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https://www.readbyqxmd.com/read/29792378/location-and-distribution-of-craniomaxillofacial-fractures-in-45-cats-presented-for-the-treatment-of-head-trauma
#1
Ingrid Tundo, Peter Southerden, Andrew Perry, Richard M Haydock
Objectives The aim of this retrospective study was to describe the location and distribution of craniomaxillofacial (CMF) fractures in 45 cats presented to a veterinary referral centre between 2012 and 2017. Methods Cats with a history of head trauma, one or more CMF fractures and a pretreatment CT scan of the CMF region were included in this study. For the purpose of the study, the CMF skeleton was divided into 15 functional anatomical regions and the fracture sites were allocated to one of these functional regions...
May 1, 2018: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29791692/prosthetic-orthodontic-and-implant-supported-rehabilitation-of-five-maxillary-anterior-teeth-with-alveolar-bone-loss
#2
Odilon Guariza-Filho, Cristiano Miranda de Araujo, Angela Graciela Deliga Schroder, Orlando Motohiro Tanaka, Ricardo Kern, Antonio Carlos Ruellas
INTRODUCTION: Treatment of maxillofacial injuries is complex and requires the establishment of a comprehensive and accurate diagnosis and correct treatment planning. OBJECTIVE: The objective of this case report was to describe the re-treatment of a 27-year-old woman who was involved in a severe car accident that resulted in the loss of five anterior teeth and alveolar bone, and whose previous orthodontic and surgical treatments had been unsuccessful. CASE REPORT: In this case, the space for the missing mandibular molar was reopened to allow for rehabilitation...
January 2018: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/29791685/relationship-between-mandibular-symphysis-dimensions-and-mandibular-anterior-alveolar-bone-thickness-as-assessed-with-cone-beam-computed-tomography
#3
Pimchanok Foosiri, Korapin Mahatumarat, Soontra Panmekiate
OBJECTIVE: To determine the relationship between symphysis dimensions and alveolar bone thickness (ABT) of the mandibular anterior teeth. METHODS: Cone-beam computed tomography images of 51 patients were collected and measured. The buccal and lingual ABT of the mandibular anterior teeth was measured at 3 and 6 mm apical to the cemento-enamel junction (CEJ) and at the root apices. The symphysis height and width were measured. The symphysis ratio was the ratio of symphysis height to symphysis width...
January 2018: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/29791200/evaluation-of-mandibular-odontogenic-keratocyst-and-ameloblastoma-by-panoramic-radiograph-and-computed-tomography
#4
Daniel Berretta Moreira Alves, Fabrício Mesquita Tuji, Fábio Abreu Alves, André Caroli Rocha, Alan Roger Dos Santos-Silva, Pablo Agustin Vargas, Márcio Ajudarte Lopes
OBJECTIVE: The purpose of this study was to describe and compare the main imagenological features of mandibular ameloblastomas and odontogenic keratocyst (OKC) using panoramic radiograph (PR) and computed tomography (CT). METHODS: The sample consisted of 9 cases of ameloblastomas and 9 cases of OKC. PR and CT images were analyzed according to shape, internal structure, borders, associated unerupted tooth, root resorption, expansion and perforation of cortical bones...
May 23, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29791187/a-single-lab-test-to-aid-pierre-robin-sequence-severity-diagnosis
#5
Artur Fahradyan, Beina Azadgoli, Michaela Tsuha, Mark M Urata, Stacey H Francis
OBJECTIVE: The workup of patients with Pierre Robin sequence (PRS) consists of a physical examination, O2 saturation, and polysomnography to determine the severity of respiratory obstruction and need for surgery. We suggest that capillary blood gas (CBG) may be a better physiologic representation of airway obstruction and should be routinely used in the management of patients with PRS. DESIGN: This is a multicenter study based on a retrospective review of medical records...
January 1, 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29790429/effects-of-rapid-palatal-expansion-rpe-and-twin-block-mandibular-advancement-device-mad-on-pharyngeal-structures-in-class-ii-pediatric-patients-from-cluj-napoca-romania
#6
Ovidiu Dănuţ Rădescu, Horațiu Alexandru Colosi, Silviu Albu
OBJECTIVE: To compare cephalometric changes of pharyngeal structures after rapid palatal expansion (RPE) with those induced by a twin block mandibular advancement device (MAD) with palatal expansion capability. METHODS: This retrospective study investigated 55 Class II pediatric patients, divided into two groups: 29 patients treated with RPE and 26 patients treated with MAD. Lateral cephalometric measurements were compared before and after treatment. RESULTS: Changes in pharyngeal airway space were statistically significant in both groups (p < 0...
May 23, 2018: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/29789889/developing-a-reference-mri-database-for-temporomandibular-joints-in-healthy-children-and-adolescents
#7
Thitiporn Junhasavasdikul, Aryan Abadeh, Mirkamal Tolend, Andrea S Doria
BACKGROUND: Recognition of normal temporomandibular joints (TMJs) is essential to assess arthropathic changes. Few, if any, prior studies have evaluated the morphological appearance of growing TMJs by magnetic resonance (MR) examinations in the pediatric population. OBJECTIVE: This study aimed to determine normative osseous appearance of growing TMJs according to age and gender, both qualitatively and quantitatively, concerning structural and bone marrow changes...
May 22, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29789194/operative-technique-for-benign-submandibular-gland-mass-without-identifying-the-mandibular-branch-of-the-facial-nerve
#8
Yusuke Kikuoka, Ryo Kawata, Masaaki Higashino, Tetsuya Terada, Shin-Ichi Haginomori
OBJECTIVE: The marginal mandibular branch of the facial nerve must be protected during surgery for benign diseases of submandibular gland. Methods for protecting the marginal mandibular branch include the nerve identification method and the non-identification method. METHODS: We performed submandibular gland surgery in 138 patients with benign submandibular gland diseases using the non-identification method to preserve the marginal mandibular branch. In brief, the submandibular gland capsule is incised at the inferior border of the gland and detached along the gland parenchyma...
May 19, 2018: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29787301/innovative-surgical-treatment-of-severe-cherubism
#9
Ji H Son, Danielle C Marshall, Manish Valiathan, Todd Otteson, Gerald Ferretti, Paula A Grigorian, Carol Rosen, Devra Becker, David Rowe, Hooman Soltanian, Gregory Lakin
BACKGROUND: Cherubism is an autosomal dominant syndrome characterized by excessive bilateral maxillomandibular bony degeneration and fibrous tissue hyperplasia. Conservative management is the preferred treatment as cherubism has a self-limiting course. Functional or emotional disturbances may, however, demand surgical intervention. We report a patient who underwent surgical intervention. Method/Description: He had significant enlargement of lower cheeks and bilateral lower lid scleral show...
January 1, 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29785677/analysis-of-the-frequency-of-visualization-of-morphological-variations-in-anatomical-bone-features-in-the-mandibular-interforaminal-region-through-cone-beam-computed-tomography
#10
Marilza do Carmo Oliveira, Tamara Kerber Tedesco, Thais Gimenez, Sergio Allegrini
PURPOSE: The purpose of this study was to analyze the frequency of visualization of anatomical bone features and their possible variations in the mandibular interforaminal region through cone-beam computed tomography (CBCT). METHODS: This is a cross-sectional study that evaluated CBCT scans of the mandible of 141 women and 61 men, obtained by imaging archives from two private clinics of dental radiology. The study analyzed the frequency of visualization of: lingual symphyseal foramen (LSF), additional mental foramen (AdMF), absence of mental foramen (AbMF), mandibular incisive canal (MIC), and anterior loop (AL)...
May 21, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29785626/sex-attractant-pheromones-of-virgin-queens-of-sympatric-slave-making-ant-species-in-the-genus-polyergus-and-their-possible-roles-in-reproductive-isolation
#11
Les Greenberg, Christine A Johnson, James C Trager, J Steven McElfresh, Joshua Rodstein, Jocelyn G Millar
Species of the ant genus Polyergus are social parasites that steal brood from colonies of their hosts in the closely related genus Formica. Upon emergence as adults in a mixed population, host Formica workers carry out all the normal worker functions within the Polyergus colony, including foraging, feeding, grooming, and rearing brood of the parasitic Polyergus ants. Some unmated Polyergus gynes (queens) run in the raiding columns of their colonies and attract males by releasing a pheromone from their mandibular glands...
May 22, 2018: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29785343/perinatal-specimens-of-maiasaura-from-the-upper-cretaceous-of-montana-usa-insights-into-the-early-ontogeny-of-saurolophine-hadrosaurid-dinosaurs
#12
Albert Prieto-Marquez, Merrilee F Guenther
Perinatal specimens of hadrosaurids discovered in the late 1970's by field crews from Princeton University were significant in providing evidence of the early ontogenetic stages in North American dinosaurs. These specimens from the Campanian (Upper Cretaceous) Two Medicine Formation of Montana consist of over a dozen skeletons referable to the saurolophine hadrosaurid Maiasaura peeblesorum , but never fully figured or described. Here, we provide a more complete documentation of the morphology of these specimens, along with an examination of variation during a large span of the development of saurolophine hadrosaurids...
2018: PeerJ
https://www.readbyqxmd.com/read/29785164/endodontic-management-of-mandibular-second-premolar-with-three-canals
#13
Bonny Paul, Kavita Dube
Mandibular premolar can present a complex pulp anatomy. Apart from the usual single root and single canal a many other variations may be seen. Hence not only a thorough knowledge of the root canal anatomy but also it's variations are indispensable pre requisites for the success of any endodontic treatment. Good magnification and CBCT scans will definitely be beneficial for successful endodontic treatment. The present case provides evidence that mandibular premolars may have more than one canal.
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29785160/observational-study-of-the-bisphosphonate-related-osteonecrosis-of-jaws
#14
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/29785152/association-of-midline-discrepancy-with-tempromandibular-joint-disorder-a-systematic-review
#15
REVIEW
Sandhya Jain, Neetu Sharma, Pallav Patni, Deshraj Jain
Aim: The aim is to evaluate the association between midline discrepancies and tempromandibular disorders (TMDs). Methods: Literature search was performed by using various search engines to include human studies in English. TMDs include a wide variety of signs and symptoms such as pain in and around TMJ, jaw muscles, clicking and locking of jaws, pain during mandibular movement and restricted mandibular movements. The etiology is multifactorial, including one or several of the following factors like severe malocclusions (increased overjet, retroclination of incisors, cross bite, CR CO discrepancies etc), stress and psychological factors, structural abnormalities as possible etiology...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29782812/what-variables-are-associated-with-the-outcome-of-arthroscopic-lysis-and-lavage-surgery-for-internal-derangement-of-the-temporomandibular-joint
#16
Tyler H Haeffs, Lindsay N D'Amato, Shehryar N Khawaja, David A Keith, Steven J Scrivani
PURPOSE: Arthroscopic lysis and lavage surgery (AS) is an effective modality that can decrease pain and increase maximum interincisal opening (MIO) in patients with internal derangement (ID) of the temporomandibular joint (TMJ). However, some patients remain in pain or have limited mandibular range of motion despite AS. The purpose of this study was to determine the effectiveness, prevalence of adverse effects, and predictors of response to TMJ AS in patients with TMJ arthralgia and ID...
April 26, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29782200/impact-of-pediatric-obstructive-sleep-apnea-on-the-development-of-class-ii-hyperdivergent-patients-receiving-orthodontic-treatment-a-pilot-study
#17
Tingting Zhao, Peter Ngan, Fang Hua, Jie Zheng, Shunquan Zhou, Man Zhang, Hui Xiong, Hong He
OBJECTIVES: To conduct a pilot study to determine if the presence of obstructive sleep apnea (OSA) influences the orthodontic treatment outcome of Class II hyperdivergent patients receiving comprehensive orthodontic treatment. MATERIALS AND METHODS: Patients between the ages of 12 and 14 who received orthodontic treatment at the Hospital of Stomatology, Wuhan University, China, were included in this study. Patients were divided into two groups: the OSA group and the control group, based on the outcome of pretreatment polysomnography findings and lateral cephalometric radiograph examination...
May 22, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29781765/individualized-titanium-mesh-combined-with-platelet-rich-fibrin-and-deproteinized-bovine-bone-a-new-approach-for-challenging-augmentation
#18
Jonas Lorenz, Sarah Al-Maawi, Robert Sader, Shahram Ghanaati
Autologous bone transfer is regarded as the gold standard for ridge augmentation before dental implantation, especially in severe bony defects caused by tumor resection or atrophy. In addition to the advantages of autologous bone, transplantation has several disadvantages, such as secondary operation, increased morbidity and pain. The present study reports, for the first time, a combination of a xenogeneic bone substitute (BO) with platelet-rich fibrin (PRF), which is a fully autologous blood concentrate derived from the patient's own peripheral blood by centrifugation...
May 21, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29781536/resorption-of-the-mandibular-residual-ridge-a-micro-ct-and-histomorphometrical-analysis
#19
Hannah Dekker, Engelbert A J M Schulten, Chris M Ten Bruggenkate, Elisabeth Bloemena, Leo van Ruijven, Nathalie Bravenboer
OBJECTIVES: The aim of this study was to investigate whether the extent of mandibular resorption and gender is related to the bone turnover and microarchitecture of the edentulous mandible. PARTICIPANTS AND METHODS: A mandibular bone sample was obtained at canine position from 36 edentulous participants (50% women; mean age: 65 years) during dental implant surgery. All female participants were postmenopausal. Mandibular height, duration of edentulous state and resorption pattern (Cawood classification) were recorded...
May 21, 2018: Gerodontology
https://www.readbyqxmd.com/read/29781451/comparisons-of-the-computed-tomographic-scan-and-panoramic-radiography-before-mandibular-third-molar-extraction-surgery
#20
Qian Luo, Wanglun Diao, Lan Luo, Yong Zhang
BACKGROUND Mandibular third molar extraction surgery has a postoperative complication of hypoesthesia of the lower lip and/or chin. The objective of the study was to determine if preoperative radiographic examination by panoramic radiography and computed tomography (CT) scan can predict postoperative complications of mandibular third molar extraction surgery. MATERIAL AND METHODS In total, 479 patients who had mandibular third molar extraction surgery were included in this cross-sectional study. Patients had panoramic radiographies and CT scans to determine the relationship of the tooth, the canal, and the buccolingual position...
May 21, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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