Demo

MCQs for Light Curing Paper 2 – Clinical application of curing lights: achieving success

As a reader of Dental Nursing who is registered for the online CPD verification service you will qualify for 3 hours verifiable CPD through answering 8 questions, similar to those below, every month. Complete this demonstration questionnaire to see for yourself how simple CPD at your fingertips can be.

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Complete photo-activation is dependant on:

The correct intensity The optical characteristics of the composite The colour of the protective shield The duration of exposure

The penetration of light through a composite

Will not be affected by the colour/shade Is more effective with a translucent composite Is not a significant concern Is affected by the filler content by volume

Oxygen inhibition of composites

Occurs deep within the material Is a problem that affects all resin-based restorat Occurs because the polymer chains react preferenti Can be avoided by using a transparent blocking gel

Depth of polymerisation is dependant on:

The depth of the restorative material The thickness of the material increments The distance between the optical window of the lig The use of a rubber dam

The output intensity of a curing light

Is measured in watts per square metre An accepted reasonable light intensity is 200W/m2 Can be measured with a light meter Should be checked on a regular basis

The light output from a dental curing light

Is ultraviolet Can be dangerous if shone directly into the human Should be shielded from the clinicians with a blue Should be as close as possible to the restorative

A good light curing unit

Should be easy to maintain Have a built-in light meter Be colour-coordinated with the dental chair Be voice activated

An effective light curing unit

Should be easy to decontaminate Produce an adequate intensity in a predictable way Must be regularly monitored Must cost more than £100