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https://www.readbyqxmd.com/read/28527851/intentional-replantation-of-an-avulsed-immature-permanent-incisor-a-case-report
#1
Claudio Maniglia-Ferreira, Fabio de Almeida Gomes, Marcelo de Morais Vitoriano
This case report discusses the successful endodontic treatment of an open apex maxillary right permanent central incisor that had been avulsed and incorrectly replanted in a 7-year-old patient. The tooth was carefully re-extracted followed by cleaning of the alveolar socket and immediate replantation. However, pulp necrosis was diagnosed, and regenerative endodontic treatment was performed. The root canal system was disinfected by passive ultrasonic irrigation with 2.5% sodium hypochlorite. At the first visit, the tooth was repositioned and immobilized with an appropriate semirigid splint...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28523308/radiological-and-optical-coherence-tomography-aspects-in-external-root-resorption
#2
Sanda Mihaela Popescu, Veronica MercuŢ, Monica Scrieciu, Răzvan MercuŢ, Florin Dan Popescu, Adina Monica Chiriac, Monica Mihaela CrăiŢoiu, Eugen Osiac
Pathological external root resorption is a process by which the hard tooth substance is lost because of action of different local irritative or systemic factors. Six forms of external root resorption are described: surface external root resorption, inflammatory external root resorption, replacement external root resorption, invasive external cervical root resorption, ankylosis and transient apical breakdown. The objective of the study was to establish the prevalence of the pathological root resorption in a retrospective radiological study, to highlight radiological aspects of external root resorption and to describe optical coherence tomography (OCT) aspects in pathological root resorption...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28522371/c1-lateral-mass-screw-insertion-from-the-caudal-dorsal-to-the-cranial-ventral-direction-as-an-alternate-method-for-c1-fixation-a-quantitative-anatomical-and-morphometric-evaluation
#3
Mehmet Senoglu, Ali Karadag, Burak Kinali, Baran Bozkurt, Cigdem Icke, Duygu Halacoglu Savran, Erik H Middlebrooks
OBJECT: C1 lateral mass screw has been widely used for fixation of the upper cervical spine. However, traditional fixation methods are not without complication. Morphometric measurement of an alternative approach is conducted. METHODS: Three-dimensional CT scans of the cervical spine obtained in 100 adults were evaluated, and key measurements were determined for screw entry points, trajectories, and screw lengths for placement of a C1 screw via this alternate approach...
May 15, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28522186/molar-incisor-malformation-in-six-cases-description-and-diagnostic-protocol
#4
Ingvild Johnsen Brusevold, Thea Martine Granvoll Bie, Christine Sophie Baumgartner, Runa Das, Ivar Espelid
OBJECTIVE: The term molar-incisor malformation (MIM) has recently been presented in the scientific literature, where it is described as a condition with localized impaired root development. Here we present 6 recently discovered cases referred to our departments. STUDY DESIGN: The patients were enrolled in the study after referral and were examined clinically and radiologically. Two extracted teeth were further examined with micro-computed tomography or microscopy...
April 4, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28518122/dorsal-root-ganglion-injection-and-dorsal-root-crush-injury-as-a-model-for-sensory-axon-regeneration
#5
Menghon Cheah, James W Fawcett, Melissa R Andrews
Achieving axon regeneration after nervous system injury is a challenging task. As different parts of the central nervous system (CNS) differ from each other anatomically, it is important to identify an appropriate model to use for the study of axon regeneration. By using a suitable model, we can formulate a specific treatment based on the severity of injury, the neuronal cell type of interest, and the desired spinal tract for assessing regeneration. Within the sensory pathway, DRG neurons are responsible for relaying sensory information from the periphery to the CNS...
May 3, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28517492/practical-considerations-of-linear-accelerator-based-frameless-extracranial-radiosurgery-for-treatment-of-occipital-neuralgia-for-nonsurgical-candidates
#6
Travis R Denton, Lisa B E Shields, Jonathan N Howe, Todd S Shanks, Aaron C Spalding
Occipital neuralgia generally responds to medical or invasive procedures. Repeated invasive procedures generate increasing complications and are often contraindicated. Stereotactic radiosurgery (SRS) has not been reported as a treatment option largely due to the extracranial nature of the target as opposed to the similar, more established trigeminal neuralgia. A dedicated phantom study was conducted to determine the optimum imaging studies, fusion matrices, and treatment planning parameters to target the C2 dorsal root ganglion which forms the occipital nerve...
May 18, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28511504/prevalence-of-distal-caries-in-mandibular-second-molar-due-to-impacted-third-molar
#7
Kamran Bokhari Syed, Fatima Saeed Alshahrani, Wejdan Saad Alabsi, Zainab Ali Alqahtani, Mohammad Shahul Hameed, Abdel Bagi Mustafa, Tanveer Alam
INTRODUCTION: A tooth is said to be impacted if it does not reach the occlusal plane even after two-thirds root formation. The aetiology of impacted teeth is varied and multi-factorial. Significant problems associated with impacted teeth include trismus, infection, cervical caries of second molars. AIM: This study was aimed to assess the prevalence of distal caries in second molar teeth due to impacted third molars and to compare with similar studies conducted elsewhere...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28508239/double-crush-syndrome-caused-by-cervical-spondylosis-and-vertebral-artery-loop
#8
Young Joon Rho, Woo Jin Choe
PURPOSE: The purpose of this article is to report a successful treatment experience in a rare case of simultaneous cervical nerve root compression by spondylotic cervical foraminal stenosis and a vertebral artery loop. METHODS: 51-year-old man presented with a 4-year history of left-sided cervical pain radiating to the left shoulder with progressive exacerbation of weakness on left shoulder girdle muscles for 7 months. The patient had no history of trauma. The patient's CT and MRI revealed impingement of the left C6 cervical nerve root by a tortuous vertebral artery loop and also by narrowed left C5-6 cervical foramen that had undergone spondylotic changes...
May 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28508100/cervical-radiculopathy-combined-with-cervical-myelopathy-prevalence-and-characteristics
#9
Byung-Wan Choi, Sung-Soo Kim, Dong-Hyun Lee, Ji-Wan Kim
Patients with cervical myelopathy may experience symptoms of radiculopathy, and it is not easy to determine whether these symptoms are caused by the myelopathy itself or by a radiculopathy accompanied by root compression. Therefore, we aimed to investigate the prevalence of radiculopathy combined with cervical myelopathy and to evaluate the characteristics of cervical myelopathy with or without radiculopathy. We enrolled 127 patients with cervical myelopathy in this retrospective study and reviewed their medical records and magnetic resonance imaging findings...
May 15, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28506346/-role-of-short-latency-somatosensory-evoked-potential-in-the-diagnosis-of-chronic-inflammatory-demyelinating-polyneuropathy
#10
Rui-Di Sun, Bing Fu, Jun Jiang
OBJECTIVE: To investigate the role of short-latency somatosensory evoked potential (SSEP) in the diagnosis of chronic inflammatory demyelinating polyneuropathy (CIDP). METHODS: A total of 48 children with a confirmed or suspected CIDP and 40 healthy children were enrolled. Nerve electrophysiological examination and/or SSEP examination was performed (the children in the healthy control group only underwent SSEP examination). Four-lead electromyography was used for nerve electrophysiological examination, including at least 4 motor nerves and 2 sensory nerves...
May 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28506157/motor-and-sensory-cortical-changes-after-contralateral-cervical-seventh-nerve-root-cc7-transfer-in-patients-with-brachial-plexus-injuries
#11
Ryosuke Kakinoki, Scott F M Duncan, Ryosuke Ikeguchi, Souichi Ohta, Manabu Nankaku, Hiroshi Sakai, Takashi Noguchi, Yukitoshi Kaizawa, Masao Akagi
BACKGROUND: Previous animal studies demonstrated that the sensory and motor functions in ipsilesional upper limbs that had been reconstructed by CC7 transfer eventually associated with the contralesional brain cortices that had originally mediated the functions of the ipsilesional upper limbs before brachial plexus injury (BPI). Our hypothesis was that the same findings would be seen in humans. METHODS: Four patients with total BPI treated with CC7 transfer were included...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28502567/myelopathy-secondary-to-a-spinal-cord-compression-induced-by-c2-nerve-tumors-during-head-rotation
#12
P Finet, C Raftopoulos
INTRODUCTION: It is well known that nerve root tumors developing in the spinal canal can be responsible for spinal cord compression leading to myelopathy and neurological deficits. We report the case of a patient with bilateral C2 neurofibromas presenting with a myelopathy of the upper cervical spine with no spinal cord compression on standard magnetic resonance imaging. The spinal cord compression occurred between the cervical neurofibromas only during head rotation. CASE REPORT: A patient with bilateral neurofibromas of the C2 nerve roots showed a progressive neurological deterioration with an intramedullary MRI hypersignal without visible compression...
May 11, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28496230/invasive-cervical-resorption-and-the-oro-facial-cleft-patient-a-review-and-case-series
#13
A O'Mahony, C McNamara, A Ireland, J Sandy, J Puryer
Introduction Invasive cervical resorption (ICR) has an unknown aetiology, yet it exhibits very aggressive behaviour compared with typical external root resorption, posing a high risk of tooth loss.Aim To investigate the number of patients at the Dublin Cleft Prosthodontic Department with an oro-facial cleft who experienced ICR and to identify any possible aetiological factors.Materials and method A retrospective investigation of all oro-facial cleft patients treated at the Dublin Cleft Prosthodontic Department, St James's Hospital, Dublin...
May 12, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28494130/visualization-of-stereoscopic-anatomic-models-of-the-paranasal-sinuses-and-cervical-vertebrae-from-the-surgical-and-procedural-perspective
#14
Jian Chen, Andrew D Smith, Majid A Khan, Allan R Sinning, Marianne L Conway, Dongmei Cui
Recent improvements in three-dimensional (3D) virtual modeling software allows anatomists to generate high-resolution, visually appealing, colored, anatomical 3D models from computed tomography (CT) images. In this study, high-resolution CT images of a cadaver were used to develop clinically relevant anatomic models including facial skull, nasal cavity, septum, turbinates, paranasal sinuses, optic nerve, pituitary gland, carotid artery, cervical vertebrae, atlanto-axial joint, cervical spinal cord, cervical nerve root, and vertebral artery that can be used to teach clinical trainees (students, residents, and fellows) approaches for trans-sphenoidal pituitary surgery and cervical spine injection procedure...
May 11, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28479302/comprehensive-monosynaptic-rabies-virus-mapping-of-host-connectivity-with-neural-progenitor-grafts-after-spinal-cord-injury
#15
Andrew F Adler, Corinne Lee-Kubli, Hiromi Kumamaru, Ken Kadoya, Mark H Tuszynski
Neural progenitor cells grafted to sites of spinal cord injury have supported electrophysiological and functional recovery in several studies. Mechanisms associated with graft-related improvements in outcome appear dependent on functional synaptic integration of graft and host systems, although the extent and diversity of synaptic integration of grafts with hosts are unknown. Using transgenic mouse spinal neural progenitor cell grafts expressing the TVA and G-protein components of the modified rabies virus system, we initiated monosynaptic tracing strictly from graft neurons placed in sites of cervical spinal cord injury...
May 3, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28475798/the-surgical-management-of-symptomatic-benign-peripheral-nerve-sheath-tumors-of-the-neck-and-extremities-an-experience-of-442-cases
#16
Ketan I Desai
BACKGROUND: The occurrence of benign peripheral nerve sheath tumors (PNSTs) is not uncommon. The surgical excision of symptomatic benign PNSTs along with preservation of the affected nerve and its function is an ideal treatment option. OBJECTIVE: To analyze the outcome with respect to morbidity, extent of resection, and recurrence, and to review and compare our results with those reported in literature. METHODS: A retrospective review of clinical and radiological findings of 442 patients with benign PNSTs involving the neck and extremities treated surgically from 2000 to 2014 was performed...
May 5, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28471987/pulled-out-locking-screw-re-screwed-spontaneously-in-anterior-cervical-decompression-and-fusion-with-the-zero-profile-implant-system-a-case-report
#17
Yi Yang, Lingli Li, Litai Ma, Junfeng Zeng, Tingkui Wu, Hao Liu
RATIONALE: The zero-profile, standalone device (Zero-P, Synthes GmbH, Switzerland) has been reported to be an effective and safe treatment method with similar clinical outcomes compared with plate. Instrumental complications concerning Zero-P have been little reported. Considering the rarity, we present this amazing case to share with our spinal surgeons and instrument specialists. PATIENT CONCERNS: A 46-year-old man patient presented to our hospital with neck and shoulders pain for 23 years, numbness and weak-ness of right hand for 6 months...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28462180/prevalence-of-dentinogenesis-imperfecta-in-a-french-population
#18
Antoine Cassia, Georges Aoun, Abbass El-Outa, Gérard Pasquet, Robert Cavézian
BACKGROUND: Dentinogenesis imperfecta is a genetic disorder of the dentin occurring during the tooth development. It leads to many structural changes that can be identified clinically (brownish colored teeth, cracked enamel) and radiologically (globular crown, cervical constriction, short roots, and obliterated pulp chamber and/or root canals). The aim of this study was to determine by panoramic radiographs assessment the incidence of dentinogenesis imperfecta in a group of patients attending a specialized maxillofacial imaging center in Paris, France...
March 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28461044/influence-of-laser-irradiation-on-the-push-out-bond-strength-between-a-glass-fiber-post-and-root-dentin
#19
Karla G F Gomes, Natália S Faria, Walter R Neto, Vivian Colucci, Erica A Gomes
STATEMENT OF PROBLEM: A major issue related to the failure of endodontically treated teeth restored with an intraradicular post is gradual debonding of the glass fiber post, resin cement, and dentin. PURPOSE: The purpose of this in vitro study was to evaluate the influence of laser irradiation on the push-out bond strength of glass fiber posts to radicular dentin. MATERIAL AND METHODS: Thirty-two mandibular bovine incisors were endodontically treated and divided into 4 groups according to the surface treatment of the post: silane control (GC); irradiation with Er:YAG (GYAG); irradiation with Er,Cr:YSGG (GCR); and 980-nm diode laser (GDI) application...
April 28, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28457637/preexisting-dentinal-microcracks-in-nonendodontically-treated-teeth-an-ex%C3%A2-vivo-micro-computed-tomographic-analysis
#20
Angambakkam Rajasekaran PradeepKumar, Hagay Shemesh, Jeffrey Wen-Wei Chang, Ahendita Bhowmik, Swamy Sibi, Velayutham Gopikrishna, Lakshmikanthanbharathi Lakshmi-Narayanan, Anil Kishen
INTRODUCTION: This study evaluated the prevalence, location, and pattern of preexisting dentinal microcracks in roots of extracted teeth without endodontic treatment in patients from 2 age groups using micro-computed tomographic imaging. METHODS: Six hundred thirty-three nonendodontically treated teeth extracted using an atraumatic procedure because of reasons unrelated to this study were collected and divided based on the patient age. Teeth were scanned with micro-computed tomographic imaging (resolution of 26...
April 27, 2017: Journal of Endodontics
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