Related Experiment Video
Updated: Feb 8, 2026

11:51
An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
15.9K
Anchorage Reinforcement Post Molar Distalization.
Summary
Maintaining molar position after distalization is crucial. This study discusses anchorage reinforcement methods and introduces a modified Nance palatal button for continuous force application.
Area of Science:
- Orthodontics
- Dental Mechanics
Background:
- Molar distalization requires stable retention to maintain achieved positions.
- Various anchorage reinforcement techniques exist to prevent relapse after distalization.
Purpose of the Study:
- To review methods for reinforcing anchorage after maxillary molar distalization.
- To introduce a novel appliance for sustained distal force application.
Main Methods:
- Discussion of existing anchorage reinforcement strategies.
- Introduction and description of a modified Nance palatal button appliance.
Main Results:
- The modified Nance palatal button provides continuous distally directed force.
- This appliance aids in retaining distally moved molars.
Conclusions:
- Effective anchorage reinforcement is essential for successful molar distalization.
- The modified Nance palatal button offers a viable solution for continuous molar retention.
Related Concept Videos
Molar Mass
87.0K
The identity of a substance is defined not only by the types of atoms or ions it contains but by the quantity of each type of atom or ion. For example, water, H2O, and hydrogen peroxide, H2O2, are alike in that their respective molecules are composed of hydrogen and oxygen atoms. However, because a hydrogen peroxide molecule contains two oxygen atoms, as opposed to the water molecule, which has only one, the two substances exhibit very different properties.
87.0K
Reinforcement
933
Positive and negative reinforcement are key concepts in operant conditioning, a learning process where the consequences of a behavior affect the likelihood of that behavior being repeated.
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
933
Reinforcements in Concrete
476
Reinforced concrete is a composite material used extensively in construction, combining the compressive strength of concrete with the tensile strength of steel. This synergy is essential as concrete, while excellent at resisting compression, is weak under tension. Steel bars, or rebars, are embedded in the concrete to handle these tensile forces. The choice of steel is strategic; it shares a similar coefficient of thermal expansion with concrete, which ensures uniformity in response to...
476
Corrosion of Reinforcement
584
The corrosion of steel reinforcement within concrete is a process influenced by the material's inherent properties and external factors. The high pH level of around 13, provided by calcium hydroxide present in concrete, initially protects the steel reinforcement by promoting the formation of a passive iron oxide layer on its surface.
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
584
Reinforcement Schedules
509
Positive reinforcement is a powerful method for teaching new behaviors to both animals and humans. B.F. Skinner demonstrated this with his experiments using rats in a Skinner box. When a rat pressed a lever, it received a food pellet. This immediate reward encouraged the rat to repeat the behavior. This method, where a reward follows every instance of the behavior, is known as continuous reinforcement. It is highly effective for establishing new behaviors quickly.
Once a behavior is learned,...
Once a behavior is learned,...
509
Applications of the Ideal Gas Law: Molar Mass, Density, and Volume
63.5K
The volume occupied by one mole of a substance is its molar volume. The ideal gas law, PV = nRT, suggests that the volume of a given quantity of gas and the number of moles in a given volume of gas vary with changes in pressure and temperature. At standard temperature and pressure, or STP (273.15 K and 1 atm), one mole of an ideal gas (regardless of its identity) has a volume of about 22.4 L — this is referred to as the standard molar volume.
63.5K

