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Author: Donald J. Timms
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 152
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
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Book Description
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.
Author: Donald J. Timms
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 152
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Book Description
Author: Jae Hyun Park
Publisher: John Wiley & Sons
ISBN: 1119513472
Category : Medical
Languages : en
Pages : 816
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Book Description
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.
Author: Chad R. Sears
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
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Book Description
Author: Nikoo Habibnia
Publisher:
ISBN:
Category : Maxillary expansion
Languages : en
Pages : 0
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Book Description
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.
Author: James K. Dillehay
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Boyu Pan
Publisher:
ISBN:
Category : Maxillary expansion
Languages : en
Pages : 0
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Book Description
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.
Author: Abdul Latif Hamdan
Publisher: Springer Nature
ISBN: 3030691098
Category : Medical
Languages : en
Pages : 213
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Book Description
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.
Author: Ian Calder
Publisher: Cambridge University Press
ISBN: 9781841101583
Category : Medical
Languages : en
Pages : 230
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Book Description
Like other titles in the Core Topics series, this book provides an easy-to-read introduction to this important topic that will be of value to a wide spectrum of healthcare professionals including anaesthetists, intensivists, ODPs, theatre and recovery nurses. Concise but comprehensive chapters from experts in the field cover everything from basic anatomy, physiology and applied physics, through the various methods of maintaining the airway under anaesthesia (supraglottic devices, tracheal intubation, tubes/cuffs, endobronchial and double-lumen tubes) to the problem airway (obstruction by infection, tumour or a foreign body, ENT and maxillo-facial surgery, aspiration, obstetrics, trauma, cervical spine disease, intensive care, the 'lost' airway, extubation and recovery), the paediatric airway, disinfection and cleaning of equipment and finally morbidity, mortality and medico-legal issues. 'Real' clinical scenarios, with patient management questions and model answers, are included throughout the book to bring to life some of the key problems encountered in day-to-day practice.
Author: William Clark
Publisher: JP Medical Ltd
ISBN: 9351523144
Category : Medical
Languages : en
Pages : 580
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Book Description
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
