, Mindra Eugenia Badea
Introduction: The bisphosphonate-related osteonecrosis of the jaw was first referred to in 2003. Bisphosphonates action is focused on the osteoclasts. The drastic inhibition of the osteoclastic function is harmful for the jaws which are the only bones of the human skeleton in relative contact with the external environment. The adverse effects of the bisphosphonate-related therapy include the pathology for which they are prescribed, the atypical fractures in pathological bone. Method: The aim of this research was to analyze the risk factors and the treatment methods in case of osteonecrosis of the jaws...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29780198/sva-shape-variation-analyzer
#2
Priscille de Dumast, Clement Mirabel, Beatriz Paniagua, Marilia Yatabe, Antonio Ruellas, Nina Tubau, Martin Styner, Lucia Cevidanes, Juan C Prieto
Temporo-mandibular osteo arthritis (TMJ OA) is characterized by progressive cartilage degradation and subchondral bone remodeling. The causes of this pathology remain unclear. Current research efforts are concentrated in finding new biomarkers that will help us understand disease progression and ultimately improve the treatment of the disease. In this work, we present Shape Variation Analyzer (SVA), the goal is to develop a noninvasive technique to provide information about shape changes in TMJ OA. SVA uses neural networks to classify morphological variations of 3D models of the mandibular condyle...
February 2018: Proceedings of SPIE
https://www.readbyqxmd.com/read/29771049/-a-case-report-of-tracheotomy-complicated-by-hemorrhage-after-radical-operation-of-tongue
#3
M Y Sun, H J Wu
A 55-year old middle-aged male presented swelling lymph nodes in neck and mass in left tongue for three mouths. Physical examination shows a size 5 cm×5 cm mass in tongue and went over the midline. The mandibular lymph nodes were touched with moderate tenderness and little mobility in bilateral. The laboratory results, function of the kidney and heart liver, nasopharyngeal fiber area were basically normal. The result of CT and MRI shows the mass reached the lingual muscle layer and several suspected metastatic lymph nodes in neck...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29764822/numb-chin-syndrome-an-ominous-sign-of-mandibular-metastasis
#4
Abdul Razak, Bee See Goh, Jothi Raamahlingam Rajaran, Abd Jabar Nazimi
A 51-year-old woman a known case of stage 2 breast carcinoma in 2006 and underwent left mastectomy performed in the same year presented with bilateral lower limb pain suggestive of spinal pathology, and left chin numbness, both of 2 weeks' duration. Examination revealed left mandibular hypoesthesia without any other sign or symptoms. Orthopantomogram was unremarkable apart from mild alveolar bone expansion at tooth 36 area, which was extracted 3 months earlier. Subsequently, a full-body positron emission tomography contrast enhanced computer tomography revealed hypermetabolic lesions of her axial (excluding skull) and appendicular skeleton...
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29755527/dentigerous-cystic-changes-in-the-follicles-associated-with-radiographically-normal-impacted-mandibular-third-molars
#5
Ashok Dongol, Alok Sagtani, Mehul Rajesh Jaisani, Arpita Singh, Ashish Shrestha, Anju Pradhan, Pradeep Acharya, Anjani Kumar Yadav, Ram Prasad Yadav, Arun Kumar Mahat, Iccha Kumar Maharjan, Leeza Pradhan
Objective: To assess the incidence of dentigerous cystic changes in the follicles of radiographically normal impacted mandibular third molars. Methods: One hundred and thirteen follicles obtained after surgical removal of impacted mandibular third molars with radiolucency of less than 2.5 mm in the radiograph were sent for histopathologic evaluation to evaluate pathologic changes. Results: The incidence of dentigerous cystic changes observed was 15...
2018: International Journal of Dentistry
https://www.readbyqxmd.com/read/29752778/reactive-oral-lesions-associated-with-dental-implants-a-systematic-review
#6
REVIEW
Fazele Atarbashi-Moghadam, Saede Atarbashi-Moghadam, Mahshid Namdari, Shokoufeh Shahrabi-Farahani
Reactive lesion formation around dental implants a complication that has been given much consideration. These lesions can lead to marginal bone loss, and consequently, implant failure. In the present systematic review, all reported reactive lesions associated with dental implants in the literature were assessed. An electronic search was performed using PubMed Central, Scopus, Google Scholar, and Science Direct. The search strategy was limited to human studies (case reports and case series), full-text English language articles, published until May 2017...
May 11, 2018: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/29723657/the-use-of-reconstruction-plates-to-treat-benign-mandibular-pathological-lesions-a-retrospective-clinical-study
#7
S C Isler, B Keskin Yalcin, S Cakarer, E Cansiz, A Gumusdal, C Keskin
INTRODUCTION: The purpose of this retrospective clinical study was to evaluate the indications for and the utility of reconstruction plates in the management of benign mandibular pathological lesions. The complications associated with plate use were also assessed. PATIENTS AND METHODS: The clinical and radiological data of 23 patients (16 males, 7 females) with large, benign mandibular pathologies were evaluated. During operations, reconstruction plates were used to prevent mandibular fracture or to allow for bone reconstruction after segmental or disarticulation resection...
April 30, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29715060/ameloblastic-carcinoma-in-situ-review-of-literature-and-a-case-presentation-in-a-pediatric-patient
#8
Artur Fahradyan, Lauren Odono, Jeffrey A Hammoudeh, Lori Kathryn Howell
Ameloblastic carcinomas are rare malignant lesions with 3 mandibular pediatric cases reported in the literature. We present a case of ameloblastic carcinoma in situ in a 15-year-old male with a right mandibular cystic lesion on computed tomography. The incisional biopsy revealed plexiform ameloblastoma. Due to the infiltrating and aggressive nature of the tumor, the patient underwent hemimandibulectomy and immediate reconstruction with a vascularized osteocutaneous fibula free flap. The final pathology was read as ameloblastic carcinoma in situ...
January 1, 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29709331/the-importance-of-lymph-node-ratio-for-patients-with-mandibular-infiltration-of-oral-squamous-cell-carcinoma
#9
Ali-Farid Safi, Martin Kauke, Andrea Grandoch, Hans-Joachim Nickenig, Joachim Zöller, Matthias Kreppel
PURPOSE: Lymph node ratio (LNR) essentially improves assessment of prognosis and therapeutic decision making for patients with oral squamous cell carcinoma, as it considers both the number of positive lymph nodes and the number of dissected lymph nodes. Mandibular infiltration by oral squamous cell carcinoma is a vital clinicopathological feature, significantly worsens prognosis. However, to the best of our knowledge, data on the influence of LNR on prognosis for patients with OSCC and mandibular infiltration are not available...
April 5, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29676366/pindborg-tumor-pathology-with-special-stains
#10
Swati Shrikant Gotmare, Treville Pereira, Subraj Shetty, Kashmira S Kesarkar
Odontogenic tumors constitute a wide spectrum of lesions ranging from malignant and benign neoplasms to dental hamartomas, all derived from the epithelial and ectomesenchymal remnants of the tooth forming apparatus. Calcifying epithelial odontogenic tumor (CEOT) is an uncommon, benign epithelial odontogenic tumor first described by Pindborg in 1956. It is a universally accepted eponym for this neoplasm. Pindborg tumor or CEOT is a locally aggressive neoplasm that accounts for 1% of the total odontogenic tumors, with recurrence in 14% of cases...
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29663186/mandibular-canal-branching-assessed-with-cone-beam-computed-tomography
#11
Mauricio Augusto Aquino de Castro, Sâmila Gonçalves Barra, Manuel Oscar Lagravere Vich, Mauro Henrique Guimaraes Abreu, Ricardo Alves Mesquita
PURPOSE: The mandibular canal must be considered in dental procedures to avoid injuries of the alveolar inferior nerve. The occurrence of anatomical variations of the mandibular canal increases the risk of neurovascular injuries. The purpose of this study was to identify and describe the prevalence of mandibular canal branching (MCB) using cone beam computer tomography (CBCT). METHODS: Seven hundred standardized CBCTs were selected. The images were evaluated for the presence of MCB and for the detection of pathologies that could affect the structure of the canals...
April 16, 2018: La Radiologia Medica
https://www.readbyqxmd.com/read/29658923/micro-dissection-of-enamel-organ-from-mandibular-incisor-of-rats-exposed-to-environmental-toxicants
#12
Sophia Houari, Sylvie Babajko, Sophia Loiodice, Ariane Berdal, Katia Jedeon
Enamel defects resulting from environmental conditions and ways of life are public health concerns because of their high prevalence. These defects result from altered activity of cells responsible for enamel synthesis named ameloblasts, which present in enamel organ. During amelogenesis, ameloblasts follow a specific and precise sequence of events of proliferation, differentiation, and death. A rat continually growing incisors is a suitable experimental model to study ameloblast activity and differentiation stages in physiological and pathological conditions...
March 29, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29649431/diagnosis-and-management-of-children-with-mycobacterium-abscessus-infections-in-the-head-and-neck
#13
Justine Moe, Roy Rajan, Shelley Caltharp, Shelly Abramowicz
PURPOSE: Controversy exists regarding the most appropriate treatment strategy for children with nontuberculous mycobacterial (NTM) cervical lymphadenitis. Mycobacterium abscessus (MAB) is an uncommon cause of NTM cervical lymphadenitis. The purpose of the present study was to evaluate diagnosis, management, and treatment outcomes in children with MAB-associated cervical lymphadenitis resulting from a pulpotomy. MATERIALS AND METHODS: This was a retrospective chart review of children with NTM lymphadenitis of the head and neck caused by MAB treated at Children's Healthcare of Atlanta hospitals (Atlanta, GA)...
March 22, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29627366/a-study-on-etiopathogenesis-and-clinical-features-of-multi-headed-bifid-and-trifid-mandibular-condyles-and-review-of-the-literature
#14
Orhan Güven
PURPOSE: The formations of second or more condylar heads are considered as rare anomalies. Fourteen multi-headed condyles (MHC) were presented; 13 of these were bifid mandibular condyles (BMC), whereas one exceptionally rare case was a trifid mandibular condyle (TMC). The TMC presented in this paper is the eighth case reported in the literature. In this paper, etiopathogenesis, types, and treatments are discussed. MATERIALS AND METHODS: Patients were classified according to their status, etiologies, gender, functions of the mandible, interocclusal distances, pathological conditions, types, and treatment received...
March 1, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29625584/temporomandibular-joint-regeneration-proposal-of-a-novel-treatment-for-condylar-resorption-after-orthognathic-surgery-using-transplantation-of-autologous-nasal-septum-chondrocytes-and-the-first-human-case-report
#15
Ricardo de Souza Tesch, Esther Rieko Takamori, Karla Menezes, Rosana Bizon Vieira Carias, Cláudio Leonardo Milione Dutra, Marcelo de Freitas Aguiar, Tânia Salgado de Sousa Torraca, Alexandra Cristina Senegaglia, Cármen Lúcia Kuniyoshi Rebelatto, Debora Regina Daga, Paulo Roberto Slud Brofman, Radovan Borojevic
BACKGROUND: Upon orthognathic mandibular advancement surgery the adjacent soft tissues can displace the distal bone segment and increase the load on the temporomandibular joint causing loss of its integrity. Remodeling of the condyle and temporal fossa with destruction of condylar cartilage and subchondral bone leads to postsurgical condylar resorption, with arthralgia and functional limitations. Patients with severe lesions are refractory to conservative treatments, leading to more invasive therapies that range from simple arthrocentesis to open surgery and prosthesis...
April 7, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29602343/incisor-malalignment-and-the-risk-of-periodontal-disease-progression
#16
Ahmed A Alsulaiman, Elizabeth Kaye, Judith Jones, Howard Cabral, Cataldo Leone, Leslie Will, Raul Garcia
INTRODUCTION: The objective of this study was to investigate the association between incisor crowding, irregularity, and periodontal disease progression in the anterior teeth. METHODS: Data collected over 35 years from men enrolled in the Veterans Affairs Dental Longitudinal Study included information concerning pocket depth and alveolar bone loss. Plaster casts of the maxillary (n = 400) and mandibular (n = 408) arches were available for baseline measurements...
April 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29594083/large-parotid-gland-lipoblastoma-in-a-teenager
#17
Danny Jandali, Ashley Heilingoetter, Ritu Ghai, Jill Jeffe, Samer Al-Khudari
Background: Lipoblastomas are rare benign neoplasms that arise from fetal white fat cells. They are typically found in children under the age of 3 and have been reported in the mediastinum, extremities, and infrequently in the head and neck. We present a rare case of a lipoblastoma arising from the parotid gland and the first known report of a parotid lipoblastoma in a teenager. Case presentation: A 15-year-old male presented with a painless, slowly enlarging parotid mass and left facial swelling...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29583032/evaluation-of-natural-mandibular-shape-asymmetry-an-approach-by-using-elliptical-fourier-analysis
#18
Tania C Niño-Sandoval, Carlos F Morantes Ariza, Clementina Infante-Contreras, Belmiro Ce Vasconcelos
OBJECTIVES: The purpose of this study was to demonstrate that asymmetry is a natural occurring phenomenon in the mandibular shape by using Elliptical Fourier Analysis. METHODS: 164 digital orthopantomographs from Colombian patients of both sexes aged 18 to 25 years were collected. Curves from left and right hemimandible were digitized. An Elliptical Fourier Analysis was performed with 20 harmonics. In the general sexual dimorphism a Principal Component Analysis (PCA) and a Hotelling T2 from the multivariate warp space were employed...
March 27, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29565472/a-novel-universal-device-lingual-ring-ri-p-a-ra-for-tmds-and-cranio-cervico-mandibular-pains-preliminary-results-of-a-randomized-control-clinical-trial
#19
A Rampello, P Papi, G Pompa, A Rampello, A Polimeni, C Di Paolo
OBJECTIVE: The aim of this study was to evaluate functionality and clinical application of a novel immediate device in the treatment of temporomandibular disorders (TMDs). To address the research purpose, authors developed and implemented a randomized control clinical trial. PATIENTS AND METHODS: Eighty patients were enrolled in this study and were randomly divided into two subgroups based on the treatment applied: patient group (PG) and control group (CG). The CG was not subjected to any kind of treatment, even placebo, in order to be able to assess the spontaneous development of the pathology over time...
March 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29563362/difficulties-in-diagnosis-of-sialolithiasis-a-case-series
#20
Svitlana Veniaminivna Kolomiiets, Kristina Oleksandrivna Udaltsova, Tetiana Andriivna Khmil, Alina Mykolaiivna Yelinska, Olena Anatoliivna Pisarenko, Viktoriya Ihorivna Shynkevych
Sialolithiasis is one of the most common and extensively obstructive disorders of the major salivary glands. Here, we report 3 cases of sialolithiasis in the submandibular salivary gland showing symptomatic similarities to other dental and non-dental disorders of the maxillofacial area. How the various clinical features of this condition and findings on 3D-CT may lead to a misdiagnosis are also discussed. In the first case, that of a 45-year-old woman, a final diagnosis of a non-radiopaque submandibular sialolith allowed the initially indicated surgical extraction of a malerupted and semi-impacted right mandibular 3rd molar to be abandoned...
2018: Bulletin of Tokyo Dental College
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