Related Experiment Video
Updated: Feb 6, 2026
09:35
Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy
Published on: July 28, 2020
5.4K
Canine Retraction Using a Closed Nickel Titanium Coil Spring and an Elastic Module
Zahra Khalid1, Azhar Ali Bangash1, Ayesha Anwar1
1Department of Orthodontics, Armed Forces Institute of Dentistry, Rawalpindi.
Summary
Nickel-Titanium (Ni Ti) coil springs demonstrated a significantly faster rate of canine retraction (1.1 mm/month) compared to elastomeric modules (0.7 mm/month) in orthodontic treatment.
Area of Science:
- Orthodontics
- Biomaterials Science
- Dental Mechanics
Background:
- Canine retraction is a critical phase in orthodontic treatment.
- Various appliances are used to achieve canine retraction, each with unique biomechanical properties.
- Comparing the efficiency of different retraction systems is essential for optimizing treatment outcomes.
Purpose of the Study:
- To compare the mean rate of tooth movement during canine retraction.
- To evaluate the efficacy of Nickel-Titanium (Ni Ti) coil springs versus elastomeric modules for canine retraction.
Main Methods:
- A comparative study was conducted involving 32 patients undergoing orthodontic treatment.
- Maxillary canine retraction was performed using Ni Ti coil springs on one side and elastomeric modules (active tie-back) on the contralateral side.
- Tooth movement was measured over four weeks, and the rate of retraction was analyzed using an independent sample t-test.
Main Results:
- The mean rate of canine retraction with Ni Ti coil springs was 1.1 mm per month.
- The mean rate of canine retraction with elastomeric modules was 0.7 mm per month.
- This difference was statistically significant (p=0.05).
Conclusions:
- Nickel-Titanium (Ni Ti) coil springs provide a more rapid rate of tooth movement for canine retraction compared to elastomeric modules.
- Ni Ti coil springs may offer a more efficient orthodontic retraction solution.
Related Concept Videos
01:16Clot Retraction and Fibrinolysis
9.0K
After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
9.0K
01:17Frequency of Spring-Mass System
7.8K
One interesting characteristic of the simple harmonic motion (SHM) of an object attached to a spring is that the angular frequency, and the period and frequency of the motion, depend only on the mass and the force constant of the spring, and not on other factors such as the amplitude of the motion or initial conditions. We can use the equations of motion and Newton's second law to find the angular frequency, frequency, and period.
Consider a block on a spring on a frictionless surface. There...
Consider a block on a spring on a frictionless surface. There...
7.8K
01:12Elasticity
4.9K
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing deformation are removed. When an elastic material deforms under the action of an external force, it experiences internal resistance to the deformation. However, if no external force is applied, it returns to its original state.
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
4.9K
01:20Elasticity in Concrete
363
Upon subjecting concrete to moderate or high uniaxial compressive or tensile stresses, the strain response is non-linear relative to the stress applied. As the stress is removed, the resulting stress-strain curve deviates from the original path traced during loading, creating a hysteresis loop, indicative of the concrete's non-linear and non-elastic properties. Typically, a material's modulus of elasticity, which is a measure of the material's stiffness, is inferred from the linear...
363
01:01Elastic Potential Energy
19.7K
Elastic potential energy is the energy stored as a result of the deformation of an elastic object, such as the stretching of a spring. An object is elastic if it returns to its original shape and size after being deformed.
Potential energy is also associated with the elastic force exerted by an ideal spring. The work done by this force can be represented as a change in the elastic potential energy of the spring. Thus, the work done by a perfectly elastic spring, in one dimension, depends...
Potential energy is also associated with the elastic force exerted by an ideal spring. The work done by this force can be represented as a change in the elastic potential energy of the spring. Thus, the work done by a perfectly elastic spring, in one dimension, depends...
19.7K
01:15Strain and Elastic Modulus
9.1K
The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or geometry under tensile, volume (also known as bulk), or shear stress, respectively, and is a dimensionless quantity. The strain experienced by a body under tensile or compressive stress is called tensile or compressive strain, respectively. In contrast, the strain experienced under bulk stress and shear stress is known as volume and shear...
9.1K