Download or read book A Cephalometric Appraisal of Class II Functional Appliance Therapy written by William T. Mahon and published by . This book was released on 1982 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Cephalometric Evaluation of Two stage Class II Treatment written by Mesou Lai and published by . This book was released on 1995 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Herbst Appliance written by Hans Pancherz and published by Quintessence Publishing (IL). This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a research-based book on the clinical use of the Herbst appliance in the management of Class 2 malocclusions. Different clinical problems and questions are addressed in the light of the corresponding research existing. Thus, in contrast to other Class 2 alternative treatments, the Herbst appliance approach is based on scientific research.

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

Download or read book Cephalometric Changes Observed Following Long Term Use of the Bimler Functional Appliance in Class II Division 1 Malocclusions written by and published by . This book was released on 2008 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bimler appliance is one of many functional appliances developed during the evolution of functional orthodontics and is still used to treat patients today. Dr. Bimler was a firm believer that functional appliances should treat the patient to their individual limits of adaptability, and treating beyond this adaptability was an invitation for future relapse. The goal of this study was to evaluate cephalometric changes observed in Class II division 1 patients who received long-term therapy utilizing the Bimler appliance. Twenty-five patients (15 females and 10 males) for inclusion in this study were drawn from records donated to the University at Buffalo School of Dental Medicine from the practice of the late HP Bimler in Wiesbaden, Germany. All patients showed Class II division 1 malocclusions at the start of treatment, were treated solely using the Bimler appliance for an extended treatment period, and had initial, progress, and final cephalometric radiographs available. Each radiograph was digitized and traced by a single operator utilizing the Dolphin Imaging System, and a cephalometric analysis was completed. From the results, it would appear that saggital correction in Class II division 1 cases was achieved mainly via dental changes, with only a minor contribution by changes in skeletal relationships. Treatment effects of the Bimler appliance showed statistically significant changes from baseline (P0.05) for all measures except FMA, interincisal angle, and Wits. The decrease in overjet was achieved both by a significant uprighting of the maxillary incisors ( -6.04) and flaring (proclination) of the lower incisors (4.956) over the entire treatment period. Significantly larger effects were seen during the initial treatment period (T1-T2) compared to the later treatment period (T2-T3) for ANB, ANS-Me, U1-SN, and L1-MP (p0.05). These measures accounted for most of the treatment effect of the appliance that could not be attributed to normal growth alone. Results from this study suggests that clinicians who utilize the Bimler appliance to treat Class II division 1 cases should expect to see a majority of the correction during the first 24 months of treatment, and should expect diminished treatment effects should the therapy continue significantly beyond that point.

Download or read book Cephalometric Appraisal of Changes in Class II Skeletal Patterns Orthodontic Treatment written by Paul Barrett Risk and published by . This book was released on 1967 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Orthodontic Cephalometry written by Athanasios E. Athanasiou and published by Mosby. This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the theoretical basis of cephalometric radiography, methodology, limitations and sources or error, using radiographs and line diagrams. Orofacial anatomy and pathology, clinical applications and possible complications are also covered by the text, and case histories are presented.

Download or read book Orthodontic Management of Class II Malocclusion written by Martyn T. Cobourne and published by Springer Nature. This book was released on with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Functional Appliance Therapy and Upper Airway Dimensions written by Min Gu and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Functional Appliance Therapy and Upper Airway Dimensions" by Min, Gu, 辜岷, 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: The aim of this study was to investigate the effects of functional appliance therapy on the upper airway dimensions of Chinese children. Firstly, associations between craniofacial characteristics and daytime sleepiness (a symptom of sleep disordered breathing [SDB]) were identified in an orthodontic clinic. The extra- and intra-oral craniofacial characteristics, and a self-completed Paediatric Daytime Sleepiness Scale were recorded in a group of 265 Chinese adolescents aged 11-17 years. The data demonstrated that a bilateral Class II molar relationship, increased overjet, hypertrophic tonsils and a relatively large tongue were positively associated with daytime sleepiness. The results implied that Class II malocclusion was a risk factor of SDB. Secondly, to derive upper airway cephalometric norms for Chinese children, lateral cephalograms of 425 randomly selected 12-year-old Chinese children from 10 schools in Hong Kong were used to establish sex-specific cephalometric norms for the upper airway. Ethnic and age differences were determined by comparing the norms with the results of 108 12-year-old Caucasian children and 74 Chinese adults, respectively. Thirdly, a retrospective study was conducted to investigate the effects of Herbst appliance therapy on the upper airway of different sexes. Pre- and post-treatment lateral cephalograms from 44 Herbst-treated adolescents were analysed. Longitudinal cephalometric data of 34 untreated adolescents were used as growth data for comparison. The results indicated that Herbst appliance therapy enlarged the upper airway dimensions at two different levels for girls and boys with Class II malocclusion. For girls, it was the retroglossal oropharynx, and for boys, it was the hypopharynx. The boys displayed a significantly greater increase in the anterior and posterior facial heights than the girls, potentially accounting for the level dissimilarities. Furthermore, the Herbst appliance improved the inclination of the soft palate and restricted growth of the nasopharynx in both the boys and girls. Finally, a randomised controlled trial was carried out to investigate changes in the upper airway dimensions and the sleep-related breathing disordered (SRBD) scale following functional appliance therapy. Twenty-six adolescents with Class II malocclusion were randomised to receive either Herbst or Twin Block appliance therapy. Lateral cephalograms, magnetic resonance imaging, and parents-completed 22-item SRBD scale were obtained at baseline and after functional appliance treatment. The results indicated that increases in upper airway dimensions - width, depth and area - were observed for most parameters and several reached statistical significance by one year of combined growth and functional appliance therapy. In addition, improvements in sleep-related behaviour were evident and significantly correlated with airway dimension changes. The significant difference between the effects of the Herbst and Twin Block appliances was only significant in lower anterior facial height, but not in upper airway structures. In conclusion, the results demonstrated that Class II malocclusion is associated with the paediatric SDB; and that both Herbst and Twin Block appliance therapies can increase the upper airway dimensions and improve the sleep-related breathing. Subjects: Orthodontic appliances Airway (Medicine) Malocclusion - Treatment

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.

Download or read book Treatment Effects of the Twin Block Functional Appliance and the Mandibular Anterior Repositioning Appliance MARA in Patients with Class II Malocclusions written by Eva-Maria Moll and published by . This book was released on 2012 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: AbstractIntroduction: Class II malocclusions represent one of the most prevalent forms of malocclusion encountered in routine orthodontic practice. In order to correct a Class II malocclusion, miscellaneous orthopedic functional appliances with a broad spectrum of diverse appliance designs have been continuously developed. While the Twin Block is known as one of the best researched functional appliances, only few studies have evaluated the treatment efficacy of the Mandibular Anterior Repositioning Appliance (MARA) since its development in 1991. Thus, the purpose of this retrospective study was to evaluate and compare the skeletal and dentoalveolar effects of the Twin-block and the Mandibular Anterior Repositioning Appliance (MARA) in the treatment of adolescent patients with Class II malocclusions compared to controls. Materials and Methods: The present retrospective study was carried out on three samples: a Twin Block sample, a MARA sample, and a control sample.^The study was based on the evaluation of the lateral cephalometric radiographs of a total of 96 cases at T1 (pre-functional treatment), as well as at T2 (post-functional treatment/ equivalent timeframe in controls). The Twin Block sample with 37 cases represented the largest sample, consisting of 24 females and 13 males. It was treated by the inventor Dr. Clark in his private practice in Fife, Scotland, UK. The average age for the Twin Block group at T1 is 11 years of age. The MARA group consisted of a total of 34 cases: 16 females and 18 males. The average age of the MARA sample at T1 was consistent with the Twin Block sample (11 years of age). The MARA sample was respectively treated by its inventor Dr. Toll, Bad Soden, Germany. The control group was based on 25 cases (12 female and 13 male) obtained from the Michigan growth study. The untreated control group was matched to the MARA sample.^Lateral cephalometric radiographs were taken at the beginning of treatment (T1) and post-functional treatment (T2). Cephalometric changes were evaluated using the Clark analysis including 27 measurements. The MARA, and the control sample were evaluated by an independent commercial company, Rocky Mountain Data Systems, using Joe Ceph by Rocky Mountain Orthodontics. The Twin-Block sample was analyzed by Dr. Clark using Quick CephTM. Results: The results showed that sagittal correction of Class II appeared to be mainly achieved by dental changes, being accompanied by skeletal adaptation. A positive influence of the position of point Pogonion could be achieved in both groups resulting in a considerable decrease of the facial convexity. Skeletal alterations that contributed to skeletal adapations mainly took place in the mandibular ramus, while these changes were significant different form the controls.^No significant alteration of the mandibular plane angle could be determined in all three groups. The current study showed a lower incisors flaring of 5. 47 degree with the MARA appliance and 2. 11 degree with the Twin Block. The effects on the upper incisors varied between the two functional appliances. Slight protrusion of the upper incisors took place with the MARA (+5. 06 degree) and a significant retroclination occurred with the Twin Block ( -12. 42 degree). Accordingly, the interincisal angle decreased in the Twin Block sample and increased on the other hand with the MARA. No significant change of the incisor position of the controls was present. Incisor overjet decreased of about 7. 03 mm in the Twin Block group and 2. 46 mm in the MARA sample. Incisor overbite decreased about 1. 34 mm with the Twin Block and 2. 92 mm with the MARA. Molar relation was corrected in both functional groups resulting in a Class I relation, while no change appeared in the control sample.^While a slight distalizing effect on the upper first molars could be seen in the Twin Block sample ( -0. 06 mm), no such effect could be determined for the MARA appliance (+0. 96 mm). Conclusion: Both appliances resulted in a Class I relationship. Skeletal changes were very similar in both appliances. Overall the Twin Block seemed to be slightly superior to the MARA appliance. Key words: Fixed functional appliance; Twin Block; MARA; Class II malocclusion; Clark analysis.

Download or read book Class II Treatment written by Fedon A. Livieratos and published by . This book was released on 1993 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Evaluation of Cephalometric Changes in Patients Treated with an Activator Appliance written by John G. Clinthorne and published by . This book was released on 1983 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Removable Orthodontic Appliances written by K. G. Isaacson and published by Butterworth-Heinemann. This book was released on 2002 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: An undergraduate text on removable orthodontic appliances written by three leading authorities in the field.

Download or read book Treatment Effects of the Forsus Fatigue Resistance Device and Twin Block Appliance in Patients with Class II Malocclusions written by Abdulfatah Hanoun and published by . This book was released on 2013 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: Class II malocclusions are of interest to the practicing orthodontists because they constitute a significant percentage of the cases they treat. Over the years, a substantial number of approaches and appliances had been developed for Class II malocclusion treatment. The concept of fixed functional appliance such as Forsus appliance was suggested as an option to overcome the lack of compliance with some patients. Many studies were published about Twin Block but only few studies have evaluated the treatment effects of the Forsus Appliance. Objectives: This study will evaluate the effects of the Forsus appliance in comparison with Twin Block appliance and a non-treated control group for the treatment of Class II malocclusion. Methods: The present retrospective study was carried out on three groups: Twin Block group (37 subjects, mean age 11. 2 Y), Forsus group (30 subjects, mean age 12. 9 Y), and a non-treated control group (25 subjects, mean age 12. 6 Y). The study was based on the evaluation of the lateral cephalometric radiographs of pre-treatment, as well as at T2 (posts appliance removal/ equivalent timeframe in controls. Cephalometric changes were evaluated using the Clark analysis including 27 measurements. Results: The results showed that sagittal correction of Class II appeared to be mainly achieved by dentoalveolar change changes only in Forsus group. The Twin Block appliance therapy was able to induce both skeletal and dentoalveolar changes. A favourable influence on the facial convexity could be achieved in both groups. In the Twin Block group, skeletal alterations that contributed to skeletal correction mainly took place in the mandibular ramus, while these changes were significant different form the controls. The effects on the upper incisors varied between the two functional appliances. Large significant upper incisors retroclination occurred with the Twin Block ( -12. 42 degree) while - 4℗ʻ only observed in Forsus group. The lower incisors were proclined slightly more in Forsus than Twin Block group. No significant change of the incisor position of the controls was present. Incisor overjet reduction was larger in amount in Twin Block (7. 03 mm) and 4 mm in the Forsus group. The overjet correction was about 60% of the initial overjet in both experimental groups. Molar relation was corrected in both functional groups resulting in a Class I relation, while no change appeared in the control sample.

Download or read book Long term Treatment Effects of the FR 2 Appliance of Fr nkel written by David C. Freeman and published by . This book was released on 2007 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cephalometric Evaluation of Activator Treatment written by Charles W. Carey and published by . This book was released on 1975 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: