Download or read book A Cephalometric and Model Analysis of Mandibular Incisor Relapse Tendencies in Posttreated Class II Division 1 Cases written by Robert D. Scott and published by . This book was released on 1974 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analysis of Relapse of Lower Incisor Alignment and Its Relationship to Mandibular Growth Rotation in Class II Division 1 Malocclusion written by Kok Liang Tan and published by . This book was released on 1993 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Cephalometric Analysis of the Positional Relationship of the Mandibular Central Incisor in Class I and Class II Division 1 written by Leo J. Groth and published by . This book was released on 1958 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Analysis of Adolescents with Severe Class II Division 1 Malocclusions Treated Surgically and Non surgically written by Patrick P. Brady and published by . This book was released on 2016 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: Class II Division 1 malocclusions are characterized by a retrusive mandible and prominent upper incisors. Despite Class II malocclusions being one of the most frequently treated cases in orthodontists' office, there is no uniform consensus in the orthodontic community on the best treatment modality and biomechanical approach to use in treating patients with Class II malocclusions. Purpose: This paper examines the end-of-treatment outcomes of severe Class II Division I malocclusion patients treated with surgical versus non-surgical approaches. Study Design: This is a retrospective study of consecutively treated severe Class II Division I patients at the University of Iowa. Initial and deband lateral cephalometric radiographs were compared between 45 non-surgical and 21 surgical patients. All patients that were debanded between the ages of 13 to 19 years were included. Multivariable regression analyses were used to examine differences in outcomes between treatment groups. Results: Following adjustment for patient level confounders (age, gender, and race), those treated surgically had better end of treatment cephalometric outcomes. Those treated surgically had a more balanced skeletal profile, greater reduction in overjet, and improvement in ANB angle (p
Download or read book A Multivariate Cephalometric Study of Class II Division 2 Malocclusion written by David Lloyd Wells and published by . This book was released on 1970 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cephalometric Evaluation of Incisor Stability in Class II Division 1 Malocclusion written by Uraiwan Krunganjana and published by . This book was released on 1992 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cephalometric Analysis of Posttreatment Changes in Class Ii Division 1 Patients Treated in Either One Or Two Phases written by Lisamarie O. Brazeau and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The soft and hard tissues were evaluated by analysis of various angular and linear changes. The differences were examined using the Kruskal-Wallis statistical method with significance levels set at p
Download or read book Open Bite Malocclusion written by Guilherme Janson and published by John Wiley & Sons. This book was released on 2013-10-29 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Open-Bite Malocclusion: Treatment and Stability presents the etiology, treatment, and its stability of anterior open bite malocclusion in the early, mixed, and permanent dentitions. Special emphasis is devoted to orthodontic treatment and its stability in the permanent dentition because this is the time when treatment of open bite presents greater relapse. Appropriate for clinicians, orthodontic residents, and dental students, Open-Bite Malocclusion covers the most simple treatment approaches to the most complex, from orthodontic devices to tooth extraction to surgery. Unique to this book is the discussion of post-treatment stability. Drs. Janson and Valarelli highlight the post-treatment changes and presents strategies to increase treatment stability. This allows the clinician to be able to predict the stability probabilities when treating anterior open bite malocclusions in the permanent dentition either with or without extraction, orthodontic-surgical therapy, or with occlusal adjustment.
Download or read book An Evaluation of Post treatment Cephalometric Changes of Orthodontically Treated Patients with Clockwise Mandibular Rotation written by Luis E. Arroyo and published by . This book was released on 1982 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changes to Incisor Anteroposterior Angulation During Correction of Class II Malocclusion written by Long Dao Tieu and published by . This book was released on 2014 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: When camouflaging Class II malocclusions, there are often changes to both the maxillary and mandibular incisor angulations that can lead to artificial elongation and/or foreshortening of the dental image. OIEARR is a common result of orthodontic treatment and given the inherent limitations of 2D radiography, it would be beneficial to better understand how changes of tooth angulation can alter the perceived root lengths. With this knowledge, clinicians may be better equipped at recognizing cases of true root resorption as opposed to cases where the appearance of root resorption on the radiograph is due to an imaging foreshortening. This information can help clinicians identify teeth that need further imaging (periapical) to confirm/assess severity of root resorption and will also allow clinicians to make modifications to their treatment in an attempt to minimize the progression of root resorption. Research Question 1. Critically evaluate incisor OIEARR in patients undergoing non-surgical treatment of Class II Division I malocclusion by systematic review of the published data. a.Current evidence suggests comprehensive orthodontic treatment to correct Class II malocclusion results in increased prevalence of OIEARR, however given the fact that there was no RCT and only limited prospective data included in this SR, the findings should be considered with caution. i.Prevalence ranged between 65.6%-98.1% ii.OIEARR -Per patient -- 65.6%-98.1% iii.OIEARR - Per tooth -- 72.9%-94.2% iv.Majority of teeth experienced mild-moderate resorption with severe resorption being reported to be between 6.25-17.2% v.No Sex difference was reported vi.No evidence that either the Mx CI or LI more susceptible to RR vii.Weak to moderate positive correlation between Tx duration and RR viii.Weak to moderate positive correlation between AP apical displacement and RR 2. What is the prevalence of OIEARR over the course of treatment in a selected sample of patients treated with either the X-bow for Forsus? a.Prevalence per tooth 65.3% b.Prevalence per patient 98.6% 3.What is the severity of OIEARR over the course of treatment in a selected sample of patients treated with either X-bow for Forsus? a.Per tooth -- None (34.7%); Mild (45.2%); Moderate (9.3%); Severe (11%) b.Per patient -- None (1.4%), Mild (32.9%); Moderate (30%); Severe (35.7%) 4.Are the incisor length measurements determined from panoramic radiographs accurate and reliable when maxillary and mandibular incisor angulations are modified in a custom made typodont? a.Under experimental conditions, Md incisors appear to respond as expected when compared to theoretical model (assumption -- teeth within focal trough) i.10 degrees -- 1.4% shorter ii.20 degrees -- 6.3% shorter iii. 30 degrees -- 13.4% shorter iv.40 degrees -- 23.7% shorter v.50 degrees -- 34.6% shorter b.Mx Incisors are more difficult to say. At some angulations yes (80, 90), at others (50,60, 70, 100, 110) the answer isn't clear c.Severe Resorption in clinical study was found in 11% of treated incisors and of the 25 patients with at least one tooth with severe RR, 20 of the cases were found on the Md arch 5. When several cephalometric variables are considered simulataneously over time, does sex and or treatment type affect the final outcome in a selected sample of patients treated with either X-bow or Forsus? a.No evidence of a Sex (p=0.840) difference in the overall pattern of cephalometric variables. b.No Evidence of a treatment type (p=0.395) difference in the overall pattern of cephalometric variables. c.Convincing evidence of a Time (p=0.006) difference in the overall pattern of cephalometric variables. d.Convincing evidence (p=0.019) that over the course of treatment OB was reduced by 1.79mm [1.66,1.92]. e.Convincing evidence (p=0.015) that over the course of treatment Y-Axis increased 1.3° [1.24,1.33]. 6.Additional Findings a.Shorter treatment length (p=0.037) with X-bow (24.18 months) compared to Forsus (30.17 months) b.Both compliance free Class II correction protocols (X-bow and Forsus) for the treatment of mild to moderate class II malocclusion appear to generate similar degrees of lower incisor proclination with similar variability. It appears than that foreshortening of the image on a panoramic radiograph due to proclination of lower incisors accounts for a small part, and the larger reason maybe due to the difficulties of accurately measuring the teeth due to distortion caused by the narrow focal trough size or superimposition.
Download or read book A Cephalometric Study of the Stability of Mandibular Incisors in Relation to the Supported Alveolar Bone in Class I and Class II Division 1 written by Mauricio Novoa and published by . This book was released on 1963 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Cephalometric Analysis of the Central Incisor 1st Premolar and 2nd Premolar as Related to Line of Occlusion in Class I and Class II Division 1 written by William G. Schmidt and published by . This book was released on 1953 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of Post retention Mandibular Incisor Irregularity in Treated Class II Division I Malocclusions Versus Untreated Class I normals written by Bruce Victor Freeman and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Cephalometric Study of Relationships of the Maxillary and Mandibular Central Incisors of Children Having Excellent Occlusion and Class II Division 1 Malocclusion written by Richard Olney Failor and published by . This book was released on 1954 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Cephalometric Evaluation of Maxillary Incisor Influence on the Position of the Upper Lip in Class II Division 1 Extraction Cases and Non Treated Control Cases written by Donald Glenn Elitt and published by . This book was released on 1975 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cephalometric Evaluation of Incisor Stability in Class II Division 2 Malocclusion written by Ming-Guey Tseng and published by . This book was released on 1992 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
