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Changes In The Pharyngeal Airway Associated With Rapid Maxillary Expansion
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Book Synopsis Changes in the Pharyngeal Airway Associated with Rapid Maxillary Expansion by :
Download or read book Changes in the Pharyngeal Airway Associated with Rapid Maxillary Expansion written by and published by . This book was released on 2008 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixty orthodontics patients treated with fixed orthodontics were divided into two study groups. The experimental group (n = 30) required maxillary expansion to correct the deficiency in the palatal, and the control group (n = 30) had fixed orthodontic treatment only. Subjects age, gender, predominant mode of breathing, length of treatment and initial and final measurements of upper and lower pharyngeal airway were recorded. Results using Student t-test showed that age and gender were no statistically significant difference between the two groups (p = 0.2810). Mouth breathers distribution showed no statistically significant difference between the two groups (p = 0.7866). Upper pharyngeal airway increased an additional 0.77 mm in the expansion group which was statistically significant (Student's t-test, t = 2.492), while the lower pharyngeal airway showed no statistically significant difference (Student's t-test t = 1.041). In conclusion rapid maxillary expansion during orthodontic treatment had a positive affect on the upper pharyngeal airway, with no significant change on the lower airway.
Book Synopsis Rapid Maxillary Expansion by : Donald J. Timms
Download or read book Rapid Maxillary Expansion written by Donald J. Timms and published by . This book was released on 1981 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Temporary Anchorage Devices in Clinical Orthodontics by : Jae Hyun Park
Download or read book Temporary Anchorage Devices in Clinical Orthodontics written by Jae Hyun Park and published by John Wiley & Sons. This book was released on 2020-04-21 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the latest information on all aspects of using temporary anchorage devices in clinical orthodontics, from diagnosis and treatment planning to appliances and applications Written by some of the world’s leading experts in orthodontics, Temporary Anchorage Devices in Clinical Orthodontics is a comprehensive, up-to-date reference that covers all aspects of temporary anchorage device (TAD) use in contemporary orthodontics. Taking a real-world approach to the subject, it covers topics ranging from diagnosis and treatment planning to the many applications and management of complications. Case studies demonstrate the concepts, and high-quality clinical photographs support the text throughout. The book begins with an overview of clinical applications and fundamental principles of TADs. It then goes on to cover biomechanical considerations for controlling target tooth movement with TADs. Biomechanical simulations for various clinical scenarios treated with TADs are addressed next, followed by an examination of histological aspects during the healing process and anatomical considerations with TADs. Other chapters cover: Class II Correction with TADs, Distalization with TADs, TAD-anchored Maxillary Protraction, Maxillary Expansion with TADs, Anterior Open Bite Correction with TADs, TAD-assisted Aligner Therapy, TADs vs. Orthognathic Surgery; Legal Considerations When Using TADs; and much more. Provides evidence-based information on the use of TADs, with a focus on improving outcomes for patients Considers topics ranging from diagnosis and treatment planning to specific clinical applications and appliances Takes a real-world clinical approach, with case studies demonstrating concepts Written by international experts in the field Presents hundreds of high-quality clinical photographs to support the text Temporary Anchorage Devices in Clinical Orthodontics is an essential resource for orthodontists and orthodontic residents.
Book Synopsis Effects of Rapid Maxillary Expansion on Upper Airway by : Yoon Hwan Chang
Download or read book Effects of Rapid Maxillary Expansion on Upper Airway written by Yoon Hwan Chang and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to use cone-beam computed tomography (CBCT) to assess changes in the volume and cross sectional areas of the upper airway in children with maxillary constriction treated by rapid maxillary expansion (RME). The study group consisted of 5 males and 9 females with mean age of 12.93 years with posterior cross bite and constricted maxilla who were treated with hyrax expander as part of their comprehensive orthodontic treatment. Pre and post RME CBCT scans were analyzed with 3D Dolphin 11.0 software to measure the retropalatal (RP) and retroglossal (RG) airway changes including volume and cross sectional areas. The transverse width changes were evaluated from the maxillary inter 1st molar and inter 1st pre molar mid lingual alveolar plate points. Pre and post RME scans were compared with paired t test and Pearson correlation test was done on data reaching significance. Only the cross sectional airway measured at posterior nasal spine (PNS) to Basion (Ba) level showed a statistically significant increase (P=0.0004). The minimal cross sectional area (MCA) was always found within the RP airway. The inter-molar and inter-premolar mid lingual alveolar plate distances increased equally by 4.76 mm and were statistically significant (P
Book Synopsis Measuring Airway Changes After Treatment with the Maxillary Skeletal Expander Using Three Dimension Cone Beam Computed Tomography and Computational Fluid Dynamic Analysis by : Zachary Philip Hollander
Download or read book Measuring Airway Changes After Treatment with the Maxillary Skeletal Expander Using Three Dimension Cone Beam Computed Tomography and Computational Fluid Dynamic Analysis written by Zachary Philip Hollander and published by . This book was released on 2021 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transverse maxillary deficiency is a common skeletal malocclusion that is diagnosed when the maxilla is narrow in relation to the mandible. The malocclusion develops during growth and usually does not correct without treatment. Some health problems thought to be associated with a narrow maxilla include narrowing of the pharyngeal airway and the nasal cavity and increased nasal resistance. In short, problems that make it more difficult to breath. Adult patients seeking an alternative to surgical expansion can now turn to bone-borne expanders utilizing Temporary Anchorage Devices (TADs) such as the maxillary skeletal expander (MSE) which is able to orthopedically expand the maxilla transversely at any age. A preliminary study performed at UCLA suggested that patients treated with MSE had improvement in airway volume and airflow immediately following expansion. This study investigated the effects of MSE on airway improvement using three-dimensional cone beamed computed tomography (CBCT) to measure volume changes in the upper airway and a computational fluid dynamic model (CFD) to evaluate the changes in airflow for sixteen patients at the UCLA Orthodontics Clinic at two timepoints: pre-expansion (T0) and post-expansion (T1). Treatment with the MSE caused a statistically significant increase in the volume of the airway after expansion as compared with the control group. Furthermore, CFD analysis showed that treatment with the MSE caused a statistically significant reduction in the airway resistance. The airway resistance of the MSE group was no longer statistically different from the control group after expansion. There was no correlation between the volume increase and the decrease in airway resistance. Overall, there was a significant increase in total airway volume, oropharyngeal volume, nasopharyngeal volume, and nasal cavity volume with MSE treatment immediately after expansion, but there was no correlation between volume increase and the improvement in breathing metrics, namely airway resistance. These results suggest that treatment of maxillary constriction using the MSE appliance may show positive effects in improvement of the upper airway volumes and reduction of the upper airway resistance.
Book Synopsis Pharyngeal Airway Changes After Orthognathic Surgery as Assessed by Conebeam Computed Tomography by : Chad R. Sears
Download or read book Pharyngeal Airway Changes After Orthognathic Surgery as Assessed by Conebeam Computed Tomography written by Chad R. Sears and published by . This book was released on 2006 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Upper Airway Functional and Dentofacial Changes During Non-surgical Maxillary Expansion in Adults by : Nikoo Habibnia
Download or read book Analysis of Upper Airway Functional and Dentofacial Changes During Non-surgical Maxillary Expansion in Adults written by Nikoo Habibnia and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: This analysis is part of an ongoing retrospective secondary pilot study on a randomized clinical trial. The purpose of this research project was to evaluate the effect of none-surgical maxillary expansion techniques on upper airway dimension and function, and skeletal and dental changes, using two different maxillary expanders: Moon and Dresden expanders. Methods: A sample of thirteen patients were randomly allocated to either group A or group B. Patients in group A (N=5) received orthodontic treatment using an appliance called Dresden expander. Patients in group B (N=8) received orthodontic treatment using the Moon expander. Two sets of records were taken for each patient; before starting treatment (T0) and after maxillary expansion completed (T1). Records consisted of the following: clinical charting and diagnostic exams, intra-oral and extraoral photos, cone beam computer tomography (CBCT), nasal obstruction symptom evaluation (NOSE) questionnaires, and peak nasal inspiratory flow (PNIF). The changes on the upper airway dimension and function were evaluated using CBCT scans (using Dolphin software), PNIF (objective measurement), and NOSE questionnaire (subjective measure). The skeletal and dental changes were evaluated using various skeletal and dental landmarks in CBCT using Avizo software. For upper airway changes and skeletal and dental changes, one-way repeated measure mixed ANOVA tests and paired sample t-tests were conducted. Results: For upper airway changes, from T0 to T1, no statistically significant differences were found between the Moon and the Dresden expander groups for nasopharynx volume (NPV), oropharynx volume (OPV), oropharynx minimal cross-sectional area (OPMCA), PNIF with both nostrils (PNIFBN), PNIF with left nostril blocked (PNIFLB), and PNIF with right nostril blocked (PNIFRB), and NOSE questionnaires. Also, both expanders showed to have no significant effect on upper airway dimensions and function. For skeletal and dental changes, Moon expander resulted in buccal displacement of pulp chamber of tooth # 1.6, 2.6, and 2.4 (p0.05). Conclusion: The effect of microimplant-assisted rapid palatal expansion (MARPE) appliances on upper airway dimension and function in adults is yet to be determined and future randomized controlled clinical trial studies with larger sample size are needed. In terms of skeletal and dental changes, the only statistically significant change was in the Moon expander group in transverse (X) direction for pulp chamber of upper first molars and upper left first premolar. However, such changes may not be clinically significant. No significant differences were found between the two appliance designs in this analysis.
Book Synopsis Orthodontic and Orthopedic Treatment in the Mixed Dentition by : James A. McNamara
Download or read book Orthodontic and Orthopedic Treatment in the Mixed Dentition written by James A. McNamara and published by . This book was released on 1993 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Changes in Pharyngeal Airway Dimensions Due to MARA Treatment in Class II Malocclusions by : James K. Dillehay
Download or read book Changes in Pharyngeal Airway Dimensions Due to MARA Treatment in Class II Malocclusions written by James K. Dillehay and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Upper Arch Expansion by Clear Aligners on Nasal Airway Volume in Children and Adults by : Boyu Pan
Download or read book The Effect of Upper Arch Expansion by Clear Aligners on Nasal Airway Volume in Children and Adults written by Boyu Pan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Obstructive sleep apnea (OSA) affects more than 900 million people around the world (Benjafield et al., 2019). OSA occurs due to obstruction of the airway at different levels of the airway, including upper and lower pharyngeal constrictions due to narrow upper jaw and underdeveloped/backward positioned lower jaw. Treatment modalities of OSA include active oxygen infusion, oral appliances or surgical expansion of the upper arch and/or surgical advancement of the lower and upper jaws; however, these modalities have many challenges and complications (Benjafield et al., 2019; American Academy of Sleep Medicine, 2015; Schwengel et al., 2014; Yaggi et al., 2005). Previous research has shown that rapid maxillary expansion can improve the nasal airway, thereby improving OSA (Peppard et al., 2000; Cordasco et al., 2012; Mônego Moreira et al., 2017). Orthodontic appliances such as clear aligners can be used for slow maxillary expansion; however, the effect of this type of treatment on both the nasal airway volume and morphology has not been investigated. Therefore, the objective of this study was to investigate the effect of clear aligners on the nasal airway volume and morphology of pediatric patients undergoing maxillary expansion. In addition, a pilot study was conducted to investigate the effect of clear aligners on the volume of the nasal airway in adults. We conducted a retrospective study on 13 pediatric patients (ages 6-13 years old). These patients had treatment of their malocclusion using clear aligners and their treatment involved upper arch expansion as well as initial and after treatment CBCTs (Cone Beam Computed Tomography) as part of their routine orthodontic records. We set up a control group of 8 children (7-12 years) without clear aligner treatment but having two CBCTs. Based on the treatment and control groups, we investigated whether pediatric patients treated with clear aligners had a significant increase in upper arch expansion and nasal airway volume and morphology. Secondly, we conducted a retrospective pilot study to investigate the effect of upper arch expansion using clear aligners in the adult population. We studied 6 adults (31-52 years) who were treated with clear aligners for maxillary expansion. The results showed a significant increase in nasal airway volume as well as intermolar distance in the treatment group of pediatric patients, but not in the control group. No correlation was found between the changes in intermolar distance and nasal airway volume in the treatment group. In the adult population, the results suggest a trend of increased nasal airway volume after maxillary expansion with clear aligners, however, the results were not statistically significant. Further study with an increased sample size may confirm the suggested trends. This work provides a method to investigate changes in nasal airway volume and morphology and demonstrates the potential for slow maxillary expansion with clear aligners to improve nasal airway parameters. This suggests that such treatment may be a possible solution to improve outcomes for OSA patients.
Book Synopsis Dentofacial Anomalies by : Abdul Latif Hamdan
Download or read book Dentofacial Anomalies written by Abdul Latif Hamdan and published by Springer Nature. This book was released on 2021-04-30 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an eloquent review of the anatomy and physiology of phonation, the work-up of patients with voice disorders, basic evaluation of wind instrument performance and dysfunction, and a full description of the most common skeletal and non-skeletal dentofacial anomalies, including their means of diagnosis and treatment. This is followed by a comprehensive review of literature on the vocal and acoustic features of affected patients, as well as the special considerations in wind instrumentalists. The effect of orthodontic therapy/ orthognathic surgery on voice, associated upper airway changes, and wind instruments performance is emphasized. The information provided in this book will heighten the patients’, therapists’, teachers’ and physicians’ awareness of the vocal characteristics and wind instrumentalists concerns often associated with these conditions. Dentofacial Anomalies: Implications for Voice and Wind Instrument Performance is addressed to otolaryngologists, laryngologists, speech-language pathologists, voice teachers, professional voice users, wind instrumentalists, instrument teachers, arts medicine physicians, physical therapists, orthodontists and other dentists, as well as members of the general public who are concerned about their voices and or wind instrument playing.
Book Synopsis Core Topics in Airway Management by : Ian Calder
Download or read book Core Topics in Airway Management written by Ian Calder and published by Cambridge University Press. This book was released on 2010-12-16 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every anaesthetist reaches the end of their career with a collection of difficult airway experiences. Managing airway challenges relies on a combination of good clinical practice, knowledge of relevant basic sciences and critical evaluation of every aspect of airway care. This new edition of Core Topics in Airway Management provides any trainee or consultant involved in airway techniques with practical, clinically relevant coverage of the core skills and knowledge required to manage airways in a wide variety of patients and clinical settings. All new procedures and equipment are reviewed, and detailed chapters advise on airway issues in a range of surgical procedures. This edition also contains a series of practical questions and answers, enabling the reader to evaluate their knowledge. Written by leading airway experts with decades of experience managing difficult airways, Core Topics in Airway Management, 2nd edition is an invaluable tool for anaesthetists, intensivists, and emergency physicians.
Book Synopsis Craniofacial 3D Imaging by : Onur Kadioglu
Download or read book Craniofacial 3D Imaging written by Onur Kadioglu and published by Springer. This book was released on 2019-01-28 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed to serve as an up-to-date reference on the use of cone-beam computed tomography for the purpose of 3D imaging of the craniofacial complex. The focus is in particular on the ways in which craniofacial 3D imaging changes how we think about conventional diagnosis and treatment planning and on its clinical applications within orthodontics and oral and maxillofacial surgery. Emphasis is placed on the value of 3D imaging in visualizing the limits of the alveolar bone, the airways, and the temporomandibular joints and the consequences for treatment planning and execution. The book will equip readers with the knowledge required in order to apply and interpret 3D imaging to the benefit of patients. All of the authors have been carefully selected on the basis of their expertise in the field. In describing current thinking on the merits of 3D craniofacial imaging, they draw both on the available scientific literature and on their own translational research findings.
Book Synopsis Twin Block Functional Therapy by : William Clark
Download or read book Twin Block Functional Therapy written by William Clark and published by JP Medical Ltd. This book was released on 2014-09-30 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twin Block appliances are simple bite blocks that are designed for full-time wear. They achieve rapid functional correction of malocclusion (misalignment of upper and lower teeth) by the transmission of favourable occlusal forces to occlusal inclined planes that cover the posterior teeth. The forces of occlusion are used as the functional mechanism to correct the malocclusion (www.twinblocks.com). Beginning with an introduction to orthodontics and twin blocks, the next chapters describe growth studies and diagnosis and treatment planning. Each of the following sections discusses the use of twin blocks for different types of malocclusion. With a focus on the latest developments in functional therapy, the book offers guidance on diagnosis, treatment planning, case selection, appliance design and clinical management. Written by the internationally recognised Orthodontist William Clark from Fife, UK, who also invented Twin Blocks, this comprehensive guide includes nearly 600 clinical photographs and illustrations. Key points Comprehensive guide to use of Twin Blocks in treatment of malocclusion Focus on latest developments in functional therapy Written by UK-based inventor of Twin Blocks Includes nearly 600 images and illustrations
Book Synopsis Paranasal Sinuses Anatomy and Conditions by : Balwant Singh Gendeh
Download or read book Paranasal Sinuses Anatomy and Conditions written by Balwant Singh Gendeh and published by BoD – Books on Demand. This book was released on 2022-04-28 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses selected topics on the anatomy of paranasal sinuses and related conditions, providing insight into advancements in the field. The first section covers morphological aspects of the maxillary sinus, infectious causes of acute and chronic sinusitis, posterior ethmoidal artery, and paranasal sinuses anatomy and anatomical variations. The second section covers sinonasal-associated midfacial expansion and maxillary sinus in dental implantology. Chapters present new clinical and research developments as well as future perspectives on ever-expanding upper airway and jaw problems.
Book Synopsis Cone Beam Computed Tomography in Orthodontics by : Sunil D. Kapila
Download or read book Cone Beam Computed Tomography in Orthodontics written by Sunil D. Kapila and published by John Wiley & Sons. This book was released on 2014-08-29 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its introduction to dentistry, cone beam computed tomography (CBCT) has undergone a rapid evolution and considerable integration into orthodontics. However, despite the increasing popularity of CBCT and progress in applying it to clinical orthodontics, the profession has lacked a cohesive, comprehensive and objective reference that provides clinicians with the background needed to utilize this technology optimally for treating their patients. Cone Beam Computed Tomography in Orthodontics provides timely, impartial, and state-of-the-art information on the indications and protocols for CBCT imaging in orthodontics, clinical insights gained from these images, and innovations driven by these insights. As such, it is the most current and authoritative textbook on CBCT in orthodontics. Cone Beam Computed Tomography in Orthodontics is organized to progress sequentially through specific topics so as to build the knowledgebase logically in this important and rapidly evolving field. Part I provides the foundational information on CBCT technology, including radiation exposure and risks, and future evolutions in computed tomography. Part II presents the Principles and Protocols for CBCT Imaging in Orthodontics, focusing on developing evidence-based criteria for CBCT imaging, the medico-legal implications of CBCT to the professional and the protocols and integration of this technology in orthodontic practice. Part III provides critical information on CBCT-based Diagnosis and Treatment Planning that includes how to interpret CBCT scans, identify incidental pathologies and the possible other uses of this technology. Part IV covers practical aspects of CBCT’s Clinical Applications and Treatment Outcomes that encompasses a range of topics, including root morphology and position, treatment of impacted teeth, virtual surgical treatment planning and outcomes, and more.
Book Synopsis Sleep Apnea and Snoring by : Michael Friedman, MD
Download or read book Sleep Apnea and Snoring written by Michael Friedman, MD and published by Elsevier Health Sciences. This book was released on 2008-10-30 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finally, a multi-disciplinary approach that covers both the surgical and non-surgical interventions for sleep apnea and snoring. From the editor of Operative Techniques in Otolaryngology, this new reference will quickly become the standard in surgery for this key area within otolaryngology. ., Full-color line drawings illustrate key concepts and create a comprehensive way of learning surgical techniques. Provides consistent, templated chapters and a contemporary, full-color format for quick, easy access to the most up-to-date surgical and non surgical interventions for sleep apnea and snoring. Includes contributions from leaders in neurology, pulmonology, psychiatry, otolaryngology, and oral & maxillofacial surgery. to create a truly multi-disciplinary approach. Covers new and innovative procedures including ZPP (Zeta palatopharyngoplasty), Transpalatal Advancement Pharyngoplasty and Minimally invasive submucosal glossectomy Details when and why surgery is necessary, and how to perform a successful operation for snoring and sleep apnea.
