Bite force and dental status
The Journal of Clinical Pediatric Dentistry Volume 28, Number 2/2004 139
INTRODUCTION
V
arious techniques have been used to clinically
evaluate the physiological characteristics of the
muscles of mastication.
One method is to
measure the bite force.
Bite force is exerted by the jaw
elevator muscles and is...
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Bite force and dental status The Journal of Clinical Pediatric Dentistry Volume 28, Number 2/2004 139 INTRODUCTION V arious techniques have been used to clinically evaluate the physiological characteristics of the muscles of mastication. One method is to measure the bite force. Bite force is exerted by the jaw elevator muscles and is regulated by the nervous, muscular, skeletal, and dental systems. 1 Maximum bite force is related to the health of the masticatory system, and it is believed that the stronger the bite force, the better the system. 2,3 Helkimo et al. 4 observed the bite force of a population between the ages of 15 and 65 years, and found that variation in bite force with dental status was obvious, and that those with complete dentition had a much greater bite force. Maximum bite force assessed unilaterally may be used as a simple indicator of mandibular elevator muscle strength as a whole. 5 Since reduced strength is an important factor in overload and hyperactivity of
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Fernández-Bozal J: Fotografía digital: ventajas e inconvenientes 335
Rev Esp Ortod 2004;34:335-41
Fotografía digital
Fotografía digital:
ventajas e inconvenientes
JAVIER FERNÁNDEZ-BOZAL
73
Esta nueva serie de artículos pretende dar respuesta a las preguntas mas frecuentes sobre fotografía digital que se plantean los...
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Fernández-Bozal J: Fotografía digital: ventajas e inconvenientes 335 Rev Esp Ortod 2004;34:335-41 Fotografía digital Fotografía digital: ventajas e inconvenientes JAVIER FERNÁNDEZ-BOZAL 73 Esta nueva serie de artículos pretende dar respuesta a las preguntas mas frecuentes sobre fotografía digital que se plantean los ortodoncistas: que máquina me compró, que complementos necesito, como hago las fotos, como las guardo y las recupero, etc. En las primeras entregas es necesario exponer los fundamentos teóricos imprescindibles, a continuación se tratarán cuestiones mas prácticas. INTRODUCCIÓN Se puede situar el origen de la fotografía entre los años 1830 y 1840, cuando William Fox Talbot, en Inglaterra, y Nicéphore Niépce y Louis Daguerre, en Francia, obtuvieron las primeras imágenes permanentes en una cámara oscura por acción directa de la luz. Desde entonces se han producido múltiples innovaciones técnicas en este campo, pero ninguna de ellas ha supuesto un cambio tan radical como la a
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Publiée le 17 Sept. 2010
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The effects of periradicular inflamation
The Journal of Clinical Pediatric Dentistry Volume 29, Number 3/2005 193
INTRODUCTION
P
rimary teeth and the permanent successors must
be understood as interdependent units, where
each one of them interacts with and depends
upon the other.
This relationship can be altered by
mechanical...
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The effects of periradicular inflamation The Journal of Clinical Pediatric Dentistry Volume 29, Number 3/2005 193 INTRODUCTION P rimary teeth and the permanent successors must be understood as interdependent units, where each one of them interacts with and depends upon the other. This relationship can be altered by mechanical traumas or as a consequence of dental decay lesions. The homeostasis loss from this unit impacts on the tooth and the surrounding tissues, to different degrees of intensity. The pulpal inflammation / infection of a primary tooth and the spread of this condition to the periradicular tissues can lead to alterations in the dental germ of the permanent successor and to the surrounding structures, if no therapy is done, i. e. endodontics or extraction. However, alterations that have already occurred in the germ cannot be recovered, regardless of the type of the treatment performed. 3, 7, 14 Endodontic treatment is the last clinical resort in
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CLASSIC ARTICLE
Fundamentals of extracoronal tooth preparation.
Part I.
Retention
and resistance form
Dennis B.
Gilboe, DDS,a
and Walter R.
Teteruck, DDS, MSDb
College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
The differential selection and application of retention and resistance form in tooth...
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CLASSIC ARTICLE Fundamentals of extracoronal tooth preparation. Part I. Retention and resistance form Dennis B. Gilboe, DDS,a and Walter R. Teteruck, DDS, MSDb College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada The differential selection and application of retention and resistance form in tooth preparation depend upon the individual clinical situation. Since the ‘‘textbook ideal’’ is not often encountered clinically, knowledge of basic principles and factors is mandatory for the successful preparation of extracoronal restorations. Black1 astutely recognized and stressed the importance of these two basic characteristics. He stated: ‘‘Resistance form is that shape given to a cavity intended to afford such a seat for the filling as will best enable it to withstand the stress brought upon it in mastication. Retention form is the provision for preventing it from being dislodged. ’’ More recent concepts tend to emphasize the duplication of a preconceived
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96 J Orofac Orthop 2010 · No.
2 © Urban & Vogel
Journal of Orofacial Orthopedics
Fortschritte der Kieferorthopädie Review Article
Malocclusion,Mastication and the Gastrointestinal
System
A Review
Dysgnathie,Mastikation undVerdauungsapparat
Ein Überblick
Peter Proff1
Abstract
The relationship between malocclusion and the...
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96 J Orofac Orthop 2010 · No. 2 © Urban & Vogel Journal of Orofacial Orthopedics Fortschritte der Kieferorthopädie Review Article Malocclusion,Mastication and the Gastrointestinal System A Review Dysgnathie,Mastikation undVerdauungsapparat Ein Überblick Peter Proff1 Abstract The relationship between malocclusion and the gastrointestinal system has only been examined occasionally, while several pertinent studies have addressed the chewing function as a functional link between oral structures and the gastrointestinal tract. Following an overview of the physiological masticatory process, the available evidence regarding associations among dental status, chewing function and gastrointestinal disorders are summarized. Finally, a review of the relationships between orthodontic deformities and mastication is presented. Key Words: Malocclusion · Dentofacial deformities · Masticatory efficiency · Digestion · Gastrointestinal tract · Gastrointestinal disorders Zusammenfassung Die Zusammenhän
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Pages: 67
Lectures: 53 779
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EJOwww.
ejo.
oxfordjournals.
org
European Journal of
Orthodontics
Volume 32 | Number 2 | April 2010
ISSN 0141-5387 (print)
ISSN 1460-2210 (online)
Par Drceph
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Publiée le 29 Mars 2010
Pages: 121
Lectures: 2 689
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REVIEW ARTICLE
Bisphosphonates treatment and
orthodontic considerations
AA Ghoneima
ES Allam
SL Zunt
LJ Windsor
Authors affiliations:
A.
A.
Ghoneima, Department of
Orthodontics, Al-Azhar University Faculty of
Dental Medicine, Cairo, Egypt
E.
S.
Allam, L.
J.
Windsor, Department of Oral
Biology, Indiana University School of...
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REVIEW ARTICLE Bisphosphonates treatment and orthodontic considerations AA Ghoneima ES Allam SL Zunt LJ Windsor Authors affiliations: A. A. Ghoneima, Department of Orthodontics, Al-Azhar University Faculty of Dental Medicine, Cairo, Egypt E. S. Allam, L. J. Windsor, Department of Oral Biology, Indiana University School of Dentistry, Indianapolis, IN, USA S. L. Zunt, Department of Oral Pathology, Medicine and Radiology, Indiana University School of Dentistry, Indianapolis, IN, USA Correspondence to: L. Jack Windsor Department of Oral Biology Indiana University School of Dentistry 1121 West Michigan Street, DS 271 Indianapolis, IN 46202 USA E-mail: ljwindso@iupui. edu Abstract Authors – Ghoneima AA, Allam ES, Zunt SL, Windsor LJ Currently, the use of oral and systemic forms of bisphosphonates is increasing dramatically in a large group of patients either in the form of anti-osteoporosis medications or as a part of a chemotherapeutic regimen for several malignant diseases. As adult
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Publiée le 17 Mars 2010
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European Journal of Orthodontics 32 (2010) 1–5 © The Author 2009.
Published by Oxford University Press on behalf of the European Orthodontic Society.
doi:10.
1093/ejo/cjp061 All rights reserved.
For permissions, please email: journals.
permissions@oxfordjournals.
org
Advance Access publication 14 October 2009
Introduction
Relapse...
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European Journal of Orthodontics 32 (2010) 1–5 © The Author 2009. Published by Oxford University Press on behalf of the European Orthodontic Society. doi:10. 1093/ejo/cjp061 All rights reserved. For permissions, please email: journals. permissions@oxfordjournals. org Advance Access publication 14 October 2009 Introduction Relapse has been defined as a return of teeth to their original position or a shift in arch relationship at the end of treatment. The aetiology of relapse is multifactorial and can be divided into three main areas: physiological recovery, unfavourable growth, or ‘true relapse’ due to the placement of the teeth in an unstable position. Relapse is also subject to individual variation. Reitan (1967) showed that the periodontal ligament takes 232 days to reorganize and can derotate teeth after 1 year. The periodontal ligament requires 3–4 months’masticatory stimulation for the organization of its fibres. In addition, research has shown that alveolar bone is laid dow
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Lectures: 665
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