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Mandibular pathology

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https://www.readbyqxmd.com/read/27862232/radiographic-evaluation-in-clinical-practice-of-the-types-and-stage-of-incisor-tooth-resorption-and-hypercementosis-in-horses
#1
T J Henry, S M Puchalski, B Arzi, P H Kass, F J M Verstraete
BACKGROUND: There are several reports of incisor tooth resorption and hypercementosis in horses but to date studies have been limited in case numbers and to advanced lesions. Tooth resorption in other species is a radiographic diagnosis of types of resorption that are often identified before clinical signs. Our goal was to evaluate radiographically incisor tooth resorption in a large population of horses, utilising interpretation criteria from canine and human dentistry. OBJECTIVE: To document and classify incisor tooth resorption and hypercementosis...
November 12, 2016: Equine Veterinary Journal
https://www.readbyqxmd.com/read/27859254/influence-of-experimental-periodontitis-on-cardiac-oxidative-stress-in-rats-a-biochemical-and-histomorphometric-study
#2
O Köse, T Arabacı, H Yemenoglu, S Ozkanlar, N Kurt, I Gumussoy, S Gedikli, A Kara
BACKGROUND AND OBJECTIVE: The role of oxidative stress in the process of cardiac remodeling, hypertrophy and heart failure is a current topic. The purpose of this experimental study was to investigate the influences of periodontitis on levels of cardiac oxidative stress. MATERIAL AND METHODS: Twenty rats were separated into two groups: control and experimental periodontitis (EP). Periodontitis was induced by placing a 3.0 silk suture in the cervix of the left and right mandibular first molar teeth for 5 wk...
November 17, 2016: Journal of Periodontal Research
https://www.readbyqxmd.com/read/27857527/primary-hyperparathyroidism-jaw-tumor-syndrome-a-confusing-and-forgotten-diagnosis
#3
Doina Piciu, Andra Piciu, Elena Barbus, Claudiu Pestean, Maria Iulia Larg, Bogdan Fetica
BACKGROUND: Primary hyperparathyroidism is caused by the excessive growth of parathormone secretion, its consequence being hypercalcemia. The parathyroid adenoma is responsible for over half of primary hyperparathyroidism cases. The mandibular tumor can be the initial sign in the case of primary hyperparathyroidism. CASE PRESENTATION: We present the case of a 33 year old patient with history of a mandibular operated tumor, repetitive pathological fractures and hypercalcemia manifestations...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27855674/disk-displacement-eccentric-condylar-position-osteoarthrosis-misnomers-for-variations-of-normality-results-and-interpretations-from-an-mri-study-in-two-age-cohorts
#4
Jens C Türp, Anna Schlenker, Johannes Schröder, Marco Essig, Marc Schmitter
BACKGROUND: Clinical decision-making and prognostic statements in individuals with manifest or suspected temporomandibular disorders (TMDs) may involve assessment of (a) the position of articular disc relative to the mandibular condyle, (b) the location of the condyle relative to the temporal joint surfaces, and (c) the depth of the glenoid fossa of the temporomandibular joints (TMJs). The aim of this study was twofold: (1) Determination of the prevalence of these variables in two representative population-based birth cohorts...
November 17, 2016: BMC Oral Health
https://www.readbyqxmd.com/read/27847539/cyst-like-change-in-the-thyroid-cartilage-a-developmental-variant-in-children
#5
Karen Chetcuti, Shivaram Avula
Neck sonography is frequently encountered on ultrasound lists in the paediatric patient population. Anecdotally, one of the most frequent clinical indications is the investigation of a neck lump. While performing an ultrasound of the neck, structures other than those routinely assessed, such as the thyroid cartilage and mandibular cortex also come into view. Occasionally, pathology in these structures is also encountered, albeit less frequently. The purpose of this case report and review is to illustrate the ultrasound, computed tomography and magnetic resonance imaging appearances of cyst-like changes in the thyroid cartilage that are encountered in children, particularly in early adolescence...
November 2016: Ultrasound: Journal of the British Medical Ultrasound Society
https://www.readbyqxmd.com/read/27836445/-masticatory-system-and-maxillofacial-prosthesis-from-pathology-to-function-recovering
#6
S Vo Quang, J Dichamp
Maxillofacial prosthesis (MFP) can be defined as the art and science of esthetic and functional reconstruction of the facial bones, art because it uses hand-crafted and empirical rules, science because of its technical rigorism and its integration in medicine. MFP aims to multidisciplinary rehabilitate patients presenting with cutaneous and underlying structures defects, It also allows for functional speech and swallowing rehabilitation related to temporo-mandibular joint disorders. Whatever the origin, (traumatic, infectious ortumoral), surgical treatment of these TMJ disorders is usually not indicated in first-line...
November 8, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
https://www.readbyqxmd.com/read/27827993/hydrostatic-compress-force-enhances-the-viability-and-decreases-the-apoptosis-of-condylar-chondrocytes-through-integrin-fak-erk-pi3k-pathway
#7
Dandan Ma, Xiaoxing Kou, Jing Jin, Taotao Xu, Mengjie Wu, Liquan Deng, Lusi Fu, Yi Liu, Gang Wu, Haiping Lu
Reduced mechanical stimuli in many pathological cases, such as hemimastication and limited masticatory movements, can significantly affect the metabolic activity of mandibular condylar chondrocytes and the growth of mandibles. However, the molecular mechanisms for these phenomena remain unclear. In this study, we hypothesized that integrin-focal adhesion kinase (FAK)-ERK (extracellular signal-regulated kinase)/PI3K (phosphatidylinositol-3-kinase) signaling pathway mediated the cellular response of condylar chondrocytes to mechanical loading...
November 7, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27825664/-florid-osseous-dysplasia-management-of-a-symptomatic-case
#8
M Maccotta, L Radoï
INTRODUCTION: Florid osseous dysplasia is a rare and benign fibro-osseous pathology, in which bone is replaced by fibrous tissue and metaplastic bone. It can remain asymptomatic for a long time and is most often discovered incidentally during a radiological examination. Sometimes, patients are seen because of an infectious complication. OBSERVATION: An edentulous 62 years-old woman was referred for a painful mandibular swelling preventing insertion of her removable denture...
November 4, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
https://www.readbyqxmd.com/read/27822394/giant-cell-fibroma-in-a-two-year-old-child
#9
Anna Carolina Volpi Mello-Moura, Ana Maria Antunes Santos, Gabriela Azevedo Vasconcelos Cunha Bonini, Cristina Giovannetti Del Conte Zardetto, Cacio Moura-Netto, Marcia Turolla Wanderley
The giant cell fibroma is a benign nonneoplastic fibrous tumor of the oral mucosa. It occurs in the first three decades of life in the mandibular gingiva, predominantly, showing predilection for females. This article reports a case of giant cell fibroma in a 2-year-old girl, which is an uncommon age for this lesion. The patient was brought for treatment at the Research and Clinical Center of Dental Trauma in Primary Teeth, where practice for the Discipline of Pediatric Dentistry (Faculty of Dentistry, University of São Paulo, Brazil) takes place...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27800197/a-swelling-in-the-mouth-in-a-chronic-hemodialysis-patient
#10
Arnaud Devresse, Alexandros Raptis, Anne-Sophie Claes, Laura Labriola
Oral manifestations of severe secondary hyperparathyroidism include maxillary and mandibular deformities, brown tumors, dental abnormalities, and metastatic calcification of soft tissues. We report on a chronic hemodialysis (HD) woman with severe, uncontrolled secondary hyperparathyroidism and a painful, nontender mass in the floor of her mouth. The most likely clinical diagnosis was a bone tumoral lesion of the oral cavity, secondary to renal osteodystrophy. Unexpectedly, pathological examination showed characteristic features of ossifying fibroma (OF) of the jaw, a rare, benign fibroosseous lesion characterized by the replacement of normal bone by collagen and fibroblasts containing varying amounts of mineralized substance...
2016: Case Reports in Nephrology
https://www.readbyqxmd.com/read/27775805/craniofacial-morphology-and-airflow-in-children-with-primary-snoring
#11
V Luzzi, G Di Carlo, M Saccucci, G Ierardo, E Guglielmo, M Fabbrizi, A M Zicari, M Duse, F Occasi, G Conti, E Leonardi, A Polimeni
OBJECTIVE: Sleep-disordered breathing (SDB) is among the most common diseases and includes a group of pathological conditions that form a severity continuum from primary snoring (PS) to obstructive sleep apnea (OSA). SDB presents a multifactorial etiology and in children, it is often linked to adenotonsillar hypertrophy, which may lead to an alteration of the breathing pattern. Therefore, several studies hinted at the existence of a correlation between SDB and the alteration of craniofacial growth...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27771838/central-xanthoma-of-the-jaw-bones-a-benign-tumor
#12
Yeshwant B Rawal, Srinivasa R Chandra, James M Hall
Extragnathic xanthomas are seen in the bones or as soft tissue masses. They are often associated with hyperlipidemia and are considered as reactive or metabolic lesions. Only 19 cases of xanthomas of the jaws have been reported so far in the English literature. A total of ten cases of central xanthoma of the jaw bones were identified from the Oral and Maxillofacial Pathology biopsy services of the University of Washington and the Tufts University School of Dental Medicine, between the years 2000-2016. The demographic and clinical information on these cases was tabulated logically on the basis of age, gender, location and presence or absence of symptoms, extragnathic lesions and serum hyperlipidemia...
October 22, 2016: Head and Neck Pathology
https://www.readbyqxmd.com/read/27752195/a-standardized-formula-for-aesthetic-mandibular-reconstruction-using-an-osteocutaneous-fibular-free-flap
#13
Soung Min Kim, Emmanuel K Amponsah, Hui Young Kim, Ik Jae Kwon, Hoon Myoung, Jong Ho Lee
: Ameloblastoma is the most common benign odontogenic tumor of the jaw, and expansional growth of a huge untreated ameloblastoma can result in disturbances in facial aesthetics and function, such as difficulty with mouth opening, swallowing, chewing, breathing, neurologic deficits, and pathologic fractures. Radical wide resection with safety margins and subsequent reconstruction is generally recommended. A fibular free flap (FFF) is commonly used to reconstruct the mandible in order to adequately restore both aesthetic appearance and function...
September 2016: Ghana Medical Journal
https://www.readbyqxmd.com/read/27728775/parapharyngeal-schwannoma-of-the-mandibular-nerve-associated-with-auditory-changes
#14
Jeffrey Y Tsai, Barry C Boyd, Ted C Ondracek, Etern S Park
We present a case of a parapharyngeal schwannoma of the mandibular nerve with intraosseous extension into the mandible. The initial symptoms included decreased auditory acuity, with subsequent magnetic resonance imaging findings suggestive of Eustachian tube obstruction. This represents a rare symptom of schwannomas of the mandibular nerve. Owing to the degree of bony expansion and cortical thinning of the adjacent mandibular ramus, concern existed for a pathologic fracture. Treatment involved complete excision of the lesion using hemimandibulectomy with second stage reconstruction...
September 15, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27726836/-normal-and-pathologic-mandible-development-practical-deductions-in-maxillo-dento-facial-orthopedics
#15
Jean-Michel Salagnac
INTRODUCTION: The mandible consists of different segments, each of which possess its own specific characteristics regarding emergence, ossification during growth and pathologies. Orthodontists need to be very familiar with these developmental anomalies if they are to avoid failure in their orthopedic or orthodontic treatments and in order to understand the reasons for the lack of success of "conventional" treatments. Each segment must develop correctly if the mandible is to achieve optimal development and occupy a normal position within the cranio-facial complex...
September 2016: L' Orthodontie Française
https://www.readbyqxmd.com/read/27690832/intraoral-extraction-of-an-ectopic-mandibular-third-molar-detected-in-the-subcondylar-region-without-a-pathological-cause-a-case-report-and-literature-review
#16
Kohei Okuyama, Yuki Sakamoto, Tomofumi Naruse, Akiko Kawakita, Souichi Yanamoto, Kohei Furukawa, Masahiro Umeda
PURPOSE: To present a case report on the presence of an ectopic mandibular third molar (EMTM), the surgical treatment, and outcome. CASE REPORT: A 63-year-old woman presented with right preauricular facial swelling, limited jaw function, and pain. Radiographic assessment demonstrated an EMTM positioned in the superoposterior aspect of the ramus. Radiographically, there was a bony tunnel extending from the third molar to distal of the second molar. The patient was treated by an intraoral approach on the medial aspect of the ramus for removal of the ectopic third molar, as well as the tissue in the bony tunnel...
October 3, 2016: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/27688170/late-mandibular-fracture-occurring-in-the-postoperative-period-after-third-molar-removal-systematic-review-and-analysis-of-124-cases
#17
W R Pires, J P Bonardi, L P Faverani, G A C Momesso, X M J P Muñoz, A F M Silva, S R Panzarini, A P F Bassi, D Ponzoni
Factors associated with the diagnosis, aetiology, and treatment of mandibular fractures occurring during the postoperative period following the removal of a lower third molar are discussed. The following databases were searched using specific key words: PubMed/MEDLINE, LILACS, Embase, and Scopus. The search yielded 124 cases. Sex, age, side, tooth position and angulation, bone impaction, relationship between the tooth and the inferior alveolar nerve, local pathological conditions, aetiology of the fracture, symptomatology, and time between surgery and fracture, as well as any displacement of the fracture and the treatment of the fracture, were evaluated...
September 26, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27681861/radiographic-signs-of-pathology-determining-removal-of-an-impacted-mandibular-third-molar-assessed-in-a-panoramic-image-or-cbct
#18
Louise Hauge Matzen, Lars Schropp, Rubens Spin-Neto, Ann Wenzel
OBJECTIVES: To 1)compare pathological findings related to the mandibular third molar in panoramic images (PAN) and CBCT; 2)estimate the frequency of removals if pathological findings were indicative; and 3)assess factors in PAN associated with resorption and marginal bone loss at the second molar as observed in CBCT. METHODS: 379 mandibular third molars were examined with PAN and CBCT. Four observers registered resorption and marginal bone loss at the second molar and increased periodontal space at the third molar in both imaging modalities...
September 28, 2016: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/27681036/drill-related-root-injury-caused-by-intraoperative-intermaxillary-fixation-an-analysis-of-1067-screw-applications
#19
Stefan Hartwig, Andreas Boettner, Christian Doll, Jan O Voss, Moritz Hertel, Saskia Preissner, Jan D Raguse
BACKGROUND/AIMS: Intermaxillary fixation is a standard procedure for the treatment of mandibular fractures or in orthognathic surgery. Pre-drilling for screws poses the risk of accidental tooth-root injury, potentially leading to further pathological processes. Limited evidence about accidental tooth injury during intermaxillary fixation is available due to heterogenous study designs. The aim of this study was to evaluate the risk of root trauma using pre-drilled transgingival fixation screws and the clinical consequences for the affected teeth...
September 28, 2016: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/27680099/mandibular-intraosseous-pseudocarcinomatous-hyperplasia-a-case-report
#20
Andreas Fuchs, Stefan Hartmann, Karen Ernestus, Grit Mutzbauer, Christian Linz, Roman C Brands, Alexander C Kübler, Urs D A Müller-Richter
BACKGROUND: Mandibular pseudocarcinomatous hyperplasia is a rare and generally benign pathology. We report on one of these rare cases. CASE PRESENTATION: The case history of a 73-year-old white man stated that he had a carcinoma of the oropharynx, which was primarily treated with radiotherapy and chemotherapy 4 years prior. As a result of radiotherapy he developed an osteoradionecrosis of his mandible and a consecutive pathological fracture of his left mandibular angle...
September 29, 2016: Journal of Medical Case Reports
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