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Australian Dental Journal Mar 2017Since the introduction of the Tooth Positioner (TP Orthodontics) in 1944, removable appliances analogous to clear aligners have been employed for mild to moderate... (Review)
Review
Since the introduction of the Tooth Positioner (TP Orthodontics) in 1944, removable appliances analogous to clear aligners have been employed for mild to moderate orthodontic tooth movements. Clear aligner therapy has been a part of orthodontic practice for decades, but has, particularly since the introduction of Invisalign appliances (Align Technology) in 1998, become an increasingly common addition to the orthodontic armamentarium. An internet search reveals at least 27 different clear aligner products currently on offer for orthodontic treatment. The present paper will highlight the increasing popularity of clear aligner appliances, as well as the clinical scope and the limitations of aligner therapy in general. Further, the paper will outline the differences between the various types of clear aligner products currently available.
Topics: Humans; Malocclusion; Orthodontic Appliance Design; Orthodontic Appliances, Removable
PubMed: 28297094
DOI: 10.1111/adj.12480 -
The Angle Orthodontist Jul 2020To assess the efficacy and efficiency of treatment in adolescents presenting with mild malocclusions, comparing outcomes using clear aligners to fixed appliances.
OBJECTIVE
To assess the efficacy and efficiency of treatment in adolescents presenting with mild malocclusions, comparing outcomes using clear aligners to fixed appliances.
MATERIALS AND METHODS
Patients identified retrospectively and consecutively from one private practice had been treated with either clear aligners (Invisalign, Align Technology, Santa Clara, Calif) or fixed appliances (0.022 Damon, Ormco, Orange, Calif; n = 26/group). Assessments of occlusion were made using the American Board of Orthodontics Discrepancy Index (DI) for initial records and Cast-Radiograph Evaluation (CRE) for final records. Number of appointments, number of emergency visits, and overall treatment time were determined from chart reviews. Data were analyzed using Pearson's correlation, Wilcoxon rank tests, unpaired t-tests, and Chi-square tests, with significance set to P ≤ .05.
RESULTS
Pretreatment, the aligner and fixed groups showed no significant difference in overall severity (DI: 11.9 ± 5.3 vs 11.6 ± 4.8) or in any individual DI category. Posttreatment scores showed finishes for the aligner group had fewer discrepancies from ideal relative to the fixed appliance group (CRE: 30.1 ± 8.3 vs 37.0 ± 9.3; P < .01). Patients treated with aligners had fewer appointments (13.7 ± 4.4 vs 19.3 ± 3.6; P < .0001), fewer emergency visits (0.8 ± 1.0 vs 3.6 ± 2.5; P < .0001), and shorter overall treatment time (16.9 ± 5.7 vs 23.4 ± 4.4 months; P < .0001).
CONCLUSIONS
Outcomes for treatment of mild malocclusions in adolescents showed equivalent effectiveness of clear aligners compared to fixed appliances, with significantly improved results for clear aligner treatment in terms of tooth alignment, occlusal relations, and overjet. Assessment of the number of appointments, number of emergency visits, and overall treatment time showed better outcomes for treatment with clear aligners.
Topics: Adolescent; Humans; Malocclusion; Orthodontic Appliance Design; Orthodontic Appliances, Fixed; Orthodontic Appliances, Removable; Outcome Assessment, Health Care; Retrospective Studies; Treatment Outcome
PubMed: 33378505
DOI: 10.2319/122919-844.1 -
American Journal of Orthodontics and... Dec 2019The objective of this study was to evaluate the extent to which different types of orthodontic appliances influence the hiring process of an individual applying for a...
INTRODUCTION
The objective of this study was to evaluate the extent to which different types of orthodontic appliances influence the hiring process of an individual applying for a customer service position.
METHODS
A total of 7 images were created for 2 adult models: 1 male and 1 female. One image was produced without orthodontic appliances, and 6 simulated the use of orthodontic appliances, including a conventional metallic appliance with a gray elastic ligature, a conventional metallic appliance with blue elastic ligature, a conventional appliance with a transparent elastic ligature, a self-ligating metal appliance, a self-ligating esthetic appliance, and a clear aligner. A photo album was designed for each model and delivered, along with a questionnaire, to individuals in charge of job interviews and hiring. These evaluators included 236 individuals, divided into 4 groups according to age and gender: males between 18-35 years (M), males over 35 years (M > 35), females between 18-35 years (F), and females over 35 years (F > 35). The evaluators quantified the chance of hiring the models using a Visual Analogue Scale. The Mann-Whitney test was used to compare the evaluators according to gender and age. The Wilcoxon test was used to compare the models according to gender. The Kruskal-Wallis and Dunn post hoc tests were used to compare the appliances according to design. A 5% significance level was used for all tests.
RESULTS
The clear aligner group showed the highest likelihood of being hired, followed by the group without orthodontic appliances, the groups with esthetic appliances (ie, conventional appliance with a transparent elastic ligature, and self-ligating esthetic appliance), and the groups with metallic appliances (ie, self-ligating metal appliance, conventional metallic appliance with gray elastic ligature, and conventional metallic appliance with blue elastic ligature).
CONCLUSIONS
Assuming all other qualifications of the applicants are equivalent, the use of an orthodontic appliance may influence job interviews. The better the esthetics of the appliance, the higher the likelihood of the individual being hired.
Topics: Adolescent; Adult; Employment; Esthetics, Dental; Female; Humans; Male; Orthodontic Appliance Design; Orthodontic Appliances; Orthodontic Brackets; Personnel Selection; Young Adult
PubMed: 31784009
DOI: 10.1016/j.ajodo.2018.12.020 -
Journal of the American Dental... Sep 1988The importance of attractive dental and facial appearance is at an all-time high for the American consumer. Because of this emphasis on appearance, the esthetic impact... (Review)
Review
The importance of attractive dental and facial appearance is at an all-time high for the American consumer. Because of this emphasis on appearance, the esthetic impact of the orthodontic appliance is a matter of great concern to prospective patients. This article presents an overview of the esthetic features of currently available orthodontic appliances.
Topics: Ceramics; Equipment Design; Esthetics, Dental; Humans; Orthodontic Appliances; Orthodontic Wires; Stainless Steel; Tooth Movement Techniques
PubMed: 3053858
DOI: 10.14219/jada.archive.1988.0038 -
Oral and Maxillofacial Surgery Sep 2014Anterior open bite cases are very difficult to treat satisfactorily because of their multifactorial aetiology and their very high relapse rate. Dependent on the origin... (Review)
Review
INTRODUCTION
Anterior open bite cases are very difficult to treat satisfactorily because of their multifactorial aetiology and their very high relapse rate. Dependent on the origin of the anterior open bite malocclusion and the patient's age, there are several treatment possibilities ranging from deterrent appliances, high-pull headgear, fixed appliances with and without extractions to orthognathic surgery, and skeletal anchorage with miniplates or miniscrews.
METHODS
The gold standard treatment of skeletal anterior open bite cases is the combined approach of orthodontic treatment with fixed appliances and orthognathic surgery. In recent years, temporary anchorage devices (TAD) have been developed to correct anterior open bites orthodontically. With the introduction of TAD as an effective treatment modality, orthognathic surgery may be avoidable in selected anterior open bite cases.
CONCLUSION
This is a relatively new technique and to date there remains a lack of evidence of long-term stability of anterior open bite closure with TAD.
Topics: Extraoral Traction Appliances; Humans; Open Bite; Orthodontic Anchorage Procedures; Orthodontic Appliance Design; Orthodontic Appliances; Orthognathic Surgical Procedures; Tooth Extraction
PubMed: 23949448
DOI: 10.1007/s10006-013-0430-5 -
Quintessence International (Berlin,... 2020This paper describes an alternative computer-aided design/computer-aided manufacturing (CAD/CAM) technique for the creation of a combined prosthetic restoration with...
This paper describes an alternative computer-aided design/computer-aided manufacturing (CAD/CAM) technique for the creation of a combined prosthetic restoration with orthodontic appliance (PROA). This concept allows the use of orthodontic appliances such as brackets, attachments, or any other type of appliance over different types of prosthetic restorations. The PROA concept aims to mitigate problems associated with performing restorative treatment when orthodontic treatment is necessary. This proposed concept provides the clinicians with proper control and planning of the interdisciplinary treatment that will lead to the final tooth shape, form, and proportions while performing orthodontic tooth movements.
Topics: Computer-Aided Design; Orthodontic Appliance Design; Orthodontic Appliances; Tooth Movement Techniques
PubMed: 32128526
DOI: 10.3290/j.qi.a44148 -
American Journal of Orthodontics and... Jan 2007
Topics: Humans; Orthodontic Appliance Design; Orthodontic Appliances; Practice Patterns, Dentists'
PubMed: 17208110
DOI: 10.1016/j.ajodo.2005.04.039 -
The Angle Orthodontist Jul 2020To evaluate the effect of orthodontic appliances on physicochemical, biochemical, and oxidative stress changes in salivary parameters during treatment.
OBJECTIVES
To evaluate the effect of orthodontic appliances on physicochemical, biochemical, and oxidative stress changes in salivary parameters during treatment.
MATERIALS AND METHODS
A cohort study was conducted with 112 healthy patients. Salivary samples were taken at baseline, 1 month, and 9 months after placement of the orthodontic appliances used in treatment.
RESULTS
A statistically significant difference was observed in certain examined salivary parameters, including enzymes, electrolytes, and oxidative stress markers.
CONCLUSIONS
The use of aligners had a lower prevalence of disturbing salivary parameters. Orthodontist must consider these changes to prevent the occurrence of white spot lesions.
Topics: Cohort Studies; Humans; Orthodontic Appliances; Saliva
PubMed: 33378497
DOI: 10.2319/082919-562.1 -
Seminars in Orthodontics Mar 1995One-couple orthodontic appliances are capable of applying well-defined forces and couples to effect controlled tooth movement during treatment. There are two sites of...
One-couple orthodontic appliances are capable of applying well-defined forces and couples to effect controlled tooth movement during treatment. There are two sites of attachment: one in which the appliance is inserted into a bracket or tube where both a couple and force is generated, and one at which the appliance is tied as a point contact where only a force is produced. Using relatively simple designs, powerful biomechanical force systems that are easy to discern clinically can be applied to move teeth according to a prescribed plan. Several one-couple appliances are described to move individual or groups of teeth in all three dimensions. A complete biomechanical analysis of each appliance is presented and clinical reports follow each description.
Topics: Cuspid; Dental Stress Analysis; Humans; Incisor; Molar; Orthodontic Appliance Design; Orthodontic Appliances; Orthodontic Wires; Patient Care Planning; Tooth Movement Techniques
PubMed: 8935039
DOI: 10.1016/s1073-8746(95)80084-0 -
American Journal of Orthodontics and... Dec 2010Although attractiveness and acceptability of orthodontic appliances have been rated by adults for themselves and for adolescents, children and adolescents have not... (Comparative Study)
Comparative Study
INTRODUCTION
Although attractiveness and acceptability of orthodontic appliances have been rated by adults for themselves and for adolescents, children and adolescents have not provided any substantial data. The objective of this study was to evaluate preferences and acceptability of orthodontic appliances in children and adolescents.
METHODS
Images of orthodontic appliances previously captured and standardized were selected and incorporated into a computer-based survey. Additional images of shaped brackets and colored elastomeric ties, as well as discolored clear elastomeric ties, were captured and incorporated onto existing survey images with Photoshop (Adobe, San Jose, Calif). The survey displayed 12 orthodontic appliance variations to 139 children in 3 age groups: 9 to 11 years (n = 45), 12 to 14 years (n = 49), and 15 to 17 years (n = 45). The subjects rated each image for attractiveness and acceptability. All images were displayed and rated twice to assess rater reliability.
RESULTS
Overall reliability ratings were r = 0.74 for attractiveness and k = 0.66 for acceptability. There were significant differences in bracket attractiveness and acceptability in each age group. The highest-rated appliances were clear aligners, twin brackets with colored ties, and shaped brackets with and without colored ties. Colored elastomeric ties improved attractiveness significantly over brackets without colored ties for children in the 12-to-14 year group. There was a tendency for older subjects to rate clear orthodontic appliances higher than did younger subjects. Ceramic brackets with discolored ties tended to be rated lower than ceramic brackets with new ties and scored lowest in acceptability and attractiveness in all age groups. Girls rated shaped brackets significantly higher than did boys.
CONCLUSIONS
Children's preferences for orthodontic appliances differ by age and sex. Child and adolescent preferences differ from adult preferences.
Topics: Adolescent; Age Factors; Ceramics; Child; Color; Computer Graphics; Dental Alloys; Dental Materials; Elastomers; Esthetics, Dental; Female; Humans; Male; Orthodontic Appliance Design; Orthodontic Appliances; Orthodontic Brackets; Orthodontic Wires; Patient Acceptance of Health Care; Patient Preference; Patient Satisfaction; Photography, Dental; Stainless Steel
PubMed: 21130314
DOI: 10.1016/j.ajodo.2010.06.012