Distal End Cutters—Efficiency, Safety and Design

1996 ◽  
Vol 23 (2) ◽  
pp. 172-176
Author(s):  
Julian R. S. O'Neill
Keyword(s):  
Stainless Steel ◽  
Small Diameter ◽  
Nickel Titanium ◽  
Steel Wires ◽  
Different Types ◽  
Different Dimensions

This investigation aimed to evaluate the efficiency of a range of different distal end cutters in cutting and holding the ends of orthodontic arch wires. Fourteen different types of distal end cutter were used to cut a range of orthodontic arch wires under standard conditions. The arch wires comprised nickel-titanium and stainless steel wires of different dimensions, as well as twist flex and coaxial wires. The number of times each wire was successfully cut and held by each cutter was recorded. Significant differences in performance between the cutters were noted, particularly in holding the cut distal ends. Small diameter nickel-titanium wires were significantly less well held than heavier grade or stainless steel wires. Twist flex and coaxial wires were less easily cut cleanly than nickel-titanium and plain staiidess steel wires.

scholarly journals Clinical evaluation of dental alignment and leveling with three different types of orthodontic wires

2013 ◽  
Vol 18 (6) ◽  
pp. 31-37 ◽  
Author(s):  
Marco Abdo Gravina ◽  
Ione Helena Vieira Portella Brunharo ◽  
Marcelo Reis Fraga ◽  
Flavia Artese ◽  
Marcio José da Silva Campos ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Tooth Movement ◽  
Nickel Titanium ◽  
Orthodontic Wires ◽  
Tooth Position ◽  
Irregularity Index ◽  
Curve Of Spee ◽  
Steel Wires ◽  
Different Types ◽  
Clinical Responses

INTRODUCTION: A wide variety of orthodontic wires made of different alloys is available to be used in orthodontic practice and may produce different clinical responses during tooth movement. OBJECTIVE: This research evaluated the alignment and leveling of lower dental arches after the use of three types of orthodontic wires. METHODS: A sample of 36 patients was randomly divided into 3 groups: stainless steel, multistranded steel and superelastic nickel-titanium, according to the first leveling arches used. In order to observe differences in tooth position and axial inclination of the lower incisors, all patients had lateral cephalometric radiographs taken before the insertion of the first arches and 2 months later. The irregularity index and the curve of Spee were measured, compared between groups and considered influential on the proclination of incisors during the initial phase of alignment and leveling. The Reflex microscope was used to measure the irregularity index, whereas the ANOVA analysis of variance was used to verify differences between groups with regard to the degree of dental alignment and leveling. RESULTS: There were significant differences between groups only at T2 for the irregularity index. CONCLUSION: The NiTi and multistranded steel wires showed greater aligning capacity when compared with stainless steel wires.

scholarly journals In Vitro Corrosion Behavior of Lingual Orthodontic Archwires

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Carlos Suárez ◽  
Teresa Vilar ◽  
Pablo Sevilla ◽  
Javier Gil
Keyword(s):  
Differential Scanning Calorimetry ◽  
Stainless Steel ◽  
Rhombohedral Phase ◽  
Nickel Titanium ◽  
Scanning Calorimetry ◽  
Lingual Orthodontics ◽  
Phase Transition Temperatures ◽  
Different Types ◽  
Orthodontic Archwires

Objectives. To investigate the in vitro electrochemical corrosive behavior of archwires used in lingual orthodontics and the effects on the phase transition temperatures.Materials and Methods. Six different types of archwires of stainless steel, titanium-molybdenum, nickel-titanium and nickel-titanium-copper were used. Corrosion tests were performed following ISO-standard 10993-15:2000. Differential scanning calorimetry and scanning electron microscopy were used.Results. The stainless steel archwires showed anEpitaround −600 mV, and those of titanium alloys showedEpitvalues around 1000 mV. Differential scanning calorimetry detected a rhombohedral phase in nickel-titanium archwires, while it was not detected in nickel-titanium-copper wires. A difference of 2°C to 3.5°C from the manufacturer's claim was found in the as-received and polarized samples, respectively.Conclusions. The 0.016 stainless steel archwires were found to be the less resistant to corrosion. A rhombohedral phase was detected on the nickel-titanium archwires. No major differences were observed among groups concerning phase transformation temperatures.

scholarly journals Forces Produced by Different Nonconventional Bracket or Ligature Systems during Alignment of Apically Displaced Teeth

2009 ◽  
Vol 79 (3) ◽  
pp. 533-539 ◽  
Author(s):  
Tiziano Baccetti ◽  
Lorenzo Franchi ◽  
Matteo Camporesi ◽  
Efisio Defraia ◽  
Ersilia Barbato
Keyword(s):  
Stainless Steel ◽  
Nickel Titanium ◽  
Low Friction ◽  
Different Types ◽  
Conventional Brackets ◽  
Titanium Wire ◽  
Conventional Systems ◽  
Post Hoc ◽  
Conventional Stainless Steel ◽  
Apical Displacement

Abstract Objective: To analyze the forces released by four types of passive stainless steel self-ligating brackets (SLBs), and by two nonconventional elastomeric ligature-bracket systems when compared with conventional elastomeric ligatures on conventional stainless steel brackets during the alignment of apically displaced teeth at the maxillary arch. Materials and Methods: An experimental model consisting of five brackets was used to assess the forces released by the seven different ligature-bracket systems with 0.012″ or 0.014″ superelastic nickel titanium wire in the presence of different amounts of apical displacement of the canine (ranging from 1.5 mm to 6 mm). Comparisons between the different types of bracket/wire/ ligature systems were carried out by means of ANOVA on ranks with Dunnett's post hoc test (P < .05). Results: When correction of a misalignment greater than 3 mm is attempted, a noticeable amount of force for alignment is generated by passive SLBs and nonconventional elastomeric ligature-bracket systems, and a null amount of force is released in the presence of conventional elastomeric ligatures on conventional brackets. Conclusions: When minimal apical displacement is needed (1.5 mm), the differences in performance between low-friction and conventional systems are minimal. These differences become significant when correction of a misalignment of greater than 3.0 mm is attempted.

scholarly journals A Systematic review on aligning efficiency of superelastic NITI: in comparison with conventional NITI and multistranded stainless steel archwires

2017 ◽  
Vol 5 (1) ◽  
pp. 39
Author(s):  
Deepa Kumaran ◽  
Shantha Sundari ◽  
Shyamala Chandrasekhar
Keyword(s):  
Systematic Review ◽  
Stainless Steel ◽  
Orthodontic Treatment ◽  
Literature Search ◽  
Nickel Titanium ◽  
Systematic Literature Search ◽  
Inclusion Criteria ◽  
Initial Alignment ◽  
Steel Wires ◽  
In The Beginning

Background: The initial leveling and aligning phase of orthodontic treatment involve the use of nickel titanium wires. The nickel titanium wires exhibit unique properties like shape memory and superelasticity. In the beginning, conventional nitinol wires were used, which lacked the superelastic property. Nowadays, superelastic nickel titanium wires are being used commonly. This systematic review aims to evaluate the efficiency of Superelastic NITi in the initial alignment of orthodontic treatment in comparison with conventional NiTi and multistranded stainless steel archwires by measuring the amount of decrowding and the time taken for decrowding.Method: A systematic literature search was performed on Pubmed, Cochrane, Google scholar & Lilacs.Result: Thirty four studies were identified by the search and ten studies satisfied the inclusion criteria and one study was excluded after abstract reading. Finally nine articles were included for quality assessment.Conclusion: This systematic review concluded that there was no significant differences in the aligning efficiency of superelastic NiTi in comparison with conventional NiTi and multistranded stainless steel wires. 

BRILLIANT 2101 T-1 AP

Alloy Digest ◽  
2012 ◽  
Vol 61 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Tensile Properties ◽  
Stainless Steels ◽  
Duplex Stainless Steels ◽  
Good Balance ◽  
Steel Wires

Abstract Stoody AP stainless steel wires are all-position wires. The nickel in this product will achieve a good balance of austenite and ferrite in lean duplex stainless steels. This datasheet provides information on composition and tensile properties as well as fracture toughness. It also includes information on forming and joining. Filing Code: SS-1118. Producer or source: Stoody Company.

CARPENTER CUSTOM 475

Alloy Digest ◽  
2006 ◽  
Vol 55 (9) ◽  
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Small Diameter ◽  
High Strength ◽  
Heat Treating ◽  
Good Corrosion Resistance ◽  
Technology Corporation ◽  
Peak Aged ◽  
Carpenter Technology Corporation

Abstract Custom 475 stainless is a premium melted, high-strength, martensitic, precipitation-hardenable stainless steel. It provides good corrosion resistance and was designed to achieve a tensile strength up to 2000 MPa (290 ksi), combined with good toughness and ductility when in the H975 condition, peak aged at 525 deg C (975 deg F). Other combinations of strength are possible by applying aging temperatures up to 595 deg C (1100 deg F). The alloy is available in strip, wire, and small diameter bar. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-974. Producer or source: Carpenter Technology Corporation.

Role of Panchakarma in management of Gridhrasi

2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Imlikumba . ◽  
Parappagoudra Mahesh ◽  
BA Lohith ◽  
K Singha ◽  
S Lalravi
Keyword(s):  
Modern Science ◽  
Stressful Life ◽  
Low Back ◽  
Lateral Aspect ◽  
Effective Measure ◽  
Main Complaint ◽  
Different Types ◽  
Back Ache ◽  
Different Dimensions

Panchakarma is a fruitful measure and its extensive efficacies are classified in different dimensions to cure different types of complicated diseases. Vamana, Virechana, Niruha, Anuvasana and Nasya are the five procedures and subsequently even Vamana, Virechana, Basti, Nasya and Rakta Mokshana are broadly termed as Panchakarma in day to day practices.The new diseases are evolving with intense gravity and therefore to combat those, Panchakarma is a very effective measure. In present era competition and advancement have led to hectic and stressful life, man has eventually forgotten the absolute enjoyment and solitary affection of nature and as a result is facing many health problems. Gridhrasi is no exception, it is correlated to sciatica in modern science where low back ache radiating to toes in the lateral aspect of the thigh associated with stiffness is the main complaint.

Sign in / Sign up

Export Citation Format

Share Document