Signs of Tooth Eruption in Infants
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Pediatric Oral Pathology. Soft Tissue and Periodontal Conditions
PEDIATRIC ORAL HEALTH 0031-3955100 $15.00 + .OO PEDIATRIC ORAL PATHOLOGY Soft Tissue and Periodontal Conditions Jayne E. Delaney, DDS, MSD, and Martha Ann Keels, DDS, PhD Parents often are concerned with “lumps and bumps” that appear in the mouths of children. Pediatricians should be able to distinguish the normal clinical appearance of the intraoral tissues in children from gingivitis, periodontal abnormalities, and oral lesions. Recognizing early primary tooth mobility or early primary tooth loss is critical because these dental findings may be indicative of a severe underlying medical illness. Diagnostic criteria and .treatment recommendations are reviewed for many commonly encountered oral conditions. INTRAORAL SOFT-TISSUE ABNORMALITIES Congenital Lesions Ankyloglossia Ankyloglossia, or “tongue-tied,” is a common congenital condition characterized by an abnormally short lingual frenum and the inability to extend the tongue. The frenum may lengthen with growth to produce normal function. If the extent of the ankyloglossia is severe, speech may be affected, mandating speech therapy or surgical correction. If a child is able to extend his or her tongue sufficiently far to moisten the lower lip, then a frenectomy usually is not indicated (Fig. 1). From Private Practice, Waldorf, Maryland (JED); and Department of Pediatrics, Division of Pediatric Dentistry, Duke Children’s Hospital, Duke University Medical Center, Durham, North Carolina (MAK) ~~ ~ ~ ~ ~ ~ ~ PEDIATRIC CLINICS OF NORTH AMERICA VOLUME 47 * NUMBER 5 OCTOBER 2000 1125 1126 DELANEY & KEELS Figure 1. A, Short lingual frenum in a 4-year-old child. B, Child demonstrating the ability to lick his lower lip. Developmental Lesions Geographic Tongue Benign migratory glossitis, or geographic tongue, is a common finding during routine clinical examination of children. -
Eruption Abnormalities in Permanent Molars: Differential Diagnosis and Radiographic Exploration
DOI: 10.1051/odfen/2014054 J Dentofacial Anom Orthod 2015;18:403 © The authors Eruption abnormalities in permanent molars: differential diagnosis and radiographic exploration J. Cohen-Lévy1, N. Cohen2 1 Dental surgeon, DFO specialist 2 Dental surgeon ABSTRACT Abnormalities of permanent molar eruption are relatively rare, and particularly difficult to deal with,. Diagnosis is founded mainly on radiographs, the systematic analysis of which is detailed here. Necessary terms such as non-eruption, impaction, embedding, primary failure of eruption and ankylosis are defined and situated in their clinical context, illustrated by typical cases. KEY WORDS Molars, impaction, primary failure of eruption (PFE), dilaceration, ankylosis INTRODUCTION Dental eruption is a complex developmen- at 0.08% for second maxillary molars and tal process during which the dental germ 0.01% for first mandibular molars. More re- moves in a coordinated fashion through cently, considerably higher prevalence rates time and space as it continues the edifica- were reported in retrospective studies based tion of the root; its 3-dimensional pathway on orthodontic consultation records: 2.3% crosses the alveolar bone up to the oral for second molar eruption abnormalities as epithelium to reach its final position in the a whole, comprising 1.5% ectopic eruption, occlusion plane. This local process is regu- 0.2% impaction and 0.6% primary failure of lated by genes expressing in the dental fol- eruption (PFE) (Bondemark and Tsiopa4), and licle, at critical periods following a precise up to 1.36% permanent second molar iim- chronology, bilaterally coordinated with fa- paction according to Cassetta et al.6. cial growth. -
Tooth Eruption and Movement
Tooth eruption and movement Dr. Krisztián Nagy CÍM beírása!!! DÁTUM Diphydont dentition Deciduous dentition – primary dentition CÍM beírása!!! DÁTUM Diphydont dentition Permanent dentition – secondary dentition CÍM beírása!!! DÁTUM Mixed Dentition: Presence of both dentitions CÍM beírása!!! DÁTUM Tooth eruption CÍM beírása!!! DÁTUM • Teeth are formed in relation to the alveolar process. • Epithelial thickening: Dental lamina • Enamel organs: Series of 10 local thickenings on dental lamina in each alveolar process. • Each thickening forms one milk tooth. CÍM beírása!!! DÁTUM Stages in the formation of a tooth germ CÍM beírása!!! DÁTUM Formation of enamel organs CÍM beírása!!! DÁTUM Stages Bud stage : • Characterized by formation of a tooth bud. • The epithelial cells begin to proliferate into the ectomesenchyme of the jaw. CÍM beírása!!! DÁTUM Cap stage : • Formation of dental papilla. • The enamel organ & dental papilla forms the tooth germ. • Formation of ameloblasts. • Formation of odontoblasts. CÍM beírása!!! DÁTUM Bell stage: The cells on the periphery of the enamel organ separate into three important layers: • Cuboidal cells on the periphery of the dental organ form the outer enamel epithelium. • The cells of the enamel organ adjacent to the dental papilla form the inner enamel epithelium. • The cells between the inner enamel epithelium and the stellate reticulum form a layer known as the stratum intermedium. The dental lamina begin to disintegrates, leaving the developing teeth completely separated from the epithelium of the oral cavity. CÍM beírása!!! DÁTUM Crown stage : 1. Mineralization of hard tissues occur. 2. The inner enamel epithelial cells change in shape from cuboidal to columnar. The nuclei of these cells move closer to the stratum intermedium and away from the dental papilla. -
Effect of Posters and Mobile-Health Education Strategies on Teething Beliefs and Oral Health Knowledge Among Mothers in Nairobi
EFFECT OF POSTERS AND MOBILE-HEALTH EDUCATION STRATEGIES ON TEETHING BELIEFS AND ORAL HEALTH KNOWLEDGE AMONG MOTHERS IN NAIROBI. DR. REGINA MUTAVE JAMES REGISTRATION NUMBER: V91/96427/2014 Department of Periodontology/Community and Preventive Dentistry THESIS SUBMITTED IN FULFILMENT OF THE DOCTOR OF PHILOSOPHY DEGREE (PhD) IN COMMUNITY AND PREVENTIVE DENTISTRY, UNIVERSITY OF NAIROBI DECLARATION: I, Regina Mutave James hereby declare that this is my original work and that it has not been submitted by any other person for research purpose, degree or otherwise in any other university or institution. Signed ………………………………………. Date ………………………………. Regina Mutave James R.M.J PhD Thesis - 2015 Page i SUPERVISORS’ DECLARATION This research thesis has been submitted for the fulfillment of the requirement for the award of PhD in Community and Preventive Dentistry with our approval as supervisors. Supervisors: Signed ………………………………..Date……………………………. Prof. Loice W. Gathece BDS., MPH., PhD( Nbi). Department of Periodontology/ Community and Preventive Dentistry, University of Nairobi. Signed ………………………………..Date……………………………. Prof. Arthur M. Kemoli BDS (Nbi)., MSc (UvA)., PhD (UvA). Department of Pediatric Dentistry and Orthodontics, University of Nairobi. R.M.J PhD Thesis - 2015 Page ii DEDICATION To the Almighty, for His unending Grace! R.M.J PhD Thesis - 2015 Page iii ACKNOWLEDGEMENTS My PhD studies including this thesis were made possible by the financial support that I received from the University of Nairobi, and I am grateful for the opportunity. I wish to thank my supervisors Prof. Loice Gathece and Prof Arthur Kemoli who were always there to offer guidance and encouragement throughout the process. My sincere appreciation for my family and friends who stood by me even when I had no time for them and especially my children Erick, Aileen, Mbithe and Jynette. -
Eruption of Bioengineered Teeth: a New Approach Based on a Polycaprolactone Biomembrane
nanomaterials Article Eruption of Bioengineered Teeth: A New Approach Based on a Polycaprolactone Biomembrane Céline Stutz 1 , François Clauss 1,2,3, Olivier Huck 1,2,4 , Georg Schulz 5, Nadia Benkirane-Jessel 1,2 , Fabien Bornert 1,3,6, Sabine Kuchler-Bopp 1 and Marion Strub 1,2,3,* 1 INSERM (French National Institute of Health and Medical Research), UMR 1260, CRBS Regenerative NanoMedicine (RNM), FMTS, 1 rue Eugène Boeckel, 67084 Strasbourg, France; [email protected] (C.S.); [email protected] (F.C.); [email protected] (O.H.); [email protected] (N.B.-J.); [email protected] (F.B.); [email protected] (S.K.-B.) 2 Faculty of Dentistry, University of Strasbourg (UDS), 8 rue Ste Elisabeth, 67000 Strasbourg, France 3 Department of Pediatric Dentistry, University Hospitals of Strasbourg (HUS), 1 Place de l’Hôpital, 67000 Strasbourg, France 4 Department of Periodontology, University Hospitals of Strasbourg (HUS), 1 Place de l’Hôpital, 67000 Strasbourg, France 5 Core Facility Micro- and Nanotomography, Biomaterials Science Center (BMC), Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14, 4123 Allschwil, Switzerland; [email protected] 6 Department of Oral Medicine and Oral Surgery, University Hospitals of Strasbourg (HUS), 1 Place de l’Hôpital, 67000 Strasbourg, France * Correspondence: [email protected] Abstract: Obtaining a functional tooth is the ultimate goal of tooth engineering. However, the implantation of bioengineered teeth in the jawbone of adult animals never allows for spontaneous Citation: Stutz, C.; Clauss, F.; Huck, eruption due mainly to ankylosis within the bone crypt. The objective of this study was to develop O.; Schulz, G.; Benkirane-Jessel, N.; an innovative approach allowing eruption of implanted bioengineered teeth through the isolation Bornert, F.; Kuchler-Bopp, S.; Strub, of the germ from the bone crypt using a polycaprolactone membrane (PCL). -
Veterinary Dentistry Basics
Veterinary Dentistry Basics Introduction This program will guide you, step by step, through the most important features of veterinary dentistry in current best practice. This chapter covers the basics of veterinary dentistry and should enable you to: ü Describe the anatomical components of a tooth and relate it to location and function ü Know the main landmarks important in assessment of dental disease ü Understand tooth numbering and formulae in different species. ã 2002 eMedia Unit RVC 1 of 10 Dental Anatomy Crown The crown is normally covered by enamel and meets the root at an important landmark called the cemento-enamel junction (CEJ). The CEJ is anatomically the neck of the tooth and is not normally visible. Root Teeth may have one or more roots. In those teeth with two or more roots the point where they diverge is called the furcation angle. This can be a bifurcation or a trifurcation. At the end of the root is the apex, which can have a single foramen (humans), a multiple canal delta arrangement (cats and dogs) or remain open as in herbivores. In some herbivores the apex closes eventually (horse) whereas whereas in others it remains open throughout life. The apical area is where nerves, blood vessels and lymphatics travel into the pulp. Alveolar Bone The roots are encased in the alveolar processes of the jaws. The process comprises alveolar bone, trabecular bone and compact bone. The densest bone lines the alveolus and is called the cribriform plate. It may be seen radiographically as a white line called the lamina dura. -
Uprighting an Impacted Permanent Mandibular First Molar Associated with a Dentigerous Cyst and a Missing Second Mandibular Molar—A Case Report
dentistry journal Case Report Uprighting an Impacted Permanent Mandibular First Molar Associated with a Dentigerous Cyst and a Missing Second Mandibular Molar—A Case Report Konstantina Tsironi 1,* , Emmanouil Inglezos 1, Emmanouil Vardas 2 and Anastasia Mitsea 3 1 Posidonos 14, Imia square, Voula, 16673 Athens, Greece 2 Clinic of Hospital Dentistry, Dental School, National and Kapodistrian University of Athens, Thivon 2 Goudi, 11527 Athens, Greece 3 Department of Oral Diagnosis and Radiology, Dental School, National and Kapodistrian University of Athens, Thivon 2 Goudi, 11527 Athens, Greece * Correspondence: [email protected]; Tel.: +30-698-682-7064 Received: 3 April 2019; Accepted: 21 May 2019; Published: 27 June 2019 Abstract: The purpose of this paper is to present a case of an impacted mandibular first molar associated with a dentigerous cyst and a missing mandibular second molar in an 11-year-old girl that was treated with combined surgical and orthodontic procedures. After clinical and radiographic evaluation, marsupialization of the cyst was decided, and a molar attachment was bonded on the buccal side of the impacted molar as a part of a full orthodontic treatment with fixed appliances. After 18 months of orthodontic traction, the molar was moved to a more advantageous position, and new bone apposition was observed on the site of the cystic lesion. Histological examination confirmed a dentigerous cyst. The molar was left to erupt spontaneously for 14 more months. A functional occlusion was finally achieved. An interdisciplinary approach proved to be an effective modality in treating a large dentigerous cyst associated with a deeply impacted first mandibular molar, presenting many advantages, such as new bone apposition and patient comfort. -
A Global Compendium of Oral Health
A Global Compendium of Oral Health A Global Compendium of Oral Health: Tooth Eruption and Hard Dental Tissue Anomalies Edited by Morenike Oluwatoyin Folayan A Global Compendium of Oral Health: Tooth Eruption and Hard Dental Tissue Anomalies Edited by Morenike Oluwatoyin Folayan This book first published 2019 Cambridge Scholars Publishing Lady Stephenson Library, Newcastle upon Tyne, NE6 2PA, UK British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library Copyright © 2019 by Morenike Oluwatoyin Folayan and contributors All rights for this book reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owner. ISBN (10): 1-5275-3691-2 ISBN (13): 978-1-5275-3691-3 TABLE OF CONTENTS Foreword .................................................................................................. viii Introduction ................................................................................................. 1 Dental Development: Anthropological Perspectives ................................. 31 Temitope A. Esan and Lynne A. Schepartz Belarus ....................................................................................................... 48 Natallia Shakavets, Alexander Yatzuk, Klavdia Gorbacheva and Nadezhda Chernyavskaya Bangladesh ............................................................................................... -
Initiation to Eruption
Head and Neck embryology Tooth Development Review head and neckblk embryology Initiation to eruption Skip Review Initiation Initiation stomodeum Epithelial cells (dental lamina) During 6th week, ectoderm in stomodeum forms horseshoe shaped mass of oral epithelium mesenchyme Basement membrane mesenchyme Initiation of anterior primary teeth Epithelial cells in horseshoe Dental lamina begins begins the sixth to seventh week form dental lamina growing into mesenchyme of development, initiation of additional At site where tooth will be teeth follows and continues for years Dental Lamina – Initiation Supernumerary tooth PREDICT what would happen if an extra tooth was initiated. Mesiodens 1 Bud Stage – eighth week Bud Stage Epithelium (dental Lamina) Dental lamina grows down into mesenchyme at site of tooth. Mesenchyme starts to change composition in response mesenchyme PREDICT what would happen if two tooth buds fused together or one tooth bud split in half. Fusion/Gemination Cap stage – week 9 By week 9, all germ layers of future tooth have formed ElEnamel organ (ename ll)l only) Dental papilla (dentin and pulp) Fusion Gemination Dental sac (cementum, PDL, Alveolar bone) PREDICT how you would know if it was mesenchyme fusion or gemination Cap Stage Successional Dental Lamina Each primary tooth germ has epithelium a successional lamina that becomes a permanent tooth Succedaneous teeth replace a deciduous tooth, nonsuccedaneous do not IDENTIFY nonsuccedaneous teeth mesenchyme PREDICT What occurs if no successional lamina forms? 2 Congenitally -
Tooth Eruption Disorders Associated with Systemic and Genetic Diseases: Clinical Guide
DOI: 10.1051/odfen/2018129 J Dentofacial Anom Orthod 2017;20:402 © The author Tooth eruption disorders associated with systemic and genetic diseases: clinical guide C. Choukroune Qualified specialist in Dentofacial Orthopedics, former Hospital Resident, private practice in Boulogne-Billancourt SUMMARY Tooth eruption is defined as the movement of the dental root and the tooth from its original devel- opment site in the alveolar process to its functional position in the oral cavity. Despite vast amounts of research, the exact mechanism of tooth eruption remains unknown. The authors have shown that the dental crown is not necessary for tooth eruption, whereas the dental follicle seems to be essential for the process. The formation of an eruption pathway by bone resorption allows the root to breach the oral cavity, at the same time, bone formation occurs at the basal level of the dental root. Multiples genetic and molecular structures coordinate these events. Sometimes it is by studying pathological conditions that we discover the essential interactions that occur during tooth eruption. Frequently, a delayed tooth eruption (DTE) is the first, if not the only, expression of a local or general pathology. A DTE can affect directly the diagnosis, the treatment planning, or the timing of the orthodontic treatment. Therefore, it is essential for the orthodontist to identify the cause of a DTE for implementing the correct treatment. KEY WORDS Tooth eruption, genetic disease inborn, systemic disease, delayed tooth eruption INTRODUCTION Dental eruption is a unique physiolog- between osteoblasts, osteoclasts, and the ical event; the tooth is the only organ to dental follicle (DF), involving many genet- appear a few months or years after birth. -
QUICK ORAL HEALTH FACTS ABOUT the YOUNG Dr Ng Jing Jing, Dr Wong Mun Loke
ORAL health IN PRIMARY CARE UNIT NO. 2 QUICK ORAL HEALTH FACTS ABOUT THE YOUNG Dr Ng Jing Jing, Dr Wong Mun Loke ABSTRACT Table 1. Eruption sequence of Primary Dentition This article sheds light on the sequence of teeth eruption Primary Upper Teeth Primary Lower Teeth in the young and teething problems; highlights the importance and functions of the primary dentition and Central Incisors: 8-13 months Central Incisors: 6-10 months provides a quick overview of common developmental Lateral Incisors: 8-13 months Lateral Incisors: 10-16 months dental anomalies and other dental conditions in Canines: 16-23 months Canines: 16-23 months children. First Molars: 16-23 months First Molars: 13-19 months Second Molars: 25-33 months Second Molars: 23-31 months SFP2011; 37(1) Supplement : 10-13 Table 2. Eruption sequence of Adult Dentition Adult Upper Teeth Adult Lower Teeth INTRODUCTION Central Incisors: 7-8 years Central Incisors: 6-7 years The early years are always full of exciting moments as we observe Lateral Incisors: 8-9 years Lateral Incisors: 7-8 years our children grow and develop. One of the most noticeable Canines: 11-12 years Canines: 9-10 years aspects of their growth and development is the eruption of First Premolars: 10-11 years First Premolars: 10-11 years teeth. The first sign of a tooth in the mouth never fails to Second Premolars: 11-12 years Second Premolars: 11-12 years attract the attention of the parent and child. For the parent, it First Molars: 6-7 years First Molars: 6-7 years marks an important developmental milestone of the child but Second Molars: 12-13 years Second Molars: 11-13 years for the child, it can be a source of irritation brought on by the Third Molars: 18-25 years Third Molars: 18-25 years whole process of teething. -
Tooth Eruption
Dr Sameshima CBY 579 lecture notes • Chronology • Biology • Ankylosis • Infraocclusion or submerged teeth • Primary Failure of Eruption • Tooth Migration Classic ADA North American Standards for Tooth Development Eruption sequence • Maxillary teeth: 6 1 2 4 5 3 7 • Mandibular teeth: 6 1 2 3 4 5 7 • Females develop slightly earlier than males Standards on based on data several decades old in the US using Caucasian populations of Northern European ancestry 1 Dr Sameshima CBY 579 lecture notes HAVE THERE BEEN ANY CHANGES REPORTED IN THE LAST FEW DECADES? Emergence of permanent teeth and dental age in a series of Finns – Nystrom et al. Acta Odontologica Scandinavia April 2001. 68% of children – lower 1s erupted before 6s – shift in emergence order in last 30 years New standards for emergence of permanent teeth in Australians – Diamanti and Townsend. Australian Dental J. 2008. Eruption rate of all permanent teeth delayed compared to data from previous years. Expected location of neonatal line The Consideration of Dental Development In Serial extraction - Moorrees CA, Fanning EA, Gron AM. AJO 1963. OLD BUT STILL USEFUL 2 Dr Sameshima CBY 579 lecture notes The Consideration of Dental Development In Serial extraction - Moorrees CA, Fanning EA, Gron AM. AJO 1963. The Consideration of Dental Development In Serial extraction - Moorrees CA, Fanning EA, Gron AM. AJO 1963. The Consideration of Dental Development In Serial extraction - Moorrees CA, Fanning EA, Gron AM. AJO 1963. 3 Dr Sameshima CBY 579 lecture notes The Consideration of Dental Development In Serial extraction - Moorrees CA, Fanning EA, Gron AM. AJO 1963. BIOLOGY OF TOOTH ERUPTION • Definition: movement of a tooth from its site of development within the alveolar process.