65,391 results match your criteria Facial Bone Anatomy


A Combined Extradural-Intradural Technique for an En-Bloc Anterior Petrosectomy: A Cadaveric Feasibility Study.

World Neurosurg 2019 Jan 9. Epub 2019 Jan 9.

Skull Base and Cerebrovascular Laboratory, University of California, San Francisco, California, USA; Department of Neurological Surgery, University of California, San Francisco, California, USA; Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, California, USA. Electronic address: http://skullbaselab.ucsf.edu.

Introduction: The anterior petrosectomy approach is among the most popular for exposure of the petroclival region. However, the complexity of the anatomy, drilling time, and risk of injury to neurovascular structures make this procedure especially challenging.

Objective: Our study proposes a novel combined extradural-intradural technique for an en-bloc anterior petrosectomy-or one-piece Kawase(OPK)-while also charting the landmarks that define its surgical boundaries. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.12.089DOI Listing
January 2019

Morphological analysis of sigmoid sinus anatomy: clinical applications to neurotological surgery.

J Otolaryngol Head Neck Surg 2019 Jan 11;48(1). Epub 2019 Jan 11.

Department of Otolaryngology - Head and Neck Surgery, Western University, London, Ontario, N6A 5C1, Canada.

Objectives: The primary objective of this study was to use high-resolution micro-CT images to create accurate three-dimensional (3D) models of several intratemporal structures, and to compare several surgically important dimensions within the temporal bone. The secondary objective was to create a statistical shape model (SSM) of a dominant and non-dominant sigmoid sinus (SS) to provide a template for automated segmentation algorithms.

Methods: A free image processing software, 3D Slicer, was utilized to create three-dimensional reconstructions of the SS, jugular bulb (JB), facial nerve (FN), and external auditory canal (EAC) from micro-CT scans. Read More

View Article

Download full-text PDF

Source
https://journalotohns.biomedcentral.com/articles/10.1186/s40
Publisher Site
http://dx.doi.org/10.1186/s40463-019-0324-0DOI Listing
January 2019
4 Reads

Evaluation of 3D Printed Temporal Bone Models in Preparation for Middle Cranial Fossa Surgery.

Otol Neurotol 2019 Feb;40(2):246-253

Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.

Hypothesis: Patient-specific 3D printed models are useful presurgical planning tools because they accurately represent the anatomy and drilling characteristics of the middle cranial fossa (MCF) approach to the internal auditory canal (IAC).

Background: The MCF approach to the IAC can be challenging due to variability of the bony architecture along the floor of the middle fossa. Patient-specific 3D printed models may enhance surgeon knowledge of a given patient's anatomy when preparing for MCF surgery. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/MAO.0000000000002073DOI Listing
February 2019
1 Read

Understanding anatomy of the petrous pyramid - a new compartmental approach.

World Neurosurg 2019 Jan 5. Epub 2019 Jan 5.

Department of Anatomy, University of Lyon 1, 8 Avenue Rockefeller, 69003 Lyon - France; Skull Base Multi-disciplinary Unit, Department of Neurosurgery B, Neurological Hospital Pierre Wertheimer, Hospices Civils de Lyon, 59 Bd Pinel, 69677 Lyon Cedex - France.

Background: Surgical anatomy of the petrous pyramid has always been a challenge, especially in the beginning of the training process. Providing an easier, holistic approach can be of help to everyone with interest in learning and teaching skull base anatomy. We present the complex organization of the petrous pyramid anatomy using a new compartmental approach that is simple to understand and remember. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.11.234DOI Listing
January 2019

Analysis of Cause of Endodontic Failure of C-Shaped Root Canals.

Scanning 2018 25;2018:2516832. Epub 2018 Nov 25.

Department of Conservative Dentistry, Seoul St. Mary's Dental Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.

The purpose of this study was to analyze various characteristics and classification of C-shaped root canals and evaluate the causes of endodontic failure of C-shaped root canals by examining the resected root surface with an endodontic microscope and a scanning electron microscope (SEM). Forty-two teeth with C-shaped root canals were included in this study and had undergone intentional replantation surgery. Before surgery, periapical radiography and cone-beam computed tomography were taken. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1155/2018/2516832DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6286757PMC
January 2019
1 Read

Osteoid Osteoma of the Mandible - Clinical and Histological Findings.

Anticancer Res 2019 Jan;39(1):291-296

Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Background/aim: Osteoid osteoma (OO) is a benign tumor characterized by the excessive formation of unmineralized bone matrix. It is mostly located in the long bones of the lower extremities or the spine, but can also occur in atypical locations.

Patients And Methods: Here we report on a rare case of OO in the mandible in an 18-year-old male patient with a simultaneous finding of a pilomatrixoma in the parietal region. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.21873/anticanres.13110DOI Listing
January 2019

Influence of the hyrax expander screw position on stress distribution in the maxilla: A study with finite elements.

Am J Orthod Dentofacial Orthop 2019 Jan;155(1):80-87

Department of Orthodontics, Juiz de Fora Federal University, Juiz de Fora, Minas Gerais, Brazil.

Introduction: Our objective was to evaluate the stress and deformation distribution patterns on the maxillary bone structure using the finite element method by simulation of different vertical and anteroposterior positions of the expansion screw on the hyrax expander appliance.

Methods: Part of the maxilla with anchorage teeth, midpalatal suture, and the hyrax appliance were modeled, and 6 distinct finite element method models were created to simulate different positions of the expansion screw. There were 2 vertical positions at distances of 20 and 15 mm from the occlusal plane. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ajodo.2018.03.019DOI Listing
January 2019
1 Read

Lip position analysis of young women with different skeletal patterns during posed smiling using 3-dimensional stereophotogrammetry.

Am J Orthod Dentofacial Orthop 2019 Jan;155(1):64-70

Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, China. Electronic address:

Introduction: The aim of this study was to explore the internal relationship between posed smile characteristics, lip position, and skeletal patterns in young women.

Methods: Fifty women between the ages of 20 and 30 years were enrolled and divided into 3 groups-vertical, average, and horizontal patterns- using the following parameters: FMA, GoGn-SN, and Jarabak ratio. Each subject was scanned in natural head position and with a posed smile. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ajodo.2018.03.014DOI Listing
January 2019

Effectiveness of incremental vs maximum bite advancement during Herbst appliance therapy in late adolescent and young adult patients.

Am J Orthod Dentofacial Orthop 2019 Jan;155(1):48-56

Department of Orthodontics, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey.

Introduction: The purpose of this research was to compare the effects of Herbst appliance therapy using incremental vs maximum advancement in late adolescent and young adult patients with Class II skeletal malocclusion.

Methods: Forty-two patients with skeletal Class II malocclusion were treated with cast-splint Herbst appliances. The subjects were randomly allocated into 2 groups according to activation type: incremental advancement (IA) and maximum advancement (MA). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ajodo.2018.02.014DOI Listing
January 2019

Activity and morphologic changes in the mandible after mandibular osteotomy.

Am J Orthod Dentofacial Orthop 2019 Jan;155(1):40-47

Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Tongji University, Shanghai, China; Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China. Electronic address:

Introduction: Orthognathic surgery accelerates orthodontic tooth movement, and tooth movement accelerates with demineralized bone and accelerated bone remodeling. The purpose of this study was to ascertain whether orthognathic surgery induces accelerated bone remodeling. The research design included a human model and an animal model. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ajodo.2018.02.016DOI Listing
January 2019

Anterior open bite correction with 2-jaw orthognathic surgery.

Am J Orthod Dentofacial Orthop 2019 Jan;155(1):108-116.e2

Postgraduate Orthodontic Program, Arizona School of Dentistry & Oral Health, A. T. Still University, Mesa, Ariz.

A 26-year-old man with an anterior open bite was treated with orthodontics combined with 2-jaw surgery. Total treatment time was 19 months. Both his occlusion and facial appearance were significantly improved by the surgical-orthodontic treatment. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S08895406183074
Publisher Site
http://dx.doi.org/10.1016/j.ajodo.2017.07.027DOI Listing
January 2019
3 Reads

The Functional Anatomy of the Deep Facial Fat Compartments: A Detailed Imaging-Based Investigation.

Plast Reconstr Surg 2019 Jan;143(1):53-63

Albany and New York, N.Y.; Sacramento, Calif.; Munich, Germany; Zurich, Switzerland; and Salzburg, Austria From the Department of Medical Education, Albany Medical College; private practice; Facial Plastic and Reconstructive Surgery, University of California, Davis Medical Center; the Department for Hand, Plastic and Aesthetic Surgery, Ludwig Maximilian University; the Division of Thoracic Surgery, University Hospital Zurich; and the Department of Radiology, Paracelsus Medical University Salzburg & Nuremberg.

Background: Injection of soft-tissue fillers into the facial fat compartments is frequently performed to ameliorate the signs of facial aging. This study was designed to investigate the functional anatomy of the deep facial fat compartments and to provide information on the effects of injected material in relation to age and gender differences.

Methods: Forty fresh frozen cephalic specimens of 17 male and 23 female Caucasian body donors (mean age, 76. Read More

View Article

Download full-text PDF

Source
http://Insights.ovid.com/crossref?an=00006534-201901000-0001
Publisher Site
http://dx.doi.org/10.1097/PRS.0000000000005080DOI Listing
January 2019
11 Reads

Case 39-2018: An 18-Year-Old Man with Diplopia and Proptosis of the Left Eye.

N Engl J Med 2018 12;379(25):2452-2461

From the Departments of Ophthalmology (D.R.L., M.K.Y.) and Radiology (K.L.R.), Massachusetts Eye and Ear, the Departments of Medicine (J.H.S.) and Pathology (A.M.S.), Massachusetts General Hospital, and the Departments of Ophthalmology (D.R.L., M.K.Y.), Radiology (K.L.R.), Medicine (J.H.S.), and Pathology (A.M.S.), Harvard Medical School - all in Boston.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1056/NEJMcpc1807503DOI Listing
December 2018

Facial paralysis as a presenting symptom of infant leukemia: A case report and literature review.

Medicine (Baltimore) 2018 Dec;97(51):e13673

Department of Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.

Rationale: Facial paralysis as the initial clinical presentation of infant leukemia (IL) is rare, and the rate of its misdiagnosis is high. Identifying the clinical characteristics of IL with facial paralysis as the initial symptom is necessary to improve the understanding of the causes of facial paralysis and IL.

Patient Concerns: A 10-month-old infant had facial paralysis and recurrent fever. Read More

View Article

Download full-text PDF

Source
http://Insights.ovid.com/crossref?an=00005792-201812210-0006
Publisher Site
http://dx.doi.org/10.1097/MD.0000000000013673DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6320160PMC
December 2018
2 Reads

Cenani-Lenz syndrome and other related syndactyly disorders due to variants in LRP4, GREM1/FMN1, and APC: Insight into the pathogenesis and the relationship to polyposis through the WNT and BMP antagonistic pathways.

Am J Med Genet A 2018 Dec 20. Epub 2018 Dec 20.

Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.

Cenani-Lenz (C-L) syndrome is characterized by oligosyndactyly, metacarpal synostosis, phalangeal disorganization, and other variable facial and systemic features. Most cases are caused by homozygous and compound heterozygous missense and splice mutations of the LRP4 gene. Currently, the syndrome carries one OMIM number (212780). Read More

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1002/ajmg.a.60694
Publisher Site
http://dx.doi.org/10.1002/ajmg.a.60694DOI Listing
December 2018
4 Reads

Three-dimensional imaging of the human internal acoustic canal and arachnoid cistern: a synchrotron study with clinical implications.

J Anat 2018 Dec 18. Epub 2018 Dec 18.

Department of Surgical Sciences, Section of Otolaryngology, Uppsala University Hospital, Uppsala, Sweden.

A thorough knowledge of the gross and micro-anatomy of the human internal acoustic canal (IAC) is essential in vestibular schwannoma removal, cochlear implantation (CI) surgery, vestibular nerve section, and decompression procedures. Here, we analyzed the acoustic-facial cistern of the human IAC, including nerves and anastomoses using synchrotron phase contrast imaging (SR-PCI). A total of 26 fresh human temporal bones underwent SR-PCI. Read More

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1111/joa.12926
Publisher Site
http://dx.doi.org/10.1111/joa.12926DOI Listing
December 2018
3 Reads

Diagnosis and treatment of the pharyngeal glial choristoma accompanied with incomplete cleft palate: A case report.

Medicine (Baltimore) 2018 Dec;97(50):e13506

Department of Otorhinolaryngology and Head & Neck Surgery, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China.

Introduction: A choristoma formed by heterotopic tissue rarely occurs in the throat, especially one accompanied with cleft palate in a new-born baby.

Patient Concerns: An 18-month-old female patient was admitted to the hospital for apparent snoring symptoms accompanied by mouth breathing and sleep apnea. In addition, the patient presented with weak aspiration and nasal leakage during fluid intake. Read More

View Article

Download full-text PDF

Source
http://Insights.ovid.com/crossref?an=00005792-201812140-0004
Publisher Site
http://dx.doi.org/10.1097/MD.0000000000013506DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6320170PMC
December 2018
5 Reads

Morphometric properties of the facial nerve in fetal temporal bones.

Int J Pediatr Otorhinolaryngol 2019 Jan 10;116:7-14. Epub 2018 Oct 10.

Mersin University Faculty of Medicine, Department of Neurosurgery, Mersin, Turkey.

Objectives: The main aim of the study was to examine the development and course of the facial nerve within fetal temporal bones from an anatomical and neuro-otological perspective.

Methods: The study was conducted on 32 temporal bones from obtained fetuses (7 females, 9 male), on a mean gestational age of 26.75 ± 4. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S01655876183051
Publisher Site
http://dx.doi.org/10.1016/j.ijporl.2018.10.012DOI Listing
January 2019
1 Read

Virtual reconstruction of paranasal sinuses from CT data: A feasibility study for forensic application.

Diagn Interv Imaging 2018 Dec 12. Epub 2018 Dec 12.

LiiE, EA 4264, CERIMED, Aix-Marseille University, 13005 Marseille, France.

Purpose: The purpose of this study was to report the feasibility of computed modelization and reconstitution of the paranasal sinuses, before and after trauma, from CT data.

Materials And Methods: We modeled and reconstructed the paranasal sinuses of two patients (A and B), before and after trauma, using two different softwares (3DSlicer and Blender). Both patients had different numbers and locations of fractures. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.diii.2018.11.011DOI Listing
December 2018

Perforation of small intestine secondary to metastatic lung adenocarcinoma: A case report.

Medicine (Baltimore) 2018 Dec;97(49):e13469

Department of Emergency Surgery, Union Hospital.

Rationale: About 50% of patients with a diagnosis of nonsmall cell lung carcinoma exhibit metastatic disease at the time of diagnosis. The preferential sites of extrapulmonary spread are the lymph nodes, liver, brain, adrenal glands, and bones; gastrointestinal tract perforation secondary to metastatic lung cancer is extremely rare.

Patient Concerns: A 60-year-old male nonsmoker patient presented with a 20-day history of facial, neck, and right upper limb edema. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/MD.0000000000013469DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6310494PMC
December 2018

Mixed (nodular and morpheic) upper eyelid basal cell carcinoma with orbital invasion - histological and clinical features.

Rom J Morphol Embryol 2018 ;59(3):977-983

Department of Plastic Surgery, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Romania;

Basal cell carcinoma (BCC) is the most common type of cancer located in the periocular area. We will present the clinical case of a 63-year-old male patient who was admitted to the 2nd Clinic of Neurosurgery, "Prof. Dr. Read More

View Article

Download full-text PDF

Source
January 2019
2 Reads

Morphological changes of gums in occlusal trauma.

Rom J Morphol Embryol 2018 ;59(3):787-802

Department of Occlusology and Fixed Prosthetics, University of Medicine and Pharmacy of Craiova, Romania;

Aim: Occlusal trauma causes major modifications of the coverage periodontium, which in turn reflect on the dental unit. The aim of the present study is to evaluate some of the morphological modifications occurred in the marginal periodontium surrounding teeth affected by occlusal trauma.

Materials And Methods: Fragments of marginal periodontium coming from 51 patients with occlusal trauma were processed using classical histological techniques (formalin fixation and paraffin embedment) and stained with Hematoxylin-Eosin (HE), Masson's trichrome and anti-CD34 antibody immunostaining, in order to highlight the epithelial and connective tissue changes of gingival mucosa. Read More

View Article

Download full-text PDF

Source
December 2018
2 Reads

Quantitative assessment of morphological changes of dental pulp components of teeth affected by occlusal trauma.

Rom J Morphol Embryol 2018 ;59(3):729-740

Department of Occlusology and Fixed Prosthetics, University of Medicine and Pharmacy of Craiova, Romania;

Aim: In the general economy of the stomatognathic system functionality, the occlusal function has an important role, meaning both the dental-dental reports and the dynamic reports interarch-interarch. Because of the interrelationships and inter-dependency that govern the functioning of the biological systems, a pathological change affecting a component of the stomatognathic system produces impaired functioning of the others. The aim of the present study is to assess the morphological changes occurred in the dental pulp components of teeth affected by occlusal trauma. Read More

View Article

Download full-text PDF

Source
December 2018
2 Reads

A Contemporary and Novel Use of Thyroid Cartilage for Structural Grafting in Esthetic Rhinoplasty: A Case Report.

J Oral Maxillofac Surg 2018 Nov 2. Epub 2018 Nov 2.

American Academy of Cosmetic Surgery Fellowship Director, Cosmetic Surgery Affiliates, Oklahoma City, OK.

This case report details a 21-year-old transgender female patient who underwent a concomitant trichophytic brow lift with frontal bone reduction, tracheal shave (also known as thyroid chondroplasty), and rhinoplasty for facial feminization in conjunction with her transitioning process. During rhinoplasty, harvesting cartilage for structural grafting is often necessary, and this is typically done from a distant, unrelated surgical site. During this case, cartilage from the thyroid lamina was utilized in the form of a columellar strut graft. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.joms.2018.10.019DOI Listing
November 2018

In-vitro comparison of different palatal sites for orthodontic miniscrew insertion: Effect of bone quality and quantity on primary stability.

Am J Orthod Dentofacial Orthop 2018 Dec;154(6):809-819

Division of Graduate Orthodontics, Western University, London, Ontario, Canada. Electronic address:

Introduction: This experiment was undertaken to assess the primary stability of orthodontic miniscrews inserted at different sites in human cadaveric palatal bone for temporary skeletal anchorage, and to determine the effect of bone quality and quantity on their primary stability using microcomputed tomography imaging.

Methods: A total of 10 cadaveric maxillary hard palates were used for insertion of 130 orthodontic miniscrews (VectorTAS; Ormco, Orange, Calif; length, 6 mm; diameter, 1.4 mm). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ajodo.2018.02.010DOI Listing
December 2018

Endoscopic evaluation of middle ear anatomic variations in autopsy series: analyses of 204 ears.

Braz J Otorhinolaryngol 2018 Nov 3. Epub 2018 Nov 3.

University of Istanbul, Istanbul Medical Faculty, Department of Otorhinolaryngology - Head and Neck Surgery, Istanbul, Turkey.

Introduction: Microsurgery of the ear requires complete evaluation of middle ear surgical anatomy, especially the posterior tympanic cavity anatomy. Preoperative assessment of the middle ear cavity is limited by the permeability of eardrum and temporal bone density. Therefore, middle ear exploration is an extremely useful method to identify structural abnormalities and anatomical variations. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18088694183038
Publisher Site
http://dx.doi.org/10.1016/j.bjorl.2018.10.002DOI Listing
November 2018
7 Reads

Analysis Of Palatal Rugae Pattern In Population Of Abbottabad: A Forensic Study.

J Ayub Med Coll Abbottabad 2018 Jul-Sep;30(3):428-431

Department of Forensic Medicine, Ayub Medical College, Abbottabad, Pakistan.

Background: Identification of unknown dead bodies' especially bony remains is done by different methods like DNA typing, Finger printing, Dental and other skeletal data, facial reconstruction and rugae pattern study. Palatal rugae pattern study or Ruguscopy gives a unique method of identification in cases of skeletal remains due to its uniqueness, resistance to heat, and stability throughout life.

Methods: This simple random sampling was carried out on 102 study models (casts of palate) of patients having 880 rugae patterns above 20 years of age in Khan Dental Clinic near Ayub Medical College, Abbottabad. Read More

View Article

Download full-text PDF

Source
January 2019
7 Reads

Reliability and validity of maxillary and sphenoid Sinus morphological variations in the assessment of Skeletal maturity.

J Ayub Med Coll Abbottabad 2018 Jul-Sep;30(3):360-365

Section of Dentistry, Department of Surgery, The Aga Khan University Hospital, Karachi, Pakistan.

Background: The present study aimed at assessing the relationship between growth changes in maxillary (MS) and sphenoid sinus (SS) and cervical vertebral maturation (CVM) and to evaluate their reliability and validity in assessing the skeletal maturity of an individual.

Methods: A crosssectional study was conducted on the pretreatment lateral cephalograms of 224 patients (males=116, females=108) aged 8-17 years. MS and SS heights, widths and indices were evaluated. Read More

View Article

Download full-text PDF

Source
January 2019
6 Reads

Direct 3D Printing of Flexible Nasal Prosthesis: Optimized Digital Workflow from Scan to Fit.

J Prosthodont 2018 Nov 20. Epub 2018 Nov 20.

Department of Allied Dental Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan.

A maxillofacial prosthesis is a successful treatment modality to restore missing facial parts. Digital technologies and 3D printing are employed in constructing facial prostheses such as ears; however, their application is still partial, and final prostheses are usually manufactured conventionally using stone molds. This report aims to introduce a complete digital workflow to construct a nasal prosthesis and compare it to the conventional workflow of a patient requiring a nasal prosthesis. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/jopr.13001DOI Listing
November 2018
8 Reads

A man with facial disfigurement.

Pan Afr Med J 2018;30:196. Epub 2018 Jul 5.

Excellence Center in Diabetes, Hormones and Metabolism, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11604/pamj.2018.30.196.16299DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6235515PMC
December 2018
1 Read

Craniofacial skeleton of MEXICAN tetra (Astyanax mexicanus): As a bone disease model.

Dev Dyn 2018 Nov 19. Epub 2018 Nov 19.

Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.

A small fresh water fish, the Mexican tetra (Astyanax mexicanus) is a novel animal model in evolutionary developmental biology. The existence of morphologically distinct surface and cave morphs of this species allows simultaneous comparative analysis of phenotypic changes at different life stages. The cavefish harbors many favorable constructive traits (i. Read More

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1002/dvdy.4
Publisher Site
http://dx.doi.org/10.1002/dvdy.4DOI Listing
November 2018
7 Reads

Assessment of Middle Ear Anatomy Teaching Methodologies Using Microscopy versus Endoscopy: A Randomized Comparative Study.

Anat Sci Educ 2018 Nov 14. Epub 2018 Nov 14.

Department of Otorhinolaryngology, Head and Neck Surgery, Inselspital, University Hospital and University of Bern, Bern, Switzerland.

Teaching methodologies for the anatomy of the middle ear have not been investigated greatly due to the middle ear's highly complex structure and hidden location inside of the temporal bone. The aim of this randomized study was to quantitatively compare the suitability of using microscope- and endoscope-based methods for teaching the anatomy of the middle ear. We hypothesize that the endoscopic approach will be more efficient compared to the microscopic approach. Read More

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1002/ase.1837
Publisher Site
http://dx.doi.org/10.1002/ase.1837DOI Listing
November 2018
5 Reads

Implant Stability Outcomes After Immediate and Delayed Revascularized Free Fibula Flaps: A Preliminary Comparative Study.

Int J Oral Maxillofac Implants 2018 Nov/Dec;33(6):1368-1373

Purpose: This pilot study investigated the retrospective outcomes of implants placed immediately or with a delayed protocol in revascularized free fibula flaps (FFF).

Materials And Methods: Patients undergoing FFF between 2014 and 2017 were included in the study. Implants were inserted either immediately or 23. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11607/jomi.6725DOI Listing
December 2018

Higher Resolution in Cone Beam Computed Tomography Is Accompanied by Improved Bone Detection in Peri-implant Bone Despite Metal Artifact Presence.

Int J Oral Maxillofac Implants 2018 Nov/Dec;33(6):1331-1338

Purpose: The aim of this study was to determine the possibility and extent of artifact reduction by an optimized use of cone beam computed tomography (CBCT) parameter configuration (geometric resolution, implant geometric parameters, and image analyses). It furthermore sought to determine the distance from correctly reproduced bone tissue to an implant, where the grayscale values are equal to the pre-implantation values.

Materials And Methods: Titanium implants were inserted into pig tibia under standardized conditions. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11607/jomi.6623DOI Listing
December 2018
4 Reads

The Nasal Complex of a Semiaquatic Artiodactyl, the Moose (Alces alces): Is it a Good Evolutionary Model for the Ancestors of Cetaceans?

Anat Rec (Hoboken) 2018 Nov 13. Epub 2018 Nov 13.

Departments of Medical Education and Otolaryngology, Icahn School of Medicine at Mount Sinai, Center for Anatomy & Functional Morphology, New York, New York.

Among Cetartiodactyla, cetaceans are the only obligate aquatic dwellers. Given morphological similarities between cetacean relatives such as Indohyus (the best represented Eocene raoellid artiodactyl) with other, later artiodactyls, any crown artiodactyl that engages in aquatic behaviors is of interest as an evolutionary model for the adaptations that accompanied the origins of cetaceans. The American moose (Alces alces) is the only non-cetacean artiodactyl to engage in aquatic foraging and, other than Hippopotamus, is distinctive in its diving behaviors. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/ar.24022DOI Listing
November 2018
1 Read

Mandibular subcondylar fracture accessibility with transparotid approach by rhytidectomy and modified Risdon approach: An anatomical comparative study.

J Craniomaxillofac Surg 2018 Dec 19;46(12):2256-2260. Epub 2018 Oct 19.

University of Lille, Oral and Maxillofacial Department, Roger Salengro Hospital, CHU Lille, INSERM U 1008, Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France. Electronic address:

Purpose: The purpose of our anatomical study was to compare the accessibility of the area at the level of the neck of the condyle and the condylar head by two different approaches: the modified Risdon approach and a transparotid approach by rhytidectomy (TPAR).

Methods: An anatomical study was performed on 12 heads of cadavers preserved with a solution rich in glycerin and ethanol, but very low in formalin. A modified Risdon approach and a TPAR were each performed on a hemiface of the same head. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S10105182183054
Publisher Site
http://dx.doi.org/10.1016/j.jcms.2018.10.011DOI Listing
December 2018
12 Reads

Seromucinous hamartoma of inferior turbinate: A case report.

Medicine (Baltimore) 2018 Nov;97(45):e13022

Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School & Chonnam National University Hwasun Hospital, Hwasun, South Korea.

Rationale: Seromucinous hamartoma is a rare benign glandular proliferation of the sinonasal tract and nasopharynx, and the majority of lesions occur on the posterior nasal septum.

Patient Concerns: The patient had complaints of rhinorrhea, sneezing, and itching for a number of years, and recurrent right nasal bleeding for which the patient underwent endoscopic removal of a right inferior turbinate tumor. The biopsy result was low-grade, non-intestinal type adenocarcinoma, and the patient was referred to our hospital. Read More

View Article

Download full-text PDF

Source
http://Insights.ovid.com/crossref?an=00005792-201811090-0001
Publisher Site
http://dx.doi.org/10.1097/MD.0000000000013022DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6250520PMC
November 2018
13 Reads

Two auricular epithesis surgical cases retained by a custom titanium implant: result at four years.

Authors:
R Ferreira P Vives

J Stomatol Oral Maxillofac Surg 2018 Nov 2. Epub 2018 Nov 2.

Department of Stomatology and Maxillo-Facial surgery, CHU Félix-Guyon, 2, allée des Topazes, 97400 Saint Denis, La Réunion, France.

Introduction: This article aims at describing the four-year outcome of a surgical procedure implanting a patient specific epithesis system in two patients.

Technical Note: After virtual 3D reconstruction of the anatomy and mirroring of the healthy ear, the position of the three Locator attachments were optimized in the software to embed them as accurately as possible in the planned episthesis antihelix. The personalized plate bearing the three Locator implants was then manufactured. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jormas.2018.10.014DOI Listing
November 2018

Anthropometric analysis of mandible: an important step for sex determination.

Clin Ter 2018 Sep-Oct;169(5):e217-e223

Forensic Unit, Department of Pathology, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaakob Latif, Bandar Tun Razak, 56000 Kuala Lumpur, Malaysia.

Introduction: The first step in the forensic identification is sex determination followed by age and stature estimation, as both are sex-dependent. The mandible is the largest, strongest and most durable bone in the face. Mandible is important for sex confirmation in absence of a complete pelvis and skull. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.7417/CT.2018.2082DOI Listing
January 2019
19 Reads

Novel presentation of cranial fasciitis of the mandible: Case report and literature review.

Int J Pediatr Otorhinolaryngol 2018 Dec 14;115:33-37. Epub 2018 Sep 14.

Section of Otolaryngology - Head and Neck Surgery, Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Section of Pediatric Surgery, Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. Electronic address:

Cranial fasciitis (CF) is a rare benign fibroblastic lesion of the scalp, most commonly affecting the pediatric population. The authors conducted a literature review and include a summary of reported cases of CF. CF is most commonly located in the parietal and temporal regions of the skull. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S01655876183046
Publisher Site
http://dx.doi.org/10.1016/j.ijporl.2018.09.011DOI Listing
December 2018
6 Reads

Anterior skull base duplication requiring delivery via EXIT procedure: A case report.

Int J Pediatr Otorhinolaryngol 2018 Dec 14;115:24-26. Epub 2018 Sep 14.

University of Tennessee Health Science Center, Department of Otolaryngology - Head and Neck Surgery, 910 Madison Avenue Suite 430, Memphis, TN, 38163, USA. Electronic address:

Duplication of the anterior skull base structures is an extremely rare malformation of failed midline blastogenesis. We present the case of a child with an obstructive oral cavity mass diagnosed on prenatal imaging. The child was successfully delivered by EXIT procedure, a tracheotomy was performed, and postnatal imaging demonstrated an array of craniofacial malformations, including complete duplication of the maxilla, pituitary glands, aqueducts of Sylvius, and basilar arteries. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S01655876183046
Publisher Site
http://dx.doi.org/10.1016/j.ijporl.2018.09.010DOI Listing
December 2018
7 Reads

Root canal preparation using micro-computed tomography analysis: a literature review.

Braz Oral Res 2018 Oct 18;32(suppl 1):e66. Epub 2018 Oct 18.

Universidade de Ribeirão Preto, Faculty of Dentistry, Ribeirão Preto, SP, Brazil.

This literature review has critically analyzed the published research related to the biomechanical preparation of root canals with three-dimensional analysis using micro-computed tomography (micro-CT). In December 2017, six databases (PubMed, Cochrane, Web of Science, Embase, Scopus, and Science Direct) were accessed using keywords to find articles including the use of the micro-CT analysis in biomechanical root canal preparation. There were 60 full articles that were selected, which were screened and read by two authors. Read More

View Article

Download full-text PDF

Source
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S
Publisher Site
http://dx.doi.org/10.1590/1807-3107bor-2018.vol32.0066DOI Listing
October 2018
11 Reads

The nearshore cradle of early vertebrate diversification.

Science 2018 10;362(6413):460-464

School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, UK.

Ancestral vertebrate habitats are subject to controversy and obscured by limited, often contradictory paleontological data. We assembled fossil vertebrate occurrence and habitat datasets spanning the middle Paleozoic (480 million to 360 million years ago) and found that early vertebrate clades, both jawed and jawless, originated in restricted, shallow intertidal-subtidal environments. Nearshore divergences gave rise to body plans with different dispersal abilities: Robust fishes shifted shoreward, whereas gracile groups moved seaward. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1126/science.aar3689DOI Listing
October 2018

Appreciation of the Vascular Anatomy of Aesthetic Forehead Reflation.

Dermatol Surg 2018 11;44 Suppl 1:S2-S4

Department of Dermatology, Carruthers Dermatology Centre, Vancouver, British Columbia, Canada.

Background: Worldwide, the brow is the most common facial site to receive aesthetic treatment. However, the forehead above the brows has been comparatively less well studied with respect to both neuromodulators and fillers. Age-related remodeling of the forehead with loss of facial bone has been demonstrated on detailed radiographic studies. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/DSS.0000000000001688DOI Listing
November 2018
2 Reads

BONE GRAFTS FOR RECONSTRUCTION OF BONE DEFECTS (REVIEW).

Georgian Med News 2018 Sep(282):44-49

Tbilisi State Medical University, Georgia; Lviv National Medical University.

Reconstruction of large size defects of bone is a challenging task. To this date, discussions and controversies on selection of auto-, allo-, xeno- or synthetic grafts continue to take place. Vascularized autologous bone graft is considered as gold standard in reconstruction of large size defects of bone; however an additional surgery is required for obtaining it. Read More

View Article

Download full-text PDF

Source
September 2018
7 Reads

New Paratethyan dwarf baleen whales mark the origin of cetotheres.

Authors:
Pavel Gol'din

PeerJ 2018 15;6:e5800. Epub 2018 Oct 15.

Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine.

Background: Family Cetotheriidae and several closely related taxa comprise the Cetotherioidea and represent a lineage of Neogene baleen whales that includes the smallest edentulous baleen whales in Earth history. Most of known cetotheriids came from the Late Miocene to Quaternary, and the earliest records from the latest Middle Miocene. The Paratethys region shows a great diversity of Middle to Late Miocene cetotheriids. Read More

View Article

Download full-text PDF

Source
https://peerj.com/articles/5800
Publisher Site
http://dx.doi.org/10.7717/peerj.5800DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6193469PMC
October 2018
14 Reads

Histological and immunohistochemical evaluation of mandibular bone tissue regeneration.

Int J Immunopathol Pharmacol 2018 Jan-Dec;32:2058738418798249

2 Department of Histology, Cytology and Embryology, Nicolae Testemiţanu State University of Medicine and Pharmacy, Chișinău, Republic of Moldova.

The purpose of the study was to perform an immunohistochemical and histological evaluation of samples taken from different bone regeneration procedures in atrophic human mandible. 30 patients (15 men and 15 women, age range of 35-60 years), non-smokers, with good general and oral health were recruited in this study and divided into three groups. The first group included patients who were treated with blood Concentration Growth Factors (bCGF), the second group included patients who were treated with a mixture of bCGF and autologous bone, while the third group of patients was treated with bCGF and tricalcium phosphate/hydroxyapatite (TCP-HA). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/2058738418798249DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6201177PMC
December 2018