Orthodontic Protocol Using Mini-Implant for Class II Treatment in Patient with Special Needs

Case Reports in Dentistry ◽

10.1155/2016/1057263 ◽

2016 ◽

Vol 2016 ◽

pp. 1-12 ◽

Cited By ~ 1

Author(s):

Fernando Pedrin Carvalho Ferreira ◽

Anderson Paulo Barbosa Lima ◽

Eliana de Cássia Molina de Paula ◽

Ana Claudia de Castro Ferreira Conti ◽

Danilo Pinelli Valarelli ◽

...

Keyword(s):

Special Needs ◽

Root Resorption ◽

Low Cost ◽

Treatment Success ◽

Class Ii ◽

Congenital Nystagmus ◽

Severe Scoliosis ◽

Class Ii Treatment ◽

Dental Esthetics ◽

Materials Used

Improving facial and dental appearance and social interaction are the main factors for special needs (SN) patients to seek orthodontic treatment. The cooperation of SN patients and their parents is crucial for treatment success.Objective. To show through a case report the satisfactory results, both functional and esthetic, in patients with intellectual disability, congenital nystagmus, and severe scoliosis.Materials Used. Pendulum device with mini-implants as anchorage unit.Results. Improvement of facial and dental esthetics, correction of Class II malocclusion, and no root resorption shown in the radiographic follow-up.Conclusion. Knowing the limitations of SN patients, having a trained team, motivating and counting on the cooperation of parents and patients, and employing quick and low-cost orthodontic therapy have been shown to be the essential factors for treatment success.

Download Full-text

Class II treatment success rate in 2- and 4-premolar extraction protocols

American Journal of Orthodontics and Dentofacial Orthopedics ◽

10.1016/j.ajodo.2003.04.013 ◽

2004 ◽

Vol 125 (4) ◽

pp. 472-479 ◽

Cited By ~ 34

Author(s):

Guilherme Janson ◽

Adriana da Costa Brambilla ◽

José Fernando Castanha Henriques ◽

Marcos Roberto de Freitas ◽

Leniana Santos Neves

Keyword(s):

Success Rate ◽

Treatment Success ◽

Class Ii ◽

Treatment Success Rate ◽

Premolar Extraction ◽

Class Ii Treatment

Download Full-text

Treatment of class II furcation defects with autogenous bone graft associated with Bichat’s fat pad: case report

RSBO ◽

10.21726/rsbo.v1i2.412 ◽

2017 ◽

Vol 1 (2) ◽

pp. 114

Author(s):

Priscila Alves Teixeira ◽

Carmen L. Mueller Storrer ◽

Felipe Rychuv Santos ◽

Aline Monise Sebastiani ◽

Tatiana Miranda Deliberador

Keyword(s):

Case Report ◽

Bone Graft ◽

Low Cost ◽

Class Ii ◽

Autogenous Bone Graft ◽

Surgical Reconstruction ◽

Autogenous Bone ◽

Fat Pad ◽

Furcation Defects ◽

Maxillary Tuberosity

The periodontal treatment of teeth with furcation defect is clinically challenging. In cases of class II furcation defects, the regenerative surgery shows low morbidity and good prognosis when correctly indicated. The aim of the presentstudy is to report a treatment option for class II furcation defect through autogenous bone graft associated with the Bichat’s fat pad. Case report: A 59-year-old female patient was diagnosed with class II furcation defect in the left mandibular first molar. The treatment comprised surgical reconstruction of the defect with a combination of maxillary tuberosity bone graft and Bichat’s fat pad. The clinical and radiographic follow-up of 180 days showed bone formation inthe furcation area and absence of probing depth. Conclusion: An association of autogenous graft form the maxillary tuberosity with a Bichat’s fat pad proved to be a safe, low cost, and effective therapy for the regenerative treatment of class II furcation.

Download Full-text

Proxy Crimps: A Transformative Solution

The Journal of Indian Orthodontic Society ◽

10.1177/0301574220963419 ◽

2021 ◽

pp. 030157422096341

Author(s):

Jamoy James ◽

Payal Ostwal ◽

Juhi Notra

Keyword(s):

Low Cost ◽

Class Ii ◽

Class Ii Malocclusion ◽

Functional Appliances

The Forsus appliance is one of the most commonly used rigid fixed functional appliances in the correction of class II malocclusion. It is often seen that parts go missing with regular usage of the appliance. Replacement of the same is expensive and also requires a large inventory. An innovative low-cost and easy option for lost or broken split crimps is described in this article.

Download Full-text

Does daily wear time of Twin Block reliably predict its efficiency of class II treatment?

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie ◽

10.1007/s00056-021-00300-7 ◽

2021 ◽

Author(s):

Michal Sarul ◽

Marek Nahajowski ◽

Grzegorz Gawin ◽

Joanna Antoszewska-Smith

Keyword(s):

Statistical Significance ◽

Characteristic Curve ◽

Class Ii ◽

Class I ◽

Rank Test ◽

Treatment Efficiency ◽

Significance Level ◽

Twin Block ◽

Wear Time ◽

Class Ii Treatment

Abstract Purpose The objective of this study was to investigate how daily wear time (DWT) influences class II malocclusion treatment efficiency. Materials and methods The study group consisted of 55 patients (mean age 10.4 years) diagnosed with a class II/1 malocclusion. Twin block appliances, with built-in Theramon® microsensors (MC Technology, Hargelsberg, Austria) to monitor patients’ cooperation (daily wear time assessment), were used for treatment. Cephalograms were taken and the following initial and final measurements were compared: Co-Gn, Co-Go, Co-Olp, Pg-Olp, WITS, SNA, SNB, ANB, Co-Go-Me, overjet, molar and canine relationships. The Shapiro–Wilk test, Wilcoxon signed-rank test, Student’s t-test, Levene’s test, Mann–Whitney U test, Kruskal–Wallis test, χ2 test, and Spearman’s rank correlation coefficient with p < 0.05 set as the statistical significance level were used to determine the correlation of the outcomes with DWT; a ROC (receiver operating characteristic) curve was calculated to illustrate diagnostic ability of the binary classifier system. Results DWT was very highly positively correlated with change of the Pg-Olp parameter and highly with an improvement in the ANB, SNA, and SNB angles, an increase in the WITS parameter and an increase in Co-Gn distance. DWTs < 7.5 h correlated with significantly less improvement of the investigated variables. However, DWT > 7.5 h did not significantly correlate with the improvement of the overjet and most of the linear parameters in the mandible. The ROC curve and its AUC (area under curve) allowed the determination of a DWT of 7 h and 48 min to be capable of establishing a class I relationship with 83% probability. Conclusions Class II treatment efficiency was influenced by DWT; an 8 h threshold value had an 83% probability of establishing a class I relationship.

Download Full-text

Teeth angulations after class II treatment with the Jones Jig followed by fixed appliances: A retrospective panoramic analysis

International Orthodontics ◽

10.1016/j.ortho.2020.06.002 ◽

2020 ◽

Vol 18 (3) ◽

pp. 436-442

Author(s):

Silvio Augusto Bellini-Pereira ◽

Gabriel Querobim Sant’Anna ◽

Maria Claudia Wagner ◽

Aron Aliaga-DelCastillo ◽

Mayara Paim Patel ◽

...

Keyword(s):

Class Ii ◽

Class Ii Treatment ◽

Panoramic Analysis ◽

Fixed Appliances

Download Full-text

Chitosan-Based Nanocomposite Polymeric Membranes for Water Purification—A Review

Materials ◽

10.3390/ma14092091 ◽

2021 ◽

Vol 14 (9) ◽

pp. 2091

Author(s):

Angela Spoială ◽

Cornelia-Ioana Ilie ◽

Denisa Ficai ◽

Anton Ficai ◽

Ecaterina Andronescu

Keyword(s):

Water Purification ◽

Antioxidant Activities ◽

Low Cost ◽

Synthetic Polymers ◽

Water Systems ◽

Polymeric Membranes ◽

Wastewater Purification ◽

Toxic Compounds ◽

The Past ◽

Materials Used

During the past few years, researchers have focused their attention on developing innovative nanocomposite polymeric membranes with applications in water purification. Natural and synthetic polymers were considered, and it was proven that chitosan-based materials presented important features. This review presents an overview regarding diverse materials used in developing innovative chitosan-based nanocomposite polymeric membranes for water purification. The first part of the review presents a detailed introduction about chitosan, highlighting the fact that is a biocompatible, biodegradable, low-cost, nontoxic biopolymer, having unique structure and interesting properties, and also antibacterial and antioxidant activities, reasons for using it in water treatment applications. To use chitosan-based materials for developing nanocomposite polymeric membranes for wastewater purification applications must enhance their performance by using different materials. In the second part of the review, the performance’s features will be presented as a consequence of adding different nanoparticles, also showing the effect that those nanoparticles could bring on other polymeric membranes. Among these features, pollutant’s retention and enhancing thermo-mechanical properties will be mentioned. The focus of the third section of the review will illustrate chitosan-based nanocomposite as polymeric membranes for water purification. Over the last few years, researchers have demonstrated that adsorbent nanocomposite polymeric membranes are powerful, important, and potential instruments in separation or removal of pollutants, such as heavy metals, dyes, and other toxic compounds presented in water systems. Lastly, we conclude this review with a summary of the most important applications of chitosan-based nanocomposite polymeric membranes and their perspectives in water purification.

Download Full-text

Relationship between malocclusion severity and treatment success rate in Class II nonextraction therapy

American Journal of Orthodontics and Dentofacial Orthopedics ◽

10.1016/j.ajodo.2008.10.005 ◽

2009 ◽

Vol 135 (3) ◽

pp. 274-275 ◽

Cited By ~ 4

Author(s):

Guilherme Janson ◽

Fabrício Pinelli Valarelli ◽

Rodrigo Hermont Cançado ◽

Marcos Roberto de Freitas ◽

Arnaldo Pinzan

Keyword(s):

Success Rate ◽

Treatment Success ◽

Class Ii ◽

Treatment Success Rate

Download Full-text

Corrosion Study on Wellbore Materials for the CO2 Injection Process

Processes ◽

10.3390/pr9010115 ◽

2021 ◽

Vol 9 (1) ◽

pp. 115

Author(s):

Le Quynh Hoa ◽

Ralph Bäßler ◽

Dirk Bettge ◽

Enrico Buggisch ◽

Bernadette Nicole Schiller ◽

...

Keyword(s):

Cross Sections ◽

Low Cost ◽

Co2 Injection ◽

Uniform Corrosion ◽

Injection Wells ◽

Safety Issues ◽

Carbonation Process ◽

Injection Process ◽

Materials Used ◽

Low Alloyed Steel

For reliability and safety issues of injection wells, corrosion resistance of materials used needs to be determined. Herein, representative low-cost materials, including carbon steel X70/1.8977 and low alloyed steel 1.7225, were embedded in mortar to mimic the realistic casing-mortar interface. Two types of cement were investigated: (1) Dyckerhoff Variodur commercial Portland cement, representing a highly acidic resistant cement and (2) Wollastonite, which can react with CO2 and become stable under a CO2 stream due to the carbonation process. Exposure tests were performed under 10 MPa and at 333 K in artificial aquifer fluid for up to 20 weeks, revealing crevice corrosion and uniform corrosion instead of expected pitting corrosion. To clarify the role of cement, simulated pore water was made by dispersing cement powder in aquifer fluid and used as a solution to expose steels. Surface analysis, accompanied by element mapping on exposed specimens and their cross-sections, was carried out to trace the chloride intrusion and corrosion process that followed.

Download Full-text