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Pattern of Third Molar Impaction; Correlation with Malocclusion And
Pattern of Third Molar Impaction; Correlation with Malocclusion and Facial Growth SograYassaei1, Farhad O Wlia2, Zahra Ebrahimi Nik3 1Associate professor, Department of Orthodontics, Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd 89195/165, Iran. 2Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.3Postgraduate student of orthodontics, Department of Orthodontics, Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd 89195/165, Iran. Abstract Background: The aim of the present study was to evaluate the type of mandibular and maxillary third molar impaction in different malocclusions and facial growth patterns. Method and materials: In this descriptive cross sectional study, 364 impacted third molars of patients referring to the orthodontic department of Yazd University were assessed radio graphically. Also, the type of malocclusion and the facial growth pattern was determined by analyzing their lateral cephalograms. Collected data were entered to a computer and statistical tests (Chi-square) were carried out using SPSS16. Results: Significant correlation was found between the type of mandibular third molar impaction (based on Pell Gregory classification) and different types of malocclusion. Also, the dominant form of impaction (based on winter classification) among different types of facial growth pattern was the vertical one. Conclusion According to the results of this study, the vertical level of mandibular third molar impaction relative to the adjacent second molar impaction was statistically associated to the type of malocclusion. Also, we found no correlation between the M3s impaction and the type of facial growth pattern. Key Words: Third molar Impaction, Malocclusion, Facial growth pattern Introduction (2010) found higher incidence of mandibular M3s impaction The impacted tooth is one that fails to erupt into the dental in malocclusion class III [3]. -
Tutankhamun's Dentition: the Pharaoh and His Teeth
Brazilian Dental Journal (2015) 26(6): 701-704 ISSN 0103-6440 http://dx.doi.org/10.1590/0103-6440201300431 1Department of Oral and Maxillofacial Tutankhamun’s Dentition: Surgery, University Hospital of Leipzig, Leipzig, Germany The Pharaoh and his Teeth 2Institute of Egyptology/Egyptian Museum Georg Steindorff, University of Leipzig, Leipzig, Germany 3Department of Orthodontics, University Hospital of Greifswald, Greifswald, Germany Niels Christian Pausch1, Franziska Naether2, Karl Friedrich Krey3 Correspondence: Dr. Niels Christian Pausch, Liebigstraße 12, 04103 Leipzig, Germany. Tel: +49- 341-97-21160. e-mail: niels. [email protected] Tutankhamun was a Pharaoh of the 18th Dynasty (New Kingdom) in ancient Egypt. Medical and radiological investigations of his skull revealed details about the jaw and teeth status of the mummy. Regarding the jaw relation, a maxillary prognathism, a mandibular retrognathism and micrognathism have been discussed previously. A cephalometric analysis was performed using a lateral skull X-ray and a review of the literature regarding Key Words: Tutankhamun’s King Tutankhamun´s mummy. The results imply diagnosis of mandibular retrognathism. dentition, cephalometric analysis, Furthermore, third molar retention and an incomplete, single cleft palate are present. mandibular retrognathism Introduction also been discussed (11). In 1922, the British Egyptologist Howard Carter found the undisturbed mummy of King Tutankhamun. The Case Report spectacular discovery enabled scientists of the following In the evaluation of Tutankhamun’s dentition and jaw decades to analyze the Pharaoh's remains. The mummy alignment, contemporary face reconstructions and coeval underwent multiple autopsies. Until now, little was artistic images can be of further use. However, the ancient published about the jaw and dentition of the King. -
Therapeutic Management of Patients with Class III Skeletal Malocclusion
Szpyt Justyna, Gębska Magdalena. Therapeutic management of patients with class III skeletal malocclusion. Mandibular prognathism, maxillary retrognathism – a case report. Journal of Education, Health and Sport. 2019;9(5):20-31. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.2656446 http://ojs.ukw.edu.pl/index.php/johs/article/view/6872 https://pbn.nauka.gov.pl/sedno-webapp/works/912455 The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part B item 1223 (26/01/2017). 1223 Journal of Education, Health and Sport eISSN 2391-8306 7 © The Authors 2019; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike. (http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 15.04.2019. Revised: 25.04.2019. Accepted: 01.05.2019. Therapeutic management of patients with class III skeletal malocclusion. Mandibular prognathism, maxillary retrognathism – a case report Justyna Szpyt1, Magdalena Gębska2 1. Physiotherapy student, Faculty of Health Sciences, Pomeranian Medical University in Szczecin. -
Odontogenic Fibroma
J Formos Med Assoc 2011;110(1):27–35 Contents lists available at ScienceDirect Volume 110 Number 1 January 2011 ISSN 0929 6646 Journal of the Journal of the Formosan Medical Association Formosan Medical Association Treatment of colorectal cancer in Taiwan Antimicrobial resistance in Taiwan Cyclic vomiting syndrome Stent implantation for coronary artery disease Formosan Medical Association Journal homepage: http://www.jfma-online.com Taipei, Taiwan Original Article Odontogenic Fibroma: A Clinicopathological Study of 15 Cases Hung-Pin Lin,1 Hsin-Ming Chen,2,3,4 Chuan-Hang Yu,5,6 Hsiang Yang,4 Ru-Cheng Kuo,4 Ying-Shiung Kuo,4,7 Yi-Ping Wang1,3,4* Background/Purpose: Odontogenic fibroma (ODF) is a rare odontogenic tumor. It can be further divided into peripheral odontogenic fibroma (PODF) and central odontogenic fibroma (CODF). This retrospective study evaluated the clinical and histopathological features of 15 ODFs in Taiwanese patients. Methods: Fifteen consecutive cases of ODF were collected from 1984 to 2009. The clinical data and micro- scopic features of these cases were reviewed and analyzed. Results: Twelve PODFs were excised from six male and six female patients (mean age: 35 years) and three CODFs from two male and one female patients (mean age: 11 years). Eight of the 12 PODFs were found on the mandibular gingiva and four on the maxillary gingiva, with the most common site being the mandibular anterior and premolar region (5 cases). Two CODFs were located in the molar region of the mandible and one in the anterior maxilla. Two CODFs showed a mixed lesion and one a radiolucent lesion. -
Skeletal Malocclusion and Genetic Expression: an Evidence
JDSM REVIEW ARTICLES http://dx.doi.org/10.15331/jdsm.5720 Skeletal Malocclusion and Genetic Expression: An Evidence- Based Review Clarice Nishio, DDS, MSc, PhD; Nelly Huynh, PhD Faculty of Dentistry, University of Montreal, Quebec, Canada Altered dentofacial morphology is an important risk factor of obstructive sleep apnea by compromising the upper airway volume. Maxillary and/or mandibular retrognathia, narrow maxilla, and long face are the most common craniofacial risk factors of sleep- disordered breathing. The etiology of dentofacial variation and malocclusion is multifactorial, which includes the influence of genetic and environmental factors acting on the units of the craniofacial complex. There is very little evidence on the reverse relationship, where changes in malocclusion could affect gene expression. The advances in human genetics and molecular biology have contributed to the identification of relevant genetic markers associated with certain skeletal malocclusions and/or dental malformations. Since some studies have observed differences between siblings, between parents/children, and between monozygotic twin pairs, this evidence suggests a significant influence of environmental factors in the development of dentofacial structures. However, the skeletal craniofacial complex has been systematically documented to be more influenced by genetic factors than the dental malocclusion. The greater the genetic component, the lower the rate of success on the outcome of orthodontic treatment. The real therapy should be an eventual modification of the gene responsible for the malocclusion; however, this is yet a theoretical proposition. The identification of major genes and determination of their biochemical action to a particular jaw discrepancy is the first approach necessary for the search of a solution. -
Rwanda Medical Procedure Code Database
Rwanda Medical Procedure Code Database RMP Code Detailed Nomenclature Mapped to local nomenclature Specialty Administrative Sub-classification: A2001 Medical certificate Medical certificate A2002 Medical report Medical report A2003 Medical expertise Medical expertise A2004 Postmortem report Postmortem report A2005 Second opinion Second opinion A2006 Birth certificate Birth certificate A2007 Death certificate Death certificate A2008 Birth certificate [copy] Birth certificate [copy] A2009 Death certificate [copy] Death certificate [copy] A2010 Medical file Medical file A2011 Medical card Medical card A2012 Prescription Prescription A2013 Certificate of physical aptitude Certificate of physical aptitude A2014 Ambulance service per kilometer Ambulance service per kilometer 1 of 285 Rwanda Medical Procedure Code Database RMP Code Detailed Nomenclature Mapped to local nomenclature Specialty Allied professional services Sub-classification: Autism/PDD 82000 psychology health service provided to a child, aged under 13 years, by an eligible psychologist where:[a] the child is Autism/PDD assistance with diagnosis / referred by an eligible practitioner for the purpose of assisting the practitioner with their diagnosis of the child; or[b] the contribution to a treatment plan by psychologist child is referred by an eligible practitioner for the purpose of contributing to the child`s pervasive developmental disorder [pdd] or disability treatment plan, developed by the practitioner; and[c] for a child with pdd, the eligible practitioner is a consultant -
Temporomandibular Joint Dysfunction and Orthognathic Surgery: a Retrospective Study Jean-Pascal Dujoncquoy1, Joël Ferri1, Gwénael Raoul1, Johannes Kleinheinz2*
Dujoncquoy et al. Head & Face Medicine 2010, 6:27 http://www.head-face-med.com/content/6/1/27 HEAD & FACE MEDICINE RESEARCH Open Access Temporomandibular joint dysfunction and orthognathic surgery: a retrospective study Jean-Pascal Dujoncquoy1, Joël Ferri1, Gwénael Raoul1, Johannes Kleinheinz2* Abstract Background: Relations between maxillo-mandibular deformities and TMJ disorders have been the object of different studies in medical literature and there are various opinions concerning the alteration of TMJ dysfunction after orthognathic surgery. The purpose of the present study was to evaluate TMJ disorders changes before and after orthognathic surgery, and to assess the risk of creating new TMJ symptoms on asymptomatic patients. Methods: A questionnaire was sent to 176 patients operated at the Maxillo-Facial Service of the Lille’s2 Universitary Hospital Center (Chairman Pr Joël Ferri) from 01.01.2006 to 01.01.2008. 57 patients (35 females and 22 males), age range from 16 to 65 years old, filled the questionnaire. The prevalence and the results on pain, sounds, clicking, joint locking, limited mouth opening, and tenseness were evaluated comparing different subgroups of patients. Results: TMJ symptoms were significantly reduced after treatment for patients with pre-operative symptoms. The overall subjective treatment outcome was: improvement for 80.0% of patients, no change for 16.4% of patients, and an increase of symptoms for 3.6% of them. Thus, most patients were very satisfied with the results. However the appearance of new onset of TMJ symptoms is common. There was no statistical difference in the prevalence of preoperative TMJ symptoms and on postoperative results in class II compared to class III patients. -
Optical Microscopic, Microradiographic and Scanning Electron Microscopic Observations of Some Dens Invaginatus
Original J. Showa Univ. Dent. Soc. 15: 7-16, 1995 Optical Microscopic, Microradiographic and Scanning Electron Microscopic Observations of Some Dens Invaginatus Tetsuo KODAKAand Shohei HIGASHI SecondDepartment of Oral Anatomy,Showa University School of Dentistry 1-5-8 Hatanodai,Shinagawa-ku, Tokyo, 142 Japan (Chief:Prof. ShoheiHigashi) Abstract: The simple or branched invaginations of dens invaginatus were histologically observed by using 6 ground sections (2 molars and 4 incisors). In all the teeth, the invagina- tions have hypoplastic enamel showing a variable thickness and an irregular outline. The rel- atively thick enamel irregularly arranged the Retzius lines and prismless structures were present in the innermost layers besides the surface layers. In 4 teeth, enamel-free areas were partially found on the dentin surfaces, and afibrillar cementum occasionally covered the enamel-free areas as well as the enamel surfaces. The dentin of a molar tooth had giant tubules between the dichotomously branched invaginations and other giant tubules opened into the invagination floor. Some dentinal tubules in the terminal regions had abnormal structures similar to the Tomes' granules adjacent to the invaginations of the 2 molar teeth. In all the incisor teeth, a seam line of dentin fusion or a slit line succeeding to the dental pulp cavity was present in the dentin under the linguogingival ridge. Thus, the gross formation of dens invaginatus also causes the invagination to form locally abnormal structures, especially in the enamel regions; although some findings have been previously reported. Key words: dens in dente, invagination, prismless enamel, afibrillar cementum, enamel-free area It is strongly suggested that most of the dens lar cementum25) including cementicle-like globular in dente, recently named dens invaginatus, are structures26) on the floors, although the dentin formed by the abnormal infolding of an enamel under the fissures generally shows a normal organ towards the dental papilla during a tooth structure. -
The Art and Science of Shade Matching in Esthetic Implant Dentistry, 275 Chapter 12 Treatment Complications in the Esthetic Zone, 301
FUNDAMENTALS OF ESTHETIC IMPLANT DENTISTRY Abd El Salam El Askary FUNDAMENTALS OF ESTHETIC IMPLANT DENTISTRY FUNDAMENTALS OF ESTHETIC IMPLANT DENTISTRY Abd El Salam El Askary Dr. Abd El Salam El Askary maintains a private practice special- Set in 9.5/12.5 pt Palatino izing in esthetic dentistry in his native Egypt. An experienced cli- by SNP Best-set Typesetter Ltd., Hong Kong nician and researcher, he is also very active on the international Printed and bound by C.O.S. Printers Pte. Ltd. conference circuit and as a lecturer on continuing professional development courses. He also holds the position of Associate For further information on Clinical Professor at the University of Florida, Jacksonville. Blackwell Publishing, visit our website: www.blackwellpublishing.com © 2007 by Blackwell Munksgaard, a Blackwell Publishing Company Disclaimer The contents of this work are intended to further general scientific Editorial Offices: research, understanding, and discussion only and are not intended Blackwell Publishing Professional, and should not be relied upon as recommending or promoting a 2121 State Avenue, Ames, Iowa 50014-8300, USA specific method, diagnosis, or treatment by practitioners for any Tel: +1 515 292 0140 particular patient. The publisher and the editor make no represen- 9600 Garsington Road, Oxford OX4 2DQ tations or warranties with respect to the accuracy or completeness Tel: 01865 776868 of the contents of this work and specifically disclaim all warranties, Blackwell Publishing Asia Pty Ltd, including without limitation any implied -
Mmubn000001 232074720.Pdf
PDF hosted at the Radboud Repository of the Radboud University Nijmegen The following full text is a publisher's version. For additional information about this publication click this link. http://hdl.handle.net/2066/146250 Please be advised that this information was generated on 2021-10-05 and may be subject to change. ORTHODONTIC FORCES AND TOOTH MOVEMENT J .J . G . M . Pilon Omslag: Clemens Briels / beeldend kunstenaar Acryl op linnen Formaat: 30 χ 40 cm ORTHODONTIC FORCES AND TOOTH MOVEMENT An experimental study in beagle dogs ISBN 90-9009878-Х ORTHODONTIC FORCES AND TOOTH MOVEMENT An experimental study in beagle dogs Een wetenschappelijke proeve op het gebied van de Medische Wetenschappen. PROEFSCHRIFT ter verkrijging van de graad van doctor aan de Katholieke Universiteit Nijmegen, volgens besluit van het College van Decanen in het openbaar te verdedigen op dinsdag 1 oktober 1996 des namiddags om 3.30 uur precies door Johannes Jacobus Gertrudis María Pilon geboren 12 juni 1959 te Geleen 1996 Druk: ICG printing b.v., Dordrecht Promotor Prof.dr. A.M. Kuijpers-Jagtman Copromotor Dr. J.C. Maltha Manuscriptcommissie Prof.dr. H.H. Renggli Prof.dr. N.H.J. Creugers Prof.dr. R. Huiskes Deze studie werd verricht bij de vakgroep Orthodontie en Orale Biologie (hoofd: Prof.dr. A.M. Kuijpers-Jagtman) van de Katholieke Universiteit Nijmegen. Dit onderzoek was onderdeel van hoofdprogramma VI "Orale Aandoeningen en Steunweefselziekten". Contents Chapter 1 General introduction 13 Chapter 2 Force degradation of orthodontic elastics 23 Submitted to the European Journal of Orthodontics, 1996. Chapter 3 Spontaneous tooth movement following extraction of mandibular third premolars in beagle dogs 39 Chapter 4 Magnitude of orthodontic forces and rate of bodily tooth movement, an experimental study in beagle dogs 49 Published in the American Journal of Orthodontics and Dentofacial Orthopedics (1996) 110: 16-23. -
Periodontal Considerations in Orthodontic Treatment
Review Article DOI: 10.18231/2455-6785.2017.0004 Periodontal considerations in orthodontic treatment Vasu Kumar1,*, Vijayta Yadav2, Mani Dwivedi3, Kusum Lata Agarwal4, Saquib Ahmad Asrar5 1,3,4,5PG Student, 2Senior Lecturer, Dept. of Orthodontics, Career PG Institute of Dental Sciences, Uttar Pradesh *Corresponding Author: Email: [email protected] Abstract Harmonious cooperation of the general dentist, the periodontist and the orthodontist offers great possibilities for the treatment of combined orthodontic–periodontal problems. Orthodontic treatment along with patient’s compliance and absence of periodontal inflammation can provide satisfactory results without causing irreversible damage to periodontal tissues. Orthodontic treatment carries with it the risks of tissue damage, treatment failure and an increased predisposition to dental disorders. The dentist must be aware of these risks in order to help the patient make a fully informed choice whether to proceed with orthodontic treatment. The aim of this study is to discuss the principles of orthodontic treatment in patients with reduced periodontium, its indications and limitations, as well as current views concerning retention of orthodontic result. Keywords: Periodontal tissues, Retention, Periodontium, Orthodontics Introduction a. The occurrence of any previous periodontal disease Certain malocclusion traits are associated with b. Drug history, e.g. use of long-term corticosteroids, difficulties in maintaining good oral hygiene and as a phenytoin, etc. consequence to poor periodontal condition.(1) c. Systemic diseases or physiological conditions, e.g. Therefore, proper alignment of the teeth provided by pregnancy, diabetes, asthma, chronic renal failure, orthodontic treatment may promote good control of soft etc. deposit and calculus and subsequent periodontal inflammation. It has been known that orthodontic Clinical Examination: appliances have been a local etiologic factor Check for the following: contributing to periodontal problems. -
Pragmatic Trial Design Considerations: the PRECIS-2 Framework
Pragmatic Trial Design Considerations: The PRECIS-2 Framework Elaine H. Morrato, DrPH MPH Associate Professor, Health Systems, Management and Policy Associate Dean for Public Health Practice Director, Pragmatic Trials and Dissemination-Implementation Research, Colorado Clinical & Translational Sciences Institute Duke Industry Statistics Symposium 2017 | Are Pragmatic Clinical Trials Ready for Prime Time? September 7, 2017 1 Objectives • Review PRECIS-2, a framework for pragmatic trial design & reporting • Apply the PRECIS-2 framework to an example of designing a Phase IIIb drug trial 2 A randomized controlled trial to inform decisions about practice & real-world effectiveness PRAGMATIC TRIALS Review Article The Changing Face of Clinical Trials No clinical trial is completely explanatory or pragmatic. Trials exist on a continuum. Efficacy Effectiveness Explanatory Trial Pragmatic Trial Can an intervention work Does the intervention work under ideal conditions? under real-world conditions? 4 PRagmatic-Explanatory Continuum Indicator Summary (PRECIS-2) 1 = very explanatory 5 = very pragmatic https://crs.dundee.ac.uk/precis BMJ 2015;350:h2147 5 Case Application: Effectiveness of site-specific antibiotic treatment for periodontal disease Actisite® (tetracycline periodontal) periodontal fiber 6 7 Good pragmatic trial research requires stakeholder engagement • To produce information that is meaningful and useful in practice, we must understand priorities and needs from the perspective of patients and other stakeholders • Patient- and stakeholder-centered