Download or read book A Comparative Study of the Effect of Short term Deflection on Permanent Deformation of Nickel titanium Arch Wires written by Lisa M. Faris and published by . This book was released on 2000 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparative Study on the Effect of Short term Deflection on Permanent Deformation of Heat activated Nickel titanium Arch Wires written by Shawn Rice and published by . This book was released on 2000 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Long Term Deflection on Permanent Deformation in Nickel titanium Archwires written by John J. Hudgins and published by . This book was released on 1989 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dental Biomechanics written by Arturo N. Natali and published by CRC Press. This book was released on 2003-04-24 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dental Biomechanics provides a comprehensive, timely, and wide-reaching survey of the relevant aspects of biomechanical investigation within the dental field. Leading the reader through the mechanical analysis of dental problems in dental implants, orthodontics, and natural tooth mechanics, this book covers an increasingly important and popular sub
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1991 with total page 1380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dental Materials and Their Selection written by William Joseph O'Brien and published by Quintessence Publishing (IL). This book was released on 2002 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a textbook that includes a general classification of dental materials and guides students and practitioners in the use and selection of these materials.
Download or read book Evaluation of archwires in fixed appliance orthodontics written by Dr Kapil Kamal Kishor Fafat and published by DENTOMED PUBLICATION HOUSE. This book was released on 2022-03-18 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Deflection and Temperature on the Properties of Nickel Titanium Archwires written by Charoenchai Jankulprasut and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coated and Uncoated Nickel titanium Archwires written by Loveland, Kelcey Loveland and published by . This book was released on 2017 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined the effect of exposure to bracket-related load deflection on the mechanical properties and surface characteristics of esthetic coated and uncoated nickel titanium archwires. Two types of coated archwires were tested: one with a rhodium ion coating and another with a polymer coating. Corresponding uncoated wires of the same size were also tested. These four different wires were divided into treatment groups based on exposure to bracket-related load deflection and storage in PBS at 37±1°C. A three-point bend test in DI water at 37±1°C was performed on specimens at three time points: 4 weeks, 8 weeks, and 12 weeks. Unloading forces at 1, 2, and 3 mm of deflection were recorded. After 12 weeks exposure, three representative specimens from each treatment group along with untested wires were viewed using scanning electron microscopy (SEM) to provide a qualitative surface topography analysis. Results of the present study showed that no significant differences (p > 0.05) in unloading force were present in wires exposed to bracket-related load deflection. However, significant differences were observed between coated and uncoated wire types (p
Download or read book Load deflection and Permanent Deformation of Initial Orthodontic Archwires Over Time written by Daniel L. Foley and published by . This book was released on 1995 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mechanical Effects of Flaming Nickel Titanium Orthodontic Archwires written by David Matthew MacLeod and published by . This book was released on 2011 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objective: To assess the mechanical effects of nickel-titanium orthodontic archwire flaming and their distribution along the wire. Methodology: Two sizes of pre-formed austenitic nickel-titanium archwires were tested (n=10). The terminal 5mm of each wire was heated for five seconds using a butane lighter. Micro-hardness testing was used to determine the heat-affected zone for all wires. Cantilever bending was performed to assess the mechanical properties of heated wires. Results: The heat-affected zone was found to extend less than 2 mm past the flame boundary for all wires. For each wire gauge, the flamed zone was characterized by a lower and flatter super-elastic plateau and an increased tendency for plastic deformation when compared to controls. Conclusions: The limited ability of austenitic nickel-titanium orthodontic archwires to conduct heat past the boundary of the flamed region suggests no need to alter current clinical practice.
Download or read book Force deflection Properties of New and Retrieved 014 and 016 Nickel titanium Orthodontic Arch Wires from Different Manufacturers written by Robert Park (D.M.D.) and published by . This book was released on 2011 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of the Bending Behaviour of Nickel titanium Orthodontic Archwires written by Kerry Joseph Lester and published by . This book was released on 1996 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Simulated Oral Conditions on Surface Roughness and Friction Properties of Surface treated and Non surface Treated Nickel Titanium Archwires written by Mary Becker and published by . This book was released on 2019 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined the effect of simulated oral conditions (storage in phosphate-buffered saline (PBS) with bracket-related load deflection at 37±1°C for 12 weeks) on surface-treated and non-surface treated NiTi archwires. Three types of NiTi wires were tested: non-coated NiTi wire, nitrogen-treated NiTi wire, and rhodium-coated NiTi wire. Wire segments from each NiTi wire type underwent surface roughness measurements and friction testing in the as-received condition (control group) and following exposure to a simulated oral environment for 12 weeks (experimental treatment group). A profilometer was used to measure average roughness in three areas of each wire segment. After profilometry, a universal mechanical tester was used for friction testing. Each wire segment was pulled through a bracket in a passive configuration for 5 mm and the minimum, maximum, and mean of the top 10% of the load was calculated. Three representative specimens from each NiTi wire type in each condition were viewed using scanning electron microscopy (SEM) to provide qualitative surface topography analysis. Results of the study showed that all wires stored in simulated oral conditions (PBS at 37±1°C with bracket-related load deflection) were significantly rougher (p 0.05) than their counterparts in the as-received condition. Rhodium-coated wires were found to be significantly rougher (p
Download or read book The Effect of Topical Fluoride Agents on Coated Nickel titanium Archwires written by Kristen Marie Wellemeyer Sander and published by . This book was released on 2015 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined the effect of exposure to topical fluoride agents on the mechanical properties and surface characteristics of esthetic coated nickel-titanium archwires. Two types of coated wires were tested: one with a polymer coating and one with a rhodium ion coating. Wires were divided into treatment groups based on type of fluoride exposure: no treatment (DI water), neutral sodium fluoride gel, neutral sodium fluoride rinse, or acidulated phosphate fluoride (APF) gel. A three-point bend test in DI water at 37"1°C was performed on specimens before and after test solution exposure. Unloading forces at 1, 1.5, and 2mm of deflection were reported, along with unloading elastic modulus and yield strength. Three representative specimens from each treatment group along with untested wires underwent qualitative scanning electron microscopy (SEM) surface topography analysis following test solution exposure. Results of the present study indicated no significant difference between treatment groups for any mechanical properties measured (p> 0.05) after fluoride exposure. However, significant differences were observed between wire types for all measures within all treatment groups (p
Download or read book Comparison of Niti and TiNbTaZr Archwires During Initial Orthodontic Alignment written by Barrett Kyle Nordstrom and published by . This book was released on 2017 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: The purpose of this prospective, double-blind, randomized clinical trial was to compare the clinical efficiency of nickel-titanium and niobium-titanium-tantalum-zirconium (TiNbTaZr) archwires during initial orthodontic alignment. Methods: All subjects (ages between 12 to 20 years old) underwent nonextraction treatment using .022 brackets. All patients were randomized into 2 groups for initial alignment with .016 NiTi archwires (n=14), or with .016 TiNbTaZr archwires (n=14). Digital scans were taken during the course of treatment; these scans were used to compare the improvement in Little’s Irregularity Index and the changes intercanine and intermolar widths. Results: There was approximately a 27% reduction in crowding during the first month by the use of .016 TiNbTaZr (Gummetal) wire, and an additional 25% of decrease in crowding was observed during the next month. There was no significant difference between the two treatment groups in the decrease in irregularity over time (P=0.29). There was no significant difference between the two groups in the changes in intercanine and intermolar width (P=0.80). Conclusions: It can be concluded that Gummetal wires and conventional NiTi wires possess a similar ability to align teeth, and Gummetal wires have additional advantages over conventional NiTi such as formability and use in nickel allergy patients.
Download or read book An I n V i t r o Evaluation of the Superelastic Property of Nickel Titanium Alloy Wire Using the Three point Bend Test written by Charles Chung Wah Low and published by . This book was released on 1991 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
