A Continuing Study of Occlusal Changes Occurring in Post-treatment Orthodontic Patients PDF Download

Author: Jeran Joe Hooten
Publisher:
ISBN:
Category :
Languages : en
Pages : 122

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Author: Veronica M. Toro
Publisher:
ISBN:
Category :
Languages : en
Pages : 47

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Introduction: The purpose of the study was to measure the post-treatment changes in the inter-occlusal space one month and three months after comprehensive orthodontic treatment: settling. 3D images acquired during retention were used. The effects of the patients’ demographics and retention protocols on settling were analyzed. Methods: Consecutively finished orthodontic patients were invited to participate in the study. Intraoral scans were obtained at debond, 1-month and 3-months after debond. A 3D Software was used to evaluate the inter-occlusal changes between the upper and lower teeth in a range of distance of -0.6mm to 2mm. A heat map of the surface area was created. Two main categories and six subgroups of height distance were created. The dental arch was also divided into anterior and posterior segments. The changes in the Total Surface Area within Range, area for each category, anterior and posterior portions, the differences between occlusal coverage and no occlusal coverage retainers, age, and gender were compared at all time points. Results: 90 patients were enrolled in the study. The Total Surface Area within Range increased in the first month. The surface area of teeth in the -0.6mm to 0.25mm category stayed constant while the 0.25mm to 2mm range also increased. Similar changes were seen from 1 month to 3 months, but were not statistically significant. The same pattern was observed for the anterior and posterior segments. The increase in occlusal contacts was found in the group of patients wearing retainers without occlusal coverage. In patients wearing retainers with occlusal coverage, the changes were not statistically significant. Gender did not show a correlation with inter-occlusal changes after orthodontic treatment. Adolescents showed a statistically significant increase in Total Surface Area within Range and 0.25mm to 2mm category, while Adults did not. However, there is no statistically significant difference between them. Conclusions: During the first month after the removal of orthodontic appliances, patients show an increase in the total occlusal surface area. This increase is primarily from changes in the inter-occlusal space between teeth that have more than 0.25 mm distance between the upper and lower dentition. The contact surface area of teeth within the -0.6mm to 0.25mm range between the upper and lower teeth remains constant over the three-month period. Anterior and posterior teeth exhibit similar changes throughout the 3-month period. Retainers without occlusal coverage allow changes in the inter-occlusal contacts, while retainers with occlusal coverage do not. A bigger sample size is needed to confirm a relationship with age.

Author: Dyer Kenneth
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659660849
Category :
Languages : en
Pages : 352

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A major challenge in orthodontics is to provide a treatment result that remains stable after appliances are removed. Orthodontic treatment can move teeth from their neutral positions, which increases potential for future relapse. The literature from the University of Washington, Seattle, shows that relapse is pervasive and of considerable magnitude (Little RM. Stability and relapse of mandibular anterior alignment: University of Washington studies. Semin Orthod 1999;5:191-204). The intent of this study was to quantify the posttreatment dental changes that occurred over approximately a quarter century in a cohort of women who had received comprehensive orthodontic treatment as teenagers.

Author: Gabriela Aragon-Meyer
Publisher:
ISBN:
Category :
Languages : en
Pages : 59

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The purpose of this study was to determine differences in occlusal contact area amongst Class I and Class II malocclusions and to determine and compare how orthodontic treatment modifies the occlusal contact areas. The influence of age, gender, initial type of malocclusion, final occlusal classification and type of treatment (extraction vs. non-extraction) was evaluated. This retrospective study included consecutively treated patients from the Graduate Orthodontic Clinic of the University of Washington, who started treatment between January 2017 and June 2019, and were de-bonded by January 29th of 2021. Intraoral scans were obtained pretreatment and immediately after completing orthodontic treatment. A 3D metrology software was used to evaluate occlusal contact areas and interocclusal distances in the 0.25 to -1.25 mm range. Heat maps of the surface area were created, and the areas were recorded for the total surface area of the dental arch as well as for the anterior and posterior segments. The differences in occlusal contacts and interocclusal spaces between the different malocclusion groups, differences due to age, gender, extractions, and time in treatment were analyzed. Occlusal contacts were also compared to initial and final PAR scores. 96 patients were included in this study. Areas of tight, near and approximating contacts reduce significantly due to orthodontic treatment, while areas of open and no contact increase. Age and gender did not have an effect in the overall change of occlusal contacts. There were pretreatment and pre-post treatment differences between subjects with initial Class I and Class II malocclusions. Subjects who received extractions of maxillary premolars have the least amount of posttreatment tight +near+ approximating contacts. After Orthodontic treatment, occlusal contact tends to decrease, several factors influence the amount of contact decrease and the posttreatment amount of occlusal contacts.

Author: Farhad B. Naini
Publisher: John Wiley & Sons
ISBN: 1118817591
Category : Medical
Languages : en
Pages : 484

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Preadjusted Edgewise Fixed Orthodontic Appliances Explore the possibilities of preadjusted edgewise appliances in orthodontics with this essential resource Preadjusted Edgewise Fixed Orthodontic Appliances: Principles and Practice comprehensively covers the increasingly popular preadjusted edgewise technique in orthodontics. The book integrates clinical practice and research findings, focusing on the biomechanics and clinical management of patients with preadjusted edgewise appliances. A unique learning resource for specialists and trainees in orthodontics, the book is highly illustrated and broad in scope, covering everything from informed patient consent to clinical techniques to information about how to manage patient malocclusions. Core topics include: A thorough introduction to the principles of treatment planning, orthodontic biomechanics, anchorage, informed patient consent, and the dentolegal aspects of orthodontic treatment An exploration of the preadjusted edgewise appliance, including bracket design, bracket placement, orthodontic bonding and debonding, archwires, mini-implants (TADs) and auxiliaries Comprehensive description of the stages of treatment with preadjusted edgewise appliances, including alignment and levelling, controlled space closure, finishing and retention Information on the management of the major malocclusions (Class II, Class III, anterior open bite, deep overbite and transverse problems) with preadjusted edgewise appliances Perfect for postgraduate dentists undergoing specialist training in orthodontics, specialist practitioners, and hospital consultant orthodontists, Preadjusted Edgewise Fixed Orthodontic Appliances: Principles and Practice will also be useful to dentists with a special interest in orthodontics, orthodontic therapists, and orthodontic nurses who seek a comprehensive manual of the most popular fixed orthodontic appliance technique.

Author: Lee W. Graber
Publisher: Elsevier Health Sciences
ISBN: 0323444326
Category : Medical
Languages : en
Pages : 928

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Comprehensive, cutting-edge content prepares you for today’s orthodontics! Orthodontics: Current Principles and Techniques, 6th Edition provides evidence-based coverage of orthodontic diagnosis, planning strategies, and treatment protocols, including esthetics, genetics, temporary anchorage devices, aligners, technology-assisted biomechanics, and much more. New to this edition is an Expert Consult website using videos and additional visuals to show concepts difficult to explain with words alone. Expert Consult also adds three online-only chapters, research updates, and a fully searchable version of the text. From respected editors Lee Graber, Robert Vanarsdall, Katherine Vig, and Greg Huang, along with a veritable Who’s Who of expert contributors, this classic reference has a concise, no-nonsense approach to treatment that makes it the go-to book for orthodontic residents and practitioners! Comprehensive coverage provides a one-stop resource for the field of orthodontics, including foundational theory and the latest on the materials and techniques used in today’s practice. Experienced, renowned editors lead a team of expert, international contributors, bringing the most authoritative clinical practice and supporting science from the best and brightest in the industry. More than 3,400 images include a mixture of radiographs, full-color clinical photos, and anatomic or schematic line drawings, showing examples of treatment, techniques, and outcomes. Extensive references make it easy to look up the latest in orthodontic research and evidence-based information, and all references also appear online. Detailed, illustrated case studies show the decision-making process, showing the consequences of various treatment techniques over time. NEW! Seven all-new chapters include Orthodontic Diagnosis and Treatment Planning with Cone-Beam Computed Tomography Imaging; Upper Airway, Cranial Morphology, and Sleep Apnea; Management of Impactions; Iatrogenic Effects of Orthodontic Appliances; Minimally and Non-Invasive Approaches to Accelerate Tooth Movement; Management of Dental Luxation and Avulsion Injuries in the Permanent Dentition; and Patient Management and Motivation for the Child and Adolescent Patient. NEW! Expert Consult website includes online-only chapters, instructional videos, many references linked to PubMed, and research updates including additional case studies. UPDATED CHAPTERS include Biomechanical Considerations with Temporary Anchorage Devices, Bonding in Orthodontics, Clear Aligner Treatment, Lingual Appliance Treatment, Psychological Aspects of Diagnosis and Treatment, Clinically Relevant Aspects of Dental Materials Science in Orthodontics, The Biologic Basis of Orthodontics, and more. New co-editor Greg J. Huang is joined by new contributors who are highly regarded experts within their respective subspecialties in orthodontics.

Author: William R. Proffit
Publisher: Elsevier Health Sciences
ISBN: 032329152X
Category : Medical
Languages : en
Pages : 768

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Now in full color, Contemporary Orthodontics, 5th Edition is a practical resource with a long tradition of excellence. Line drawings and more than 1,000 new color images illustrate concepts more clearly than ever. This book includes detailed information on diagnosis, treatment planning concepts, related problems or controversies, and current treatment procedures, including the role of orthodontics in comprehensive treatment of patients with multiple problems. Updated material on psychosocial problems in orthodontic treatment, oral function, and the relationship between injury and dental disease. Case studies throughout the text highlight the demand for orthodontic treatment, the etiology of orthodontic problems, and treatment planning for cleft lip and palate patients. NEW! Review of the contemporary applications of 3D imaging in both diagnosis and evaluation of treatment. NEW! Updated information on Temporary Anchorage Devices (TADs) and miniplates. NEW! The latest advances in the biology of orthodontic treatment, including new ways to accelerate orthodontic tooth movement and the continuing evolution of improved fixed appliances. NEW! Over 200 new figures to illustrate new concepts and procedures.

Author: Man Zhang
Publisher: Open Dissertation Press
ISBN: 9781361438077
Category :
Languages : en
Pages :

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This dissertation, "Changes in Children's Oral Health Related Quality of Life Following Orthodontic Treatment" by Man, Zhang, 張漫, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled CHANGES IN CHILDREN'S ORAL HEALTH RELATED QUALITY OF LIFE FOLLOWING ORTHODONTIC TREATMENT Submitted by ZHANG MAN For the degree of Doctor of Philosophy at The University of Hong Kong in September 2007 Malocclusion is a common oral disorder and the demand for orthodontic care is increasing among children. There is a dearth of information as to how malocclusion and its treatment impacts on the life quality of children, which has obvious implications in assessing orthodontic treatment need and evaluating outcomes from orthodontic care. This prospective longitudinal study was conducted to identify associations between orthodontic treatment need and child oral health-related quality of life (COHQoL); to determine the level of agreement between parents' and children's perceptions of COHQoL; to determine changes in COHQoL as a result of undergoing fixed orthodontic appliance therapy and to determine changes in COHQoL following orthodontic treatment. Children (aged 11-14) seeking orthodontic treatment were recruited in this study and followed-up over a three year period. Children's parents were also recruited at baseline. Children self-completed the Child Perceptions Questionnaire (CPQ) at baseline (pre-treatment status and expectations of treatment), during orthodontic treatment (at one week, one month, three months, six months, twelve months, and eighteen months after insertion of fixed appliance), and 6-months post-treatment. Their parents completed the Parental Perception Questionnaire (PPQ) and Family Impact scale (FIS) prior to treatment. Children's pretreatment occlusal models were assessed by three commonly used occlusal indices: Index of Orthodontic Treatment Need (IOTN) including Aesthetic Components (AC) and Dental Health Components (DHC), Index of Complexity, Outcome and Need (ICON) and the Dental Aesthetic Index (DAI). Improvements in occlusion following orthodontic treatment was determined by assessing differences in ICON scores obtained from pre- and post- treatment orthodontic casts. CPQ scores and AC scores were significant correlated (r=0.27, p0.05). FIS scores were significantly correlated with scores of ICON (r= 0.26, pDuring orthodontic treatment significant changes in CPQ scores occurred (pThere was significant reduction in CPQ scores 6-months following orthodontic treatment compared to pre-treatment (p0.05). Perceived improvement in oral health was associated with improvement in COHQoL (reduction in CPQ scores) a

Author: vinita boloor
Publisher: GRIN Verlag
ISBN: 3656445710
Category : Medical
Languages : en
Pages : 105

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Literature Review from the year 2004 in the subject Medicine - Dentistry, Rajiv Gandhi University (A B shetty memorial institute of dental sciences), course: master of dental surgery, language: English, abstract: Team work is the essence for the success of any venture. A multidisciplinary approach is often necessary to treat and prevent dental problems in a patient. Orthodontics and periodontics are interrelated in a variety of ways. Orthodontic treatment is based on the principle that if prolonged pressure is applied to a tooth, tooth movement will occur as the bone around the tooth remodels. Bone is selectively removed in same areas and added in others. In essence, the tooth moves through the bone carrying its attachment apparatus with it, as the socket of the tooth migrates. Since the bony response is mediated by the periodontal ligament, tooth movement is primarily a periodontal ligament phenomenon. Orthodontic tooth movement, which is the basis of the orthodontic treatment, is possible because of the inherent nature of the periodontium. Many advances have been made in understanding the mechanisms involved in the process of tooth movement. However, there are many pathologic conditions affecting the periodontium which may affect these mechanisms of tooth movement and alter the end result of the orthodontic treatment. Similarly awareness of the pathologic changes or other undesirable changes which can occur in the periodontium as a result of ideal or less than ideal orthodontic procedures would help in better treatment procedure and management of the patients. Altered tooth position may affect periodontal health. Placement of orthodontic appliances causes microbiological changes as well as changes in the periodontium. With the success, in the recent decades of the fixed multi banded appliance, orthodontic treatment in adults has continuously grown in the United States and Europe. It is in connection with adult orthodontics that periodontal factors are becoming more important to the orthodontist. Orthodontics in the adult patient, specially the periodontally compromised patient requires adequate periodontal considerations to maintain the periodontium in a healthy condition during and after treatment. Minor periodontal surgery may be required to prevent relapse after orthodontic treatment. In addition, since periodontal diseases can secondarily cause malocclusion, very often orthodontic treatment would be an essential adjunct if the periodontal therapy is to succeed.

Author: Birte Melsen
Publisher: John Wiley & Sons
ISBN: 1405136197
Category : Medical
Languages : en
Pages : 407

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This is a major new work dedicated to the increasingly prominent area of adult orthodontics. Written by renowned contributors from the orthodontic community and beyond, and compiled by a world-class editor, it provides an authoritative resource on the subject, marrying together clinical guidance with a thorough evaluation of the evidence base. The opening chapters provide the context for adult orthodontics, including patient demographics and aetiology, and the book goes on to detail treatment planning considerations, including patient case profiles, suggesting initial outcomes and longer term expectations. Interdisciplinary and multidisciplinary approaches are discussed, including the links between adult orthodontics and periodontics, prosthetics and temporomandibular disorders. The book is accompanied by a website containing further examples of case studies and a wealth of clinical images. Set to become the gold standard resource on the subject, this book will be invaluable to all those providing orthodontic treatment to adults and those dealing with orthodontics as part of the inter-disciplinary management of the adult dentition. KEY FEATURES • A major new work on an expanding area of orthodontic treatment • Covers patient demographics, aetiology, treatment planning and maintenance issues • Includes case studies, suggesting realistic and optimal short and long term outcomes • Highly illustrated with full colour clinical photos • Accompanied by a website with further material: www.wiley.com/go/melsen