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Related Concept Videos

Hypersensitivities01:30

Hypersensitivities

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Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
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Electrical Current01:10

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Electrical current is defined as the rate at which charge flows. When there is a large current present, such as that used to run a refrigerator, a large amount of charge moves through the wire in a small amount of time. If the current is small, such as that used to operate a handheld calculator, a small amount of charge moves through the circuit over a long period of time. The SI unit for current is the ampere (A), named for the French physicist André-Marie Ampère (1775–1836).
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Current Density01:21

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The total amount of current flowing through one unit value of a cross-sectional area is referred to as current density. If the current flow is uniform, the amount of current flowing through a conductor is the same at all points along the conductor, even if the conductor area varies. The current density consists of the local magnitude and direction of the charge flow, which varies from point to point. Current density is measured in amperes per meter square, and direction is defined as the net...
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Since eddy currents occur only in conductors, magnets can separate metals from other materials. For example, in a recycling center, trash is dumped in batches down a ramp, beneath which lies a powerful magnet. Conductors in the trash are slowed by eddy currents, while nonmetals in the trash move on, separating from the metals. This works for all metals, not just ferromagnetic ones.
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Displacement Current01:19

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Ampère's law, in its usual form, does not work in places where the current changes with time and is not steady. Thus, Maxwell suggested including an additional contribution, called the displacement current, Id, to the real conduction current I.
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Charge and Current01:14

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Electric charge is the most fundamental quantity in an electric circuit. The effects of electric charge are encountered daily, such as when a wool sweater sticks to the human body or when a person receives a shock while walking on a carpet.
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Related Experiment Video

Updated: Feb 12, 2026

Establishment of a Mouse Model with Cough Hypersensitivity via Inhalation of Citric Acid
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Current management of dentin hypersensitivity.

Patrick R Schmidlin1, Phlipp Sahrmann

  • 1Clinic of Preventive Dentistry, Periodontology and Cariology, Centre of Dental and Oral Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland. patrick.schmidlin@zzm.uzh.ch

Clinical Oral Investigations
|January 1, 2013
PubMed
Summary
This summary is machine-generated.

Effective management of dentin hypersensitivity (DHS) involves a stepwise approach, starting with home care and progressing to in-office treatments and interventions like restorations or surgery. Lifelong maintenance and addressing causative factors are crucial for long-term success.

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Area of Science:

  • Dentistry
  • Periodontology
  • Restorative Dentistry

Background:

  • Dentin hypersensitivity (DHS) is a common clinical condition characterized by sharp, short-term pain arising from exposed dentin.
  • Effective management requires understanding various therapeutic options and patient-specific factors.

Purpose of the Study:

  • To provide a comprehensive overview of dentin hypersensitivity management strategies.
  • To summarize and discuss available therapeutic options for dentin hypersensitivity.

Main Methods:

  • A literature search was conducted on PubMed, focusing on dentin hypersensitivity prophylaxis and treatment.
  • Emphasis was placed on meta-analyses and controlled clinical trials.

Main Results:

  • Treatment should initiate with non-invasive home-care prophylaxis.
  • In-office therapies include desensitizing, precipitating, or plugging agents.
  • Persistent cases may require adhesive restorations or mucogingival surgery to create a physicomechanical barrier, considering tissue status.
  • Patient management, including positive reinforcement, can enhance treatment outcomes due to the placebo effect.

Conclusions:

  • A broad spectrum of therapeutic options exists for clinicians managing dentin hypersensitivity.
  • Treatment should address pain reduction and modify the exposed cervical dentin based on defect type.
  • Lifelong maintenance with strict control of causative factors is essential for managing dentin hypersensitivity.