Characteristics of Some Anatomical Landmarks on the Anterior Face of the Maxilla
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Palatal Injection Does Not Block the Superior Alveolar Nerve Trunks: Correcting an Error Regarding the Innervation of the Maxillary Teeth
Open Access Review Article DOI: 10.7759/cureus.2120 Palatal Injection does not Block the Superior Alveolar Nerve Trunks: Correcting an Error Regarding the Innervation of the Maxillary Teeth Joe Iwanaga 1 , R. Shane Tubbs 2 1. Seattle Science Foundation 2. Neurosurgery, Seattle Science Foundation Corresponding author: Joe Iwanaga, [email protected] Abstract The superior alveolar nerves course lateral to the maxillary sinus and the greater palatine nerve travels through the hard palate. This difficult three-dimensional anatomy has led some dentists and oral surgeons to a critical misunderstanding in developing the anterior and middle superior alveolar (AMSA) nerve block and the palatal approach anterior superior alveolar (P-ASA) nerve block. In this review, the anatomy of the posterior, middle and anterior superior alveolar nerves, greater palatine nerve, and nasopalatine nerve are revisited in order to clarify the anatomy of these blocks so that the perpetuated anatomical misunderstanding is rectified. We conclude that the AMSA and P-ASA nerve blockades, as currently described, are not based on accurate anatomy. Categories: Anesthesiology, Medical Education, Other Keywords: anatomy, innervation, local anesthesia, maxillary nerve, nerve block, tooth Introduction And Background Anesthetic blockade of the posterior superior alveolar (PSA) branch of the maxillary nerve has played an important role in the endodontic treatment of irreversible acute pulpitis of the upper molar teeth except for the mesiobuccal root of the first molar tooth [1, 2]. This procedure requires precise anatomical knowledge of the pterygopalatine fossa and related structures in order to avoid unnecessary complications and to make the blockade most effective. The infraorbital nerve gives rise to middle superior alveolar (MSA) and anterior superior alveolar (ASA) branches. -
Yahaya Et Al.Cdr
Anatomical Study of the Variations of the Facial bones in Skull of the Camel (Camelus dromendarius) in Nigeria SUMMARY wide opening on each side of the nasal The morphological features of facial bone and could be classified into two region of the camel skull were types (fIssura frontomaxillaris and investigated. A total of 42 camel skulls fissura nasofrontomaxillaris) (30 mature and 12 immature) from according to various patterns of three geographical locations articulations of the neighbouring (Maiduguri, Kano and Sokoto) in bones. The nasal region Nigeria were used in this study. The morphological information provided morphological features of the nasal in this study will contribute to region of the camel skulls were knowledge of the morphological observed to be composed of the os pattern of the fissures of facial bones in nasale, os incisivivum, os lacrimale, skull that can play a prominent role in maxilla and part of the os frontalale as osteological investigation or reported for other domestic animals. osteoarchaeology, and also offer Variations in the morphological elements for eventual comparative arrangement of the incisive, maxilla studies that can be used for tracing and nasal bones of the nasal region in origin of the animal. camel skulls for both mature and Key words: Morphology, variations, immature animals were observed to facial bones, skull, camel show two typical variations as nasomaxilloincisive notch (80%) and nasoincisive notch (20%) in all samples studied. Slit-like fissures were also observed at the frontomaxillary suture area in 90.5% mature and 92% immature camel skulls. These fissures were observed to be either rectangular or oval in shape and bilateral in 95% while in the remaining were either absent or unilateral. -
Anatomical Study of the Zygomaticotemporal Branch Inside the Orbit
Open Access Original Article DOI: 10.7759/cureus.1727 Anatomical Study of the Zygomaticotemporal Branch Inside the Orbit Joe Iwanaga 1 , Charlotte Wilson 1 , Koichi Watanabe 2 , Rod J. Oskouian 3 , R. Shane Tubbs 4 1. Seattle Science Foundation 2. Department of Anatomy, Kurume University School of Medicine 3. Neurosurgery, Complex Spine, Swedish Neuroscience Institute 4. Neurosurgery, Seattle Science Foundation Corresponding author: Charlotte Wilson, [email protected] Abstract The location of the opening of the zygomaticotemporal branch (ZTb) of the zygomatic nerve inside the orbit (ZTFIN) has significant surgical implications. This study was conducted to locate the ZTFIN and investigate the variations of the ZTb inside the orbit. A total of 20 sides from 10 fresh frozen cadaveric Caucasian heads were used in this study. The vertical distance between the inferior margin of the orbit and ZTFIN (V-ZTFIN), the horizontal distance between the lateral margin of the orbit and ZTFIN (H-ZTFIN), and the diameter of the ZTFIN (D-ZTFIN) were measured. The patterns of the ZTb inside the orbit were classified into five different groups: both ZTb and LN innervating the lacrimal gland independently (Group A), both ZTb and LN innervating the lacrimal gland with a communicating branch (Group B), ZTb joining the LN without a branch to the lacrimal gland (Group C), the ZTb going outside the orbit through ZTFIN without a branch to the lacrimal gland nor LN (Group D), and absence of the ZTb (Group E). The D-ZTFIN V-ZTFIN H-ZTFIN ranged from 0.2 to 1.1 mm, 6.6 to 21.5 mm, 2.0 to 11.3 mm, respectively. -
Anatomy of the Dog the Present Volume of Anatomy of the Dog Is Based on the 8Th Edition of the Highly Successful German Text-Atlas of Canine Anatomy
Klaus-Dieter Budras · Patrick H. McCarthy · Wolfgang Fricke · Renate Richter Anatomy of the Dog The present volume of Anatomy of the Dog is based on the 8th edition of the highly successful German text-atlas of canine anatomy. Anatomy of the Dog – Fully illustrated with color line diagrams, including unique three-dimensional cross-sectional anatomy, together with radiographs and ultrasound scans – Includes topographic and surface anatomy – Tabular appendices of relational and functional anatomy “A region with which I was very familiar from a surgical standpoint thus became more comprehensible. […] Showing the clinical rele- vance of anatomy in such a way is a powerful tool for stimulating students’ interest. […] In addition to putting anatomical structures into clinical perspective, the text provides a brief but effective guide to dissection.” vet vet The Veterinary Record “The present book-atlas offers the students clear illustrative mate- rial and at the same time an abbreviated textbook for anatomical study and for clinical coordinated study of applied anatomy. Therefore, it provides students with an excellent working know- ledge and understanding of the anatomy of the dog. Beyond this the illustrated text will help in reviewing and in the preparation for examinations. For the practising veterinarians, the book-atlas remains a current quick source of reference for anatomical infor- mation on the dog at the preclinical, diagnostic, clinical and surgical levels.” Acta Veterinaria Hungarica with Aaron Horowitz and Rolf Berg Budras (ed.) Budras ISBN 978-3-89993-018-4 9 783899 9301 84 Fifth, revised edition Klaus-Dieter Budras · Patrick H. McCarthy · Wolfgang Fricke · Renate Richter Anatomy of the Dog The present volume of Anatomy of the Dog is based on the 8th edition of the highly successful German text-atlas of canine anatomy. -
Congenital Nasal Pyriform Aperture Stenosis
Published online: 2021-08-02 HEAD AND NECK Congenital nasal pyriform aperture stenosis: A rare cause of nasal airway obstruction in a neonate Elsa M Thomas, Sridhar Gibikote, Jyoti S Panwar, John Mathew1 Departments of Radiology and 1ENT and Head and Neck Surgery, Christian Medical College, Vellore, Tamil Nadu, India Correspondence: Dr. Elsa Mary Thomas, Department of Radiology, Christian Medical College, Vellore, Tamil Nadu - 632 004, India. E-mail: [email protected] Abstract Congenital nasal pyriform aperture stenosis (CNPAS) is a rare cause of nasal airway obstruction that clinically mimics choanal atresia, but needs to be differentiated from the latter because of the widely divergent modes of management. We present a case of CNPAS, to highlight the importance of recognizing the classic signs of CNPAS on cross-sectional imaging. Key words: Choanal atresia; CNPAS; holoprosencephaly; megaincisor; pyriform aperture stenosis Introduction the upper airways. This was negative for choanal atresia, but revealed multiple typical findings, which led to the Congenital nasal pyriform aperture stenosis (CNPAS), first diagnosis of CNPAS. The nasal cavity showed medial clinically described in 1989,[1] is a rare cause of neonatal approximation of the nasal processes of the maxilla, nasal airway obstruction. It typically presents with clinical causing marked narrowing of the pyriform apertures, features that may mimic posterior choanal atresia,[2] and it which measured 3 mm in width on an axial image, at the is important to differentiate it from the latter as there are level of the inferior meatus [Figure 1]. There was associated differences in patient management.[3] thinning of the anterior nasal septum. -
Chapter 2 Implants and Oral Anatomy
Chapter 2 Implants and oral anatomy Associate Professor of Maxillofacial Anatomy Section, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Tatsuo Terashima In recent years, the development of new materials and improvements in the operative methods used for implants have led to remarkable progress in the field of dental surgery. These methods have been applied widely in clinical practice. The development of computerized medical imaging technologies such as X-ray computed tomography have allowed detailed 3D-analysis of medical conditions, resulting in a dramatic improvement in the success rates of operative intervention. For treatment with a dental implant to be successful, it is however critical to have full knowledge and understanding of the fundamental anatomical structures of the oral and maxillofacial regions. In addition, it is necessary to understand variations in the topographic and anatomical structures among individuals, with age, and with pathological conditions. This chapter will discuss the basic structure of the oral cavity in relation to implant treatment. I. Osteology of the oral area The oral cavity is composed of the maxilla that is in contact with the cranial bone, palatine bone, the mobile mandible, and the hyoid bone. The maxilla and the palatine bones articulate with the cranial bone. The mandible articulates with the temporal bone through the temporomandibular joint (TMJ). The hyoid bone is suspended from the cranium and the mandible by the suprahyoid and infrahyoid muscles. The formation of the basis of the oral cavity by these bones and the associated muscles makes it possible for the oral cavity to perform its various functions. -
Morphometry of Bony Orbit Related to Gender in Dry Adult Skulls of South Indian Population
International Journal of Health Sciences and Research www.ijhsr.org ISSN: 2249-9571 Original Research Article Morphometry of Bony Orbit Related to Gender in Dry Adult Skulls of South Indian Population S. Senthil Kumar1, E. Gnanagurudasan2 1Professor, 2Ph.D Scholar, Department of Anatomy, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra University, Porur, Chennai, Tamil Nadu. Corresponding Author: E. Gnanagurudasan Received: 16/07/2015 Revised: 11/08/2015 Accepted: 12/08/2015 ABSTRACT Introduction: Orbit lodges important structures for vision and allows passage of fine neurovascular structures in it. The knowledge of orbital morphometry helps to protect those structures during various surgical procedures. Aim: To determine the morphometry of bony orbit in dry South Indian skulls related to gender and to compare the results with previous authors. Material and Methods: The material of the present study consists of 100 orbits from 50 skulls (right & left) which are identifiable of their sex. Foetal skulls and skulls with damages in the area of measurement were excluded. All the parameters were examined by a single observer using a vernier calliper, divider and millimetre scale. In each wall of the orbit, a bony landmark is chosen from where the distance of other bony structures is measured. Result: The result of the present study showed significance with respect to gender and side. Conclusion: The data of the present study will be helpful for various surgical approaches around the orbit. Keywords: orbit, South Indian skulls, morphometry. INTRODUCTION pyramidal cavity formed by seven bones The bony orbits are skeletal cavities namely maxilla, palatine, frontal, zygomatic, located on either side of the root of the nose. -
Macroscopic Anatomy of the Nasal Cavity and Paranasal Sinuses of the Domestic Pig (Sus Scrofa Domestica) Daniel John Hillmann Iowa State University
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1971 Macroscopic anatomy of the nasal cavity and paranasal sinuses of the domestic pig (Sus scrofa domestica) Daniel John Hillmann Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Animal Structures Commons, and the Veterinary Anatomy Commons Recommended Citation Hillmann, Daniel John, "Macroscopic anatomy of the nasal cavity and paranasal sinuses of the domestic pig (Sus scrofa domestica)" (1971). Retrospective Theses and Dissertations. 4460. https://lib.dr.iastate.edu/rtd/4460 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. 72-5208 HILLMANN, Daniel John, 1938- MACROSCOPIC ANATOMY OF THE NASAL CAVITY AND PARANASAL SINUSES OF THE DOMESTIC PIG (SUS SCROFA DOMESTICA). Iowa State University, Ph.D., 1971 Anatomy I University Microfilms, A XEROX Company, Ann Arbor. Michigan I , THIS DISSERTATION HAS BEEN MICROFILMED EXACTLY AS RECEIVED Macroscopic anatomy of the nasal cavity and paranasal sinuses of the domestic pig (Sus scrofa domestica) by Daniel John Hillmann A Dissertation Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of DOCTOR OF PHILOSOPHY Major Subject: Veterinary Anatomy Approved: Signature was redacted for privacy. h Charge of -^lajoï^ Wor Signature was redacted for privacy. For/the Major Department For the Graduate College Iowa State University Ames/ Iowa 19 71 PLEASE NOTE: Some Pages have indistinct print. -
Atlas of the Facial Nerve and Related Structures
Rhoton Yoshioka Atlas of the Facial Nerve Unique Atlas Opens Window and Related Structures Into Facial Nerve Anatomy… Atlas of the Facial Nerve and Related Structures and Related Nerve Facial of the Atlas “His meticulous methods of anatomical dissection and microsurgical techniques helped transform the primitive specialty of neurosurgery into the magnificent surgical discipline that it is today.”— Nobutaka Yoshioka American Association of Neurological Surgeons. Albert L. Rhoton, Jr. Nobutaka Yoshioka, MD, PhD and Albert L. Rhoton, Jr., MD have created an anatomical atlas of astounding precision. An unparalleled teaching tool, this atlas opens a unique window into the anatomical intricacies of complex facial nerves and related structures. An internationally renowned author, educator, brain anatomist, and neurosurgeon, Dr. Rhoton is regarded by colleagues as one of the fathers of modern microscopic neurosurgery. Dr. Yoshioka, an esteemed craniofacial reconstructive surgeon in Japan, mastered this precise dissection technique while undertaking a fellowship at Dr. Rhoton’s microanatomy lab, writing in the preface that within such precision images lies potential for surgical innovation. Special Features • Exquisite color photographs, prepared from carefully dissected latex injected cadavers, reveal anatomy layer by layer with remarkable detail and clarity • An added highlight, 3-D versions of these extraordinary images, are available online in the Thieme MediaCenter • Major sections include intracranial region and skull, upper facial and midfacial region, and lower facial and posterolateral neck region Organized by region, each layered dissection elucidates specific nerves and structures with pinpoint accuracy, providing the clinician with in-depth anatomical insights. Precise clinical explanations accompany each photograph. In tandem, the images and text provide an excellent foundation for understanding the nerves and structures impacted by neurosurgical-related pathologies as well as other conditions and injuries. -
Anthropometric Analysis of Infraorbital Foramen in Adult Indian Dry Skull
Running title : Anthropometric Analysis of Infraorbital Foramen Nitte University Journal of Health Science Original Article Anthropometric Analysis of Infraorbital Foramen in Adult Indian Dry Skull JohncyIttyPanicker1 ,VishalKumar 2 &VinayKumarVeerannasetty 3 1MBBS Student, 3 Associate Professor,Department of Anatomy,K. S. Hegde Medical Academy,Nitte University,Mangalore. 2Professor & HOD, Department of Anatomy,Kodagu Institute of Medical Sciences, Madikeri. *Corresponding Author : Vishal Kumar, Professor & HOD, Department of Anatomy, Kodagu Institute of Medical Sciences, Madikeri, Kodagu, Karnataka - 571 201. E-mail : [email protected] Received : 01-07-2015 Abstract : Review Completed : 08-03-2016 Introduction: Normally infra orbital foramen (IOF) is situated on the anterior surface of maxilla Accepted : 16-03-2016 about 1cm below the infra orbital margin (IOM) bilaterally. Infra orbital vessels and nerves emerge out through this foramen. Infra orbital nerve (ION) terminates by supplying skin over Keywords : Infraorbital margin, the lower eyelid, conjunctiva, lateral aspect of external surface of nose, upper lip, ala of the nose Infraorbital nerve, Piriform and the premolar teeth. Infra orbital vessels supply the area surrounding the IOF. aperture, Indian population, maxillofacial surgery. Objective: To measure distance between superior part of the rim of the IOF to IOM (DIM) and the distance between the medial part of the rim of the IOF to lateral margin of the pyriform Access this article online aperture (DIP). Compare the measurements of both sides. Compare our studies with other Quick Response Code authors. Materials and methods: Sixty adult dry skulls of unknown sex were studied. Those skulls with damaged foramen were excluded. Measurements were done in millimetres. Result: The mean DIM on right side is 5.96 mm and on left side it is 6.07. -
Anatomy Respect in Implant Dentistry. Assortment, Location, Clinical Importance (Review Article)
ISSN: 2394-8418 DOI: https://doi.org/10.17352/jdps CLINICAL GROUP Received: 19 August, 2020 Review Article Accepted: 31 August, 2020 Published: 01 September, 2020 *Corresponding author: Dr. Rawaa Y Al-Rawee, BDS, Anatomy Respect in Implant M Sc OS, MOMS MFDS RCPS Glasgow, PhD, MaxFacs, Department of Oral and Maxillofacial Surgery, Al-Salam Dentistry. Assortment, Teaching Hospital, Mosul, Iraq, Tel: 009647726438648; E-mail: Location, Clinical Importance ORCID: https://orcid.org/0000-0003-2554-1121 Keywords: Anatomical structures; Dental implants; (Review Article) Basic implant protocol; Success criteria; Clinical anatomy Rawaa Y Al-Rawee1* and Mohammed Mikdad Abdalfattah2 https://www.peertechz.com 1Department of Oral and Maxillofacial Surgery, Al-Salam Teaching Hospital. Mosul, Iraq 2Post Graduate Student in School of Dentistry, University of Leeds. United Kingdom, Ministry of Health, Iraq Abstract Aims: In this article; we will reviews critically important basic structures routinely encountered in implant therapy. It can be a brief anatomical reference for beginners in the fi eld of dental implant surgeries. Highlighting the clinical importance of each anatomical structure can be benefi cial for fast informations refreshing. Also it can be used as clinical anatomical guide for implantologist and professionals in advanced surgical procedures. Background: Basic anatomy understanding prior to implant therapy; it's an important fi rst step in dental implant surgery protocol specifi cally with technology advances and the popularity of dental implantation as a primary choice for replacement loosed teeth. A thorough perception of anatomy provides the implant surgeon with the confi dence to deal with hard or soft tissues in efforts to restore the exact aim of implantation whether function or esthetics and end with improving health and quality of life. -
The Simple Tooth: a Review of Feline Skull and Tooth Anatomy Cindy Charlier, DVM, DAVDC Fox Valley Veterinary Dentistry and Surgery Chicago, IL
The Simple Tooth: A Review of Feline Skull and Tooth Anatomy Cindy Charlier, DVM, DAVDC Fox Valley Veterinary Dentistry and Surgery Chicago, IL Skull anatomy The skull can be divided into the fused bones of the calvarium, the upper jaw, and the lower jaw. The cranial portion of the calvarium consists of the paired frontal bones, which articulate cranially with the nasal bones and maxillae, and caudally with the parietal bones. The nasal cavity contains an ethmoid bone and is bordered dorsally by the incisive, nasal and frontal bones, laterally by the incisive, maxilla, lacrimal, frontal and palatine bones, ventrally by the incisive, maxilla, and palatine bones and caudally by a single vomer bone which lies ventral to the ethmoid and dorsal to the hard palate. The lateral surface of the frontal bone shapes the dorsomedial and caudal aspect of the orbit. The medial and ventral part of the orbit is completed by articulation of the frontal bone with the lacrimal, ethmoid, maxilla, presphenoid and palatine bones. The zygomatic bone forms the lateral boundary of the orbit. The temporal process of the zygomatic bone articulates with the zygomatic process of the temporal bone, forming the zygomatic arch. Caudal to the frontal bones and forming the caudal portion of the cranial vault are the paired parietal bones, which articulate caudally with the occipital bone. Ventrally, the parietal bone joins the temporal and basisphenoid bones. The upper jaw includes the incisive, maxillary, and palatine bones. The paired incisive bones form approximately one-sixth of the hard palate, and three incisors are rooted in each incisive bone.