The White Spot Lesion Occurs Where

question 2

Multiple Choice

The white spot lesion occurs where?

• A) Directly underneath an orthodontic bracket when leakage in the bonding occurs and remains undetected throughout treatment
• B) Around bonded brackets when plaque-control methods are not practiced adequately
• C) Along the margins of bands placed on molars located too far distally for the client to remove plaque thoroughly
• D) In the cervical thirds of anterior teeth when bands rather than bonded brackets are required

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Definitions:

Island Arc

An island arc is a type of archipelago, composed predominantly of a series of volcanoes, which arcs roughly parallel to the boundary of oceanic tectonic plates that are being subducted beneath lighter continental plates.

Continental Rifting

The process by which a continent stretches and splits along a rift zone, potentially leading to the formation of a new ocean basin.

Passive Margin

A continental margin that is not associated with plate boundaries and hence experiences little seismic activity.

Subduction

The process by which one tectonic plate moves under another plate and dives into the mantle, often causing volcanic activity.