CLEAR ALIGNERS- A REVIEW ARTICLE

2021 ◽  
pp. 19-21
Author(s):  
D. Sindhu ◽  
P. Kiran Kumar ◽  
R. Naveen ◽  
T. Saritha
Keyword(s):  
Digital Technology ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Review Article ◽  
Software Program ◽  
The Individual ◽  
Bone Physiology

clear aligners are rapidly growing sector of orthodontic treatment. Increased esthetic perception and increased demand for orthodontic care from adults have contributed to demand for a more esthetic technique for orthodontic treatment. For diagnosis, therapeutic preparation, and designing the nal occlusal result, clear aligners use digital technology. Clear aligners allow the biomechanics to be optimized by staging tooth movements in a particular sequence in the software program. The rate of tooth movement can also be modied according to the bone physiology of the individual by adjusting the scheduled number of days for aligner adjustments, depending on the individual's bone physiology

scholarly journals Amide I Band Analysis Applied to Vibrational Micro-Spectroscopies of Gingival Crevicular Fluid Samples for Orthodontic Treatment Monitoring

2021 ◽  
Vol 10 (1) ◽  
pp. 25
Author(s):  
Carlo Camerlingo ◽  
Ludovica Nucci ◽  
Fabrizia D’Apuzzo ◽  
Vincenzo Grassia ◽  
Letizia Perillo ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Gingival Crevicular Fluid ◽  
Orthodontic Tooth Movement ◽  
Deconvolution Analysis ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Vibrational Spectroscopies ◽  
The Individual ◽  
Crevicular Fluid

Vibrational micro-spectroscopies were applied to investigate the gingival crevicular fluid (GCF) for monitoring orthodontic treatment with fixed appliances. The GCF samples were investigated using Fourier transform infrared, Raman, and surface-enhanced Raman micro-spectroscopies. The GCF spectra collected at different times of orthodontic tooth movement were used to characterize the biochemical changes occurring during the treatment. We examined the amide I band region by means of deconvolution analysis using Gaussian–Lorentzian curves for infrared spectra and Lorentzian curves for Raman spectra. This analysis allowed us to evidence the contribution of the different subcomponents of the amide I band and the changes occurring during orthodontic treatment. These changes can be ascribed to modifications in the secondary structure of protein content and could contribute to make vibrational spectroscopies a useful tool for monitoring the individual patient’s response to orthodontic force application.

Optimum force for tooth movement in orthodontic treatment

2012 ◽  
Author(s):  
Mei Li ◽  
Qingsong Ye ◽  
Qu Wenwen ◽  
Taixiang Wu ◽  
Qiao Ju
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement

Optimum force for tooth movement in orthodontic treatment

2007 ◽  
Author(s):  
Mei Li ◽  
Qingsong Ye ◽  
Qu Wenwen ◽  
Taixiang Wu ◽  
Qiao Ju
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement

scholarly journals Evaluation of IL1β and IL6 Gingival Crevicular Fluid Levels during the Early Phase of Orthodontic Tooth Movement in Adolescents and Young Adults

2021 ◽  
Vol 11 (2) ◽  
pp. 521
Author(s):  
Simina Chelărescu ◽  
Petra Șurlin ◽  
Mioara Decusară ◽  
Mădălina Oprică ◽  
Eugen Bud ◽  
...  
Keyword(s):  
Young Adults ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Gingival Crevicular Fluid ◽  
Early Stage ◽  
Statistical Tests ◽  
Orthodontic Tooth Movement ◽  
Adolescents And Young Adults ◽  
Periodontal Tissues ◽  
Crevicular Fluid

Background: The crevicular fluid analysis represents a useful diagnosis tool, with the help of which noninvasive cellular metabolic activity can be analyzed. The aim of the study is to investigate comparatively IL1β and IL6 in the gingival crevicular fluid of clinically healthy adolescents and young adults during the acute phase of orthodontic treatment. Methods: Gingival crevicular fluid was collected from 20 patients (aged between 11 and 28) undergoing orthodontic treatment. Measurements were taken before (T0) and after 24 h after distalization forces were activated (T1). IL1β and IL 6 were analyzed using Elisa tests. The statistical tests used were two-sided t tests. Results: Between the two time periods there was a significant raise both in the crevicular fluid rate (0.57 µL at T0 vs. 0.95 µL at T1, p = 0.001) and in IL1β levels (15.67 pg/µL at T0 vs. 27.94 pg/µL at T1, p = 0.009). We were able to identify IL6 only in a third of the sites. There is a significantly increased level of ILβ at T1 in adolescents, more than in young adults (42.96 pg/µL vs. 17.93 pg/µL, p = 0.006). Conclusions: In the early stage of orthodontic treatment, the periodontal tissues of adolescents are more responsive to orthodontic forces than those of young adults.

scholarly journals A Knowledge-Based Algorithm for Automatic Monitoring of Orthodontic Treatment: The Dental Monitoring System. Two Cases

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1856
Author(s):  
Silvia Caruso ◽  
Sara Caruso ◽  
Marianna Pellegrino ◽  
Rayan Skafi ◽  
Alessandro Nota ◽  
...  
Keyword(s):  
Adult Patient ◽  
Remote Monitoring ◽  
Digital Technology ◽  
Orthodontic Treatment ◽  
Dental Treatment ◽  
Automatic Monitoring ◽  
Software As A Service ◽  
Knowledge Based ◽  
First Case ◽  
Service Application

Background: In the dental field, digital technology has created new opportunities for orthodontists to integrate their clinical practice, and for patients to collect information about orthodontics and their treatment, which is called “teledentistry.” Dental monitoring (DM) is a recently introduced orthodontic application that combines safe teledentistry with artificial intelligence (AI) using a knowledge-based algorithm, allowing an accurate semi-automatic monitoring of the treatment. Dental Monitoring is the world’s first SaaS (Software as a Service) application designed for remote monitoring of dental treatment, developed in Paris, France, with Philippe Salah as the Co-founder and CEO. Cases presentation: This report describes two cases in which DM system was essential to achieve the control of certain movements: it was possible to follow the movement, even if complex, such as the anterior cross of an adult patient and a lack of space in the canine of the growing patient. The software analyzed the fit and retention of the aligner, thus ensuring correct biomechanics. They were treated during the COVID-19 pandemic lockdown with aligners. The first case is a growing patient who was monitored during an interceptive orthodontic treatment to manage a retained upper canine. The second case is an adult patient forced to finalize his treatment of upper lateral incisor crossbite. The software analyzed the fit and retention of the aligner, thus ensuring correct biomechanics. Conclusions: DM system appears to be a promising method, useful for improving the interaction between doctor and patient, generally acceptable and useful to patients, even in critical clinical situations, at least in cases with optimal compliance and ability to use the tool properly.

scholarly journals Application of Vibrational Spectroscopies in the Qualitative Analysis of Gingival Crevicular Fluid and Periodontal Ligament during Orthodontic Tooth Movement

2021 ◽  
Vol 10 (7) ◽  
pp. 1405
Author(s):  
Fabrizia d’Apuzzo ◽  
Ludovica Nucci ◽  
Ines Delfino ◽  
Marianna Portaccio ◽  
Giuseppe Minervini ◽  
...  
Keyword(s):  
Periodontal Ligament ◽  
Tooth Movement ◽  
Gingival Crevicular Fluid ◽  
Orthodontic Tooth Movement ◽  
High Sensitivity ◽  
Data Analysis Procedure ◽  
Vibrational Spectroscopies ◽  
Composition Structure ◽  
The Individual ◽  
Crevicular Fluid

Optical vibrational techniques show a high potentiality in many biomedical fields for their characteristics of high sensitivity in revealing detailed information on composition, structure, and molecular interaction with reduced analysis time. In the last years, we have used these techniques for investigating gingival crevicular fluid (GCF) and periodontal ligament (PDL) during orthodontic tooth treatment. The analysis with Raman and infrared signals of GCF and PDL samples highlighted that different days of orthodontic force application causes modifications in the molecular secondary structure at specific wavenumbers related to the Amide I, Amide III, CH deformation, and CH3/CH2. In the present review, we report the most relevant results and a brief description of the experimental techniques and data analysis procedure in order to evidence that the vibrational spectroscopies could be a potential useful tool for an immediate monitoring of the individual patient’s response to the orthodontic tooth movement, aiming to more personalized treatment reducing any side effects.

Changes of Periodontal Tissues Because of Orthodontic Treatment: A Retrospective Study

2021 ◽  
pp. 232020682110034
Author(s):  
Hamad Alzoman ◽  
Khalid Alamoud ◽  
Waad K. Alomran ◽  
Abdullazez Almudhi ◽  
Naif A. Bindayel
Keyword(s):  
Retrospective Study ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Positive Impact ◽  
Demographic Data ◽  
Gingival Recession ◽  
Confounding Factors ◽  
Crown Height ◽  
Periodontal Tissues ◽  
Before And After

Aim: To evaluate the periodontal status before and after orthodontic treatment and to analyze the confounding factors associated with it. Materials and Methods: The present retrospective study analyzed pre- and posttreatment records of a total of 60 patients. Intraoral digital photographs before and after the orthodontic treatment were used to measure the following three periodontal variables: (a) width of the keratinized gingiva, (b) gingival recession, and (c) the status of interdental papilla. The ImageJ 46 software imaging program was used to perform the required measurements. The clinical data were then analyzed in an association with the participants’ demographic data, the type of orthodontic tooth movement, and other confounding factors. The data obtained were manually entered into the statistical package and analyzed using a significance level set at P < .05. Descriptive statistics, paired t-tests, and Pearson’s correlation analysis were used to identify differences among the studied variables. Results: Among the 60 patients, the majority (66.7%) were females. Most cases of the treated malocclusion were Class II, and most patients underwent intrusion and retrusion movements. The width of keratinized gingiva increased for most sites of upper teeth. In contrast, the lower teeth showed a mix of improvement and compromised width of keratinized gingiva. As a measure of gingival recession, the difference of clinical crown height revealed the tendency toward a reduced clinical crown height for most sites. Upper left lateral incisors and canines showed significant values with regard to keratinized gingival width measurements and tooth movements such as extrusion and intrusion movements. Likewise, with regard to the clinical crown height, upper right central incisors showed significant differences when correlated with the interincisal angle, lower incisors to the mandibular plane, and upper incisors to the NA line. The upper lateral incisors also showed significant correlations to certain cephalometric measurements. Conclusions: The orthodontic treatment was found to exert a significantly positive impact on the surrounding periodontium, particularly in the upper canine areas. Likewise, various types of tooth movement were found to positively affect the periodontium.

Colorants in plastic applications

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Gerhard Pfaff
Keyword(s):  
Current Knowledge ◽  
Review Article ◽  
Important Application ◽  
Processing Method ◽  
Application Systems ◽  
Plastic Type ◽  
Printing Inks ◽  
Cosmetic Formulations ◽  
Plastics Processing ◽  
The Individual

AbstractThis review article is a summary of the current knowledge in the field of plastic coloring. Plastics belong as well as paints, coatings, printing inks, and cosmetic formulations to the most important application systems for colorants, both for pigments and dyes. Colorants have to meet increasing demands in plastic applications due to the growing number of polymers with specific properties. Crucial factors besides the plastic type are the processing method and the required fastness level. Among the most important polymers for coloring with pigments and dyes are polyolefins, polyvinyl chloride, polyurethane, polyamide, polycarbonate, polyester, and elastomers. Different processing methods are used for coloring of the individual plastics. The coloring processes need to be coordinated in accordance with the steps of the plastics processing leading to the final product.

scholarly journals Is Inflammation a Friend or Foe for Orthodontic Treatment?: Inflammation in Orthodontically Induced Inflammatory Root Resorption and Accelerating Tooth Movement

2021 ◽  
Vol 22 (5) ◽  
pp. 2388
Author(s):  
Masaru Yamaguchi ◽  
Shinichi Fukasawa
Keyword(s):  
Inflammatory Mediators ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Tooth Movement ◽  
Root Resorption ◽  
Orthodontic Tooth Movement ◽  
Tnf Α ◽  
Orthodontic Forces ◽  
Necrosis Factor

The aim of this paper is to provide a review on the role of inflammation in orthodontically induced inflammatory root resorption (OIIRR) and accelerating orthodontic tooth movement (AOTM) in orthodontic treatment. Orthodontic tooth movement (OTM) is stimulated by remodeling of the periodontal ligament (PDL) and alveolar bone. These remodeling activities and tooth displacement are involved in the occurrence of an inflammatory process in the periodontium, in response to orthodontic forces. Inflammatory mediators such as prostaglandins (PGs), interleukins (Ils; IL-1, -6, -17), the tumor necrosis factor (TNF)-α superfamily, and receptor activator of nuclear factor (RANK)/RANK ligand (RANKL)/osteoprotegerin (OPG) are increased in the PDL during OTM. OIIRR is one of the accidental symptoms, and inflammatory mediators have been detected in resorbed roots, PDL, and alveolar bone exposed to heavy orthodontic force. Therefore, these inflammatory mediators are involved with the occurrence of OIIRR during orthodontic tooth movement. On the contrary, regional accelerating phenomenon (RAP) occurs after fractures and surgery such as osteotomies or bone grafting, and bone healing is accelerated by increasing osteoclasts and osteoblasts. Recently, tooth movement after surgical procedures such as corticotomy, corticision, piezocision, and micro-osteoperforation might be accelerated by RAP, which increases the bone metabolism. Therefore, inflammation may be involved in accelerated OTM (AOTM). The knowledge of inflammation during orthodontic treatment could be used in preventing OIIRR and AOTM.

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