A Retrospective Evaluation of the Effectiveness of the Invisalign Appliance Using the PAR and Irregularity Indices [microform] PDF Download
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Author: Michael Kamatovic
Publisher: Library and Archives Canada = Bibliothèque et Archives Canada
ISBN: 9780612953178
Category :
Languages : en
Pages : 234
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Book Description
InvisalignRTM (Align Technologies Inc., Santa Clara, CA) has recently (1999) been offered correct malocclusions. Few studies have evaluated the capabilities of this appliance. Forty-four cases were studied for comparison of pre- and post treatment results. These cases were mainly mild to moderate Class I malocclusions. Cases were measured according to the PAR (Peer Assessment Rating) and Little's Irregularity Index. The Invisalign RTM appliance improved the overall PAR score (p
![A Retrospective Evaluation of the Effectiveness of the Invisalign Appliance Using the PAR and Irregularity Indices [microform] PDF](https://books.google.com/books/content/images/frontcover/H3yEtgAACAAJ?fife=w80-h100)
Author: Michael Kamatovic
Publisher: Library and Archives Canada = Bibliothèque et Archives Canada
ISBN: 9780612953178
Category :
Languages : en
Pages : 234
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Book Description
InvisalignRTM (Align Technologies Inc., Santa Clara, CA) has recently (1999) been offered correct malocclusions. Few studies have evaluated the capabilities of this appliance. Forty-four cases were studied for comparison of pre- and post treatment results. These cases were mainly mild to moderate Class I malocclusions. Cases were measured according to the PAR (Peer Assessment Rating) and Little's Irregularity Index. The Invisalign RTM appliance improved the overall PAR score (p
Author: Jiafeng Gu
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Book Description
Introduction: The purpose of this retrospective case-control study was to compare the treatment effectiveness and efficiency of the Invisalign system and conventional fixed appliances in treating orthodontic patients with mild to moderate malocclusion in a graduate orthodontic clinic. Methods: Using the peer assessment rating (PAR) index, we evaluated pretreatment and posttreatment records of 48 Invisalign patients and 48 fixed appliances patients. Those two groups of patients were controlled for general characteristics and initial severity of malocclusion. We analyzed treatment outcome, duration and improvement between the Invisalign and fixed appliances groups. Results: The average pretreatment PAR score (United Kingdom weighting) was 20.81 for Invisalign and 22.79 for fixed appliances (P = 1.0000). Posttreatment weighted PAR scores between Invisalign and fixed appliances were not statistically different (P = 0.7420). On average, Invisalign finished 5.7 months faster than fixed appliances (P = 0.0040). The weighted PAR score reduction with treatment was not statistically different between the Invisalign and fixed appliances groups (P = 0.4573). All cases in both groups had more than 30% reduction in PAR score. Logistic regression analysis indicates the odds of achieving "great improvement" in Invisalign group was only 0.329 times the odds of achieving “great improvement” in the fixed appliances group after controlling for age (P = 0.0150). Conclusions: Our data show that both Invisalign and fixed appliances were able to improve the malocclusion. Invisalign finished treatment faster than fixed appliances. However, it appears that Invisalign may not be as effective as fixed appliances in achieving "great improvement" in the malocclusion. This study might help clinicians to determine appropriate cases for Invisalign treatment.
Author: Mary M. Griffith
Publisher:
ISBN:
Category : Orthodontics
Languages : en
Pages : 50
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Book Description
Objectives: This study aimed to establish if there is a significant difference in effectiveness between two generations of Invisalign trays in terms of PAR score reduction for finished cases from a graduate orthodontic clinic.
Author: Aileen Sehee Kim
Publisher:
ISBN:
Category :
Languages : en
Pages : 67
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Book Description
The aim of the investigation was to search the current literature (from April 2005 to December 2012) and determine the effectiveness of orthodontic tooth movement using the Invisalign system. With changes in attachments implemented within the past few years, a more recent appraisal of the available literature is of value. It is expected that this systematic review will provide a more up-to-date understanding of the treatment effects (efficacy in tooth movement and stability) of the Invisalign system. Additionally, an evaluation of the indications and case selection using Invisalign will be conducted A computerized search was conducted using PubMed, Evidence Based Medicine (EBM) Reviews Database (Cochrane Database of Systematic Reviews), Database of Abstracts of Reviews of Effects and Cochrane Central Register of Controlled Trials, Science Direct, and Thomsen's ISI Web of Science. Inclusion criteria that were to be satisfied by the literature search results were publications in English and human clinical trials. Studies not pertaining to the question of clinical effectiveness of Invisalign were selected for exclusion. Case reports, book chapters, and review papers were considered separately for analysis and contribution to the general information gathering in the systematic review. Book chapters were excluded. Quality assessment was performed on the studies that fulfilled the inclusion criteria. The quality and design of the study was considered. Of the studies that passed the quality assessment stage, a thorough evaluation was completed. Summaries of the included articles were prepared and information regarding study design, subjects, treatment times, and outcomes were organized in tabulated form. Appraisal of the included studies was performed using the 2010 CONSORT statement and 2009 ADA Clinical Recommendations Handbook. Overall, of the 271 studies reviewed (Stage I), 23 were selected for further review (Stage II). Ultimately, 10 studies were included in the systematic review (Stage III). In summary, after thorough analysis of the studies, it has been shown that Invisalign is an effective appliance for minor space closure, lingual constriction, and correction of anterior rotations and marginal ridge height discrepancies. However, Invisalign lacks the ability to correct anteroposterior discrepancies, occlusal contacts, extrusion, and rotations greater than 15 degrees. While the achieved and predicted tooth movement discrepancy was very minimal, it was found that overbite must be overcorrected.
Author: Wesley Lloyd Robinson
Publisher:
ISBN:
Category :
Languages : en
Pages : 82
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Book Description
Author: Theodore Eliades
Publisher: Woodhead Publishing
ISBN: 0081003994
Category : Medical
Languages : en
Pages : 320
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Book Description
Orthodontic Applications of Biomaterials: A Clinical Guide reviews the applications of biomaterials and their effects on enamel preparation, bonding, bracket and archwire ligation, mechanotherapy, debonding, and long-term enamel structural, color, and surface effects. The book provides a step-by-step analysis of the phenomena occurring, their clinical importance, and their underlying cause without the use of complex mathematical or physical-chemical analyses, with the goal of providing 'digestible' evidence for the clinician. - Serves as a reference source of the spectrum of biomaterials used in orthodontics - Presents the most current evidence of state-of-the-art methods of materials research - Provides substantiation for the effects occurring during the materials' uses
Author: Lee Mckelvey
Publisher: Cambridge University Press
ISBN: 9781108403375
Category : Juvenile Nonfiction
Languages : en
Pages : 608
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Book Description
Cambridge International AS & A Level Further Mathematics supports students following the 9231 syllabus. This single coursebook comprehensively covers all four modules of the syllabus and helps support students in their studies and develops their mathematical skills. Authored by experienced teachers of Further Mathematics, the coursebook provides detailed explanations and clear worked examples with practice exercises and exam-style questions. Answers are at the back of the book.
Author:
Publisher:
ISBN: 9781684600267
Category :
Languages : en
Pages :
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Book Description
Author: George Eliades
Publisher: Quintessence Publishing (IL)
ISBN:
Category : Medical
Languages : en
Pages : 308
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Book Description
This comprehensive review brings together research by biomaterials experts in various fields of dentistry, including oral and maxillofacial surgery, orthodontics, periodontics, prosthodontics, and restorative dentistry. Through the presentation of evidence derived exclusively from in vivo studies, the mechanisms governing the aging of materials placed in the oral cavity are clarified and selective aspects of the in vivo performance of materials demonstrated.
